阅读说明：本技术 用于检测和移除湿气的车辆乘客座椅 (Vehicle passenger seat for detecting and removing moisture ) 是由 V·亚都 R·亚都 于 2019-05-16 设计创作，主要内容包括：一种车辆乘客座椅,包括湿度传感器和处理器；湿度传感器检测车辆乘客座椅的湿度水平,并基于检测到的湿度水平产生湿度水平信号；处理器与湿度传感器通信,并确定湿度水平信号是否超过预定的湿度水平阈值。(A vehicle passenger seat comprising a humidity sensor and a processor; a humidity sensor detects a humidity level of a passenger seat of the vehicle and generates a humidity level signal based on the detected humidity level; the processor communicates with the humidity sensor and determines whether the humidity level signal exceeds a predetermined humidity level threshold.)

1. A vehicle passenger seat for a vehicle, comprising:

a humidity sensor that detects a humidity level of the vehicle passenger seat and generates a humidity level signal based on the detected humidity level; and

a processor in communication with the humidity sensor and determining whether the humidity level signal exceeds a predetermined humidity level threshold.

2. The seat of claim 1, further comprising an indicator that indicates when the humidity level signal exceeds the predetermined humidity level threshold.

3. The seat of claim 2, wherein the indicator comprises one of a visual indicator.

4. The seat of claim 2, wherein the indicator comprises an audible indicator.

5. The seat of claim 4, wherein the audible indicator comprises a sounding indicator that generates a sounding request to dry the vehicle passenger seat.

6. The seat of claim 1, further comprising a blower, and wherein the processor further activates the blower in response to the processor determining that the humidity level signal exceeds the predetermined humidity level threshold.

7. The seat of claim 6, wherein the processor is further responsive to a fan activation and estimates a drying time based on the detected humidity level.

8. A vehicle, comprising:

a vehicle passenger seat located within the vehicle;

a humidity sensor that detects a humidity level of the vehicle passenger seat and generates a humidity level signal based on the detected humidity level; and

a processor in communication with the humidity sensor and determining whether the humidity level signal exceeds a predetermined humidity level threshold.

9. The vehicle of claim 8, further comprising an indicator that indicates when the humidity level signal exceeds the predetermined humidity level threshold.

10. The vehicle of claim 8, wherein the indicator comprises one of a visual indicator and an audible indicator.

Technical Field

The present disclosure relates to a vehicle passenger seat for detecting and removing moisture, a vehicle having the vehicle passenger seat, and a ride sharing system including the vehicle having the vehicle passenger seat.

Introduction to the design reside in

This introduction generally presents the background of the disclosure. Work of the presently named inventors, to the extent it is described in this specification, as well as aspects of the description that may not otherwise qualify as prior art at the time of filing, are neither expressly nor impliedly admitted as prior art against the present disclosure.

Many people are looking for ways to reduce the cost of daily travel. More and more energy efficient automobiles are being designed and manufactured, and some people are more dependent on public transportation. However, one of the major drawbacks of public transportation is the lack of convenience, as public transportation vehicles often stop several stations along a predetermined and scheduled route, thereby extending the travel time of the occupant. Another disadvantage is that the riders are limited to the scheduled boarding and alighting times scheduled by the carrier.

Currently, a self-service car renting service is provided, and greater flexibility is provided for passengers. In some self-service vehicle rental services, the rider can order a vehicle that meets the rider's requirements, pick up the vehicle, drive the vehicle, and then return. There are also on-demand transportation services in which riders can order the vehicle and driver, and then the driver drives the vehicle to the rider, embarks the rider, and embarks the rider to a desired destination.

Manufacturers are increasingly producing vehicles with higher levels of drive automation. The functions of adaptive cruise control and lateral positioning have become popular and are the precursors for more fully automated vehicle driving. Furthermore, with the popularity of highly automated vehicles, the fully automated taxi service and shared vehicle market is developing.

In contrast to some on-demand transportation services, in these services, the driver may be in the vehicle and the driver may be responsible for maintaining the condition of the vehicle and ensuring that the vehicle is suitable for carrying passengers, while an on-demand autonomous vehicle may require maintenance that may not be noticed before the vehicle is provided to a new passenger. In vehicle rental systems, including those that may be self-service, the rental company may need to check the condition of the vehicle before providing the vehicle to a new customer to determine if maintenance is needed. This can be a tedious task for a company employee. Although leasing vehicles via self-service vehicle rental systems provides a viable alternative to typical vehicle rental systems and requires less staff to work, maintenance and monitoring of vehicle conditions in these systems still requires human involvement.

With the continued introduction and development of autonomous vehicles, the autonomy involved with these vehicles makes it difficult for companies providing autonomous transport services to check vehicle conditions, determine when maintenance is needed, and provide maintenance. For example, in a transportation service, a user of an autonomous vehicle may place the vehicle in a state that renders the vehicle unable to satisfy the next user.

It is expected that autonomous vehicles may soon appear as a vehicle with multiple unrelated occupants. This is similar to a mass transit system, but greatly improves the flexibility of customizing each trip based on the occupants currently riding and sharing the trip in the vehicle. In these cases, multiple unrelated occupants may schedule and/or organize the trip during the trip in a manner that shares the autonomous vehicle. In some cases, the seats in the shared vehicle may become wet and therefore unsuitable for use. In the absence of a driver or a person in charge of monitoring the condition of the vehicle, the vehicle may be provided to another occupant who may be disappointing with a wet seat provided in their vehicle. This situation may result in lost revenue for the owner/service provider.

Disclosure of Invention

In an exemplary aspect, a vehicle passenger seat includes a humidity sensor that detects a humidity level of the vehicle passenger seat and generates a humidity level signal based on the detected humidity level, and a processor that communicates with the humidity sensor and determines whether the humidity level signal exceeds a predetermined humidity level threshold.

In this manner, any of a variety of responses capable of remedying the vehicle passenger seat wetness condition may be provided in response to a determination that the humidity level signal exceeds the predetermined humidity level threshold. This is particularly advantageous in a ride sharing system where it may be important to remove a vehicle passenger seat in a wet condition from the availability of an intended occupant until the wet condition can be corrected.

In another exemplary aspect, the vehicle passenger seat further includes an indicator that indicates when the humidity level signal exceeds a predetermined humidity level threshold.

In another exemplary aspect, the indicator comprises a visual indicator.

In another exemplary aspect, the indicator comprises an audible indicator.

In another exemplary aspect, the audible indicator includes a sound emitting indicator that generates a sound emitting request to dry the vehicle passenger seat.

In another exemplary aspect, the vehicle passenger seat further comprises a blower, and wherein the processor further activates the blower in response to the processor determining that the humidity level signal exceeds the predetermined humidity level threshold.

In another exemplary aspect, the vehicle passenger seat further includes a blower, and the processor further activates the blower in response to the processor determining that the humidity level signal exceeds the predetermined humidity level threshold.

In another exemplary aspect, a vehicle includes a vehicle passenger seat positioned within the vehicle, a humidity sensor that detects a humidity level of the vehicle passenger seat and generates a humidity level signal based on the detected humidity level, and a processor that communicates with the humidity sensor and determines whether the humidity level signal exceeds a predetermined humidity level threshold.

In another exemplary ride sharing service implemented system, a vehicle having a vehicle passenger seat positioned within the vehicle, a humidity sensor that detects a humidity level of the vehicle passenger seat and generates a humidity level signal based on the detected humidity level, and a processor that communicates with the humidity sensor and determines whether the humidity level signal exceeds a predetermined humidity level threshold. The system also includes a host computer in communication with the processor and in selective communication with a plurality of user devices, each user device corresponding to an intended occupant, the host computer implementing ride sharing logic that allocates vehicle passenger seats among the plurality of vehicle passenger seats of each of the plurality of vehicles based on the determination by the processor whether the humidity level signal exceeds the predetermined humidity level threshold.

Further areas of applicability of the present disclosure will become apparent from the detailed description provided hereinafter. It should be understood that the detailed description and specific examples are intended for purposes of illustration only and are not intended to limit the scope of the disclosure.

The above features and advantages and other features and advantages of the present invention are readily apparent from the following detailed description, including the claims and the exemplary embodiments, taken in conjunction with the accompanying drawings.

Drawings

The present disclosure will become more fully understood from the detailed description and the accompanying drawings, wherein:

FIG. 1A is a perspective view of a vehicle passenger seat in a wet condition;

FIG. 1B is another perspective view of the vehicle passenger seat of FIG. 1A in a dry state;

FIG. 2A is a perspective view of another vehicle passenger seat according to the present disclosure;

FIG. 2B is a perspective view of the vehicle passenger seat of FIG. 2A in a condition responsive to a wet condition;

FIG. 2C is a perspective view of the vehicle passenger seat of FIG. 2A in a user-serviced (manually dried) state;

FIG. 3A is a perspective view of yet another vehicle passenger seat according to the present disclosure;

FIG. 3B is a perspective view of the vehicle passenger seat of FIG. 3A in a condition responsive to a wet condition;

FIG. 3C is a perspective view of the vehicle passenger seat of FIG. 3A in a passenger useable position;

FIG. 4 is a schematic diagram of a system on which vehicle egress and/or ride sharing services may be implemented in accordance with an exemplary embodiment of the present disclosure; and

fig. 5 is a flow chart of an exemplary method according to the present disclosure.

Detailed Description

Reference will now be made in detail to a few examples of the present disclosure that are illustrated in the accompanying drawings. Wherever possible, the same or similar reference numbers are used in the drawings and the description to refer to the same or like parts or steps. The drawings are in simplified form and are not to precise scale. Directional terminology, such as top, bottom, left, right, above, over, below, rear, and front, may be used with respect to the drawings for convenience and clarity only. These and similar directional terms should not be construed to limit the scope of the present disclosure in any way. Referring now to the drawings, in which like reference numbers correspond to like or similar components throughout the several figures, FIG. 1 is a perspective view of a vehicle passenger seat 100 in a wet condition. The vehicle passenger seat 100 includes one or more wet and/or humid regions 102. As a shared (or shared) autonomous vehicle (not shown) including a vehicle passenger seat 100 having a wet zone 102 may not be satisfactory for a potential passenger who wants to ride the vehicle passenger seat 100. The source of the wet area 102 may be any number of potential sources, such as, but not limited to: previous passengers were seated with wet clothing, previous passengers placed wet and/or leaky objects on the seats, and so on.

As a warning, the vehicle passenger seat 100 includes a visual indicator 104, which visual indicator 104 may illuminate in a manner that draws the attention of a potential passenger of the seat and provides a visual warning that the vehicle passenger seat 100 includes a wet area 102. For example, the visual indicator 104 may be illuminated in a red or amber color, which typically represents a warning. In this manner, a potential passenger may then select to ride a different seat in the vehicle, select to dry the seat himself, alert others of the condition, and/or abandon the vehicle according to their preferences. Fig. 1B shows the vehicle passenger seat 100 not including the wet area 102, and in response, the visual indicator 104 may operate in a manner that does not provide a warning (in the absence of a wet condition) or may provide a visual indicator that the seat is in a condition suitable for being seated. For example, the visual indicator 104 may be illuminated in a green color, which generally represents a ride advantage.

Fig. 2A-2C show perspective views of another vehicle passenger seat 200 according to the present disclosure. The vehicle passenger seat 200 may include a visual indicator 204, and the visual indicator 204 may operate in a manner similar to that described with reference to fig. 1A-1B. Fig. 2A illustrates an object 206, which object 206 may be located on or near the vehicle passenger seat 200 and may serve as a source of moisture that causes a wet area 202 to be created on the vehicle passenger seat 200. For example, the object 206 may be a bottle of liquid that either seeps out of water and drips moisture onto the vehicle passenger seat 200, and/or the bottle may leak liquid onto the vehicle passenger seat 200 to form the wet area 202.

The vehicle passenger seat 200 includes a humidity sensor 208 that senses a humidity level of the vehicle passenger seat 200 and generates a humidity level signal indicative of the humidity level of the vehicle passenger seat 200. The vehicle passenger seat 200 and/or the vehicle may include a processor 210 in communication with the humidity sensor 208 to receive the humidity level signal. The processor 210 may then determine whether the humidity level signal value exceeds a predetermined threshold. If the processor 210 determines that the humidity level signal value exceeds the predetermined threshold, the processor 210 may respond by sending a command to the visual indicator 204 to provide an alert.

The vehicle passenger seat 200 and/or the vehicle in which the vehicle passenger seat 200 is located may further include an audible indicator 212. If the processor 210 determines that the humidity level signal value exceeds the predetermined threshold, the processor 210 may respond by sending a command to the audible indicator 210 to provide an audible indication. For example, the audible indicator 210 may generate a noise that draws attention to the vehicle passenger seat 200 so that the vehicle passenger may notice a wet condition and take action to remedy the condition; and/or in another exemplary embodiment, the audible indicator 210 may generate a voice-recorded warning of the wetness condition and/or require action from the vehicle's current occupant to remedy the wetness condition.

As shown in fig. 2C, if the wet condition is remedied, the humidity sensor 208 will generate a humidity level signal having a value below a predetermined threshold, the processor 210 may determine that the humidity level signal has a value below the predetermined threshold, and in response, may then command the visual indicator 204 and the audible indicator 212 to present a condition indicative of a non-wet condition of the vehicle passenger seat. For example, the audible indicator 212 may be silent, the visual indicator 204 may be off or illuminated in a color (e.g., illuminated in green) indicating a state where the vehicle passenger seat 200 is ready to be seated.

Fig. 3A to 3C show yet another vehicle passenger seat 300 according to the present disclosure. The vehicle passenger seat 300 includes a plurality of humidity sensors 308. While fig. 2A-2C illustrate the vehicle passenger seat 200 having only a single humidity sensor 208, while fig. 3A-3C illustrate the vehicle passenger seat 300 having two humidity sensors 308, it is understood that vehicles and/or vehicle passenger seats that include humidity sensors capable of sensing a humidity level of a surface of the vehicle passenger seat are included within the scope of the present disclosure.

The vehicle passenger seat 300 also includes a visual indicator 304 and a processor 310 in communication with the visual indicator 304 and each of a plurality of humidity sensors 308. The processor 310 and the visual indicator 304 may operate in the same or similar manner as previously described with reference to fig. 1A-2C. The vehicle passenger seat 300 of fig. 3A-3C does not include an audible indicator. However, it should be understood that this is merely one exemplary embodiment and that any number of audible indicators may optionally be included within the vehicle and/or vehicle passenger seat and remain within the scope of this disclosure.

The vehicle passenger seat 300 includes a plurality of fans 314. The plurality of fans 314 may optionally be positioned within the vehicle passenger seat 300 and/or external to the vehicle passenger seat 300 and incorporated into a vehicle (not shown) in which the vehicle passenger seat 300 is located. Each of the plurality of fans is configured and positioned to generate an air flow across one or more surfaces of the vehicle passenger seat 300 to promote drying of any wet conditions. For example, in response to the processor 310 determining that the value of the humidity level signal from the humidity sensor 308 exceeds a predetermined threshold due to a wet zone 302 on the vehicle passenger seat (as shown in fig. 3A), the processor 310 may generate a control signal that triggers operation of one or more fans 314 corresponding to the wet zone 302. In this manner, the vehicle passenger seat 300 (and/or the vehicle) may remedy the wet condition of the vehicle passenger seat 300 without requiring manual intervention by the vehicle passenger and/or an employee of the mobile service provider. Without such ability to automatically remove the wet area 302, the customer or potential occupant may be frustrated and/or the vehicle may have to be completely removed from the availability of new occupants until the vehicle can be manually serviced to remedy the wet condition. The vehicle and vehicle passenger seat 300 of the present disclosure eliminates these problems, improves passenger satisfaction, maintains the usability of the vehicle in mobile services, and continues the vehicle's ability to generate revenue.

According to an exemplary embodiment of the present invention, a ride sharing service is provided. The ride sharing service provides a means for subscribers of the service to share ride share activities (e.g., request and provide rides) through a flexible and convenient system. The ride sharing service also provides a means for the subscriber to predetermine the qualifications of the candidates he/she wishes to participate in the ride sharing activity. The ride sharing service also minimizes delays associated with sharing a personal coordination schedule for rides through dynamically updated user interfaces and user configured settings.

Fig. 4 is a schematic diagram of a system 400 on which vehicle egress and/or ride sharing services may be implemented, according to an example embodiment of the present disclosure. The system 400 includes a vehicle 402 in communication with a host system 404 over a communication network 406. The system 400 also includes user devices 408A-408n that anticipate occupants 410A-410 n. Each of the vehicle 402, the host system 404, and the user device 408 are communicatively connected to each other via one or more communication networks 406.

The host system 404 may be implemented as a high-speed computer processing device (e.g., a mainframe computer) capable of handling the large amount of activity performed by the vehicle 402 and the user device 408 relative to the host system 404. The host system 404 may be operated by an enterprise or organization implementing the exemplary ride sharing service. The host system 404 may operate as a web server that includes a website for generating accounts or subscriptions to ride sharing services. The host system 404 may also operate as an application server, including one or more applications for providing ride sharing services. The one or more applications are collectively referred to herein as ride sharing logic 414. In one embodiment, the host system 404 is communicatively connected to a storage device 412, the storage device 412 storing accounts established for subscribers of the ride sharing service, and related data for facilitating the ride service. The account records created via ride sharing logic 414 may include subscriber identification data (e.g., name, address, employer business name and address), billing account information (e.g., bank account data), and any other characteristics of the subscriber for implementing the ride sharing service. Although the storage device 412 is shown in FIG. 4 as a physical device separate from the host system 404, it should be understood that the storage device 412 may be integrated into the host system 404 as internal memory (e.g., as a hard disk drive).

User devices 408A-408n may be any type of communication device capable of sending and receiving information over a network. For example, the communication devices 408A-408n may include one or more wireless communication devices (e.g., cellular phones, smart phones, personal digital assistants) and wired communication devices (e.g., general purpose desktop or laptop computers), or may be a communication system as further described herein with respect to the vehicle 402. The prospective riders 410A-410n refer to ride share service subscribers seeking to participate in a ride share event. A ride sharing event refers to a ride share event in which the intended rider 410A-410n has been accepted or approved to share a ride with another user or a user currently sharing a ride with another user. The prospective riders 410A-410n may participate in looking for a ride share event through the respective communication devices, or have been approved and are waiting at a lift station for a ride share event. The communication devices 408A-408n may be configured to transmit and receive communications directly to the subscriber providing the ride share event or transmit and receive communications through the host system 404 to the subscriber providing the ride share event. Communication between subscribers may be communicated in any desired manner, such as text, instant messaging, voice, and the like.

The communication network 406 may be any type of network known in the art. For example, the network 406 may be a combination of public (e.g., the Internet), private (e.g., a local area network, a wide area network, a virtual private network), and may include, but is not limited to, wireless and wired transmission systems (e.g., satellite, cellular, terrestrial, etc.).

The vehicle 402 includes a communication system 416, which communication system 416, in turn, may include a plurality of components, such as input/output (I/O) components (not shown), each of which may communicate with each other via a communication bus (not shown). The vehicle also includes a processor 418 that executes logic in accordance with the methods of the present disclosure.

Although the exemplary ride shared suitThe communication system 416 is described herein with respect to the communication system 416, which is described as an onboard vehicle system, but it should be understood that other implementations may be configured to achieve the advantages of the present disclosure. For example, a portion of the functionality performed by the communication system 416 may be implemented using a wireless communication device (e.g., a smartphone and corresponding logic) that wirelessly communicates via, but is not limited to, a short-range communication network (e.g., via bluetooth)^TM) Communicatively coupled to the components of the communication system 104.

The vehicle 402 also includes one or more vehicle passenger seats 420, audible indicators 422, visual indicators 424, humidity sensors 426, and a fan 428. When in communication with the processor 418, these components may operate in the same or similar manner as described with reference to fig. 1A-3C.

In operation, one or more prospective riders 410A-410n may operate their user devices 408A-408n to initiate a ride request to the host system 404 via the communication network 406. The host system 404 may then select a vehicle 402 from a plurality of available vehicles in the ride share system and dispatch the vehicle 402 to the location of the requesting prospective occupant; and/or if the rider has ridden the vehicle 402, submit a request to the rider in the vehicle through their user device requesting that a ride be provided in common with the intended rider.

In contrast, with current ride sharing systems, a humidity sensor 426 in communication with a processor 418 in the vehicle 402 is able to determine whether the vehicle passenger seat 420 is available for seating by an expected occupant. If the processor 418 in communication with the humidity sensor 426 determines that the vehicle passenger seat 420 has a wet area, the processor 418 may communicate with the host system 404 and alert the host system 404 that the seat is not in a condition to be provided to the intended occupant. In other words, the vehicle passenger seat 420 having a wet area may be removed from service. At the same time, other vehicle passenger seats 420 that may not have a wet zone in the vehicle may continue to be provided to the intended occupant. Optionally, the vehicle 402 may be removed from service and submitted for maintenance to remedy the wet area and return the vehicle passenger seat 420 (and vehicle 402) to service and available for use by the intended occupant.

Alternatively, the ability of the vehicle 402 to provide visual and/or audible alerts to the current occupant of the wetness condition may also be provided through the use of audible indicators 422, visual indicators 424, and/or user devices 408. In this manner, the system may prompt the current occupant, who may have caused the wet condition, to remedy the wet condition, enabling the vehicle 402 to selectively remove the vehicle passenger seat 420 from the availability of the intended occupant via the host system 404 and the ride share logic 414, and return the vehicle passenger seat 420 to the availability of the intended occupant via the host system 404 and the ride share logic 414 when/if the current occupant remedies the wet condition.

Further, the vehicle 402 includes one or more fans 428 that, as a result of their communication with the processor 418, the fans 428 may be selectively operated to remedy the wet condition of the vehicle passenger seat 420 if the processor 418 determines that the humidity sensor 426 generates a signal indicating that the humidity level of the vehicle passenger seat 420 exceeds a predetermined threshold. In this manner, one or more vehicle passenger seats 420 having a wet condition may be removed from service and made unavailable to the intended occupant through the host system 404 and ride share logic 414 until the wet condition is remedied.

Fig. 5 is a flow chart 500 of an exemplary method according to the present disclosure. The method begins at step 502 and continues to step 504. In step 504, the humidity sensor senses the humidity level of the vehicle passenger seat and proceeds to step 506. In step 506, the processor receives the humidity level signal from the humidity level sensor and determines whether the humidity level signal exceeds a predetermined threshold humidity level. If, in step 506, the processor determines that the humidity level signal from the humidity level sensor does not exceed the predetermined threshold humidity level, the method returns to step 504. However, if the processor determines in step 506 that the humidity level signal exceeds the predetermined threshold humidity level, the method continues to step 508. In step 508, the method activates an indicator, such as a visual indicator and/or an audible indicator in the vehicle, that provides an indication in the vehicle that the vehicle passenger seat has a wet condition. This provides the occupant of the currently possible ride vehicle with the opportunity to remedy the wet condition. The method then continues to step 510, where the host system is notified of the vehicle passenger seat's wetness condition. In response, the host system may at least temporarily remove the vehicle passenger seat from the pool of available seats in the vehicle and accordingly assign and/or reassign the vehicle to the intended occupant. The method then continues to step 512, where the processor determines whether a timer that has been started in response to the indication of a wetness condition in step 506 has elapsed. The timer may be set to a predetermined amount of time that may provide an occupant of the vehicle with sufficient time to remedy a wet condition of the seat and/or a predetermined amount of time within which the blower may be activated to actively dry the vehicle seat. If the processor determines in step 512 that the timer has not elapsed, the method returns to step 512. If the processor determines in step 512 that the timer has elapsed, the method continues to step 514. In step 514, the humidity level sensor senses a humidity level of the vehicle passenger seat, and the method continues to step 516. In step 516, the processor receives the humidity level signal from the humidity level sensor and determines whether the humidity level signal exceeds a predetermined threshold humidity level. If the processor determines in step 516 that the humidity level signal exceeds the predetermined threshold humidity level, the method continues to step 518. In step 518, a fan in the vehicle is activated to initiate a drying process for a wet condition of the vehicle passenger seat, and the method then returns to step 512. However, if in step 516 the processor determines that the humidity level signal from the humidity level sensor does not exceed the predetermined threshold humidity level, the method continues to step 520, where the method continues to step 520. In step 520, the method notifies the host vehicle that the passenger seat is now dry and available for use by the intended occupant. In response, the host computer may then assign and/or reassign the vehicles and vehicle passenger seats in those vehicles based on the newly available dry vehicle passenger seats. The method then continues to step 522, where the method deactivates an indicator in the vehicle that may have indicated a wet condition of a passenger seat of the vehicle. The method then continues to step 524, where the method returns to the beginning of step 502.

The description is merely illustrative in nature and is in no way intended to limit the disclosure, its application, or uses. The broad teachings of the disclosure can be implemented in a variety of forms. Therefore, while this disclosure includes particular examples, the true scope of the disclosure should not be so limited since other modifications will become apparent upon a study of the drawings, the specification, and the following claims.