阅读说明：本技术 用于感应加热的气溶胶递送装置的感受器配置 (Susceptor arrangement for inductively heated aerosol delivery device ) 是由 R·苏尔 于 2020-01-27 设计创作，主要内容包括：提供了一种与具有谐振发射器的感应加热式气溶胶递送装置一起使用的气溶胶源构件。气溶胶源构件包括基材部分,该基材部分包括多个间隔开的感受器带。每个感受器带包括围绕基材部分的纵向轴线径向间隔开的多个感受器卷绕件,其中,每个感受器卷绕件限定纵向轴线,并且其中,多个感受器卷绕件中的每个感受器卷绕件的纵向轴线基本上平行于基材部分的纵向轴线。(An aerosol source member for use with an inductively heated aerosol delivery device having a resonant emitter is provided. The aerosol-source member comprises a substrate portion comprising a plurality of spaced apart susceptor strips. Each susceptor strip includes a plurality of susceptor windings radially spaced apart about the longitudinal axis of the substrate portion, wherein each susceptor winding defines a longitudinal axis, and wherein the longitudinal axis of each susceptor winding of the plurality of susceptor windings is substantially parallel to the longitudinal axis of the substrate portion.)

1. An aerosol source member for use with an inductively heated aerosol delivery device having a resonant emitter, the aerosol source member comprising:

a substrate portion defining a longitudinal axis and comprising a plurality of spaced apart susceptor strips, wherein each susceptor strip comprises a plurality of susceptor windings radially spaced apart about the longitudinal axis of the substrate portion, wherein each of the susceptor windings defines a longitudinal axis, and wherein the longitudinal axis of each of the plurality of susceptor windings is substantially parallel to the longitudinal axis of the substrate portion.

2. The aerosol source member of claim 1, wherein the plurality of susceptor strips are substantially evenly spaced.

3. Aerosol-source member according to claim 1, characterized in that the plurality of susceptor coils in each of the susceptor strips are substantially uniformly spaced apart.

4. The aerosol source member of claim 1, wherein the plurality of susceptor windings comprises cobalt, iron, nickel and combinations thereof.

5. An aerosol source member for use with an inductively heated aerosol delivery device having a resonant emitter, the aerosol source member comprising:

a substrate portion comprising a plurality of spaced apart susceptor strips, wherein each susceptor strip extends through a center of the substrate portion and across a diameter thereof, and wherein each susceptor strip comprises a plurality of spaced apart susceptor particles.

6. An aerosol-source member according to claim 5, wherein the plurality of susceptor particles are substantially aligned within each of the susceptor bands.

7. An aerosol-source member according to claim 5, wherein the susceptor strips are substantially evenly spaced.

8. An aerosol-source member according to claim 5, wherein the plurality of susceptor particles are substantially evenly spaced within each susceptor zone.

9. An aerosol source member according to claim 1, or an aerosol source member according to claim 5, further comprising a cover layer disposed around the substrate portion.

10. An aerosol source member for use with an inductively heated aerosol delivery device having a resonant emitter, the aerosol source member comprising:

a substrate portion comprising:

a core portion;

a peripheral portion disposed around the core portion; and

a cover layer disposed around the peripheral portion,

wherein the core portion comprises a plurality of susceptor particles, the plurality of susceptor particles of the core portion being substantially uniformly distributed in the core portion and having a first distribution density, wherein the peripheral layer comprises a plurality of susceptor particles, the plurality of susceptor particles of the peripheral layer being substantially uniformly distributed in the peripheral layer and having a second distribution density, and wherein the first distribution density is greater than the second distribution density.

11. Aerosol-source member according to claim 10, wherein the core part and the surrounding part comprise the same substrate material with different distribution densities of susceptor particles.

12. An aerosol source member according to claim 10, wherein the core portion and the surrounding portion comprise separate layers of substrate having different susceptor particle distribution densities.

13. An aerosol source member according to claim 1, or an aerosol source member according to claim 5, or an aerosol source member according to claim 10, wherein the cover layer comprises a foil sublayer and a paper sublayer disposed around the foil sublayer.

14. Aerosol-source component according to claim 5 or aerosol-source component according to claim 10, characterized in that at least one susceptor particle of the plurality of susceptor particles has a shape selected from a plate-like shape, a spherical shape, a hexagonal shape, a cubic shape and an irregular shape.

15. An aerosol-source member according to claim 5 or an aerosol-source member according to claim 10, wherein at least one susceptor particle of the plurality of susceptor particles comprises a material selected from cobalt materials, iron materials, nickel materials, zinc materials, manganese materials, stainless steel materials, ceramic materials, silicon carbide materials, carbon materials and combinations thereof.

16. An aerosol source member according to claim 1 or an aerosol source member according to claim 5, wherein the substrate portion comprises extruded tobacco material.

17. Aerosol-source-member according to claim 1, aerosol-source-member according to claim 5 or aerosol-source-member according to claim 10, wherein the substrate portion comprises reconstituted tobacco sheet material.

18. An aerosol source member according to claim 1 or an aerosol source member according to claim 5 or an aerosol source member according to claim 10, wherein the substrate portion comprises at least one of tobacco beads and tobacco powder.

19. An aerosol source member as claimed in claim 1 or an aerosol source member as claimed in claim 5 or an aerosol source member as claimed in claim 10, wherein the aerosol source member has a cylindrical shape.

Technical Field

The present disclosure relates to aerosol source members, aerosol delivery articles and their use in the production of tobacco components or other inhalable forms of material. More particularly, the present disclosure relates to aerosol-source components, such as smoking articles, and aerosol delivery devices and systems that utilize electrically generated heat to heat tobacco or tobacco-derived materials, preferably without significant combustion, to provide an inhalable substance in aerosol form for human consumption.

Background

In recent years, a number of smoking articles have been proposed as improvements or replacements for tobacco-burning based smoking products. Exemplary alternatives have included devices in which a solid or liquid fuel is combusted to transfer heat to the tobacco, or in which a chemical reaction is used to provide such a heat source. Examples include the smoking articles described in U.S. patent No. 9,078,473 to word et al, which is incorporated herein by reference in its entirety.

The goal of improvements or alternatives to smoking articles is generally to provide the sensations associated with cigarette, cigar or pipe smoking without delivering significant amounts of incomplete combustion and pyrolysis products. To this end, many cigarette products, flavor generators, and drug inhalers have been proposed that use electrical energy to evaporate or heat volatile materials or attempt to provide the sensation of smoking a cigarette, cigar, or pipe without burning tobacco to a significant degree. See, for example, U.S. patent No.7,726,320 to Robinson et al and U.S. patent application publication No. 2013/0255702 to Griffith jr. et al, and U.S. patent application publication No. 2014/0096781 to Sears et al, which are incorporated herein by reference in their entirety, for various alternative smoking articles, aerosol delivery devices, and heat-generating sources described in the background. See also, for example, U.S. patent application publication No. 2015/0220232 to Bless et al, which is incorporated herein by reference in its entirety, for various types of smoking articles, aerosol delivery devices, and electrically powered heat generating sources, with reference to the brand name and commercial origin. Additional types of smoking articles, aerosol delivery devices, and electrically powered heat generating sources are listed in U.S. patent application publication No. 2015/0245659 to depianano et al, which is also incorporated herein by reference in its entirety. Other representative cigarettes or smoking articles that have been described and in some cases are commercially available include those described in the following documents: U.S. Pat. Nos. 4,735,217 to Gerth et al; U.S. patent nos. 4,922,901, 4,947,874 and 4,947,875 to Brooks et al; U.S. patent No. 5,060,671 to Counts et al; U.S. patent No. 5,249,586 to Morgan et al; U.S. patent No. 5,388,594 to Counts et al; U.S. patent No. 5,666,977 to Higgins et al; U.S. patent No. 6,053,176 to Adams et al; U.S. Pat. No. 6,164,287 to White; U.S. patent No. 6,196,218 to Voges; U.S. patent No. 6,810,883 to Fleter et al; U.S. patent No. 6,854,461 to Nichols; U.S. patent No.7,832,410 to Hon; U.S. patent No.7,513,253 to Kobayashi; U.S. Pat. No.7,726,320 to Robinson et al; U.S. patent No.7,896,006 to Hamano; U.S. patent No. 6,772,756 to Shayan; U.S. patent application publication No. 2009/0095311 to Hon; U.S. patent application publication nos. 2006/0196518, 2009/0126745, and 2009/0188490 to Hon; U.S. patent application publication No. 2009/0272379 to Thorens et al; U.S. patent application publication Nos. 2009/0260641 and 2009/0260642 to Monses et al; united states patent application publication nos. 2008/0149118 and 2010/0024834 to Oglesby et al; wang, U.S. patent application publication No. 2010/0307518; and Hon, WO2010/091593, each of which is incorporated herein by reference in its entirety.

Representative products with many attributes similar to those of traditional types of cigarettes, cigars or pipes are marketed under the following brands: sold by Philip Morris IncorporatedALPHA sold by Innovapor GmbH^TM、JOYE 510^TMAnd M4^TM(ii) a CIRRUS sold by White Cloud Cigarettes^TMAnd FLING^TM(ii) a BLU sold by Fontem vents Inc^TM(ii) a ByInternational shares Ltd: (COHITA sold by International Inc.)^TM、COLIBRI^TM、ELITE CLASSIC^TM、MAGNUM^TM、PHANTOM^TMAnd SENSE^TM(ii) a DUOPRO sold by Electronic Cigarettes, Inc^TM、STORM^TMAndEGAR sold by Australian Angal corporation (Egar Australia)^TM(ii) a eGo-C sold by Colorate corporation (Joyetech)^TMAnd eGo-T^TM(ii) a ELUSION sold by Elusion, Inc. (Elusion UK Ltd) of UK^TM(ii) a Sold by Eonsmoke Limited liabilityFINTM sold by FINITY brand Group, LLC; sold by Green smoking products Inc. (Green Smoke Inc. USA)GREENARETTE sold by Greenarette LLC^TM(ii) a From tobacco rod Co (SMOKE)) Marketed haliligan^TM、HENDU^TM、JET^TM、MAXXQ^TM、PINK^TMAnd PITBULL^TM(ii) a HEATBAR sold by Philip Morris International, Inc^TM(ii) a HYDRO IMPERIAL marketed by WANGUAN 7 (Crown7)^TM(ii) a LOGIC marketed by LOGIC technologies^TMAnd THE THE CUBAN^TM(ii) a Sold by Lucino smoking products Inc. (Luciano Smokes Inc.)Sold by Nicotek, Inc. (LLC)Sold by Sottera corporation of Sottera, IncAnd ONEJOY^TM(ii) a NO.7 sold by SS Choice LLC^TM(ii) a PREMIUM ELECTRONIC CIGARETTE marketed by high-end ELECTRONICs store LLC^TM(ii) a RAPP E-MYSTICK marketed by U.S. CORPORATION, such as tobacco GmbH (Ruyan America, Inc.)^TM(ii) a RED DRAGON sold by RED Dragon Products, LLC^TM(ii) a Sold by, e.g., tobacco Group (Holdings) LtdSold by Smoker Friendly International Limited liability (Smoker friend International)GREEN SMART sold by Smart Smoking Electronic Cigarette, Inc. (The Smart Smoking Electronic Cigarette Company Ltd.)SMOKE sold by Coastline Products LLCSMOKING sold by Smoking Evarywhere IncV2CIGS sold by VMR Products LLC^TM(ii) a Vapor NINE sold by VaporNine GmbH (VaporNine LLC)^TM(ii) a Sold by Vapor 4 Life Ltd (Vapor 4 Life, Inc.)VEPPO sold by E-CigaretteDirect, LLC^TM(ii) a Supplied by the company R.J.Reynolds VaporMistic Menthol, marketed by Mistic Ecigs; and the Vype product sold by CN Creative limited; IQOS marketed by Philip Morris International (Philip Morris International)^TM(ii) a And GLO sold by British American Tobacco^TM. Other electrically powered aerosol delivery devices, particularly those already known as so-called e-cigarettes, have been marketed under the following trade names: COOLER VISION^TM；DIRECT E-CIG^TM；DRAGONFLY^TM；EMIST^TM；EVERSMOKE^TM；HYBRID FLAME^TM；KNIGHT STICKS^TM；ROYAL BLUES^TM；And SOUTH BEACH SMOKE^TM。

Articles that produce the taste and sensation of smoking by electrically heating tobacco or tobacco-derived materials suffer from inconsistent performance characteristics. It is therefore desirable to provide a smoking article that can provide the sensation of smoking a cigarette, cigar or pipe without significantly burning, and which has advantageous performance characteristics in doing so.

Disclosure of Invention

In various embodiments, the present disclosure provides an aerosol delivery device and an aerosol source member for use with an inductively heated aerosol delivery device having a resonant emitter. The present disclosure includes, but is not limited to, the following exemplary embodiments.

Exemplary embodiment 1: an aerosol-source member for use with an inductively heated aerosol delivery device having a resonant emitter, the aerosol-source member comprising a substrate portion defining a longitudinal axis and comprising a plurality of spaced-apart susceptor strips, wherein each susceptor strip comprises a plurality of susceptor windings radially spaced apart about the longitudinal axis of the substrate portion, wherein each susceptor winding defines a longitudinal axis, and wherein the longitudinal axis of each of the plurality of susceptor windings is substantially parallel to the longitudinal axis of the substrate portion.

Exemplary embodiment 2: an aerosol-source member according to any preceding exemplary embodiment or any combination of any preceding exemplary embodiments, wherein the plurality of susceptor strips are substantially evenly spaced apart.

Exemplary embodiment 3: the aerosol-source member of any preceding exemplary embodiment or any combination of any preceding exemplary embodiments, wherein the plurality of susceptor coils in each susceptor strip are substantially evenly spaced apart.

Exemplary embodiment 4: the aerosol source member of any preceding exemplary embodiment or any combination of any preceding exemplary embodiments, further comprising a cover layer disposed about the substrate portion.

Exemplary embodiment 5: the aerosol source member of any preceding exemplary embodiment or any combination of any preceding exemplary embodiments, wherein the cover layer comprises a foil sub-layer and a paper sub-layer disposed around the foil sub-layer.

Exemplary embodiment 6: the aerosol source member of any preceding exemplary embodiment or any combination of any preceding exemplary embodiments, wherein the plurality of susceptor windings comprise cobalt, iron, nickel and combinations thereof.

Exemplary embodiment 7: the aerosol-source member of any preceding exemplary embodiment or any combination of any preceding exemplary embodiments, wherein the substrate portion comprises an extruded tobacco material.

Exemplary embodiment 8: the aerosol-source member of any preceding exemplary embodiment or any combination of any preceding exemplary embodiments, wherein the substrate portion comprises reconstituted tobacco sheet material.

Exemplary embodiment 9: the aerosol-source member of any preceding exemplary embodiment or any combination of any preceding exemplary embodiments, wherein the substrate portion comprises at least one of tobacco beads and tobacco powder.

Exemplary embodiment 10: the aerosol source member of any preceding exemplary embodiment or any combination of any preceding exemplary embodiments, wherein the aerosol source member has a substantially cylindrical shape.

Exemplary embodiment 11: an aerosol-source member for use with an inductively heated aerosol delivery device having a resonant emitter, the aerosol-source member comprising a substrate portion comprising a plurality of spaced-apart susceptor strips, wherein each susceptor strip extends through a centre of the substrate portion and across a diameter thereof, and wherein each susceptor strip comprises a plurality of spaced-apart susceptor particles.

Exemplary embodiment 12: an aerosol-source member according to any preceding exemplary embodiment or any combination of any preceding exemplary embodiments, wherein a plurality of susceptor particles are substantially aligned within each susceptor zone.

Exemplary embodiment 13: an aerosol-source member according to any preceding exemplary embodiment or any combination of any preceding exemplary embodiments, wherein the plurality of susceptor strips are substantially evenly spaced apart.

Exemplary embodiment 14: the aerosol-source member of any preceding exemplary embodiment or any combination of any preceding exemplary embodiments, wherein the plurality of susceptor particles are substantially evenly spaced within each susceptor band.

Exemplary embodiment 15: the aerosol source member of any preceding exemplary embodiment or any combination of any preceding exemplary embodiments, further comprising a cover layer disposed about the substrate portion.

Exemplary embodiment 16: the aerosol source member of any preceding exemplary embodiment or any combination of any preceding exemplary embodiments, wherein the cover layer comprises a foil sub-layer and a paper sub-layer disposed around the foil sub-layer.

Exemplary embodiment 17: the aerosol-source member of any preceding exemplary embodiment or any combination of any preceding exemplary embodiments, wherein the plurality of susceptor particles have a shape selected from a plate-like shape, a spherical shape, a hexagonal shape, a cubic shape, and an irregular shape.

Exemplary embodiment 18: the aerosol source member of any preceding exemplary embodiment or any combination of any preceding exemplary embodiments, wherein the plurality of susceptor particles comprises a material selected from cobalt materials, iron materials, nickel materials, zinc materials, manganese materials, stainless steel materials, ceramic materials, silicon carbide materials, carbon materials, and combinations thereof.

Exemplary embodiment 19: the aerosol-source member of any preceding exemplary embodiment or any combination of any preceding exemplary embodiments, wherein the substrate portion comprises an extruded tobacco material.

Exemplary embodiment 20: the aerosol-source member of any preceding exemplary embodiment or any combination of any preceding exemplary embodiments, wherein the substrate portion comprises reconstituted tobacco sheet material.

Exemplary embodiment 21: the aerosol-source member of any preceding exemplary embodiment or any combination of any preceding exemplary embodiments, wherein the substrate portion comprises at least one of tobacco beads and tobacco powder.

Exemplary embodiment 22: the aerosol source member of any preceding exemplary embodiment or any combination of any preceding exemplary embodiments, wherein the aerosol source member has a substantially cylindrical shape.

Exemplary embodiment 23: an aerosol-source member for use with an inductively heated aerosol delivery device having a resonant emitter, the aerosol-source member comprising a substrate portion comprising a core portion, a peripheral portion disposed around the core portion, and a cover layer disposed around the peripheral portion, wherein the core portion comprises a plurality of susceptor particles substantially uniformly distributed in the core portion and having a first distribution density, wherein the peripheral layer comprises a plurality of susceptor particles substantially uniformly distributed in the peripheral layer and having a second distribution density, and wherein the first distribution density is greater than the second distribution density.

Exemplary embodiment 24: an aerosol-source member according to any preceding exemplary embodiment or any combination of any preceding exemplary embodiments, wherein the core portion and the surrounding portion comprise the same substrate material with different susceptor particle distribution densities.

Exemplary embodiment 25: an aerosol-source member according to any preceding exemplary embodiment or any combination of any preceding exemplary embodiments, wherein the core portion and the surrounding portion comprise separate substrate layers having different susceptor particle distribution densities.

Exemplary embodiment 26: the aerosol source member of any preceding exemplary embodiment or any combination of any preceding exemplary embodiments, wherein the cover layer comprises a foil sub-layer and a paper sub-layer disposed around the foil sub-layer.

Exemplary embodiment 27: the aerosol-source component of any preceding exemplary embodiment or any combination of any preceding exemplary embodiments, wherein at least one susceptor particle of the plurality of susceptor particles has a shape selected from a plate-like (platelet-like) shape, a spherical shape, a hexagonal shape, a cubic shape, and an irregular shape.

Exemplary embodiment 28: the aerosol-source member of any preceding exemplary embodiment or any combination of any preceding exemplary embodiments, wherein at least one susceptor particle of the plurality of susceptor particles comprises a material selected from cobalt materials, iron materials, nickel materials, zinc materials, manganese materials, stainless steel materials, ceramic materials, silicon carbide materials, carbon materials, and combinations thereof.

Exemplary embodiment 29: the aerosol-source member of any preceding exemplary embodiment or any combination of any preceding exemplary embodiments, wherein the substrate portion comprises an extruded tobacco material.

Exemplary embodiment 30: the aerosol-source member of any preceding exemplary embodiment or any combination of any preceding exemplary embodiments, wherein the substrate portion comprises reconstituted tobacco sheet material.

Exemplary embodiment 31: the aerosol-source member of any preceding exemplary embodiment or any combination of any preceding exemplary embodiments, wherein the substrate portion comprises at least one of tobacco beads and tobacco powder.

Exemplary embodiment 32: the aerosol source member of any preceding exemplary embodiment or any combination of any preceding exemplary embodiments, wherein the aerosol source member has a cylindrical shape.

These and other features, aspects, and advantages of the present disclosure will become apparent upon reading the following detailed description and drawings, which are briefly described below. The present invention includes any two, three, four, or more combinations of the above-described embodiments set forth in this disclosure as well as any two, three, four, or more combinations of features or elements, whether or not those features or elements are expressly combined in a description of specific embodiments herein. Unless the context clearly dictates otherwise, the present disclosure is intended to be read in its entirety such that any of the separable features or elements of the disclosed invention in any of its various aspects and embodiments should be considered to be combinable.

Drawings

Having thus described the disclosure in general terms, reference will now be made to the accompanying drawings, which are not necessarily drawn to scale, and wherein:

fig. 1 shows a schematic perspective view of an aerosol delivery device comprising a control body and an aerosol source member, wherein the aerosol source member and the control body are coupled to each other, according to an exemplary embodiment of the present disclosure;

fig. 2 shows a schematic perspective view of the aerosol delivery device of fig. 1, wherein the aerosol source member and the control body are separated from each other, according to an exemplary embodiment of the present disclosure;

figure 3 shows a front view schematic of an aerosol delivery device according to an exemplary embodiment of the present disclosure;

figure 4 shows a transverse cross-sectional view of a portion of a substrate portion of an aerosol source member according to an exemplary embodiment of the present disclosure;

figure 5 shows a transverse cross-sectional view of a portion of a substrate portion of an aerosol source member according to an exemplary embodiment of the present disclosure;

figure 6 shows a transverse cross-sectional view of a portion of a substrate portion of an aerosol source member according to an exemplary embodiment of the present disclosure;

figure 7 shows a longitudinal cross-sectional view of a portion of the substrate portion of the aerosol source member of figure 6, according to an exemplary embodiment of the present disclosure;

figure 8 shows a schematic perspective view of a portion of a substrate portion of an aerosol source member according to an exemplary embodiment of the present disclosure;

figure 9 shows a transverse cross-sectional view of a portion of the substrate portion of the aerosol source member of figure 8 according to an exemplary embodiment of the present disclosure; and

fig. 10 shows a front view schematic of an aerosol delivery device according to an exemplary embodiment of the present disclosure.

Detailed Description

The present disclosure will now be described more fully hereinafter with reference to exemplary embodiments thereof. These exemplary embodiments are described so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art. Indeed, the disclosure may be embodied in many forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided so that this disclosure will satisfy applicable legal requirements. As used in this specification and the appended claims, the singular forms "a", "an", "the" and similar referents include plural referents unless the context clearly dictates otherwise. Moreover, although reference may be made herein to quantitative measurements, values, geometric relationships, and the like, unless otherwise specified, any one, or more if not all, of these may be absolute or approximate to account for acceptable variations that may occur, such as those due to engineering tolerances and the like.

As described below, exemplary embodiments of the present disclosure are directed to aerosol delivery devices. The aerosol delivery device according to the present disclosure uses electrical energy to heat (preferably without burning the material to any significant extent) the material to form an inhalable substance; the components of such a system are in the form of an article, most preferably a compact enough to be considered a hand-held device. That is, aerosols are primarily from the production of smoke as a byproduct of the combustion or pyrolysis of tobacco, in the sense that the use of the preferred aerosol delivery devices does not result in the production of smoke, but rather the use of those preferred systems results in the production of vapor resulting from the volatilization or evaporation of certain components therein. In some exemplary embodiments, the components of the aerosol delivery device may be characterized as electronic cigarettes, and those electronic cigarettes most preferably contain tobacco and/or tobacco-derived components, and thus deliver the tobacco-derived components in aerosol form.

The aerosol-generating component of certain preferred aerosol delivery devices can provide many of the sensations of smoking a cigarette, cigar or pipe (e.g., inhalation and exhalation habits, types of flavors or fragrances, sensory effects, physical sensations, use habits, visual cues provided by visible aerosols, etc.) without burning any of the ingredients therein to a significant extent, and these cigarettes, cigars or pipes are used by igniting and burning tobacco (and thus inhaling tobacco smoke). For example, a user of an aerosol delivery device according to some exemplary embodiments of the present invention may hold and use the component as if the smoker were using a conventional type of smoking article, inhale on one end of the article to inhale an aerosol produced by the article, and draw or inhale at selected intervals of time, and the like.

While the system is generally described herein in terms of embodiments relating to aerosol delivery devices such as so-called "e-cigarettes" or "tobacco heating products", it should be understood that the mechanisms, components, features and methods may be embodied in many different forms and associated with a variety of different articles. For example, the description provided herein may be used in conjunction with embodiments of conventional smoking articles (e.g., cigarettes, cigars, pipes, etc.), heated non-burning cigarettes, and related packaging for any of the products disclosed herein. Accordingly, it should be understood that the mechanisms, components, features and methods disclosed herein are discussed by way of example only in terms of embodiments relating to aerosol delivery devices, and may be implemented and used in various other products and methods.

The aerosol delivery devices of the present disclosure may also be characterized as vapor generating articles or medicament delivery articles. Accordingly, such articles or devices may be modified to provide one or more substances (e.g., scents and/or pharmaceutical or nutraceutical active ingredients) in an inhalable form or state. For example, the inhalable substance may be substantially in the form of a vapor (i.e., a substance in the gas phase at a temperature below the critical point). Alternatively, the inhalable substance may be in the form of an aerosol (i.e. a suspension of fine solid particles or liquid droplets in a gas). For the sake of simplicity, the term "aerosol" as used herein is intended to include vapors, gases or aerosols in a form or type suitable for human inhalation, whether visible or not, and whether or not they may be considered in aerosolized form. The physical form of the inhalable substance is not necessarily limited by the nature of the apparatus of the invention, but may depend on the nature of the medium and whether the inhalable substance itself is present in vapour or aerosol form. In some embodiments, the terms "vapor" and "aerosol" are interchangeable. Thus, for simplicity, the terms "vapor" and "aerosol" used to describe aspects of the present disclosure should be understood to be interchangeable, unless otherwise indicated.

In use, the aerosol delivery devices of the present disclosure can withstand many of the physical actions that an individual takes when using traditional types of smoking articles (e.g., cigarettes, cigars, or pipes for lighting and inhaling tobacco). For example, a user of an aerosol delivery device of the present disclosure may hold the article as holding a conventional type of smoking article, inhale on one end of the article to inhale an aerosol produced by the article, and inhale at selected time intervals, and the like.

The aerosol delivery device of the present disclosure generally includes a plurality of components disposed within an outer body or shell, which may be referred to as a housing. The overall design of the outer body or housing may vary, and the form or configuration of the outer body, which can define the overall size and shape of the aerosol delivery device, may vary. In general, an elongated body resembling the shape of a cigarette or cigar may be formed from a single unitary housing, or the elongated housing may be formed from two or more separable bodies. For example, the aerosol delivery device may comprise an elongate housing or body which may be generally tubular in shape and thereby resemble the shape of a conventional cigarette or cigar. In another example, the aerosol delivery device may be substantially rectangular or have a substantially rectangular cuboid shape (e.g., similar to a USB flash drive). In one example, all components of the aerosol delivery device are contained within one housing. Alternatively, the aerosol delivery device may comprise two or more housings that are joined and separable. For example, the aerosol delivery device may have a control body at one end comprising a housing containing one or more reusable components (e.g., a storage battery such as a rechargeable battery and/or a rechargeable supercapacitor, and various electronic components for controlling the operation of the article), and the smoking article may be detachably coupled at the other end with an outer body or housing containing a disposable portion (e.g., a disposable flavour-containing cartridge containing aerosol precursor material, flavourant, etc.). More specific forms, constructions, and arrangements of components within a single housing type unit or a multi-piece separable housing type unit will be apparent in light of the further disclosure provided herein. Further, the design and component configuration of various aerosol delivery devices can be understood in view of commercially available electronic aerosol delivery devices.

As will be discussed in more detail below, the aerosol delivery devices of the present disclosure include a power source (e.g., a power source), at least one control component (e.g., a device for actuating, controlling, regulating, and stopping power to generate heat, such as by controlling current flow from the power source to other components of the article, e.g., a microprocessor, either alone or as part of a microcontroller), a heater or heat generating element (e.g., a resistive heating element or other component, and/or an inductive coil or other related component, and/or one or more radiant heating elements), and an aerosol source component including or comprising a substrate portion capable of generating an aerosol upon application of sufficient heat. In some embodiments, the aerosol source member may comprise a mouth end or tip configured to allow inhalation on the aerosol delivery device to inhale the aerosol (e.g., through a defined airflow path of the article such that the generated aerosol may be drawn from the path upon inhalation). In other embodiments, the control body may comprise a mouthpiece configured to allow inhalation for aerosol inhalation.

Alignment of components within the aerosol delivery devices of the present disclosure may vary. In particular embodiments, the aerosol source member or a substrate portion of the aerosol source member may be positioned in the vicinity of the heating member in order to maximise aerosol delivery to the user. However, other configurations are not excluded. Typically, the heating member may be positioned sufficiently close to the aerosol source member or a substrate portion of the aerosol source member that heat from the heating member may volatilize the aerosol source member or substrate portion of the aerosol source member (and in some embodiments one or more fragrances, medicaments, etc. which may likewise be provided for delivery to a user) and form an aerosol for delivery to the user. When the heating element heats the aerosol source member or a substrate portion of the aerosol source member, the aerosol is formed, released or generated in a physical form suitable for inhalation by a consumer. It should be noted that the foregoing terms are intended to be interchangeable such that reference to releasing, releasing or after releasing (released) includes forming or generating, forming or generating and after forming (formed) or after generating (generated). In particular, the inhalable substance is released in the form of a vapor, or an aerosol, or a mixture of vapor and aerosol, wherein these terms are also used interchangeably herein unless otherwise indicated.

As described above, the aerosol delivery device of various embodiments may include a power source (e.g., a battery or other power source) to provide a current sufficient to provide various functions to the aerosol delivery device, such as power to a heating member, power to an induction coil, power to a control system, power to an indicator, and so forth. The power supply may take various embodiments. Preferably, the power supply is capable of delivering sufficient power to rapidly activate the heating source to provide aerosol formation and power to the aerosol delivery device through its use for a desired duration of time. The power source is preferably sized to fit conveniently within the aerosol delivery device so that the aerosol delivery device can be easily handled. In addition, the preferred power source is sufficiently lightweight so as not to detract from the desired smoking experience.

More specific forms, constructions, and configurations of components within the aerosol delivery devices of the present disclosure will be apparent from the further disclosure provided below. Furthermore, the selection of various aerosol delivery device components can be appreciated in view of commercially available electronic aerosol delivery devices. Further, the configuration of components within an aerosol delivery device may also be understood in view of commercially available electronic aerosol delivery devices.

As mentioned above, the aerosol delivery device may be configured to heat the aerosol source member or a substrate portion of the aerosol source member to generate the aerosol. In some embodiments, the aerosol delivery device can comprise a heated, non-combustible device configured to heat an extruded structure and/or substrate, a substrate material associated with the aerosol precursor composition, tobacco in solid or liquid form (e.g., beads, shreds, wrapped paper, fibrous sheets, or paper), and/or tobacco-derived material (i.e., material naturally found in tobacco that is separated or synthetically prepared directly from tobacco), or the like. Such aerosol delivery devices may include so-called e-cigarettes.

Regardless of the type of substrate material being heated, some aerosol delivery devices may comprise a heating member configured to heat the aerosol source member or a substrate portion of the aerosol source member. In some arrangements, the heating member may comprise a resistive heating member. The resistive heating member may be configured to generate heat when an electric current is directed therethrough. Such heating members typically comprise a metallic material and are configured to generate heat as a result of an electrical resistance associated with passing an electrical current. Such a resistive heating member may be positioned in the vicinity of the aerosol source member or the substrate portion of the aerosol source member. Alternatively, the heating member may be positioned in contact with the solid or semi-solid aerosol precursor composition. Such a construction may heat the aerosol source member or a substrate part of the aerosol source member to generate an aerosol. In U.S. patent No. 8,424,538 to Thomas et al; U.S. patent No. 8,464,726 to Sebastian et al; U.S. patent application publication No. 2015/0083150 to Conner et al; ademe et al, U.S. patent application publication No. 2015/0157052; and Nordskog et al, in us patent application publication No. 14/755205 filed on 30/6/2015, all of which are incorporated herein by reference in their entirety, disclose representative types of solid and semi-solid aerosol precursor compositions and formulations.

In the depicted embodiment, an induction heating configuration is used. In various embodiments, an induction heating arrangement (induction heating device) may comprise a resonant emitter and/or a resonant receiver (e.g., one or more susceptors or a plurality of susceptor particles). In this way, operation of the aerosol delivery device may require directing an alternating current to the resonant transmitter to generate an oscillating magnetic field in order to induce eddy currents in the resonant receiver. In various embodiments, the resonant receiver may be part of and/or may be arranged near the aerosol source member or a substrate part of the aerosol source member. The alternating current causes the resonant receiver to generate heat and thereby generate an aerosol from the aerosol source member. Some examples of various inductive heating methods and configurations are described in U.S. patent application publication No. 15/799,365 entitled "Induction Heated Aerosol Delivery Device" filed on 31.10.2017 and U.S. patent application publication No. 15/836,086 entitled "Quasi-Resonant Flyback Converter for an Induction-Based Aerosol Delivery Device" filed on 8.12.2017, which are incorporated herein by reference in their entirety. Further examples of various sensing-Based control components and associated circuitry are described in U.S. patent application publication No. 15/352,153 entitled "sensing-Based Aerosol Delivery Device" filed on 15.11.2016 and U.S. patent application publication No. 2017/0202266 to Sur et al, each of which is incorporated herein by reference in its entirety. It should be noted that although the depicted embodiment describes a single resonant emitter, in other embodiments, there may be multiple independent resonant emitters, such as embodiments having a segmented induction heating configuration.

Fig. 1 shows an aerosol delivery device 100 according to an exemplary embodiment of the present disclosure. The aerosol delivery device 100 may include a control body 102 and an aerosol source member 104. In various embodiments, the aerosol source member 104 and the control body 102 can be permanently or removably aligned in a functional relationship. In this regard, fig. 1 shows the aerosol delivery device 100 in a coupled configuration, while fig. 2 shows the aerosol delivery device 100 in a separated configuration. Various mechanisms may connect the aerosol source member 104 to the control body 102 to create a threaded fit, a press fit engagement, an interference fit, a slip fit, a magnetic fit, and the like. In various embodiments, the control body 102 of the aerosol delivery device 100 may be substantially rod-shaped, substantially tubular, substantially rectangular or rectangular cuboid-shaped (e.g., similar to a USB flash drive), or substantially cylindrical. It should be noted that for purposes of this disclosure, the term "substantially" should be understood to be about and/or within a certain degree of manufacturing tolerance, as would be understood by one skilled in the art. In other embodiments, the control body may take another handheld shape, such as a small box shape, various e-cigarette (small cigarette, large cigarette) (e.g., one-piece) shapes, or a key fob shape.

In particular embodiments, one or both of the control body 102 and the aerosol source member 104 may be referred to as disposable or reusable. For example, the control body 102 may include replaceable or rechargeable batteries, solid state batteries, thin film solid state batteries, rechargeable supercapacitors, etc., and thus in conjunction with any type of charging technology, including: to a wall charger, to an on-board charger (e.g., cigarette lighter socket), to a computer such as through a Universal Serial Bus (USB) cable or connector (e.g., USB2.0, 3.0, 3.1, USB Type-C), to a USB connector (e.g., USB2.0, 3.0, 3.1, USB Type-C, which may be implemented in a wall socket, an electronic device, a vehicle, etc.), a solar panel connected to a photovoltaic cell (sometimes referred to as a solar cell) or solar cell, or a wireless charger such as a charger using inductive wireless charging (e.g., including wireless charging according to the Qi wireless charging standard of the wireless charging consortium (WPC)) or a wireless Radio Frequency (RF) based charger, and an array connected to external battery(s) such as a mobile power supply to charge the device via a USB connector or wireless charger. An example of an inductive wireless charging system is described in U.S. patent application publication No. 2017/0112196 to Sur et al, which is incorporated herein by reference in its entirety. Further, in some embodiments, the aerosol source member 104 may comprise a single use device. A single-use component for controlling a body is disclosed in U.S. patent No. 8,910,639 to Chang et al, which is incorporated herein by reference in its entirety. In some embodiments, the control body 102 may be inserted into and/or coupled with a separate charging station to charge the rechargeable battery of the device 100. In some embodiments, the charging station itself may include a rechargeable power source that charges the rechargeable battery of the device 100.

Referring to fig. 2, which illustrates a perspective view of the aerosol delivery device 100 of fig. 1, wherein the aerosol source member 104 and the control body 102 are separated from one another, the aerosol source member 104 of some embodiments may comprise a heated end 106 configured to be inserted into the control body 102 and a mouth end 108 on which a user inhales to generate an aerosol. In various embodiments, at least a portion of the heating tip 106 can include a substrate portion 110. It should be noted that in other embodiments, the aerosol source member 104 need not include a heated end and/or a mouth end.

As noted above, the heating member of the depicted embodiment comprises an induction heating configuration. Fig. 3 shows a front view schematic of an aerosol delivery device 100 according to an exemplary embodiment of the present disclosure. In general, the control body 102 of the depicted embodiment comprises a resonant emitter and the aerosol source component 104 comprises a resonant receiver (e.g. one or more susceptors, or multiple susceptors), which together cause heating of at least a portion of the aerosol source component 104 (e.g. the substrate portion 110). While in various embodiments the resonant emitter and/or resonant receiver may take various forms, in the particular embodiment depicted in fig. 3 the resonant emitter includes a helical winding 128, which in some embodiments may surround a support cylinder 129, although in other embodiments, a support cylinder may not be required. In various embodiments, the resonant emitter may be made of one or more conductive materials, including, for example, silver, gold, aluminum, brass, zinc, iron, nickel, and alloys thereof, conductive ceramics such as yttrium-doped zirconia, indium tin oxide, yttrium-doped titanates, and the like, and any combination of the above materials. In the illustrated embodiment, the spiral wound element 128 is made of a conductive metal material such as copper. In further embodiments, the spiral wound element may include a non-conductive insulating cover/wrap material. Such materials may include, for example, one or more polymeric materials such as epoxies, silicone rubbers, etc. that may be useful for low temperature applications, or fiberglass, ceramics, refractory materials, etc. that may be useful for high temperature applications.

As shown, the resonant emitter 128 can extend adjacent the engagement end of the housing 118 and can be configured to substantially surround the portion of the heating end 106 of the aerosol source member 104 that includes the substrate portion 110. In this manner, the spiral wrap 128 of the illustrated embodiment may define a generally tubular configuration. In some embodiments, the support drum 129 may also define a tubular configuration and may be configured to support the spiral winding 128 such that the spiral winding 128 is proximate to, but not in contact with, the substrate portion 110. Accordingly, the support drum 129 may comprise a non-conductive material that may be substantially transparent to the oscillating magnetic field generated by the spiral wrap 128. In various embodiments, the spiral wrap 128 may be embedded or otherwise coupled to the support cylinder 129. In the embodiment shown, the spiral wrap 128 engages the outer surface of the support cylinder 129; however, in other embodiments, the winding member may be positioned at the inner surface of the support cylinder, fully embedded in the support cylinder, or have some other configuration.

As shown, the mouth end 108 of the aerosol source member 104 of some embodiments may include a filter portion 114, which may be made of, for example, cellulose acetate or polypropylene material. In various embodiments, the filter portion 114 can increase the structural integrity of the mouth end 108 of the aerosol source member 100 and/or provide filtering capabilities if desired and/or provide resistance to suction. For example, articles according to the present invention may exhibit a pressure drop of about 50 to about 250mm water pressure drop at an air flow of 17.5 cc/sec. In further embodiments, the pressure drop may be from about 60mm to about 180mm, or from about 70mm to about 150 mm. The pressure drop values can be measured using a Filtrona Filter testing station (CTS series) available from Filtrona Instruments and Automation Ltd or a Quality Testing Module (QTM) available from the Ceulean Division of Morins corporation (Molins, PLC). The filter section may vary in thickness along the length of the mouth end of the aerosol source member, for example from about 2mm to about 20mm, from about 5mm to about 20mm or from about 10mm to about 15 mm. In some embodiments, the filter portion may include discrete sections. For example, some embodiments may include a section that provides filtration, a section that provides resistance to inhalation, a hollow section that provides space for aerosol cooling, a section that provides increased structural integrity, other filtration sections, or any one or any combination of the above.

In various embodiments, there may be other components between the substrate portion 110 and the mouth end 108 of the aerosol source member 104, wherein the mouth end 108 may include a filter portion 114. For example, in some embodiments, one or any combination of the following may be positioned between the substrate portion and the mouth end: an air gap; for cooling the air phase change material; a fragrance-releasing medium; ion exchange fibers having selective chemisorption capabilities; aerogel particles as a filter medium; and other suitable materials.

As noted above, various embodiments of the present disclosure employ an inductive heating arrangement to heat a portion of an aerosol source member, such as, for example, a substrate portion of the aerosol source member. The induction heating arrangement may comprise at least one resonant emitter and at least one resonant receiver (hereinafter also referred to as susceptor, or more specifically a plurality of susceptor particles). In various embodiments, the resonant emitter may be located in the control body and the plurality of susceptor particles may be located in the aerosol source member. Additional possible components that may be included are described in U.S. patent application publication No. 15/799,365 entitled "Induction Heated Aerosol Delivery Device" filed on 31/10/2017, the entire contents of which are incorporated herein by reference.

Returning to fig. 3, the control body 102 of the depicted embodiment may include: a housing 118 including an opening 119 defined in a mating end thereof; a flow sensor 120 (e.g., a suction sensor or a pressure switch); a control component 122 (e.g., a microprocessor, a Printed Circuit Board (PCB) including a microprocessor and/or microcontroller, etc., alone or as part of a microcontroller); a power source 124 (e.g., a rechargeable battery and/or a rechargeable super-capacitor); and an end cap that may include an indicator 126, such as a Light Emitting Diode (LED).

Examples of possible power sources are described in U.S. patent No. 9,484,155 to Peckerar et al, and U.S. patent application publication No. 2017/0112191 filed by Sur et al on 21/10/2015, the disclosures of which are each incorporated herein by reference in their entirety. With respect to the flow sensor 120, representative current regulating components for aerosol delivery devices and other current controlling components, including various microcontrollers, sensors, and switches, are described in U.S. Pat. No. 4,735,217 to Gerth et al, U.S. Pat. Nos. 4,922,901, 4,947,874, and 4,947,875 to Brooks et al, U.S. Pat. No. 5,372,148 to McCafferty et al, U.S. Pat. No. 6,040,560 to Fleischhauer et al, U.S. Pat. No.7,040,314 to Nguyen et al, and U.S. Pat. No. 8,205,622 to Pan, all of which are incorporated herein by reference in their entirety. Reference may also be made to the control scheme described in U.S. patent No. 9,423,152 to amplini et al, which is incorporated herein by reference in its entirety. In one embodiment, the indicator 126 may include one or more light emitting diodes, quantum dot based light emitting diodes, or the like. In some embodiments, the indicator 126 may be in communication with the control component 122 and, for example, when coupled to the control body 102, light upon detection by the flow sensor 120 that a user is inhaling on the aerosol source member 104.

In some embodiments, the input element may be included in the aerosol delivery device (and may replace or supplement the airflow sensor or pressure sensor). In various embodiments, an input may be included to allow a user to control the function of the device and/or output information to the user. Any component or combination of components may be employed as an input for controlling the function of the device. For example, one or more buttons may be used as described in U.S. patent publication No. 2015/0245658 to Worm et al, which is incorporated herein by reference in its entirety. Likewise, a touch screen may be used as described in U.S. patent application publication No. 2016/0262454 to Sears et al, which is incorporated herein by reference in its entirety. As a further example, a component adapted for gesture recognition based on a specified motion of the aerosol delivery device may be used as an input. See U.S. patent application publication No. 2016/0158782 to Henry et al, which is incorporated herein by reference in its entirety. As yet another example, a capacitive sensor may be implemented on the aerosol delivery device to enable a user to provide input, for example, by touching a surface of the device on which the capacitive sensor is implemented.

Further other components may be employed in the aerosol delivery devices of the present disclosure. For example, U.S. patent No. 5,154,192 to springel et al discloses an indicator for a smoking article; U.S. patent No. 5,261,424 to small springel discloses a piezoelectric sensor that can be associated with the mouth end of the device to detect user lip activity associated with the application of suction and subsequent heating that triggers the heating device; U.S. patent No. 5,372,148 to McCafferty et al discloses a suction sensor for controlling the flow of energy into a heating load array in response to a pressure drop through a mouthpiece; U.S. patent No. 5,967,148 to Harris et al discloses a receptacle in a smoking device, the receptacle including a flag that detects non-uniformity in infrared transmittance of an inserted component and a controller that executes a detection program when the component is inserted into the receptacle; U.S. patent No. 6,040,560 to fleischeuer et al describes a defined executable power cycle with multiple differential phases; U.S. patent No. 5,934,289 to Watkins et al discloses photonic-optoelectronic components; U.S. patent No. 5,954,979 to Counts et al discloses means for varying the resistance to draw by a smoking device; U.S. patent No. 6,803,545 to Blake et al discloses a specific battery configuration for use in a smoking device; U.S. patent No.7,293,565 to Griffen et al discloses various charging systems for use with smoking devices; U.S. patent No. 8,402,976 to Fernando et al discloses a computer interaction means for a smoking device to facilitate charging and allow computer control of the device; U.S. patent No. 8,689,804 to Fernando et al discloses an identification system for a smoking device; and PCT patent application publication WO2010/003480 to Flick discloses a fluid flow sensing system indicating puff in an aerosol generating system; all of the above disclosures are incorporated herein by reference in their entirety.

Other suitable current drive/de-drive mechanisms may include a temperature-actuated on/off switch or a lip pressure-actuated switch, or a touch sensor (e.g., a capacitive touch sensor) configured to sense contact between a user (e.g., a user's mouth or finger) and one or more surfaces of the aerosol delivery device. An exemplary mechanism that can provide such suction actuation capability includes a model 163PC01D36 silicon sensor manufactured by MicroSwitch, Honeywell, Inc. With such a sensor, the heating member can be activated quickly by a change in pressure when the consumer inhales on the device. Furthermore, flow sensing devices such as those using hot wire anemometry principles may be used to cause energization of the heating assembly sufficiently quickly after sensing a change in air flow. Another available suction actuated switch is a pressure differential switch, such as model A MPL-502-V from Micro Pneumatic Logic, Inc. of Loudellburgh, Florida. Another suitable suction actuation mechanism is a sensitive pressure sensor (e.g., equipped with an amplifier or gain stage) which is in turn coupled with a comparator to detect a predetermined threshold pressure. Yet another suitable suction actuation mechanism is a vane deflected by the airflow, the movement of which is detected by a motion sensing device. Yet another suitable actuation mechanism is a piezoelectric switch. Another switch that may be used is a suitably connected hounwell MicroSwitch Microbridge Airflow Sensor (Honeywell MicroSwitch air flow Sensor), part number AWM 2100V, from MicroSwitch division of hounwell corporation, virtude, illinois. Other examples of demand operated electrical switches that may be used in a heating circuit according to the present disclosure are described in U.S. patent No. 4,735,217 to Gerth et al, which is incorporated herein by reference in its entirety. Other suitable differential switches, analog pressure sensors, flow sensors, etc., will be apparent to those skilled in the art in view of this disclosure. In some embodiments, a pressure sensing tube or other passage providing a fluid connection between the puff-actuated switch and the aerosol source member may be included in the housing such that pressure changes during the puff are readily identified by the switch. Other exemplary suction actuation devices that may be useful according to the present disclosure are disclosed in U.S. patent nos. 4,922,901, 4,947,874 and 4,947,874 to Brooks et al, 5,372,148 to McCafferty et al, 6,040,560 to Fleischhauer et al, 7,040,314 to Nguyen et al, and 8,205,622 to Pan, all of which are incorporated herein by reference in their entirety.

Further examples of components disclosed in the following documents relating to electronic aerosol delivery articles and materials or components that may be used in the articles of the present disclosure include U.S. patent nos. 4,735,217 to Gerth et al; U.S. patent No. 5,249,586 to Morgan et al; U.S. patent No. 5,666,977 to Higgins et al; U.S. patent No. 6,053,176 to Adams et al; U.S. Pat. No. 6,164,287 to White; U.S. patent No. 6,196,218 to Voges; U.S. patent No. 6,810,883 to Fleter et al; U.S. patent No. 6,854,461 to Nichols; U.S. patent No.7,832,410 to Hon; U.S. patent No.7,513,253 to Kobayashi; U.S. patent No.7,896,006 to Hamano; U.S. patent No. 6,772,756 to Shayan; U.S. Pat. Nos. 8,156,944 and 8,375,957 to Hon; U.S. patent No. 8,794,231 to Thorens et al; U.S. patent No. 8,851,083 to Oglesby et al; U.S. Pat. Nos. 8,915,254 and 8,925,555 to Monses et al; U.S. patent No. 9,220,302 to Depiano et al; U.S. patent application publication nos. 2006/0196518 and 2009/0188490 to Hon; united states patent application publication No. 2010/0024834 to Oglesby et al; wang, U.S. patent application publication No. 2010/0307518; PCT patent application publication WO2010/091593 to Hon; and Foo, PCT patent application publication WO2013/089551, each of which is incorporated herein by reference in its entirety. Further, U.S. patent application publication No. 2017/0099877, which is incorporated herein by reference in its entirety, discloses a capsule that can be included in a key-button configuration of an aerosol delivery device and an aerosol delivery device. The various materials disclosed in the foregoing documents may be incorporated into the devices of the present disclosure in various embodiments, and the foregoing disclosure is incorporated herein by reference in its entirety.

Fig. 4 shows a cross-sectional view of a portion of the substrate portion 110 of the aerosol source member 104 of fig. 6, according to an exemplary embodiment of the present disclosure. In the depicted embodiment, the substrate portion 110 of the aerosol-source member 104 comprises a substrate material 148 consisting of a core portion 150, a surrounding portion 152 and a cover layer 154, wherein a plurality of susceptor particles 160 are dispersed within the substrate material 148. In the depicted embodiment, the substrate material 148 comprises a single layer including a core portion 150 and a peripheral portion 152; however, in other embodiments (as will be described in detail below), the substrate portion 110 may include one layer having a core portion and a separate layer having a peripheral portion. In various embodiments, the plurality of susceptor particles comprise a resonant receiver of an induction heating arrangement. In various embodiments, the substrate material 148 of the depicted embodiments may comprise a tobacco material. For example, in some embodiments, the tobacco material can include tobacco-containing beads, tobacco powder, tobacco shreds, tobacco rods, reconstituted tobacco material, tobacco cast sheets, and combinations thereof, and/or finely ground tobacco, tobacco extracts, spray-dried tobacco extracts, or other forms of tobacco mixed with optional inorganic materials (e.g., calcium carbonate), rice flour, corn meal, carboxymethylcellulose (CMC), guar gum, sodium alginate, optional flavoring agents, and aerosol-forming materials to form a substantially solid, semi-solid, or formable (e.g., extrudable) substrate.

In the depicted embodiment, the core portion 150 is located at a substantially radial center of the substrate portion 110, and the peripheral portion 152 is disposed around the core portion 150. In various embodiments, the diameter of the core portion 150 is less than the overall diameter of the substrate portion 110 and may be expressed as a function of the overall diameter of the substrate portion. For example, the core portion may have a diameter of about 1/8 to 3/4 in some embodiments, and about 1/4 to 1/2 in some embodiments, of the overall diameter of the substrate portion of the aerosol source member. Likewise, the diameter of the peripheral portion 152 is less than the overall diameter of the substrate portion and may be expressed as a function of the diameter of the core portion. For example, in some embodiments, the diameter of the peripheral portion may be about 1.5 to 8 times the diameter of the core portion, and in some embodiments may be about 2 to 4 times the diameter of the core portion. In one instance, the diameter of the core portion may be about 2mm and the diameter of the peripheral portion may be in the range of about 6.5mm to about 12mm inclusive.

In various embodiments, the core portion 150 of the substrate portion 110 may define a first susceptor particle distribution density, which may generally include a relative concentration of susceptor particles 160 within the core portion 150. Likewise, the peripheral portion 152 of the substrate portion 110 may define a second susceptor particle distribution density, which may generally include a relative concentration of susceptor particles 160 within the core portion 152. In various embodiments, the distribution density of susceptor particles can be defined in a number of different ways. For example, in some embodiments, the first distribution density may be defined as the volume of susceptor particles in the core portion as a function of the total volume of the core portion. Likewise, the second distribution density may be defined as the volume of susceptor particles in the surrounding portion as a function of the total volume of the surrounding portion. In other embodiments, the first distribution density may be defined as the volume of susceptor particles in the core portion as a function of the total volume of the substrate portion. Likewise, the second distribution density may be defined as the volume of susceptor particles in the peripheral portion as a function of the total volume of the substrate portion. In other embodiments, the first distribution density may be defined as the volume of susceptor particles in the core portion as a function of the total area of the cross-section of the core portion across the substrate portion. Likewise, the second distribution density may be defined as the volume of susceptor particles in the surrounding portion as a function of the total area of the surrounding portion across the same cross-section of the substrate portion. In other embodiments in which the susceptor particles have substantially the same size or fall within the same particle size range, the first distribution density may be defined as the number of susceptor particles in the core portion as a function of the volume of the core portion. Likewise, the second distribution density may be defined as the number of susceptor particles in the surrounding portion as a function of the volume of the surrounding portion.

Regardless of how the distribution density is calculated, the present invention provides that the first distribution density (distribution density of susceptor particles in the core portion) is greater than the second distribution density (distribution density of susceptor particles in the peripheral portion). In this way, the concentration of susceptor particles in the core portion is higher than the concentration of susceptor particles in the surrounding portion. It should be noted that in some embodiments, the distribution density of the surrounding portion may be substantially zero, and thus, the core portion may include a plurality of susceptor particles, but the surrounding portion need not include a plurality of susceptor particles. In one embodiment, for example, the volume of susceptor particles in the core portion may be in the range of about 4% to about 8% inclusive of the total volume of the substrate portion (including or not including the cover portion), and the volume of susceptor particles in the peripheral portion may be in the range of 0% to less than 4% inclusive of the total volume of the substrate portion (including or not including the cover portion).

In some embodiments, the substrate material may comprise an extruded tobacco structure. For example, in some embodiments, the extruded structure may include or may consist essentially of tobacco, tobacco-related materials, glycerin, water, binder materials and/or fillers and curing agents, such as, for example, one or more of calcium carbonate, rice flour, corn flour, and the like. In various embodiments, suitable binder materials may include alginates, such as ammonium alginate, propylene glycol alginate, potassium alginate, and sodium alginate. Alginates, particularly high viscosity alginates, can be used in conjunction with controlled levels of free calcium ions. Other suitable binder materials include hydroxypropyl cellulose, such as Klucel H from argylon corporation; hydroxypropyl methylcellulose, such as Methocel K4MS from the dow chemical company; hydroxyethyl cellulose, such as Natrosol 250MRCS from argron corporation; microcrystalline cellulose, such as Avicel from FMC corporation; methylcellulose, such as Methocel A4M from the dow chemical company; sodium carboxymethylcellulose, such as CMC 7HF and CMC 7H4F from hegmas corporation (Hercules Inc). Still other possible binder materials include starch (e.g., corn starch), guar gum, carrageenan, locust bean gum, pectin, and xanthan gum. In some embodiments, a combination or mixture of two or more binder materials may be employed. Other examples of adhesive materials are described, for example, in U.S. patent No. 5101839 to Jakob et al and U.S. patent No. 4924887 to Raker et al, each of which is incorporated herein by reference in its entirety. In some embodiments, the aerosol-forming material may be provided as part of a binder material (e.g., propylene glycol alginate). Further, in some embodiments, the binder material may include nanocellulose derived from tobacco or other biomass.

In some embodiments, the substrate material may comprise an extruded material, as described in U.S. patent application publication No. 2012/0042885 to Stone et al, which is incorporated herein by reference in its entirety. In yet another embodiment, the substrate material may comprise an extruded structure and/or substrate formed from pelletized (marumarized) tobacco and/or non-pelletized tobacco. Pelletized tobacco is known, for example, from U.S. patent No. 5,105,831 to Banerjee et al, which is incorporated herein by reference in its entirety. Pelletized tobacco comprises about 20% to about 50% by weight of the tobacco mixture in powder form, glycerin (about 20% to about 30% by weight), calcium carbonate (typically about 10% to about 60% by weight, typically about 40% to about 60% by weight), and a binder and/or flavoring agent as described herein. In various embodiments, the extruded material may have one or more longitudinal openings. In other embodiments, the extruded material may have two or more regions, for example, an extrudate with a wagon wheel cross-section.

Additionally or alternatively, the substrate material may comprise, or consist essentially of, an extruded structure and/or substrate comprising or consisting of tobacco, glycerine, water and/or binder material, and further configured to substantially maintain its structure throughout the aerosol-generating process. That is, the substrate material may be configured to substantially maintain its shape (i.e., the substrate material does not continuously deform under an applied shear stress) throughout the aerosol-generating process. While such exemplary substrate materials may include liquid and/or some moisture content, the substrate material may remain substantially solid throughout the aerosol-generating process and may substantially maintain structural integrity throughout the aerosol-generating process. In U.S. patent application publication No. 2015/0157052 to Ademe et al; U.S. patent application publication No. 2015/0335070 to Sears et al; U.S. patent No. 6,204,287 to White; and U.S. patent No. 5,060,676 to heart et al, which is incorporated herein by reference in its entirety, describe exemplary tobacco and/or tobacco-related materials suitable for use as substantially solid substrate materials.

In other embodiments, the substrate material may include a flavored and aromatic tobacco mixture in the form of cut filler. In another embodiment, the substrate material may comprise reconstituted tobacco material, such as described in U.S. patent No. 4,807,809 to Pryor et al; U.S. patent nos. 4,889,143 to Pryor et al and 5,025,814 to Raker, which are incorporated herein by reference in their entirety. Further, the reconstituted tobacco material may include reconstituted tobacco paper for cigarette types as described in r.j. reynolds tobacco company monograph (1988) chemical and biological research on heated novel cigarette prototypes replacing tobacco, the entire contents of which are incorporated herein by reference. For example, the reconstituted tobacco material may comprise a sheet material comprising tobacco and/or tobacco-related material. Thus, in some embodiments, the substrate material may be formed from a roll of reconstituted tobacco material. In another embodiment, the substrate material may be formed from shreds, strips, and/or the like of reconstituted tobacco material. In another embodiment, the tobacco sheet may comprise a crimped sheet of reconstituted tobacco material. In some embodiments, the substrate material may include superposed layers (e.g., gathered webs) that may or may not include a thermally conductive component. An example of a Substrate material comprising a series of overlapping layers (e.g., an aggregated web) of an initial Substrate sheet formed from a fibrous filler material, an Aerosol-forming material, and a plurality of thermally conductive components is described in U.S. patent application publication No. 15/905, 320 entitled "Heat coupling Substrate for Electrically Heated Aerosol Delivery Device," filed on 26.2.2018, incorporated herein by reference in its entirety.

In some embodiments, the substrate material may include microcapsules, beads, granules, and/or the like having tobacco-related materials. For example, representative microcapsules can be generally spherical in shape and can have an outer cover or shell containing a liquid center region of tobacco-derived extract and/or the like. In some embodiments, the substrate material may comprise a plurality of microcapsules, each microcapsule being formed in a hollow cylindrical shape. In some embodiments, the substrate material may comprise a binder material configured to maintain the structural shape and/or integrity of the plurality of microcapsules formed in the hollow cylindrical shape.

The tobacco used in one or more of the substrate materials may include or be derived from tobacco such as flue-cured, burley, Oriental (Oriental), Maryland, dark flue-cured and orchid (Rustica) tobaccos, as well as other exotic or specialty tobaccos, or mixtures thereof. In U.S. patent No. 4,836,224 to Lawson et al; U.S. patent No. 4,924,888 to perfect et al; U.S. patent No. 5,056,537 to Brown et al; U.S. patent No. 5,159,942 to Brinkley et al; U.S. patent No. 5,220,930 to Gentry; U.S. patent No. 5,360,023 to Blakley et al; U.S. patent No. 6,701,936 to Shafer et al; U.S. patent No. 6,730,832 to Dominguez et al; U.S. patent No.7,011,096 to Li et al; U.S. patent No.7,017,585 to Li et al; U.S. patent No.7,025,066 to Lawson et al; U.S. patent application publication No. 2004/0255965 to perfect et al; various representative tobacco types, processed tobacco types, and types of tobacco blends are set forth in Bereman's PCT publication No. WO 02/37990 and Bombick et al, Foundation application, journal of toxicology 39, pages 11-17 (1997); the entire disclosure of the above documents is incorporated herein by reference.

In various embodiments, the substrate material may have a variety of configurations based on the various materials used therein. For example, the sample substrate material can include up to about 98% by weight, up to about 95% by weight, or up to about 90% by weight of tobacco and/or tobacco-related material. The sample substrate material can also include up to about 25%, about 20%, or about 15% by weight water, specifically about 2% to about 25%, about 5% to about 20%, or about 7% to about 15% by weight water. Flavorants and the like (including, for example, drugs such as nicotine) can comprise up to about 10%, up to about 8%, or up to about 5% by weight of the aerosol delivery member.

In some embodiments, flame retardant/flame retardant materials and other additives may be included in the substrate material, and may include organophosphorus compounds, borax, hydrated alumina, graphite, potassium tripolyphosphate, dipentaerythritol, pentaerythritol, and polyols. Other agents such as nitrite phosphonates, monoammonium phosphates, ammonium polyphosphates, ammonium bromides, ammonium borates, ethanolammonium borates, ammonium sulfamates, halogenated organic compounds, thioureas, and antimony oxides are suitable, but not preferred. In various aspects of flame retardant, burn and/or char inhibiting materials used in substrate materials and/or other components, whether used alone or in combination with each other and/or other materials, it is most preferred to provide the desired properties without undesirable outgassing or melting-type behavior. Other examples include diammonium phosphate and/or other salts configured to help prevent ignition, pyrolysis, combustion, and/or charring of the substrate material by the heat source. In U.S. patent No. 4,947,874 to Brooks et al; U.S. patent No.7,647,932 to Cantrell et al; U.S. patent No. 8,079,371 to Robinson et al; U.S. patent No.7,290,549 to Banerjee et al; and Crooks et al, U.S. patent application publication No. 2007/0215167, which proposes various ways and methods of incorporating tobacco into smoking articles, particularly smoking articles designed to not intentionally burn nearly all of the tobacco in those smoking articles; the entire disclosure of the above documents is incorporated herein by reference.

According to other embodiments of the present disclosure, the substrate material may also incorporate tobacco additives of the type conventionally used in the manufacture of tobacco products. These additives may include types of materials used to enhance the flavor and aroma of tobacco used in the production of cigars, cigarettes, pipes, and the like. For example, these additives may include various cigarette casing and/or dressing components. See, for example, U.S. patent No. 3,419,015 to Wochnowski; U.S. patent No. 4054145 to Berndt et al; U.S. patent No. 4,887,619 to Burcham et al; U.S. patent No. 5,022,416 to Watson; U.S. patent nos. 5,103,842 to Strang et al and 5,711,320 to Martin; the disclosure of which is incorporated herein by reference in its entirety. Preferred shell materials may include water, sugar and syrups (e.g., sucrose, glucose and high fructose corn syrup), humectants (e.g., glycerin or propylene glycol) and flavorants (e.g., cocoa and licorice). Those additional components may also include a topical material (e.g., a flavoring agent, such as menthol). See, for example, U.S. patent No. 4,449,541 to Mays et al, the disclosure of which is incorporated herein by reference in its entirety. Additional materials that may be added include those disclosed in U.S. patent No. 4,830,028 to Lawson et al and U.S. patent No. 8,186,360 to Marshall et al, the disclosures of which are incorporated herein by reference in their entirety.

Various types of flavourants or materials that alter the sensory or organoleptic properties or properties of the mainstream aerosol of a smoking article are suitable for use. In some embodiments, such flavoring agents may be provided from sources other than tobacco, and may be natural or artificial. For example, some flavourants may be applied or incorporated into the substrate material and/or those regions of the smoking article where aerosol is generated. In some embodiments, such formulations may be supplied directly to a heating chamber or region proximate a heat source, or provided with a substrate material. Exemplary flavoring agents may include, for example, vanillin, ethyl vanillin, cheese, tea, coffee, fruit (e.g., apple, cherry, strawberry, peach and citrus-flavored, including lime and lemon), maple, menthol, peppermint, spearmint, wintergreen, nutmeg, clove, lavender, cardamom, ginger, honey, anise, sage, cinnamon, sandalwood, jasmine, acerola, cocoa, licorice; and flavors and flavor packs of the type and character traditionally used as flavors for cigarettes, cigars and pipe tobacco. Syrups such as high fructose corn syrup may also be suitable for use.

Flavoring agents may also include acidic or basic characteristics (e.g., organic acids such as levulinic acid, succinic acid, pyruvic acid, and benzoic acid). In some embodiments, the flavoring agent may be combined with elements of the base material, if desired. Suitable exemplary plant-derived compositions are disclosed in U.S. patent No. 9,107,453 to Dube et al and U.S. patent application publication No. 2012/0152265, the disclosures of which are incorporated herein by reference in their entirety. Any material such as flavors, casings, etc., that can be used in conjunction with a tobacco material to affect its sensory characteristics, including organoleptic properties, can be combined with the substrate material. In particular, organic acids can be incorporated into the substrate material to affect the flavor, feel, or sensory characteristics of a drug, such as nicotine, that can be incorporated with the substrate material. For example, organic acids such as levulinic, lactic and pyruvic acids may be included in the tobacco substrate together with nicotine, and any combination of organic acids in amounts equimolar to nicotine (based on total organic acid content) is suitable. For example, in some embodiments, the substrate material can include about 0.1 to about 0.5 moles of levulinic acid per mole of nicotine, about 0.1 to about 0.5 moles of pyruvic acid per mole of nicotine, about 0.1 to about 0.5 moles of lactic acid per mole of nicotine, or a combination thereof, until a concentration is reached where the total amount of organic acids present is equimolar to the total amount of nicotine present in the substrate material. Various other examples of organic acids that can be used to produce the substrate material are disclosed in U.S. patent application publication No. 2015/0344456 to Dull et al, which is incorporated herein by reference in its entirety.

The selection of these additional components may be variable based on factors such as the desired organoleptic properties of the smoking article, and the present disclosure is intended to encompass any such additional components that would be apparent to one skilled in the art of tobacco and tobacco-related or tobacco-derived products. See "Tobacco Flavoring Substances and Methods" by Gutcho of Noyes Data Corp. (Noyes Data Corp.) (1972) and "Tobacco Flavoring for Smoking Products" by Leffingwell et al (1972), the disclosures of which are incorporated herein by reference in their entirety.

In some embodiments, the substrate material may include other materials having various inherent characteristics or properties. For example, the substrate material may comprise a plasticized material in the form of rayon or regenerated cellulose. As another example, viscose (e.g., commercially available) Suitably, the viscose is a regenerated cellulose product incorporating silica. Some carbon fibers may include at least 95% or more carbon. Similarly, natural cellulosic fibers such as cotton are suitable and may be impregnated with or otherwise treated with silica, carbon or metal particles to enhance flame retardant performance and minimize off-gassing, especially any undesirable off-gassing components that adversely affect flavor (especially minimizing the potential for any toxic off-gassing products). The cotton may be treated with, for example, boric acid or various organophosphate compounds, by dipping, spraying orOther techniques known in the art provide the desired flame retardant properties. These fibers may also be treated with organic or metallic nanoparticles (coating, impregnation, or both by dipping, spraying, or vapor deposition) to impart the desired flame retardancy without undesirable exhaust emissions or melt-type behavior.

As noted above, the substrate material may also include an aerosol-forming material, such as an aerosol precursor composition. In some embodiments, the aerosol precursor composition may comprise one or more humectants, such as propylene glycol, glycerin, and/or the like. In various embodiments, the amount of aerosol precursor composition used within the aerosol delivery device can be such that the aerosol delivery device exhibits acceptable sensory and organoleptic properties as well as desirable performance properties. For example, in some embodiments, aerosol precursor compositions (such as, for example, glycerol and/or propylene glycol) can be used to produce a visible aerosol that resembles the mainstream appearance of tobacco smoke in many respects. For example, the amount of aerosol precursor composition incorporated into the substrate material of a smoking article can be in the range of about 4.5 grams or less, 3.5 grams or less, about 3 grams or less, about 2.5 grams or less, about 2 grams or less, about 1.5 grams or less, about 1 gram or less, or about 5 grams, however, it should be noted that in other embodiments, values outside of these ranges are possible.

In U.S. patent No. 4,793,365 to Sensabaugh, jr. et al; U.S. patent No. 5,101,839 to Jacob et al; PCT WO 98/57556 to Biggs et al; representative types of other aerosol precursor compositions are set forth in R.J. Reynolds Tobacco monograph, Chemical and Biological students on New Cigarette Heat institute of Burn Tobacco (1988); the above disclosure is incorporated herein by reference. In some aspects, the aerosol source member may produce a visible aerosol (and if desired air cooled) upon application of sufficient heat thereto, and the aerosol source member may produce a "smoke-like" aerosol. In other aspects, the aerosol source member may produce an aerosol that is substantially invisible, but identified as present by other characteristics such as flavor or mouthfeel. Thus, the properties of the aerosol produced may vary depending on the particular components of the aerosol delivery member. In various embodiments, the aerosol source member may be chemically simple relative to the chemical nature of the smoke produced by burning tobacco.

In some embodiments, an aerosol precursor composition, also referred to as a vapor precursor composition or an "electronic liquid," can comprise a variety of components including, for example, a polyol (e.g., glycerol, propylene glycol, or mixtures thereof), nicotine, tobacco extract, and/or flavorants. In U.S. patent No.7,217,320 to Robinson et al, U.S. patent publication No. 2013/0008457 to Zheng et al; U.S. patent publication No. 2013/0213417 to Chong et al; collett et al, U.S. patent publication No. 2014/0060554; lipowicz et al, U.S. patent publication No. 2015/0030823; and Koller, U.S. patent publication No. 2015/0020830, and WO 2014/182736 to Bowen et al, the contents of which are incorporated herein by reference in their entirety, describe and characterize some possible types of aerosol precursor components and compositions. Other aerosol precursors that may be employed include those already included in the following products: R.J. Reynolds Vapor companyProducing a product; BLUTM product of Fontem vents B.V.; MISTIC MEDIHOL product from Mistic Ecigs; MARK TEN product of Luma corporation (Nu Mark LLC); JuUL Labs JUUL product; and the product of VYPE from CN Creative Co. It is also possible that so-called "juice" for electronic cigarettes is already available from Johnson Creek Enterprises LLC. Further possible exemplary aerosol precursor compositions are sold under the trade names: BLACK NOTE, COSMIC FOG, MILKMAN E-LIQUID, FIVE PAWNS, VAPOR CHEF, VAPE WILD, BOOSTED, THEE STEAM FACTORY, MECH SAUCE, CASEY JONES MAINLINE RESERVE, DR.CRIMTY' S V-LIQUID, SMILY E LIQUID, BEANOWN VAPOR, CUTWOOD, CYCLOPS VAPOR, SICARBOY, GOOD LIFE VAPOR,TELEOS, PINUP VAPORS, SPACE JAM, MT. BAKER VAPOR and JIMMY THE JUICE MAN.

The amount of aerosol precursor incorporated within the aerosol source member is such that the aerosol generating member provides acceptable sensory and desirable performance characteristics. For example, it is desirable to use a sufficient amount of aerosol-forming material for generating a visible aerosol that resembles the mainstream of tobacco smoke in many respects. The amount of aerosol precursor within the aerosol-generating system may depend on factors such as the number of puffs desired for each aerosol-generating member. In one or more embodiments, about 0.5 ml or more, about 1 ml or more, about 2 ml or more, about 5 ml or more, or about 10 ml or more of the aerosol precursor composition can be included.

Referring back to fig. 4, as described above, the core portion 150 and the surround portion 152 include a plurality of susceptor particles 160 that include resonant receivers of the induction heating configuration of the depicted embodiment. In various embodiments, the plurality of susceptor particles 160 may have various shapes, sizes, and materials, which may be incorporated into the same substrate portion in some embodiments. For example, in some embodiments, one or more of the plurality of susceptor particles 160 may have a substantially spherical shape, a sheet-like shape, a substantially cubic shape, an irregular shape (e.g., a shape having one or more (e.g., a number of) sides having different sizes), or any combination thereof. In various embodiments, the plurality of susceptor particles 160 may comprise a ferromagnetic material including, but not limited to, cobalt, iron, nickel, zinc, manganese, and any combination thereof. In additional embodiments, the plurality of susceptor particles 160 may comprise other materials, including, for example, other porous metal materials such as aluminum or stainless steel, as well as ceramic materials such as silicon carbide, carbon materials, and any combination of any of the above. In yet another embodiment, the plurality of susceptor particles may comprise other conductive materials, including metals such as copper, alloys of conductive materials, or other materials in which one or more conductive materials are embedded. Although in various embodiments the size of the porous susceptor particles may vary, in some embodiments, one or more of the plurality of porous susceptor support particles may have a diameter in the inclusive range of about 100 micrometers (0.1mm) to about 2mm, and in some embodiments, one or more of the plurality of porous susceptor particles may have a diameter in the inclusive range of about 0.5mm to about 1.5 mm.

In the depicted embodiment, a change in current in the spiral winding 128 (i.e., a resonant emitter), as directed by the control component 122 from the power supply 124 to the spiral winding 128 (e.g., via the drive circuit), may generate an alternating electromagnetic field that penetrates the plurality of susceptor particles 160 (i.e., a resonant receiver), thereby generating eddy currents within the plurality of susceptor particles 160. The alternating electromagnetic field may be generated by directing an alternating current to the spiral winding 128. As described above, in some embodiments, the control component 122 may include an inverter or inverter circuit configured to convert direct current provided by the power source to alternating current provided to the resonant transmitter.

The eddy currents flowing within the plurality of susceptor particles 160 may generate heat by the joule effect, where the amount of heat generated is proportional to the square of the current multiplied by the resistance of the material of the plurality of susceptor particles 160. For embodiments in which the plurality of susceptor particles 160 comprise a ferromagnetic material, heat may also be generated by hysteresis losses. Several factors that contribute to the temperature increase of the plurality of susceptor particles 160 include, but are not limited to: proximity to the spiral wrap 128, distribution of the magnetic field, electrical resistivity of the material of the plurality of susceptor particles 160, saturation flux density, skin effect or depth, hysteresis loss, magnetic susceptibility, magnetic permeability, and dipole moment of the material.

In this regard and as described above, both the plurality of susceptor particles 160 and the spiral winding 128 may comprise an electrically conductive material. For example, the spiral wound element 128 and/or the plurality of susceptor particles 160 may comprise various conductive materials, including metals such as copper or aluminum, alloys of conductive materials (e.g., diamagnetic, paramagnetic or ferromagnetic materials), or other materials such as ceramics or glass in which one or more conductive materials are embedded. In some embodiments, the plurality of susceptor particles may be coated with or otherwise include a thermally conductive passivation layer (e.g., a thin layer of glass).

In some embodiments, the plurality of porous susceptor particles 160 contained in the aerosol source member 104 may be supplemented by additional/alternative resonant receivers. For example, in some embodiments, the control body 102 of the device 100 may include a separate resonant receiver, such as, for example, one or more receiver pins. Some examples of suitable components are described in U.S. patent application publication No. 15/799,365 entitled "Induction Heated Aerosol Delivery Device" filed on 31/10/2017, the entire contents of which are incorporated herein by reference.

Referring back to fig. 4, the substrate portion 110 of some embodiments may further include a cover layer 154 disposed around the peripheral portion 152. In the depicted embodiment, the cover layer 154 includes a foil sublayer 156 and a paper sublayer 158, wherein the paper sublayer 158 is disposed about the foil sublayer 156. In some embodiments, the foil sublayer and the paper sublayer may comprise a single laminate. In some embodiments, the paper sublayer may comprise paper or other fibrous materials, such as cellulosic materials. The paper sublayer material may also include at least one filler material embedded or dispersed within the fibrous material. In various embodiments, the filler material may be in the form of water-insoluble particles. Furthermore, the filler material may incorporate inorganic components. In some embodiments, the paper sub-layer may be formed from multiple layers, such as an underlying loose layer and an overlying layer such as a typical wrapper in a cigarette. Such materials may include, for example, lightweight "rag-like fibers" such as flax, hemp, sisal, straw, and/or esparto grass. In U.S. patent No. 5,105,838 to White et al; U.S. Pat. nos. 5,271,419 to Arzonico et al; U.S. patent No. 5,220,930 to Gentry; U.S. patent No. 6,908,874 to Woodhead et al; U.S. patent No. US6,929,013 to Ashcraft et al; U.S. patent No.7,195,019 to Hancock et al; U.S. patent No.7,276,120 to Holmes; U.S. patent No.7,275,548 to Hancock et al; PCT WO 01/08514 to Fournier et al; and PCT WO 03/043450 to Hajaligol et al, all of which are incorporated herein by reference in their entirety. In some embodiments, the paper material may comprise materials such as RJ raynaz Tobacco Company Grades (r.j. reynolds tobaco Company Grades)119, 170, 419, 453, 454, 456, 465, 466, 490, 525, 535, 557, 652, 664, 672, 676, and 680, commercially available from Schweitzer-madit International. In the depicted embodiment, the foil sub-layer 152 includes a metal foil material, such as an aluminum foil material. However, in other embodiments, the foil sub-layer may include other materials, including but not limited to copper materials, tin materials, gold materials, graphene materials, graphite materials, or other thermally conductive carbon-based materials, and/or any combination thereof. Although various thicknesses are possible, in some embodiments, the cover layer can have a thickness within the inclusive range of about 1mm to about 3 mm.

An alternative embodiment of the present disclosure is shown in fig. 5. In particular, fig. 5 shows a transverse cross-sectional view of a portion of a substrate portion 210 of an aerosol source member according to another exemplary embodiment of the present disclosure. In various embodiments, the aerosol source member having the substrate portion 210 of fig. 5 can be used in various control bodies, such as, for example, the control bodies of fig. 1-3 and 10. In the depicted embodiment, the substrate portion 210 of the aerosol source member comprises a plurality of layers. For example, in the depicted embodiment, the substrate portion 210 includes a first layer 235 including a core portion 250 and a second layer 245 including a peripheral portion 252. In the depicted embodiment, the first layer 235 is located at a substantially radial center of the substrate portion 210, and the second layer 245 is disposed around the first layer 235. In some embodiments, the diameter of first layer 235 is less than the overall diameter of substrate portion 210 and may be expressed as a function of the overall diameter of the substrate portion. For example, the core portion may have a diameter of about 1/8 to 3/4 in some embodiments, and about 1/4 to 1/2 in some embodiments, of the overall diameter of the substrate portion of the aerosol source member. Likewise, the diameter of the peripheral portion 152 is less than the overall diameter of the substrate portion and may be expressed as a function of the diameter of the core portion. For example, in some embodiments, the diameter of the peripheral portion may be about 1.5 to 8 times the diameter of the core portion, and in some embodiments may be about 2 to 4 times the diameter of the core portion. In one instance, the diameter of the core portion may be about 2mm and the diameter of the peripheral portion may be in the range of about 6.5mm to about 12mm inclusive.

In various embodiments, the first layer 235, including the core portion 250, may define a first susceptor particle distribution density, which may generally include a relative concentration of susceptor particles within the first layer 235. Likewise, the second layer 245, including the peripheral portion 252, may define a second susceptor particle distribution density, which may generally include a relative concentration of susceptor particles within the second layer 245. In various embodiments, the distribution density of susceptor particles can be defined in a number of different ways. For example, in some embodiments, the first distribution density may be defined as the volume of susceptor particles in the first layer as a function of the total volume of the first layer. Likewise, the second distribution density may be defined as the volume of susceptor particles in the second layer as a function of the total volume of the second layer. In other embodiments, the first distribution density may be defined as the volume of susceptor particles in the first layer as a function of the total volume of the portion of the substrate. Likewise, the second distribution density may be defined as the volume of susceptor particles in the second layer as a function of the total volume of the portion of the substrate. In other embodiments, the first distribution density may be defined as the volume of susceptor particles in the first layer as a function of the total area of the cross-section of the first layer across the substrate portion. Likewise, the second distribution density may be defined as the volume of susceptor particles in the second layer as a function of the total area of the second layer across the same cross-section of the substrate portion. In other embodiments in which the susceptor particles have substantially the same size or fall within the same particle size range, the first distribution density may be defined as the number of susceptor particles in the first layer as a function of the volume of the first layer. Likewise, the second distribution density may be defined as the number of susceptor particles in the second layer as a function of the volume of the second layer.

Regardless of how the distribution density is calculated, the present invention provides that the first distribution density (distribution density of susceptor particles in a first layer including the core portion) is greater than the second distribution density (distribution density of susceptor particles in a second layer including the surrounding portion). In this way, the concentration of susceptor particles in the core portion is higher than the concentration of susceptor particles in the surrounding portion. It should be noted that in the depicted embodiment, susceptor particles 260 of first layer 235 and susceptor particles 262 of second layer 245 comprise substantially the same type of particles (e.g., substantially the same material); however, in other embodiments, the type of susceptor particles of the first layer may be different from the type of susceptor particles of the second layer. In still other embodiments, the first layer may include a plurality of susceptor particles, but the second layer need not include a plurality of susceptor particles. In one embodiment, for example, the volume of susceptor particles in the first layer may be in a range between inclusive of about 4% and about 8% of the total volume of the substrate portion (including or not including the cover portion), and the volume of susceptor particles in the second layer may be in a range between 0% and less than 4% of the total volume of the substrate portion (including or not including the cover portion).

In the depicted embodiment, the first layer 235 and/or the second layer 245 can include a substrate material. In some embodiments, the substrate material may comprise an extruded tobacco structure. For example, in some embodiments, the extruded structure may include or may consist essentially of tobacco, tobacco-related materials, glycerin, water, binder materials and/or fillers and curing agents, such as, for example, one or more of calcium carbonate, rice flour, corn flour, and the like. In various embodiments, suitable binder materials may include alginates, such as ammonium alginate, propylene glycol alginate, potassium alginate, and sodium alginate. Alginates, particularly high viscosity alginates, can be used in conjunction with controlled levels of free calcium ions. Other suitable binder materials include hydroxypropyl cellulose, such as Klucel H from argylon corporation; hydroxypropyl methylcellulose, such as Methocel K4MS from the dow chemical company; hydroxyethyl cellulose, such as Natrosol 250MRCS from argron corporation; microcrystalline cellulose, such as Avicel from FMC corporation; methylcellulose, such as Methocel A4M from the dow chemical company; sodium carboxymethylcellulose, such as CMC 7HF and CMC 7H4F from hegmas corporation (Hercules Inc). Still other possible binder materials include starch (e.g., corn starch), guar gum, carrageenan, locust bean gum, pectin, and xanthan gum. In some embodiments, a combination or mixture of two or more binder materials may be employed. Other examples of adhesive materials are described, for example, in U.S. patent No. 5,101,839 to Jakob et al and U.S. patent No. 4,924,887 to Raker et al, each of which is incorporated herein by reference in its entirety. In some embodiments, the aerosol-forming material may be provided as part of a binder material (e.g., propylene glycol alginate). Further, in some embodiments, the binder material may include nanocellulose or other biomass derived from tobacco.

In some embodiments, the substrate material may comprise an extruded material, as described in U.S. patent application publication No. 2012/0042885 to Stone et al, which is incorporated herein by reference in its entirety. In yet another embodiment, the substrate material may comprise an extruded structure and/or substrate formed from pelletized tobacco and/or non-pelletized tobacco. Pelletized tobacco is known, for example, from U.S. patent No. 5,105,831 to Banerjee et al, which is incorporated herein by reference in its entirety. Pelletized tobacco comprises about 20% to about 50% by weight of the tobacco mixture in powder form, glycerin (about 20% to about 30% by weight), calcium carbonate (typically about 10% to about 60% by weight, typically about 40% to about 60% by weight), and a binder and/or flavoring agent as described herein. In various embodiments, the extruded material may have one or more longitudinal openings. In other embodiments, the extruded material may have two or more regions, for example, an extrudate with a wagon wheel cross-section.

Additionally or alternatively, the substrate material may comprise, or consist essentially of, an extruded structure and/or substrate comprising or consisting of tobacco, glycerine, water and/or binder material, and further configured to substantially maintain its structure throughout the aerosol-generating process. That is, the substrate material may be configured to substantially maintain its shape (i.e., the substrate material does not continuously deform under an applied shear stress) throughout the aerosol-generating process. While such exemplary substrate materials may include liquid and/or some moisture content, the substrate material may remain substantially solid throughout the aerosol-generating process and may substantially maintain structural integrity throughout the aerosol-generating process. In U.S. patent application publication No. 2015/0157052 to Ademe et al; U.S. patent application publication No. 2015/0335070 to Sears et al; U.S. patent No. 6,204,287 to White; and U.S. patent No. 5,060,676 to heart et al, which is incorporated herein by reference in its entirety, describe exemplary tobacco and/or tobacco-related materials suitable for use as substantially solid substrate materials.

In other embodiments, the substrate material may include a flavored and aromatic tobacco mixture in the form of cut filler. In another embodiment, the substrate material may comprise reconstituted tobacco material, such as described in U.S. patent No. 4,807,809 to Pryor et al; U.S. patent nos. 4,889,143 to Pryor et al and 5,025,814 to Raker, which are incorporated herein by reference in their entirety. Further, the reconstituted tobacco material may include reconstituted tobacco paper for cigarette types as described in r.j. reynolds tobacco company monograph (1988) chemical and biological research on heated novel cigarette prototypes replacing tobacco, the entire contents of which are incorporated herein by reference. For example, the reconstituted tobacco material may comprise a sheet material comprising tobacco and/or tobacco-related material. Thus, in some embodiments, the substrate material may be formed from a roll of reconstituted tobacco material. In another embodiment, the substrate material may be formed from shreds, strips, and/or the like of reconstituted tobacco material. In another embodiment, the tobacco sheet may comprise a crimped sheet of reconstituted tobacco material. In some embodiments, the substrate material may include superposed layers (e.g., gathered webs) that may or may not include a thermally conductive component. An example of a Substrate material comprising a series of overlapping layers (e.g., an aggregated web) of an initial Substrate sheet formed from a fibrous filler material, an Aerosol-forming material, and a plurality of thermally conductive components is described in U.S. patent application publication No. 15/905320 entitled "Heat coupling Substrate For Electrically Heated Aerosol Delivery Device," filed on 26.2.2018, incorporated herein by reference in its entirety.

In some embodiments, the substrate material may include a plurality of microcapsules, beads, granules, and/or the like having a material associated with tobacco. For example, representative microcapsules can be generally spherical in shape and can have an outer cover or shell containing a liquid center region of tobacco-derived extract and/or the like. In some embodiments, the substrate material may comprise a plurality of microcapsules, each microcapsule being formed in a hollow cylindrical shape. In some embodiments, the substrate material may comprise a binder material configured to maintain the structural shape and/or integrity of the plurality of microcapsules formed in the hollow cylindrical shape.

The tobacco used in one or more of the substrate materials may include or be derived from tobacco such as flue-cured, burley, Oriental (Oriental), Maryland, dark flue-cured and orchid (Rustica) tobaccos, as well as other exotic or specialty tobaccos, or mixtures thereof. In U.S. patent No. 4,836,224 to Lawson et al; U.S. patent No. 4,924,888 to perfect et al; U.S. patent No. 5,056,537 to Brown et al; U.S. patent No. 5,159,942 to Brinkley et al; U.S. patent No. 5,220,930 to Gentry; U.S. patent No. 5,360,023 to Blakley et al; U.S. patent No. 6,701,936 to Shafer et al; U.S. patent No. 6,730,832 to Dominguez et al; U.S. patent No.7,011,096 to Li et al; U.S. patent No.7,017,585 to Li et al; U.S. patent No.7,025,066 to Lawson et al; U.S. patent application publication No. 2004/0255965 to perfect et al; various representative tobacco types, processed tobacco types, and types of tobacco blends are set forth in Bereman's PCT publication No. WO 02/37990 and Bombick et al, Foundation application, journal of toxicology 39, pages 11-17 (1997); the entire disclosure of the above documents is incorporated herein by reference.

In various embodiments, the substrate material may have a variety of configurations based on the various materials used therein. For example, the sample substrate material can include up to about 98% by weight, up to about 95% by weight, or up to about 90% by weight of tobacco and/or tobacco-related material. The sample substrate material can also include up to about 25%, about 20%, or about 15% by weight water, specifically about 2% to about 25%, about 5% to about 20%, or about 7% to about 15% by weight water. Flavorants and the like (including, for example, drugs such as nicotine) can comprise up to about 10%, up to about 8%, or up to about 5% by weight of the aerosol delivery member.

In some embodiments, flame retardant/flame retardant materials and other additives may be included in the substrate material, and may include organophosphorus compounds, borax, hydrated alumina, graphite, potassium tripolyphosphate, dipentaerythritol, pentaerythritol, and polyols. Other agents such as nitrite phosphonates, monoammonium phosphates, ammonium polyphosphates, ammonium bromides, ammonium borates, ethanolammonium borates, ammonium sulfamates, halogenated organic compounds, thioureas, and antimony oxides are suitable, but not preferred. In various aspects of flame retardant, burn and/or char inhibiting materials used in substrate materials and/or other components, whether used alone or in combination with each other and/or other materials, it is most preferred to provide the desired properties without undesirable outgassing or melting-type behavior. Other examples include diammonium phosphate and/or other salts configured to help prevent ignition, pyrolysis, combustion, and/or charring of the substrate material by the heat source. In U.S. patent No. 4,947,874 to Brooks et al; U.S. patent No.7,647,932 to Cantrell et al; U.S. patent No. 8,079,371 to Robinson et al; U.S. patent No.7,290,549 to Banerjee et al; and Crooks et al, U.S. patent application publication No. 2007/0215167, which proposes various ways and methods of incorporating tobacco into smoking articles, particularly smoking articles designed to not intentionally burn nearly all of the tobacco in those smoking articles; the entire disclosure of the above documents is incorporated herein by reference.

According to other embodiments of the present disclosure, the substrate material may also incorporate tobacco additives of the type conventionally used in the manufacture of tobacco products. These additives may include types of materials used to enhance the flavor and aroma of tobacco used in the production of cigars, cigarettes, pipes, and the like. For example, these additives may include various cigarette casing and/or dressing components. See, for example, U.S. patent No. 3419015 to Wochnowski; U.S. patent No. 4054145 to Berndt et al; U.S. patent No. 4887619 to Burcham et al; U.S. patent No. 5022416 to Watson; U.S. patent No. 5103842 to Strang et al and U.S. patent No. 5711320 to Martin; the disclosure of which is incorporated herein by reference in its entirety. Preferred shell materials may include water, sugar and syrups (e.g., sucrose, glucose and high fructose corn syrup), humectants (e.g., glycerin or propylene glycol) and flavorants (e.g., cocoa and licorice). Those additional components may also include a topical material (e.g., a flavoring agent, such as menthol). See, for example, U.S. patent No. 4,449,541 to Mays et al, the disclosure of which is incorporated herein by reference in its entirety. Additional materials that may be added include those disclosed in U.S. patent No. 4,830,028 to Lawson et al and U.S. patent No. 8,186,360 to Marshall et al, the disclosures of which are incorporated herein by reference in their entirety.

Various types of flavourants or materials that alter the sensory or organoleptic properties or properties of the mainstream aerosol of a smoking article are suitable for use. In some embodiments, such flavoring agents may be provided from sources other than tobacco, and may be natural or artificial. For example, some flavourants may be applied or incorporated into the substrate material and/or those regions of the smoking article where aerosol is generated. In some embodiments, such formulations may be supplied directly to a heating chamber or region proximate a heat source, or provided with a substrate material. Exemplary flavoring agents may include, for example, vanillin, ethyl vanillin, cheese, tea, coffee, fruit (e.g., apple, cherry, strawberry, peach and citrus-flavored, including lime and lemon), maple, menthol, peppermint, spearmint, wintergreen, nutmeg, clove, lavender, cardamom, ginger, honey, anise, sage, cinnamon, sandalwood, jasmine, acerola, cocoa, licorice; and flavors and flavor packs of the type and character traditionally used as flavors for cigarettes, cigars and pipe tobacco. Syrups such as high fructose corn syrup may also be suitable for use.

Flavoring agents may also include acidic or basic characteristics (e.g., organic acids such as levulinic acid, succinic acid, pyruvic acid, and benzoic acid). In some embodiments, the flavoring agent may be combined with elements of the base material, if desired. Suitable exemplary plant-derived compositions are disclosed in U.S. patent No. 9,107,453 to Dube et al and U.S. patent application publication No. 2012/0152265, the disclosures of which are incorporated herein by reference in their entirety. Any material such as flavors, casings, etc., that can be used in conjunction with a tobacco material to affect its sensory characteristics, including organoleptic properties, can be combined with the substrate material. In particular, organic acids can be incorporated into the substrate material to affect the flavor, feel, or sensory characteristics of a drug, such as nicotine, that can be incorporated with the substrate material. For example, organic acids such as levulinic, lactic and pyruvic acids may be included in the tobacco substrate together with nicotine, and any combination of organic acids in amounts equimolar to nicotine (based on total organic acid content) is suitable. For example, in some embodiments, the substrate material can include about 0.1 to about 0.5 moles of levulinic acid per mole of nicotine, about 0.1 to about 0.5 moles of pyruvic acid per mole of nicotine, about 0.1 to about 0.5 moles of lactic acid per mole of nicotine, or a combination thereof, until a concentration is reached where the total amount of organic acids present is equimolar to the total amount of nicotine present in the substrate material. Various other examples of organic acids that can be used to produce the substrate material are disclosed in U.S. patent application publication No. 2015/0344456 to Dull et al, which is incorporated herein by reference in its entirety.

The selection of these additional components may be variable based on factors such as the desired organoleptic properties of the smoking article, and the present disclosure is intended to encompass any such additional components that would be apparent to one skilled in the art of tobacco and tobacco-related or tobacco-derived products. See "Tobacco Flavoring Substances and Methods" by Gutcho of Noyes Data Corp. (Noyes Data Corp.) (1972) and "Tobacco Flavoring for Smoking Products" by Leffingwell et al (1972), the disclosures of which are incorporated herein by reference in their entirety.

In some embodiments, the substrate material may include other materials having various inherent characteristics or properties. For example, the substrate material may comprise a plasticized material in the form of rayon or regenerated cellulose. As another example, viscose (e.g., commercially available) Suitably, the viscose is a regenerated cellulose product incorporating silica. Some carbon fibers may include at least 95% or more carbon. Similarly, natural cellulosic fibers such as cotton are suitable and may be impregnated with or otherwise treated with silica, carbon or metal particles to enhance flame retardant performance and minimize off-gassing, especially any undesirable off-gassing components that adversely affect flavor (especially minimizing the potential for any toxic off-gassing products). The cotton may be treated with, for example, boric acid or various organophosphate compounds to provide the desired flame retardant properties by dip coating, spray coating, or other techniques known in the art. These fibers may also be treated with organic or metallic nanoparticles (coating, impregnation, or both by dipping, spraying, or vapor deposition) to impart the desired flame retardancy without undesirable exhaust emissions or melt-type behavior.

In the depicted embodiment, the first layer and/or the second layer may also include an aerosol-forming material, such as an aerosol precursor composition. In some embodiments, the aerosol precursor composition may comprise one or more humectants, such as propylene glycol, glycerin, and/or the like. In various embodiments, the amount of aerosol precursor composition used within the aerosol delivery device can be such that the aerosol delivery device exhibits acceptable sensory and organoleptic properties as well as desirable performance properties. For example, in some embodiments, aerosol precursor compositions (such as, for example, glycerol and/or propylene glycol) can be used to generate a visible aerosol that resembles the mainstream of tobacco smoke morphology in many respects. For example, the amount of aerosol precursor composition incorporated into the substrate material of a smoking article can be in the range of about 4.5 grams or less, 3.5 grams or less, about 3 grams or less, about 2.5 grams or less, about 2 grams or less, about 1.5 grams or less, about 1 gram or less, or about 5 grams, however, it should be noted that in other embodiments, values outside of these ranges are possible.

In U.S. patent No. 4,793,365 to Sensabaugh, jr. et al; U.S. patent No. 5,101,839 to Jacob et al; PCT WO 98/57556 to Biggs et al; representative types of other aerosol precursor compositions are set forth in R.J. Reynolds Tobacco monograph, Chemical and Biological students on New Cigarette Heat institute of Burn Tobacco (1988); the above disclosure is incorporated herein by reference. In some aspects, the aerosol source member may produce a visible aerosol (and if desired air cooled) upon application of sufficient heat thereto, and the aerosol source member may produce a "smoke-like" aerosol. In other aspects, the aerosol source member may produce an aerosol that is substantially invisible, but identified as present by other characteristics such as flavor or mouthfeel. Thus, the properties of the aerosol produced may vary depending on the particular components of the aerosol delivery member. In various embodiments, the aerosol source member may be chemically simple relative to the chemical nature of the smoke produced by burning tobacco.

In some embodiments, aerosol precursor compositions, also referred to as aerosol precursor compositionsA vapor precursor composition or "electronic liquid" which may comprise a variety of components including, for example, a polyol (e.g., glycerol, propylene glycol, or mixtures thereof), nicotine, tobacco extract, and/or flavorants. In U.S. patent No.7,217,320 to Robinson et al, U.S. patent publication No. 2013/0008457 to Zheng et al; U.S. patent publication No. 2013/0213417 to Chong et al; collett et al, U.S. patent publication No. 2014/0060554; lipowicz et al, U.S. patent publication No. 2015/0030823; and Koller, U.S. patent publication No. 2015/0020830, and WO 2014/182736 to Bowen et al, the contents of which are incorporated herein by reference in their entirety, describe and characterize some possible types of aerosol precursor components and compositions. Other aerosol precursors that may be employed include those already included in the following products: R.J. Reynolds Vapor companyProducing a product; BLUTM product of Fontem vents B.V.; MISTIC MEDIHOL product from Mistic Ecigs; MARK TEN product of Luma corporation (Nu Mark LLC); JuUL Labs JUUL product; and the product of VYPE from CN Creative Co. It is also possible that so-called "juice" for electronic cigarettes is already available from Johnson Creek Enterprises LLC. Further possible exemplary aerosol precursor compositions are sold under the trade names: BLACK NOTE, COSMIC FOG, MILKMAN E-LIQUID, FIVE PAWNS, VAPOR CHEF, VAPE WILD, BOOSTED, THEE STEAM FACTORY, MECH SAUCE, CASEY JONES MAINLINE RESERVE, DR.CRIMY' S V-LIQUID, SMILEY LIQUID, BEANOWN VAPOR, CUTWOOD, CYCLOPS VAPOR, SICARBOY, GOOD LIFE VAPOR, TELEOS, PINUP VAPOR, SPACE JAM, MT.BAKER VAPOR, and JIMMY THE JUICE MAN.

The amount of aerosol precursor incorporated within the aerosol source member is such that the aerosol generating member provides acceptable sensory and desirable performance characteristics. For example, it is desirable to use a sufficient amount of aerosol-forming material for generating a visible aerosol that resembles the mainstream of tobacco smoke in many respects. The amount of aerosol precursor within the aerosol-generating system may depend on factors such as the number of puffs desired for each aerosol-generating member. In one or more embodiments, about 0.5 ml or more, about 1 ml or more, about 2 ml or more, about 5 ml or more, or about 10 ml or more of the aerosol precursor composition can be included.

Referring back to fig. 5, as described above, the first layer 235 includes a plurality of susceptor particles 260 and the second layer 252 includes a plurality of susceptor particles 262, wherein the susceptor particles 260, 262 include resonant receptors. In various embodiments, the plurality of susceptor particles 260, 262 may have various shapes, sizes, and materials, and in some embodiments, these different shapes, sizes, and materials may be combined in the same layer. For example, in some embodiments, one or more of the plurality of susceptor particles 260, 262 may have a substantially spherical shape, a sheet-like shape, a substantially cubic shape, an irregular shape (e.g., a shape having one or more (e.g., a number of) sides with different sizes), or any combination thereof. In various embodiments, the plurality of susceptor particles 260, 262 may comprise a ferromagnetic material including, but not limited to, cobalt, iron, nickel, zinc, manganese, and any combination thereof. In additional embodiments, the plurality of susceptor particles 260, 262 may comprise other materials, including, for example, other porous metal materials such as aluminum or stainless steel, as well as ceramic materials such as silicon carbide, carbon materials, and any combination of any of the above. In yet another embodiment, the plurality of susceptor particles may comprise other conductive materials, including metals such as copper, alloys of conductive materials, or other materials in which one or more conductive materials are embedded. Although in various embodiments the size of the porous susceptor particles may vary, in some embodiments, one or more of the plurality of porous susceptor support particles may have a diameter in the inclusive range of about 100 micrometers (0.1mm) to about 2mm, and in some embodiments, one or more of the plurality of porous susceptor particles may have a diameter in the inclusive range of about 0.5mm to about 1.5 mm.

In the depicted embodiment, a change in current in a spiral winding (i.e., a resonant emitter) in the control body, as directed by the control body (e.g., via a drive circuit) from a power source to the spiral winding, may generate an alternating electromagnetic field that penetrates the plurality of susceptor particles 260, 262 (i.e., a resonant receiver), thereby generating eddy currents within the plurality of susceptor particles 260, 262. The alternating electromagnetic field may be generated by directing an alternating current to the helical winding. As described above, in some embodiments, the control means may comprise an inverter or inverter circuit configured to convert direct current provided by the power source into alternating current provided to the resonant transmitting portion.

The eddy currents flowing within the plurality of susceptor particles 260, 262 may generate heat by the joule effect, where the amount of heat generated is proportional to the square of the current multiplied by the resistance of the material of the plurality of susceptor particles 260, 262. For embodiments in which the plurality of susceptor particles 260, 262 comprise a ferromagnetic material, heat may also be generated by hysteresis losses. Several factors that cause the temperature of the plurality of susceptor particles 260, 262 to increase include, but are not limited to: proximity to the spiral winding, distribution of the magnetic field, electrical resistivity of the material of the plurality of susceptor particles 260, 262, saturation flux density, skin effect or depth, hysteresis loss, magnetic susceptibility, magnetic permeability, and dipole moment of the material.

In this regard and as described above, both the plurality of susceptor particles 260, 262 and the spiral winding may comprise an electrically conductive material. For example, the spiral wound element and/or the plurality of susceptor particles 260, 262 may comprise various conductive materials, including metals such as copper or aluminum, alloys of conductive materials (e.g., diamagnetic, paramagnetic or ferromagnetic materials), or other materials such as ceramics or glass in which one or more conductive materials are embedded. In some embodiments, the plurality of susceptor particles may be coated with or otherwise include a thermally conductive passivation layer (e.g., a thin layer of glass).

In some embodiments, the plurality of porous susceptor particles 260, 262 contained in the aerosol source member may be supplemented by additional/alternative resonant receivers. For example, in some embodiments, the control body of the device may include a separate resonant receiver, such as, for example, one or more receiver pins. Examples of suitable components are described in U.S. patent application serial No. 15/799,365, filed on 31/10/2017, which is incorporated herein by reference in its entirety.

Referring back to fig. 5, the substrate portion 210 of some embodiments may further include a cover layer 254 disposed around the peripheral portion 252. In the depicted embodiment, the cover layer 254 includes a foil sublayer 256 and a paper sublayer 258, wherein the paper sublayer 258 is disposed around the foil sublayer 256. In some embodiments, the foil sublayer and the paper sublayer may comprise a single laminate. In some embodiments, the paper sublayer may comprise paper or other fibrous materials, such as cellulosic materials. The paper sublayer material may also include at least one filler material embedded or dispersed within the fibrous material. In various embodiments, the filler material may be in the form of water-insoluble particles. Furthermore, the filler material may incorporate inorganic components. In some embodiments, the paper sub-layers may be formed from multiple layers, such as an underlying loose layer and an overlying layer such as a typical wrapper in a cigarette. Such materials may include, for example, lightweight "rag-like fibers" such as flax, hemp, sisal, straw, and/or esparto grass. In U.S. patent No. 5,105,838 to White et al; U.S. Pat. nos. 5,271,419 to Arzonico et al; U.S. patent No. 5,220,930 to Gentry; U.S. patent No. 6,908,874 to Woodhead et al; U.S. patent No. US6,929,013 to Ashcraft et al; U.S. patent No.7,195,019 to Hancock et al; U.S. patent No.7,276,120 to Holmes; U.S. patent No.7,275,548 to Hancock et al; PCT WO 01/08514 to Fournier et al; and PCT WO 03/043450 to Hajaligol et al, all of which are incorporated herein by reference in their entirety. In some embodiments, the paper material may comprise materials such as RJ raynaz Tobacco Company Grades (r.j. reynolds tobaco Company Grades)119, 170, 419, 453, 454, 456, 465, 466, 490, 525, 535, 557, 652, 664, 672, 676, and 680, commercially available from Schweitzer-madit International. In the depicted embodiment, the foil sublayer 252 comprises a metal foil material, such as an aluminum foil material. However, in other embodiments, the foil sub-layer may include other materials, including but not limited to copper materials, tin materials, gold materials, graphene materials, graphite materials, or other thermally conductive carbon-based materials, and/or any combination thereof. Although various thicknesses are possible, in some embodiments, the cover layer can have a thickness within the inclusive range of about 1mm to about 3 mm.

An alternative embodiment of the present disclosure is shown in fig. 6 and 7. In particular, fig. 6 shows a cross-sectional view of a portion of the substrate portion 310 of the aerosol source member, and fig. 7 shows a longitudinal cross-sectional view of a portion of the substrate portion 310 of the aerosol source member of fig. 6. In various embodiments, the aerosol source member having the substrate portion 310 of fig. 6 and 7 can be used in various control bodies, such as, for example, the control bodies of fig. 1-3 and 10. In the depicted embodiment, the substrate portion 310 of the aerosol-source member comprises a plurality of susceptor strips 370 (see fig. 7) extending across at least a portion of the substrate portion 310. In various embodiments, the number of susceptor strips in substrate portion 310 may vary. For example, in some embodiments, as few as two susceptor strips may be present, and in other embodiments, as many as twelve or more susceptor strips may be present. Although other configurations are possible, in the depicted embodiment, a plurality of susceptor strips 370 are spaced apart along the length of the substrate portion 310. In particular, the susceptor strips 370 of the depicted embodiment are substantially evenly spaced along the length of the substrate portion 310. In various embodiments, a plurality of susceptor particles 360 are located within each susceptor zone 370. Although other configurations are possible, in the depicted embodiment, the plurality of susceptor particles 360 are substantially aligned and substantially uniformly spaced apart within each susceptor strip 370.

In the depicted embodiment, a plurality of susceptor strips 370 extend through the center of the substrate portion 310 and across the diameter thereof, the substrate portion 310 of the depicted embodiment includes a substrate material 348, and a plurality of susceptor particles 360 are embedded or dispersed within the substrate material 348. In some embodiments, the substrate material may comprise an extruded tobacco structure. For example, in some embodiments, the extruded structure may include or may consist essentially of tobacco, tobacco-related materials, glycerin, water, binder materials and/or fillers and curing agents, such as, for example, one or more of calcium carbonate, rice flour, corn flour, and the like. In various embodiments, suitable binder materials may include alginates, such as ammonium alginate, propylene glycol alginate, potassium alginate, and sodium alginate. Alginates, particularly high viscosity alginates, can be used in conjunction with controlled levels of free calcium ions. Other suitable binder materials include hydroxypropyl cellulose, such as Klucel H from argylon corporation; hydroxypropyl methylcellulose, such as Methocel K4MS from the dow chemical company; hydroxyethyl cellulose, such as Natrosol 250MRCS from argron corporation; microcrystalline cellulose, such as Avicel from FMC corporation; methylcellulose, such as Methocel A4M from the dow chemical company; sodium carboxymethylcellulose, such as CMC 7HF and CMC 7H4F from hegmas corporation (Hercules Inc). Still other possible binder materials include starch (e.g., corn starch), guar gum, carrageenan, locust bean gum, pectin, and xanthan gum. In some embodiments, a combination or mixture of two or more binder materials may be employed. Other examples of adhesive materials are described, for example, in U.S. patent No. 5101839 to Jakob et al and U.S. patent No. 4924887 to Raker et al, each of which is incorporated herein by reference in its entirety. In some embodiments, the aerosol-forming material may be provided as part of a binder material (e.g., propylene glycol alginate). Further, in some embodiments, the binder material may include nanocellulose derived from tobacco or other biomass.

In some embodiments, the substrate material may comprise an extruded material, as described in U.S. patent application publication No. 2012/0042885 to Stone et al, which is incorporated herein by reference in its entirety. In yet another embodiment, the substrate material may comprise an extruded structure and/or substrate formed from pelletized tobacco and/or non-pelletized tobacco. Pelletized tobacco is known, for example, from U.S. patent No. 5,105,831 to Banerjee et al, which is incorporated herein by reference in its entirety. Pelletized tobacco comprises about 20% to about 50% by weight of the tobacco mixture in powder form, glycerin (about 20% to about 30% by weight), calcium carbonate (typically about 10% to about 60% by weight, typically about 40% to about 60% by weight), and a binder and/or flavoring agent as described herein. In various embodiments, the extruded material may have one or more longitudinal openings. In other embodiments, the extruded material may have two or more regions, for example, an extrudate with a wagon wheel cross-section.

Additionally or alternatively, the substrate material may comprise, or consist essentially of, an extruded structure and/or substrate comprising or consisting of tobacco, glycerine, water and/or binder material, and further configured to substantially maintain its structure throughout the aerosol-generating process. That is, the substrate material may be configured to substantially maintain its shape (i.e., the substrate material does not continuously deform under an applied shear stress) throughout the aerosol-generating process. While such exemplary substrate materials may include liquid and/or some moisture content, the substrate material may remain substantially solid throughout the aerosol-generating process and may substantially maintain structural integrity throughout the aerosol-generating process. In U.S. patent application publication No. 2015/0157052 to Ademe et al; U.S. patent application publication No. 2015/0335070 to Sears et al; U.S. patent No. 6,204,287 to White; and U.S. patent No. 5,060,676 to heart et al, which is incorporated herein by reference in its entirety, describe exemplary tobacco and/or tobacco-related materials suitable for use as substantially solid substrate materials.

In other embodiments, the substrate material may include a flavored and aromatic tobacco mixture in the form of cut filler. In another embodiment, the substrate material may comprise reconstituted tobacco material, such as described in U.S. patent No. 4,807,809 to Pryor et al; U.S. patent nos. 4,889,143 to Pryor et al and 5,025,814 to Raker, which are incorporated herein by reference in their entirety. Further, the reconstituted tobacco material may include reconstituted tobacco paper for cigarette types as described in r.j. reynolds tobacco company monograph (1988) chemical and biological research on heated novel cigarette prototypes replacing tobacco, the entire contents of which are incorporated herein by reference. For example, the reconstituted tobacco material may comprise a sheet material comprising tobacco and/or tobacco-related material. Thus, in some embodiments, the substrate material may be formed from a roll of reconstituted tobacco material. In another embodiment, the substrate material may be formed from shreds, strips, and/or the like of reconstituted tobacco material. In another embodiment, the tobacco sheet may comprise a crimped sheet of reconstituted tobacco material. In some embodiments, the substrate material may include superposed layers (e.g., gathered webs) that may or may not include a thermally conductive component. An example of a Substrate material comprising a series of overlapping layers (e.g., an aggregated web) of an initial Substrate sheet formed from a fibrous filler material, an Aerosol-forming material, and a plurality of thermally conductive components is described in U.S. patent application publication No. 15/905320 entitled "Heat coupling Substrate For Electrically Heated Aerosol Delivery Device," filed on 26.2.2018, incorporated herein by reference in its entirety.

In some embodiments, the substrate material may include a plurality of microcapsules, beads, granules, and/or the like having a material associated with tobacco. For example, representative microcapsules can be generally spherical in shape and can have an outer cover or shell containing a liquid center region of tobacco-derived extract and/or the like. In some embodiments, the substrate material may comprise a plurality of microcapsules, each microcapsule being formed in a hollow cylindrical shape. In some embodiments, the substrate material may comprise a binder material configured to maintain the structural shape and/or integrity of the plurality of microcapsules formed in the hollow cylindrical shape.

The tobacco used in one or more of the substrate materials may include or be derived from tobacco such as flue-cured, burley, oriental, maryland, dark flue-cured and orchid tobaccos, as well as other rare or specialty tobaccos, or mixtures thereof. In U.S. patent No. 4,836,224 to Lawson et al; U.S. patent No. 4,924,888 to perfect et al; U.S. patent No. 5,056,537 to Brown et al; U.S. patent No. 5,159,942 to Brinkley et al; U.S. patent No. 5,220,930 to Gentry; U.S. patent No. 5,360,023 to Blakley et al; U.S. patent No. 6,701,936 to Shafer et al; U.S. patent No. 6,730,832 to Dominguez et al; U.S. patent No.7,011,096 to Li et al; U.S. patent No.7,017,585 to Li et al; U.S. patent No.7,025,066 to Lawson et al; U.S. patent application publication No. 2004/0255965 to perfect et al; various representative tobacco types, processed tobacco types, and types of tobacco blends are set forth in Bereman's PCT publication No. WO 02/37990 and Bombick et al, Foundation application, journal of toxicology 39, pages 11-17 (1997); the entire disclosure of the above documents is incorporated herein by reference.

In various embodiments, the substrate material may have a variety of configurations based on the various materials used therein. For example, the sample substrate material can include up to about 98% by weight, up to about 95% by weight, or up to about 90% by weight of tobacco and/or tobacco-related material. The sample substrate material can also include up to about 25%, about 20%, or about 15% by weight water, specifically about 2% to about 25%, about 5% to about 20%, or about 7% to about 15% by weight water. Flavorants and the like (including, for example, drugs such as nicotine) can comprise up to about 10%, up to about 8%, or up to about 5% by weight of the aerosol delivery member.

In some embodiments, flame retardant/flame retardant materials and other additives may be included in the substrate material, and may include organophosphorus compounds, borax, hydrated alumina, graphite, potassium tripolyphosphate, dipentaerythritol, pentaerythritol, and polyols. Other agents such as nitrite phosphonates, monoammonium phosphates, ammonium polyphosphates, ammonium bromides, ammonium borates, ethanolammonium borates, ammonium sulfamates, halogenated organic compounds, thioureas, and antimony oxides are suitable, but not preferred. In various aspects of flame retardant, burn and/or char inhibiting materials used in substrate materials and/or other components, whether used alone or in combination with each other and/or other materials, it is most preferred to provide the desired properties without undesirable outgassing or melting-type behavior. Other examples include diammonium phosphate and/or other salts configured to help prevent ignition, pyrolysis, combustion, and/or charring of the substrate material by the heat source. In U.S. patent No. 4,947,874 to Brooks et al; U.S. patent No.7,647,932 to Cantrell et al; U.S. patent No. 8,079,371 to Robinson et al; U.S. patent No.7,290,549 to Banerjee et al; and Crooks et al, U.S. patent application publication No. 2007/0215167, which proposes various ways and methods of incorporating tobacco into smoking articles, particularly smoking articles designed to not intentionally burn nearly all of the tobacco in those smoking articles; the entire disclosure of the above documents is incorporated herein by reference.

According to other embodiments of the present disclosure, the substrate material may also incorporate tobacco additives of the type conventionally used in the manufacture of tobacco products. These additives may include types of materials used to enhance the flavor and aroma of tobacco used in the production of cigars, cigarettes, pipes, and the like. For example, these additives may include various cigarette casing and/or dressing components. See, for example, U.S. patent No. 3,419,015 to Wochnowski; U.S. patent No. 4,054,145 to Berndt et al; U.S. patent No. 4,887,619 to Burcham et al; U.S. patent No. 5,022,416 to Watson; U.S. patent nos. 5,103,842 to Strang et al and 5,711,320 to Martin; the disclosure of which is incorporated herein by reference in its entirety. Preferred shell materials may include water, sugar and syrups (e.g., sucrose, glucose and high fructose corn syrup), humectants (e.g., glycerin or propylene glycol) and flavorants (e.g., cocoa and licorice). Those additional components may also include a topical material (e.g., a flavoring agent, such as menthol). See, for example, U.S. patent No. 4,449,541 to Mays et al, the disclosure of which is incorporated herein by reference in its entirety. Additional materials that may be added include those disclosed in U.S. patent No. 4,830,028 to Lawson et al and U.S. patent No. 8,186,360 to Marshall et al, the disclosures of which are incorporated herein by reference in their entirety.

Various types of flavourants or materials that alter the sensory or organoleptic properties or properties of the mainstream aerosol of a smoking article are suitable for use. In some embodiments, such flavoring agents may be provided from sources other than tobacco, and may be natural or artificial. For example, some flavourants may be applied or incorporated into the substrate material and/or those regions of the smoking article where aerosol is generated. In some embodiments, such formulations may be supplied directly to a heating chamber or region proximate a heat source, or provided with a substrate material. Exemplary flavoring agents may include, for example, vanillin, ethyl vanillin, cheese, tea, coffee, fruit (e.g., apple, cherry, strawberry, peach and citrus-flavored, including lime and lemon), maple, menthol, peppermint, spearmint, wintergreen, nutmeg, clove, lavender, cardamom, ginger, honey, anise, sage, cinnamon, sandalwood, jasmine, acerola, cocoa, licorice; and flavors and flavor packs of the type and character traditionally used as flavors for cigarettes, cigars and pipe tobacco. Syrups such as high fructose corn syrup may also be suitable for use.

Flavoring agents may also include acidic or basic characteristics (e.g., organic acids such as levulinic acid, succinic acid, pyruvic acid, and benzoic acid). In some embodiments, the flavoring agent may be combined with elements of the base material, if desired. Suitable exemplary plant-derived compositions are disclosed in U.S. patent No. 9,107,453 to Dube et al and U.S. patent application publication No. 2012/0152265, the disclosures of which are incorporated herein by reference in their entirety. Any material such as flavors, casings, etc., that can be used in conjunction with a tobacco material to affect its sensory characteristics, including organoleptic properties, can be combined with the substrate material. In particular, organic acids can be incorporated into the substrate material to affect the flavor, feel, or sensory characteristics of a drug, such as nicotine, that can be incorporated with the substrate material. For example, organic acids such as levulinic, lactic and pyruvic acids may be included in the tobacco substrate together with nicotine, and any combination of organic acids in amounts equimolar to nicotine (based on total organic acid content) is suitable. For example, in some embodiments, the substrate material can include about 0.1 to about 0.5 moles of levulinic acid per mole of nicotine, about 0.1 to about 0.5 moles of pyruvic acid per mole of nicotine, about 0.1 to about 0.5 moles of lactic acid per mole of nicotine, or a combination thereof, until a concentration is reached where the total amount of organic acids present is equimolar to the total amount of nicotine present in the substrate material. Various other examples of organic acids that can be used to produce the substrate material are disclosed in U.S. patent application publication No. 2015/0344456 to Dull et al, which is incorporated herein by reference in its entirety.

The selection of these additional components may be variable based on factors such as the desired organoleptic properties of the smoking article, and the present disclosure is intended to encompass any such additional components that would be apparent to one skilled in the art of tobacco and tobacco-related or tobacco-derived products. See "Tobacco Flavoring Substances and Methods" by Gutcho of Noyes Data Corp. (Noyes Data Corp.) (1972) and "Tobacco Flavoring for Smoking Products" by Leffingwell et al (1972), the disclosures of which are incorporated herein by reference in their entirety.

In some embodiments, the substrate material may include other materials having various inherent characteristics or properties. For example, the substrate material may comprise a plasticized material in the form of rayon or regenerated cellulose. As another example, viscose (e.g., commercially available) Suitably, the viscose is a regenerated cellulose product incorporating silica. Some carbon fibers may include at least 95% or more carbon. Similarly, natural cellulose fibers such as cotton are suitable and may be impregnated with silica, carbon or metal particles or withOther ways are to treat with silica, carbon or metal particles to enhance flame retardant properties and minimize exhaust emissions, especially any undesirable exhaust components that adversely affect flavor (especially to minimize the possibility of any toxic exhaust products). The cotton may be treated with, for example, boric acid or various organophosphate compounds to provide the desired flame retardant properties by dip coating, spray coating, or other techniques known in the art. These fibers may also be treated with organic or metallic nanoparticles (coating, impregnation, or both by dipping, spraying, or vapor deposition) to impart the desired flame retardancy without undesirable exhaust emissions or melt-type behavior.

In the depicted embodiment, the substrate material may also include an aerosol-forming material, such as an aerosol precursor composition. In some embodiments, the aerosol precursor composition may comprise one or more humectants, such as propylene glycol, glycerin, and/or the like. In various embodiments, the amount of aerosol precursor composition used within the aerosol delivery device can be such that the aerosol delivery device exhibits acceptable sensory and organoleptic properties as well as desirable performance properties. For example, in some embodiments, aerosol precursor compositions (such as, for example, glycerol and/or propylene glycol) can be used to generate a visible aerosol that resembles the mainstream of tobacco smoke morphology in many respects. For example, the amount of aerosol precursor composition incorporated into the substrate material of a smoking article can be in the range of about 4.5 grams or less, 3.5 grams or less, about 3 grams or less, about 2.5 grams or less, about 2 grams or less, about 1.5 grams or less, about 1 gram or less, or about 5 grams, however, it should be noted that in other embodiments, values outside of these ranges are possible.

In U.S. patent No. 4,793,365 to Sensabaugh, jr. et al; U.S. patent No. 5,101,839 to Jacob et al; PCT WO 98/57556 to Biggs et al; representative types of other aerosol precursor compositions are set forth in R.J. Reynolds Tobacco monograph, Chemical and Biological students on New Cigarette Heat institute of Burn Tobacco (1988); the above disclosure is incorporated herein by reference. In some aspects, the aerosol source member may produce a visible aerosol (and if desired air cooled) upon application of sufficient heat thereto, and the aerosol source member may produce a "smoke-like" aerosol. In other aspects, the aerosol source member may produce an aerosol that is substantially invisible, but identified as present by other characteristics such as flavor or mouthfeel. Thus, the properties of the aerosol produced may vary depending on the particular components of the aerosol delivery member. In various embodiments, the aerosol source member may be chemically simple relative to the chemical nature of the smoke produced by burning tobacco.

In some embodiments, an aerosol precursor composition, also referred to as a vapor precursor composition or an "electronic liquid," can comprise a variety of components including, for example, a polyol (e.g., glycerol, propylene glycol, or mixtures thereof), nicotine, tobacco extract, and/or flavorants. In U.S. patent No.7,217,320 to Robinson et al, U.S. patent publication No. 2013/0008457 to Zheng et al; U.S. patent publication No. 2013/0213417 to Chong et al; collett et al, U.S. patent publication No. 2014/0060554; lipowicz et al, U.S. patent publication No. 2015/0030823; and Koller, U.S. patent publication No. 2015/0020830, and WO 2014/182736 to Bowen et al, the contents of which are incorporated herein by reference in their entirety, describe and characterize some possible types of aerosol precursor components and compositions. Other aerosol precursors that may be employed include those already included in the following products: R.J. Reynolds Vapor companyProducing a product; BLUTM product of Fontem vents B.V.; MISTIC MEDIHOL product from Mistic Ecigs; MARK TEN product of Luma corporation (Nu Mark LLC); JuUL Labs JUUL product; and the product of VYPE from CN Creative Co. It is also possible that so-called "juice" for electronic cigarettes is already available from Johnson Creek Enterprises LLC. In addition canExemplary aerosol precursor compositions of properties are sold under the trade names: BLACK NOTE, COSMIC FOG, MILKMAN E-LIQUID, FIVE PAWNS, VAPOR CHEF, VAPE WILD, BOOSTED, THEE STEAM FACTORY, MECH SAUCE, CASEY JONES MAINLINE RESERVE, DR.CRIMY' S V-LIQUID, SMILEY LIQUID, BEANOWN VAPOR, CUTWOOD, CYCLOPS VAPOR, SICARBOY, GOOD LIFE VAPOR, TELEOS, PINUP VAPOR, SPACE JAM, MT.BAKER VAPOR, and JIMMY THE JUICE MAN.

The amount of aerosol precursor incorporated within the aerosol source member is such that the aerosol generating member provides acceptable sensory and desirable performance characteristics. For example, it is desirable to use a sufficient amount of aerosol-forming material for generating a visible aerosol that resembles the mainstream of tobacco smoke in many respects. The amount of aerosol precursor within the aerosol-generating system may depend on factors such as the number of puffs desired for each aerosol-generating member. In one or more embodiments, about 0.5 ml or more, about 1 ml or more, about 2 ml or more, about 5 ml or more, or about 10 ml or more of the aerosol precursor composition can be included.

Referring back to fig. 6 and 7, as described above, the substrate portion 310 comprises a plurality of susceptor strips 370, each susceptor strip comprising a plurality of susceptor particles 360, wherein the susceptor particles 360 comprise resonant receptors. In various embodiments, the plurality of susceptor particles 360 may have various shapes, sizes, and materials, and in some embodiments, these different shapes, sizes, and materials may be combined in the same susceptor strip. For example, in some embodiments, one or more of the plurality of susceptor particles 360 can have a substantially spherical shape, a sheet-like shape, a substantially cubic shape, an irregular shape (e.g., a shape having one or more (e.g., a number of) sides having different sizes), or any combination thereof. In various embodiments, the plurality of susceptor particles 360 may comprise a ferromagnetic material including, but not limited to, cobalt, iron, nickel, zinc, manganese, and any combination thereof. In additional embodiments, the plurality of susceptor particles 360 may comprise other materials, including, for example, other porous metal materials such as aluminum or stainless steel, as well as ceramic materials such as silicon carbide, carbon materials, and any combination of any of the above. In yet another embodiment, the plurality of susceptor particles may comprise other conductive materials, including metals such as copper, alloys of conductive materials, or other materials in which one or more conductive materials are embedded. Although in various embodiments the size of the porous susceptor particles may vary, in some embodiments, one or more of the plurality of porous susceptor support particles may have a diameter in the inclusive range of about 100 micrometers (0.1mm) to about 2mm, and in some embodiments, one or more of the plurality of porous susceptor particles may have a diameter in the inclusive range of about 0.5mm to about 1.5 mm.

In the depicted embodiment, a change in current in a spiral winding (i.e., a resonant emitter) in the control body, as directed by the control body (e.g., via a drive circuit) from a power source to the spiral winding, may generate an alternating electromagnetic field that penetrates the plurality of susceptor particles 360 (i.e., a resonant receiver), thereby generating eddy currents within the plurality of susceptor particles 360. The alternating electromagnetic field may be generated by directing an alternating current to the helical winding. As described above, in some embodiments, the control means may comprise an inverter or inverter circuit configured to convert direct current provided by the power source into alternating current provided to the resonant transmitting portion.

The electric eddy currents flowing within the plurality of susceptor particles 360 may generate heat by the joule effect, wherein the amount of heat generated is proportional to the square of the electric current multiplied by the resistance of the material of the plurality of susceptor particles 360. For embodiments in which the plurality of susceptor particles 360 comprise a ferromagnetic material, heat may also be generated by hysteresis losses. Several factors that contribute to the temperature increase of the plurality of susceptor particles 360 include, but are not limited to: proximity to the spiral winding, distribution of the magnetic field, electrical resistivity of the material of the plurality of susceptor particles 360, saturation flux density, skin effect or depth, hysteresis loss, magnetic susceptibility, magnetic permeability, and dipole moment of the material.

In this regard and as described above, both the plurality of susceptor particles 360 and the spiral winding may comprise an electrically conductive material. For example, the spiral wrap and/or the plurality of susceptor particles 360 may comprise various conductive materials, including metals such as copper or aluminum, alloys of conductive materials (e.g., diamagnetic, paramagnetic or ferromagnetic materials), or other materials such as ceramics or glass in which one or more conductive materials are embedded. In some embodiments, the plurality of susceptor particles may be coated with or otherwise include a thermally conductive passivation layer (e.g., a thin layer of glass).

In some embodiments, the plurality of porous susceptor particles 360 contained in the aerosol source member may be supplemented by additional/alternative resonant receivers. For example, in some embodiments, the control body of the device may include a separate resonant receiver, such as, for example, one or more receiver pins. Examples of suitable components are described in U.S. patent application serial No. 15/799,365, filed on 31/10/2017, which is incorporated herein by reference in its entirety.

Referring back to fig. 6 and 7, the substrate portion 310 of some embodiments may further include a cover layer 354 disposed about the substrate material 348. In the depicted embodiment, the cover layer 354 includes a foil sublayer 356 and a paper sublayer 358, wherein the paper sublayer 358 is disposed around the foil sublayer 356. In some embodiments, the foil sublayer and the paper sublayer may comprise a single laminate. In some embodiments, the paper sublayer may comprise paper or other fibrous materials, such as cellulosic materials. The paper sublayer material may also include at least one filler material embedded or dispersed within the fibrous material. In various embodiments, the filler material may be in the form of water-insoluble particles. Furthermore, the filler material may incorporate inorganic components. In some embodiments, the paper sub-layers may be formed from multiple layers, such as an underlying loose layer and an overlying layer such as a typical wrapper in a cigarette. Such materials may include, for example, lightweight "rag-like fibers" such as flax, hemp, sisal, straw, and/or esparto grass. In U.S. patent No. 5,105,838 to White et al; U.S. Pat. nos. 5,271,419 to Arzonico et al; U.S. patent No. 5,220,930 to Gentry; U.S. patent No. 6,908,874 to Woodhead et al; U.S. patent No. US6,929,013 to Ashcraft et al; U.S. patent No.7,195,019 to Hancock et al; U.S. patent No.7,276,120 to Holmes; U.S. patent No.7,275,548 to Hancock et al; PCT WO 01/08514 to Fournier et al; and PCT WO 03/043450 to Hajaligol et al, all of which are incorporated herein by reference in their entirety. In some embodiments, the paper material may comprise materials such as RJ raynaz Tobacco Company Grades (r.j. reynolds tobaco Company Grades)119, 170, 419, 453, 454, 456, 465, 466, 490, 525, 535, 557, 652, 664, 672, 676, and 680, commercially available from Schweitzer-madit International. In the depicted embodiment, the foil sub-layer 352 includes a metal foil material, such as an aluminum foil material. However, in other embodiments, the foil sub-layer may include other materials, including but not limited to copper materials, tin materials, gold materials, graphene materials, graphite materials, or other thermally conductive carbon-based materials, and/or any combination thereof. Although various thicknesses are possible, in some embodiments, the cover layer can have a thickness within the inclusive range of about 1mm to about 3 mm.

An alternative embodiment of the present disclosure is shown in fig. 8 and 9. In particular, fig. 8 shows a perspective view of a part of the substrate part 410 of the aerosol source member, and fig. 9 shows a transverse cross-sectional view of a part of the substrate part 410 of the aerosol source member of fig. 8. In various embodiments, the aerosol source member having the substrate portion 410 of fig. 8 and 9 can be used in various control bodies, such as, for example, the control bodies of fig. 1-3 and 10. In the depicted embodiment, the longitudinal axis 450 is defined through the substrate portion 410, and the substrate portion 410 includes a plurality of susceptor strips 470 extending through at least a portion of the substrate portion 410 (see fig. 8). In various embodiments, the number of susceptor strips in substrate portion 410 may vary. For example, in some embodiments, as few as two susceptor strips may be present, and in other embodiments, as many as twelve or more susceptor strips may be present. Although other configurations are possible, in the depicted embodiment, a plurality of susceptor strips 470 are spaced along the length of the substrate portion 410. In particular, the susceptor strips 470 of the depicted embodiment are substantially evenly spaced along the length of the substrate portion 410. In various embodiments, a plurality of susceptor coils 472 are positioned within each susceptor strip 470. Although other configurations are possible, in the depicted embodiment, a plurality of susceptor wraps 472 are radially spaced about the longitudinal axis 450 of the substrate portion 410. In various embodiments, the plurality of susceptor coils 472 may be located at any radial position within the substrate portion 410. For example, in some embodiments, a plurality of susceptor windings may be located near the longitudinal axis 450 of the substrate portion 410. In other embodiments, a plurality of susceptor wraps may be located near the outer surface of the substrate portion 410. In still other embodiments, a plurality of susceptor wraps may be located at or on the outer surface of the substrate portion 410. In various embodiments, any number of susceptor coils may be present within each susceptor belt. For example, in some embodiments, there may be as few as two susceptor coils in each susceptor strip. In other embodiments, as many as twelve or more susceptor coils may be present in each susceptor strip. Referring to fig. 9, in the depicted embodiment, there are eight susceptor coils 472 in each susceptor strip 470.

Although other configurations are possible, in the depicted embodiment, the susceptor windings 472 are substantially evenly radially spaced about the longitudinal axis 450 of the substrate portion 410. Although other embodiments are possible, each of the susceptor coils 472 of the depicted embodiments defines a longitudinal axis 474, and the susceptor coils 472 are configured such that the longitudinal axes 474 of the plurality of susceptor coils 472 are substantially parallel to the longitudinal axis 450 of the substrate portion 410.

The substrate portion 410 of the depicted embodiment includes a substrate material 448 and a plurality of susceptor wraps 472 is embedded or dispersed within the substrate material 448. In some embodiments, the substrate material may comprise an extruded tobacco structure. For example, in some embodiments, the extruded structure may include or may consist essentially of tobacco, tobacco-related materials, glycerin, water, binder materials and/or fillers and curing agents, such as, for example, one or more of calcium carbonate, rice flour, corn flour, and the like. In various embodiments, suitable binder materials may include alginates, such as ammonium alginate, propylene glycol alginate, potassium alginate, and sodium alginate. Alginates, particularly high viscosity alginates, can be used in conjunction with controlled levels of free calcium ions. Other suitable binder materials include hydroxypropyl cellulose, such as Klucel H from argylon corporation; hydroxypropyl methylcellulose, such as Methocel K4MS from the dow chemical company; hydroxyethyl cellulose, such as Natrosol 250MRCS from argron corporation; microcrystalline cellulose, such as Avicel from FMC corporation; methylcellulose, such as Methocel A4M from the dow chemical company; sodium carboxymethylcellulose, such as CMC 7HF and CMC 7H4F from hegmas corporation (Hercules Inc). Still other possible binder materials include starch (e.g., corn starch), guar gum, carrageenan, locust bean gum, pectin, and xanthan gum. In some embodiments, a combination or mixture of two or more binder materials may be employed. Other examples of adhesive materials are described, for example, in U.S. patent No. 5,101,839 to Jakob et al and U.S. patent No. 4,924,887 to Raker et al, each of which is incorporated herein by reference in its entirety. In some embodiments, the aerosol-forming material may be provided as part of a binder material (e.g., propylene glycol alginate). Further, in some embodiments, the binder material may include nanocellulose derived from tobacco or other biomass.

In some embodiments, the substrate material may comprise an extruded material, as described in U.S. patent application publication No. 2012/0042885 to Stone et al, which is incorporated herein by reference in its entirety. In yet another embodiment, the substrate material may comprise an extruded structure and/or substrate formed from pelletized tobacco and/or non-pelletized tobacco. Pelletized tobacco is known, for example, from U.S. patent No. 5,105,831 to Banerjee et al, which is incorporated herein by reference in its entirety. Pelletized tobacco comprises about 20% to about 50% by weight of the tobacco mixture in powder form, glycerin (about 20% to about 30% by weight), calcium carbonate (typically about 10% to about 60% by weight, typically about 40% to about 60% by weight), and a binder and/or flavoring agent as described herein. In various embodiments, the extruded material may have one or more longitudinal openings. In other embodiments, the extruded material may have two or more regions, for example, an extrudate with a wagon wheel cross-section.

Additionally or alternatively, the substrate material may comprise, or consist essentially of, an extruded structure and/or substrate comprising or consisting of tobacco, glycerine, water and/or binder material, and further configured to substantially maintain its structure throughout the aerosol-generating process. That is, the substrate material may be configured to substantially maintain its shape (i.e., the substrate material does not continuously deform under an applied shear stress) throughout the aerosol-generating process. While such exemplary substrate materials may include liquid and/or some moisture content, the substrate material may remain substantially solid throughout the aerosol-generating process and may substantially maintain structural integrity throughout the aerosol-generating process. In U.S. patent application publication No. 2015/0157052 to Ademe et al; U.S. patent application publication No. 2015/0335070 to Sears et al; U.S. patent No. 6,204,287 to White; and U.S. patent No. 5,060,676 to heart et al, which is incorporated herein by reference in its entirety, describe exemplary tobacco and/or tobacco-related materials suitable for use as substantially solid substrate materials.

In other embodiments, the substrate material may include a flavored and aromatic tobacco mixture in the form of cut filler. In another embodiment, the substrate material may comprise reconstituted tobacco material, such as described in U.S. patent No. 4,807,809 to Pryor et al; U.S. patent nos. 4,889,143 to Pryor et al and 5,025,814 to Raker, which are incorporated herein by reference in their entirety. Further, the reconstituted tobacco material may include reconstituted tobacco paper for cigarette types as described in r.j. reynolds tobacco company monograph (1988) chemical and biological research on heated novel cigarette prototypes replacing tobacco, the entire contents of which are incorporated herein by reference. For example, the reconstituted tobacco material may comprise a sheet material comprising tobacco and/or tobacco-related material. Thus, in some embodiments, the substrate material may be formed from a roll of reconstituted tobacco material. In another embodiment, the substrate material may be formed from shreds, strips, and/or the like of reconstituted tobacco material. In another embodiment, the tobacco sheet may comprise a crimped sheet of reconstituted tobacco material. In some embodiments, the substrate material may include superposed layers (e.g., gathered webs) that may or may not include a thermally conductive component. An example of a Substrate material comprising a series of overlapping layers (e.g., an aggregated web) of an initial Substrate sheet formed from a fibrous filler material, an Aerosol-forming material, and a plurality of thermally conductive components is described in U.S. patent application publication No. 15/905320 entitled "Heat coupling Substrate For Electrically Heated Aerosol Delivery Device," filed on 26.2.2018, incorporated herein by reference in its entirety.

In some embodiments, the substrate material may include microcapsules, beads, granules, and/or the like having tobacco-related materials. For example, representative microcapsules can be generally spherical in shape and can have an outer cover or shell containing a liquid center region of tobacco-derived extract and/or the like. In some embodiments, the substrate material may comprise a plurality of microcapsules, each microcapsule being formed in a hollow cylindrical shape. In some embodiments, the substrate material may comprise a binder material configured to maintain the structural shape and/or integrity of the plurality of microcapsules formed in the hollow cylindrical shape.

The tobacco used in one or more of the substrate materials may include or be derived from tobacco such as flue-cured, burley, oriental, maryland, dark flue-cured and orchid tobaccos, as well as other rare or specialty tobaccos, or mixtures thereof. In U.S. patent No. 4,836,224 to Lawson et al; U.S. patent No. 4,924,888 to perfect et al; U.S. patent No. 5,056,537 to Brown et al; U.S. patent No. 5,159,942 to Brinkley et al; U.S. patent No. 5,220,930 to Gentry; U.S. patent No. 5,360,023 to Blakley et al; U.S. patent No. 6,701,936 to Shafer et al; U.S. patent No. 6,730,832 to Dominguez et al; U.S. patent No.7,011,096 to Li et al; U.S. patent No.7,017,585 to Li et al; U.S. patent No.7,025,066 to Lawson et al; U.S. patent application publication No. 2004/0255965 to perfect et al; various representative tobacco types, processed tobacco types, and types of tobacco blends are set forth in Bereman's PCT publication No. WO 02/37990 and Bombick et al, Foundation application, journal of toxicology 39, pages 11-17 (1997); the entire disclosure of the above documents is incorporated herein by reference.

In various embodiments, the substrate material may have a variety of configurations based on the various materials used therein. For example, the sample substrate material can include up to about 98% by weight, up to about 95% by weight, or up to about 90% by weight of tobacco and/or tobacco-related material. The sample substrate material can also include up to about 25%, about 20%, or about 15% by weight water, specifically about 2% to about 25%, about 5% to about 20%, or about 7% to about 15% by weight water. Flavorants and the like (including, for example, drugs such as nicotine) can comprise up to about 10%, up to about 8%, or up to about 5% by weight of the aerosol delivery member.

In some embodiments, flame retardant/flame retardant materials and other additives may be included in the substrate material, and may include organophosphorus compounds, borax, hydrated alumina, graphite, potassium tripolyphosphate, dipentaerythritol, pentaerythritol, and polyols. Other agents such as nitrite phosphonates, monoammonium phosphates, ammonium polyphosphates, ammonium bromides, ammonium borates, ethanolammonium borates, ammonium sulfamates, halogenated organic compounds, thioureas, and antimony oxides are suitable, but not preferred. In various aspects of flame retardant, burn and/or char inhibiting materials used in substrate materials and/or other components, whether used alone or in combination with each other and/or other materials, it is most preferred to provide the desired properties without undesirable outgassing or melting-type behavior. Other examples include diammonium phosphate and/or other salts configured to help prevent ignition, pyrolysis, combustion, and/or charring of the substrate material by the heat source. In U.S. patent No. 4,947,874 to Brooks et al; U.S. patent No.7,647,932 to Cantrell et al; U.S. patent No. 8,079,371 to Robinson et al; U.S. patent No.7,290,549 to Banerjee et al; and Crooks et al, U.S. patent application publication No. 2007/0215167, which proposes various ways and methods of incorporating tobacco into smoking articles, particularly smoking articles designed to not intentionally burn nearly all of the tobacco in those smoking articles; the entire disclosure of the above documents is incorporated herein by reference.

According to other embodiments of the present disclosure, the substrate material may also incorporate tobacco additives of the type conventionally used in the manufacture of tobacco products. These additives may include types of materials used to enhance the flavor and aroma of tobacco used in the production of cigars, cigarettes, pipes, and the like. For example, these additives may include various cigarette casing and/or dressing components. See, for example, U.S. patent No. 3,419,015 to Wochnowski; U.S. patent No. 4,054,145 to Berndt et al; U.S. patent No. 4,887,619 to Burcham et al; U.S. patent No. 5,022,416 to Watson; U.S. patent nos. 5,103,842 to Strang et al and 5,711,320 to Martin; the disclosure of which is incorporated herein by reference in its entirety. Preferred shell materials may include water, sugar and syrups (e.g., sucrose, glucose and high fructose corn syrup), humectants (e.g., glycerin or propylene glycol) and flavorants (e.g., cocoa and licorice). Those additional components may also include a topical material (e.g., a flavoring agent, such as menthol). See, for example, U.S. patent No. 4,449,541 to Mays et al, the disclosure of which is incorporated herein by reference in its entirety. Additional materials that may be added include those disclosed in U.S. patent No. 4,830,028 to Lawson et al and U.S. patent No. 8,186,360 to Marshall et al, the disclosures of which are incorporated herein by reference in their entirety.

Various types of flavourants or materials that alter the sensory or organoleptic properties or properties of the mainstream aerosol of a smoking article are suitable for use. In some embodiments, such flavoring agents may be provided from sources other than tobacco, and may be natural or artificial. For example, some flavourants may be applied or incorporated into the substrate material and/or those regions of the smoking article where aerosol is generated. In some embodiments, such formulations may be supplied directly to a heating chamber or region proximate a heat source, or provided with a substrate material. Exemplary flavoring agents may include, for example, vanillin, ethyl vanillin, cheese, tea, coffee, fruit (e.g., apple, cherry, strawberry, peach and citrus-flavored, including lime and lemon), maple, menthol, peppermint, spearmint, wintergreen, nutmeg, clove, lavender, cardamom, ginger, honey, anise, sage, cinnamon, sandalwood, jasmine, acerola, cocoa, licorice; and flavors and flavor packs of the type and character traditionally used as flavors for cigarettes, cigars and pipe tobacco. Syrups such as high fructose corn syrup may also be suitable for use.

Flavoring agents may also include acidic or basic characteristics (e.g., organic acids such as levulinic acid, succinic acid, pyruvic acid, and benzoic acid). In some embodiments, the flavoring agent may be combined with elements of the base material, if desired. Suitable exemplary plant-derived compositions are disclosed in U.S. patent No. 9,107,453 to Dube et al and U.S. patent application publication No. 2012/0152265, the disclosures of which are incorporated herein by reference in their entirety. Any material such as flavors, casings, etc., that can be used in conjunction with a tobacco material to affect its sensory characteristics, including organoleptic properties, can be combined with the substrate material. In particular, organic acids can be incorporated into the substrate material to affect the flavor, feel, or sensory characteristics of a drug, such as nicotine, that can be incorporated with the substrate material. For example, organic acids such as levulinic, lactic and pyruvic acids may be included in the tobacco substrate together with nicotine, and any combination of organic acids in amounts equimolar to nicotine (based on total organic acid content) is suitable. For example, in some embodiments, the substrate material can include about 0.1 to about 0.5 moles of levulinic acid per mole of nicotine, about 0.1 to about 0.5 moles of pyruvic acid per mole of nicotine, about 0.1 to about 0.5 moles of lactic acid per mole of nicotine, or a combination thereof, until a concentration is reached where the total amount of organic acids present is equimolar to the total amount of nicotine present in the substrate material. Various other examples of organic acids that can be used to produce the substrate material are disclosed in U.S. patent application publication No. 2015/0344456 to Dull et al, which is incorporated herein by reference in its entirety.

The selection of these additional components may be variable based on factors such as the desired organoleptic properties of the smoking article, and the present disclosure is intended to encompass any such additional components that would be apparent to one skilled in the art of tobacco and tobacco-related or tobacco-derived products. See "Tobacco Flavoring Substances and Methods" by Gutcho of Noyes Data Corp. (Noyes Data Corp.) (1972) and "Tobacco Flavoring for Smoking Products" by Leffingwell et al (1972), the disclosures of which are incorporated herein by reference in their entirety.

In some embodiments, the substrate material may include other materials having various inherent characteristics or properties. For example, the substrate material may comprise a plasticized material in the form of rayon or regenerated cellulose. As another example, viscose (e.g., commercially available) Suitably, the viscose is a regenerated cellulose product incorporating silica. Some carbon fibers may include at least 95% or more carbon. Similarly, natural cellulosic fibers such as cotton are suitable and may be impregnated with or otherwise treated with silica, carbon or metal particles to enhance flame retardant properties and minimize exhaust emissions, particularly any undesirable exhaust components that adversely affect flavor(particularly to minimize the possibility of any toxic exhaust products). The cotton may be treated with, for example, boric acid or various organophosphate compounds to provide the desired flame retardant properties by dip coating, spray coating, or other techniques known in the art. These fibers may also be treated with organic or metallic nanoparticles (coating, impregnation, or both by dipping, spraying, or vapor deposition) to impart the desired flame retardancy without undesirable exhaust emissions or melt-type behavior.

In the depicted embodiment, the substrate material may also include an aerosol-forming material, such as an aerosol precursor composition. In some embodiments, the aerosol precursor composition may comprise one or more humectants, such as propylene glycol, glycerin, and/or the like. In various embodiments, the amount of aerosol precursor composition used within the aerosol delivery device can be such that the aerosol delivery device exhibits acceptable sensory and organoleptic properties as well as desirable performance properties. For example, in some embodiments, aerosol precursor compositions (such as, for example, glycerol and/or propylene glycol) can be used to generate a visible aerosol that resembles the mainstream of tobacco smoke morphology in many respects. For example, the amount of aerosol precursor composition incorporated into the substrate material of a smoking article can be in the range of about 4.5 grams or less, 3.5 grams or less, about 3 grams or less, about 2.5 grams or less, about 2 grams or less, about 1.5 grams or less, about 1 gram or less, or about 5 grams, however, it should be noted that in other embodiments, values outside of these ranges are possible.

In U.S. patent No. 4,793,365 to Sensabaugh, jr. et al; U.S. patent No. 5,101,839 to Jacob et al; PCT WO 98/57556 to Biggs et al; representative types of other aerosol precursor compositions are set forth in R.J. Reynolds Tobacco monograph, Chemical and Biological students on New Cigarette Heat institute of Burn Tobacco (1988); the above disclosure is incorporated herein by reference. In some aspects, the aerosol source member may produce a visible aerosol (and if desired air cooled) upon application of sufficient heat thereto, and the aerosol source member may produce a "smoke-like" aerosol. In other aspects, the aerosol source member may produce an aerosol that is substantially invisible, but identified as present by other characteristics such as flavor or mouthfeel. Thus, the properties of the aerosol produced may vary depending on the particular components of the aerosol delivery member. In various embodiments, the aerosol source member may be chemically simple relative to the chemical nature of the smoke produced by burning tobacco.

In some embodiments, an aerosol precursor composition, also referred to as a vapor precursor composition or an "electronic liquid," can comprise a variety of components including, for example, a polyol (e.g., glycerol, propylene glycol, or mixtures thereof), nicotine, tobacco extract, and/or flavorants. In U.S. patent No.7,217,320 to Robinson et al, U.S. patent publication No. 2013/0008457 to Zheng et al; U.S. patent publication No. 2013/0213417 to Chong et al; collett et al, U.S. patent publication No. 2014/0060554; lipowicz et al, U.S. patent publication No. 2015/0030823; and Koller, U.S. patent publication No. 2015/0020830, and WO 2014/182736 to Bowen et al, the contents of which are incorporated herein by reference in their entirety, describe and characterize some possible types of aerosol precursor components and compositions. Other aerosol precursors that may be employed include those already included in the following products: R.J. Reynolds Vapor companyProducing a product; BLUTM product of Fontem vents B.V.; MISTIC MEDIHOL product from Mistic Ecigs; MARK TEN product of Luma corporation (Nu Mark LLC); JuUL Labs JUUL product; and the product of VYPE from CN Creative Co. It is also possible that so-called "juice" for electronic cigarettes is already available from Johnson Creek Enterprises LLC. Further possible exemplary aerosol precursor compositions are sold under the trade names: BLACK NOTE, COSMIC FOG, MILKMAN E-LIQUID, FIVE PAWNS, VAPOR CHEF, VAPE WILD, BOOSTED, THESTEAM FACTORY, MECH SAUCE, CASEY JONES MAINLINE RESERVE, DR.CRIMY' S V-LIQUID, SMILEY LIQUID, BEANOWN VAPOR, CUTTOOD, CYCLOPS VAPOR, SICARBOY, GOOD LIFE VAPOR, TELEOS, PINUP VAPOR, SPACE JAM, MT.BAKER VAPOR, and JIMMY THE JONES MAN.

The amount of aerosol precursor incorporated within the aerosol source member is such that the aerosol generating member provides acceptable sensory and desirable performance characteristics. For example, it is desirable to use a sufficient amount of aerosol-forming material for generating a visible aerosol that resembles the mainstream of tobacco smoke in many respects. The amount of aerosol precursor within the aerosol-generating system may depend on factors such as the number of puffs desired for each aerosol-generating member. In one or more embodiments, about 0.5 ml or more, about 1 ml or more, about 2 ml or more, about 5 ml or more, or about 10 ml or more of the aerosol precursor composition can be included.

Referring back to fig. 8 and 9, the substrate portion 410 includes a plurality of susceptor strips 470, each susceptor strip including a plurality of susceptor coils 472, wherein the susceptor coils 472 include resonant receptors. In various embodiments, the plurality of susceptor coils 472 may have various coil shapes, sizes, and materials, and in some embodiments, these different shapes, sizes, and materials may be combined in the same susceptor strip. For example, in some embodiments, the plurality of susceptor coils 472 may comprise a metallic material, such as a stainless steel material (e.g., a low grade stainless steel), an aluminum material, or an aluminum foil material. In other examples, the plurality of susceptor coils 472 may include ferromagnetic materials including, but not limited to, cobalt, iron, nickel, zinc, manganese, and any combination thereof. In additional embodiments, the plurality of susceptor coils 472 may comprise other materials including, for example, ceramic materials such as silicon carbide, carbon materials, and any combination of any of the above. In yet another embodiment, the plurality of susceptor coils may comprise other conductive materials, including metals such as copper, alloys of conductive materials, or other materials in which one or more conductive materials are embedded. Although the dimensions of the susceptor coils may vary, in some embodiments, the diameter of the susceptor coils may be in the inclusive range of about 8.5mm to about 10 mm. Various susceptor wrap lengths are possible.

In the depicted embodiment, changes in current in the spiral windings (i.e., resonant emitters) in the control body, as directed to the spiral windings from the power source by the control body (e.g., via the drive circuit), create local magnetic flux and hysteresis effects in the plurality of susceptor windings 472 (i.e., resonant receivers), which then provide local heating in the vicinity of the plurality of susceptor windings 472. As described above, in some embodiments, the control means may comprise an inverter or inverter circuit configured to convert direct current provided by the power source into alternating current provided to the resonant transmitting portion. For this topology, a three circuit configuration may be used, where one circuit includes a half bridge rectifier, another circuit includes a full bridge rectifier, and a third circuit includes a transformer that can convert a dc signal to an ac signal.

In various embodiments, both the plurality of susceptor windings 472 and emitter spiral windings may comprise an electrically conductive material. For example, the spiral winding and/or the plurality of susceptor windings 472 may comprise various conductive materials, including metals such as copper or aluminum, alloys of conductive materials (e.g., diamagnetic, paramagnetic or ferromagnetic materials), or other materials such as ceramic or glass in which one or more conductive materials are embedded. In some embodiments, the plurality of susceptor particles may be coated with or otherwise include a thermally conductive passivation layer (e.g., a thin layer of glass).

In some embodiments, the plurality of porous susceptor coils 472 contained in the aerosol source member may be supplemented by additional/alternative resonant receivers. For example, in some embodiments, the control body of the device may include a separate resonant receiver, such as, for example, one or more receiver pins. Examples of suitable components are described in U.S. patent application serial No. 15/799,365, filed on 31/10/2017, which is incorporated herein by reference in its entirety.

Referring to fig. 9, the substrate portion 410 of some embodiments may further include a cover layer 454 disposed around the substrate material 448. In the depicted embodiment, the cover layer 454 includes a foil sublayer 456 and a paper sublayer 458, wherein the paper sublayer 458 is disposed about the foil sublayer 456. In some embodiments, the foil sublayer and the paper sublayer may comprise a single laminate. In some embodiments, the paper sublayer may comprise paper or other fibrous materials, such as cellulosic materials. The paper sublayer material may also include at least one filler material embedded or dispersed within the fibrous material. In various embodiments, the filler material may be in the form of water-insoluble particles. Furthermore, the filler material may incorporate inorganic components. In some embodiments, the paper sub-layers may be formed from multiple layers, such as an underlying loose layer and an overlying layer such as a typical wrapper in a cigarette. Such materials may include, for example, lightweight "rag-like fibers" such as flax, hemp, sisal, straw, and/or esparto grass. In U.S. patent No. 5,105,838 to White et al; U.S. Pat. nos. 5,271,419 to Arzonico et al; U.S. patent No. 5,220,930 to Gentry; U.S. patent No. 6,908,874 to Woodhead et al; U.S. patent No. US6,929,013 to Ashcraft et al; U.S. patent No.7,195,019 to Hancock et al; U.S. patent No.7,276,120 to Holmes; U.S. patent No.7,275,548 to Hancock et al; PCT WO 01/08514 to Fournier et al; and PCT WO 03/043450 to Hajaligol et al, all of which are incorporated herein by reference in their entirety. In some embodiments, the paper material may comprise materials such as RJ raynaz Tobacco Company Grades (r.j. reynolds tobaco Company Grades)119, 170, 419, 453, 454, 456, 465, 466, 490, 525, 535, 557, 652, 664, 672, 676, and 680, commercially available from Schweitzer-madit International. In the depicted embodiment, the foil sub-layer 352 includes a metal foil material, such as an aluminum foil material. However, in other embodiments, the foil sub-layer may include other materials, including but not limited to copper materials, tin materials, gold materials, graphene materials, graphite materials, or other thermally conductive carbon-based materials, and/or any combination thereof. Although various thicknesses are possible, in some embodiments, the cover layer can have a thickness within the inclusive range of about 1mm to about 3 mm.

Although the control unit of the embodiment of fig. 3 is shown as being substantially cylindrical, the present disclosure is not limited to aerosol delivery devices having such shapes. For example, an alternative embodiment is shown in FIG. 10. Similar to the embodiment described with reference to fig. 3, the embodiment depicted in fig. 10 comprises an aerosol delivery device 500 comprising a control body 502 configured to receive an aerosol source member 504. In various embodiments, the aerosol source member 504 may have a similar construction to the aerosol source members 104, 204 described above and may include some similar components (and similar construction and component variations). Reference is therefore made to the relevant discussion of these configurations and components (and variations of configurations and components). As described above, the aerosol source member 504 may include a heated end 506 configured to be inserted into the control body 502 and a mouth end 508 at which a user inhales to generate an aerosol. The control body 502 may include a housing 518 including an opening 519 defined therein, a flow sensor (not shown, e.g., a suction sensor or a pressure switch), a control component 522 (e.g., a microprocessor, a microcontroller, a Printed Circuit Board (PCB) including a microprocessor and/or microcontroller, etc.), and a power source 524 (e.g., which may be a rechargeable battery and/or a rechargeable supercapacitor). Examples of power supplies, sensors, and various other possible electrical components are described above with reference to the exemplary embodiment of FIG. 3.

As with the embodiment of fig. 3, the control body 502 of the embodiment depicted in fig. 10 includes a resonant transmitter that forms a resonant transformer with a resonant receiver. The resonant transformer of various embodiments of the present disclosure may take a variety of forms, including embodiments in which one or both of the resonant transmitter and the resonant receiver are located in the control body and/or the aerosol delivery device. In the particular embodiment shown in fig. 6, the resonant emitter includes a helical winding 528. In various embodiments, the spiral wound element may be constructed of one or more electrically conductive materials. In further embodiments, the spiral wound element may include a non-conductive insulating cover/wrap material. Although in some embodiments the resonant emitter may surround an emitter support member (e.g., an emitter support drum), in the illustrated embodiment the windings themselves form a cylindrical structure. For example, in the illustrated embodiment, the individual turns of the helical winding 528 are proximate to one another such that the helical winding 528 effectively forms a cylindrical shape.

Although not shown in the illustrated embodiment, in various other embodiments the control body may comprise one or more locating features therein which, in combination with or as an alternative to the opening of the housing, may facilitate correct positioning of the aerosol source member when inserted into the control body. For example, in further embodiments, the control body of the illustrated embodiment may comprise a positioning cylinder extending from the opening of the housing through the helical winding such that an inner diameter of the positioning cylinder may be slightly larger or approximately equal to an outer diameter of the corresponding aerosol source member (e.g. to create a snug fit) such that the positioning cylinder may guide the aerosol source member to the correct position relative to the control body.

In another aspect, the present disclosure may relate to a kit providing a plurality of components as described herein. For example, the kit may comprise a control body having one or more aerosol source members. The kit may also include a control body having one or more charging components. The kit may also include a control body having one or more batteries. The kit may also include a control body having one or more aerosol source members and one or more charging components and/or one or more batteries. In further embodiments, the kit may comprise a plurality of aerosol source members. The kit may further comprise a plurality of aerosol source members and one or more batteries and/or one or more charging components. In the above embodiments, the aerosol source member or control body may be provided with a heating member included therein. The kits of the present invention may also include a housing (or other packaging, carrying or storage component) that houses one or more additional kit components. The housing may be a reusable hard or soft container. Further, the housing may simply be a box or other packaging structure.

Many modifications and other embodiments of the disclosure will come to mind to one skilled in the art to which this disclosure pertains having the benefit of the teachings presented in the foregoing descriptions and the associated drawings. Therefore, it is to be understood that the disclosure is not to be limited to the specific embodiments disclosed and that modifications and other embodiments are intended to be included within the scope of the appended claims. Although specific terms are employed herein, they are used in a generic and descriptive sense only and not for purposes of limitation.