阅读说明：本技术 五次元测量仪 (Five-dimensional measuring instrument ) 是由 潘晴 于 2020-07-31 设计创作，主要内容包括：本发明涉及测量仪器技术领域,且公开了五次元测量仪,包括五次元测量仪本体,五次元测量仪本体的底端四角处固定连接有支撑机构,五次元测量仪本体的外壁固定连接有放置环,放置环的内壁活动连接有Z形杆,Z形杆的杆壁转动调节有握管,Z形杆的侧壁固定连接有方块,五次元测量仪本体的外壁固定连接有水平泡和L形块。该五次元测量仪,具备能够有效提高五次元测量仪安装的便捷性和效率,省时省力,降低了工作人员安装工作的劳动强度,也能够有效提高五次元测量仪的散热效率,且能够避免五次元测量仪内部精密电子器件被高温损坏,提高了五次元测量仪工作的可靠性,以及能够提高五次元测量仪维护便捷性等优点。(The invention relates to the technical field of measuring instruments and discloses a five-dimensional measuring instrument which comprises a five-dimensional measuring instrument body, wherein a supporting mechanism is fixedly connected at the four corners of the bottom end of the five-dimensional measuring instrument body, a placing ring is fixedly connected to the outer wall of the five-dimensional measuring instrument body, a Z-shaped rod is movably connected to the inner wall of the placing ring, a holding tube is rotatably adjusted on the rod wall of the Z-shaped rod, a square block is fixedly connected to the side wall of the Z-shaped rod, and a horizontal bulb and an L-shaped block are fixedly connected to the outer wall of the five-dimensional measuring. This five-dimensional measuring apparatu possesses convenience and the efficiency that can effectively improve the installation of five-dimensional measuring apparatu, and labour saving and time saving has reduced the intensity of labour of staff's installation work, also can effectively improve the radiating efficiency of five-dimensional measuring apparatu, and can avoid the inside accurate electron device of five-dimensional measuring apparatu to be damaged by high temperature, has improved the reliability of five-dimensional measuring apparatu work to and can improve advantages such as the convenience is maintained to five-dimensional measuring apparatu.)

1. Five dimension unit measuring apparatu, including five dimension unit measuring apparatu bodies (1), its characterized in that: the bottom four corners of the five-dimensional measuring instrument body (1) are fixedly connected with a supporting mechanism (2), the outer wall of the five-dimensional measuring instrument body (1) is fixedly connected with a placing ring (3), the inner wall of the placing ring (3) is movably connected with a Z-shaped rod (4), a holding tube (5) is rotatably adjusted on the rod wall of the Z-shaped rod (4), the side wall of the Z-shaped rod (4) is fixedly connected with a square block (6), the outer wall of the five-dimensional measuring instrument body (1) is fixedly connected with a horizontal bubble (7) and an L-shaped block (11), the outer wall of the L-shaped block (11) is movably connected with the outer wall of the holding tube (5), the outer wall of the five-dimensional measuring instrument body (1) is fixedly connected with a heat dissipation mechanism (8), the outer walls of two sides of the five-dimensional measuring instrument body (1) are respectively provided with a maintenance hole, and the hole wall of the maintenance, the outer wall fixedly connected with of curb plate (10) two symmetric distribution's fixed establishment (9), the stiff end of fixed establishment (9) and the outer wall fixed connection of five dimension measuring apparatu bodies (1).

2. The five-dimensional measuring instrument according to claim 1, wherein: the supporting mechanism (2) comprises a threaded cylinder (21) fixedly connected with the bottom end of the quintuple measuring instrument body (1), a threaded rod (22) is connected to the inner wall of the threaded cylinder (21) in a threaded manner, an L-shaped block (23) is rotatably connected to the bottom end of the threaded rod (22) through a rolling bearing, a conical supporting block (24) is fixedly connected to the lower surface of the L-shaped block (23), a first helical gear (25) is fixedly sleeved on the rod wall of the threaded rod (22), a through hole is formed in the side wall of the L-shaped block (23), a rotating rod (26) is rotatably connected to the hole wall of the through hole through the rolling bearing, a second helical gear (27) is fixedly connected to the side wall of the rotating rod (26), the outer wall of the second helical gear (27) is vertically meshed with the outer wall of the first helical gear (25), and a connecting block (28) is fixedly, the side wall of the connecting block (28) is provided with a groove (29) matched with the square block (6).

3. The five-dimensional measuring instrument according to claim 1, wherein: the heat dissipation mechanism (8) comprises an air box (81) fixedly connected with the outer wall of the five-dimensional measuring instrument body (1), a driving motor (82) is fixedly connected to the lower surface of the inner wall of the air box (81), a supporting rod (83) is fixedly connected to the output end of the driving motor (82), a fan blade (84) is fixedly connected to the top end of the supporting rod (83), the output end of the driving motor (82) is fixedly connected with the outer wall of the air box (81) through a rolling shaft, a fixing hole matched with a rolling bearing is formed in the outer wall of the air box (81), a threaded hole is formed in the outer wall of the bottom end of the air box (81), an outer threaded pipe (85) is connected to the thread hole wall of the threaded hole, a supporting screen plate (86) and an active screen plate (87) are fixedly connected to the inner wall of the outer threaded pipe (85), the outer wall of bellows (81) is fixed the intercommunication have first pipe (89) and second pipe (810), the top of first pipe (89) and the fixed intercommunication of the top outer wall of five dimension unit measuring apparatu body (1), the lateral wall of second pipe (810) and the fixed intercommunication of the bottom outer wall of five dimension unit measuring apparatu body (1).

4. The five-dimensional measuring instrument according to claim 1, wherein: fixed establishment (9) include with curb plate (10) outer wall fixed connection's go-between (91), the inner wall swing joint of go-between (91) has L shape inserted bar (92), spacing ring (93) and spring (94) have been cup jointed in the pole wall activity of L shape inserted bar (92), the lateral wall of spacing ring (93) and the outer wall fixed connection of five-dimensional measuring apparatu body (1), the pole wall fixed connection of L shape inserted bar (92) keeps off ring (95), the outer wall of keeping off ring (95) and the lateral wall fixed connection of spring (94), spring (94) are kept away from the one side of keeping off ring (95) and the outer wall fixed connection of go-between (91).

5. The five-dimensional measuring instrument according to claim 1, wherein: the five-dimensional measuring instrument body (1) comprises a rack, a display, a spectrum confocal measuring instrument, a telecentric lens, a Z-axis moving group, a Z-axis upright post, a horizontal moving group, a workbench and an emergency stop button.

6. The five-dimensional measuring instrument according to claim 3, wherein: the outer wall fixedly connected with of external screw thread pipe (85) is solid fixed ring (12), the lateral wall fixedly connected with sealing washer (13) of solid fixed ring (12).

7. The five-dimensional measuring instrument according to claim 1, wherein: the outer walls of two sides of the five-dimensional measuring instrument body (1) are provided with a plurality of rectangular heat dissipation holes, and the hole walls of the rectangular heat dissipation holes are fixedly connected with dust screens (14).

Technical Field

The invention relates to the technical field of measuring instruments, in particular to a five-dimensional measuring instrument.

Background

The five-dimensional measuring instrument is a high-precision measuring instrument integrating optics, precision machinery, electronics and computer into one body and used for measuring three-dimensional geometric dimension and form and position tolerance, and is an image amplification measuring system which utilizes telecentric lens and colour CCD area array chip to amplify the measured workpiece by means of contour backlight irradiation or surface light irradiation and make it be imaged on the display, and utilizes the professional measuring software to make image data processing of precision optical transmission data and real-time image picture, and utilizes the mouse or keyboard to make measurement setting on the computer to implement automatic detection, and said five-dimensional measuring instrument mainly includes supporting portion, image portion, motion portion, lighting portion and spectrum confocal measuring portion, and can be extensively used in the fields of mould and precision machinery manufacture, such as digital control blade, stamping workpiece, powder metal and precision machine processing component, the electronic manufacturing industry comprises touch screens, mobile phone and computer mainboards, batteries, connectors and the like, and the special material industry comprises magnetic materials, ceramic substrates and the like.

The existing five-dimensional measuring instrument is usually required to be difficultly leveled due to uneven ground during installation, so that the equipment installation process is complicated and inconvenient, the installation efficiency is low, the labor intensity of workers is increased, the heat dissipation efficiency of the existing five-dimensional measuring instrument is low, internal precise electronic devices are easily damaged due to high temperature, the five-dimensional measuring instrument cannot be normally used, and the working reliability of the five-dimensional measuring instrument is influenced.

Disclosure of Invention

Technical problem to be solved

Aiming at the defects of the prior art, the invention provides the five-dimensional measuring instrument, which can effectively improve the installation convenience and efficiency of the five-dimensional measuring instrument, save time and labor, reduce the labor intensity of installation work of workers, also can effectively improve the heat dissipation efficiency of the five-dimensional measuring instrument, and can prevent the precise electronic devices in the five-dimensional measuring instrument from being damaged by high temperature, improve the working reliability of the five-dimensional measuring instrument, and can improve the maintenance convenience of the five-dimensional measuring instrument, solves the problems of complicated and inconvenient installation process and low installation efficiency of the five-dimensional measuring instrument, meanwhile, the labor intensity of workers is increased, the heat dissipation efficiency of the conventional five-dimensional measuring instrument is low, and the problem that the working reliability of the five-dimensional measuring instrument is influenced due to the fact that the internal precise electronic device of the five-dimensional measuring instrument is damaged due to high temperature and the normal use of the five-dimensional measuring instrument is caused easily is solved.

(II) technical scheme

In order to achieve the purposes of effectively improving the convenience and efficiency of installation of the five-dimensional measuring instrument, saving time and labor, reducing the labor intensity of installation work of workers, effectively improving the heat dissipation efficiency of the five-dimensional measuring instrument, avoiding the damage of a precise electronic device in the five-dimensional measuring instrument by high temperature, improving the reliability of the work of the five-dimensional measuring instrument and improving the maintenance convenience of the five-dimensional measuring instrument, the invention provides the following technical scheme: the five-dimensional measuring instrument comprises a five-dimensional measuring instrument body, wherein the four corners at the bottom end of the five-dimensional measuring instrument body are fixedly connected with a supporting mechanism, the outer wall of the five-dimensional measuring instrument body is fixedly connected with a placing ring, the inner wall of the placing ring is movably connected with a Z-shaped rod, the rod wall of the Z-shaped rod is rotationally adjusted with a holding tube, the side wall of the Z-shaped rod is fixedly connected with a square block, the outer wall of the five-dimensional measuring instrument body is fixedly connected with a horizontal bubble and an L-shaped block, the outer wall of the L-shaped block is movably connected with the outer wall of the holding tube, the outer wall of the five-dimensional measuring instrument body is fixedly connected with a heat dissipation mechanism, the outer walls of the two sides of the five-dimensional measuring instrument body are both provided with maintenance holes, and the pore wall of maintenance hole has the curb plate through the hinge is articulated, the outer wall fixedly connected with two symmetric distribution's of curb plate fixed establishment, fixed end and the outer wall fixed connection of five-dimensional measuring apparatu body of fixed establishment.

Preferably, the supporting mechanism includes the screw thread section of thick bamboo with five dimension measuring apparatu body bottom fixed connection, the inner wall threaded connection of screw thread section of thick bamboo has the threaded rod, the bottom of threaded rod rotates through antifriction bearing and is connected with the L-shaped piece, the lower fixed surface of L-shaped piece is connected with the toper supporting shoe, the fixed cover of the pole wall of threaded rod has connect first helical gear, the through-hole has been seted up to the lateral wall of L-shaped piece, and the pore wall of through-hole rotates through antifriction bearing and is connected with the bull stick, the lateral wall fixedly connected with second helical gear of bull stick, the outer wall of second helical gear meshes with the outer wall of first helical gear is perpendicular, one side fixedly connected with connecting block that the second helical gear was kept away from to the.

Preferably, the heat dissipation mechanism comprises an air box fixedly connected with the outer wall of the five-dimensional measuring instrument body, a driving motor is fixedly connected to the lower surface of the inner wall of the air box, a support rod is fixedly connected to the output end of the driving motor, fan blades are fixedly connected to the top end of the support rod, the output end of the driving motor is fixedly connected to the outer wall of the air box through a rolling shaft, a fixing hole matched with a rolling bearing is formed in the outer wall of the air box, a threaded hole is formed in the outer wall of the bottom end of the air box, an external threaded pipe is connected to the hole wall of the threaded hole in a threaded manner, a support screen plate and an active carbon screen plate are fixedly connected to the inner wall of the external threaded pipe, a non-woven fabric filter layer is fixedly connected to the outer wall of the support screen plate, a first guide pipe and, and the side wall of the second conduit is fixedly communicated with the outer wall of the bottom end of the five-dimensional measuring instrument body.

Preferably, the fixing mechanism comprises a connecting ring fixedly connected with the outer wall of the side plate, the inner wall of the connecting ring is movably connected with an L-shaped inserting rod, a limiting ring and a spring are movably sleeved on the rod wall of the L-shaped inserting rod, the side wall of the limiting ring is fixedly connected with the outer wall of the quintuple measuring instrument body, a blocking ring is fixedly connected with the rod wall of the L-shaped inserting rod, the outer wall of the blocking ring is fixedly connected with the side wall of the spring, and one side, away from the blocking ring, of the spring is fixedly connected with the outer wall of the connecting ring.

Preferably, the five-dimensional measuring instrument body comprises a rack, a display, a spectrum confocal measuring instrument, a telecentric lens, a Z-axis moving group, a Z-axis upright post, a horizontal moving group, a workbench and an emergency stop button.

Preferably, the outer wall fixedly connected with solid fixed ring of external screw thread pipe, gu fixed ring's lateral wall fixedly connected with sealing washer.

Preferably, a plurality of rectangular heat dissipation holes are formed in the outer walls of the two sides of the five-dimensional measuring instrument body, and the hole walls of the rectangular heat dissipation holes are fixedly connected with dust screens.

(III) advantageous effects

Compared with the prior art, the invention provides a five-dimensional measuring instrument, which has the following beneficial effects:

1. this five-dimensional measuring apparatu, through being provided with supporting mechanism, square hole and Z shape pole, when the five-dimensional measuring apparatu levels inadequately, at first remove the five-dimensional measuring apparatu body to the mounted position on, later take out the Z shape pole, make the Z shape pole rotate through the grip tube after that, the Z shape pole drives the square and rotates, the square makes the bull stick rotate through connecting block and recess, the bull stick makes the threaded rod rotate through first helical gear and second helical gear, the threaded rod reciprocates the regulation in the screw thread section of thick bamboo, join in marriage and the level bubble staff can make the five-dimensional measuring apparatu body fast and make level, time and labor saving, the convenience and the efficiency of five-dimensional measuring apparatu installation can effectively be improved to this mechanism, time and labor saving, the labor intensity of staff installation five-dimensional measuring apparatu has been reduced.

2. The five-dimensional measuring instrument is provided with the driving motor, the supporting rod and the fan blades, when the five-dimensional measuring instrument body works, the driving motor is started firstly, the driving motor enables the fan blades to rotate through the supporting rod, the fan blades convey air in the air box to each part of the five-dimensional measuring instrument through the first guide pipe and the second guide pipe, so that the air flow in the air box is accelerated, the air carrying internal heat is quickly discharged, the heat dissipation speed of the five-dimensional measuring instrument is accelerated, the air box forms a negative pressure environment after the air is discharged, meanwhile, air supplement is carried out through the external threaded pipe, when the air enters the air box from the outside, the air is filtered by the non-woven fabric filter layer and the activated carbon mesh plate, the cleanness of the air is guaranteed, in addition, the side plates can be conveniently opened through the fixing mechanism, the maintenance space of the five-dimensional measuring instrument is enlarged, the maintenance of the five-dimensional measuring instrument is more, and the precise electronic device in the five-dimensional measuring instrument can be prevented from being damaged by high temperature, the working reliability of the five-dimensional measuring instrument is improved, and the maintenance convenience of the five-dimensional measuring instrument can be improved.

Drawings

Fig. 1 is a schematic structural diagram of a five-dimensional measuring instrument according to the present invention;

FIG. 2 is a schematic side view of a five-dimensional measuring instrument according to the present invention;

FIG. 3 is an enlarged view of the portion A in FIG. 1;

FIG. 4 is an enlarged view of the structure of portion B of FIG. 2;

fig. 5 is an enlarged view of a structure of a portion C in fig. 2.

In the figure: the measuring instrument comprises a 1 quintuple measuring instrument body, a 2 supporting mechanism, a 21 threaded cylinder, a 22 threaded rod, a 23L-shaped block, a 24 conical supporting block, a 25 first helical gear, a 26 rotating rod, a 27 second helical gear, a 28 connecting block, a 29 groove, a 3 placing ring, a 4Z-shaped rod, a 5 holding tube, a 6 square block, a 7 horizontal bubble, an 8 heat dissipation mechanism, an 81 air box, a 82 driving motor, an 83 supporting rod, 84 fan blades, an 85 external threaded tube, a 86 supporting screen plate, a 87 activated carbon screen plate, an 88 non-woven fabric filtering layer, a 89 first conduit, a 810 second conduit, a 9 fixing mechanism, a 91 connecting ring, a 92L-shaped inserted rod, a 93 limiting ring, a 94 spring, a 95 retaining ring, a 10 side plate, a 11L-shaped block, a 12 fixing.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-5, a five-dimensional element measuring instrument comprises a five-dimensional element measuring instrument body 1, a supporting mechanism 2 is fixedly connected to the four corners of the bottom end of the five-dimensional element measuring instrument body 1, a placing ring 3 is fixedly connected to the outer wall of the five-dimensional element measuring instrument body 1, a Z-shaped rod 4 is movably connected to the inner wall of the placing ring 3, a holding tube 5 is rotatably adjusted on the rod wall of the Z-shaped rod 4, a square block 6 is fixedly connected to the side wall of the Z-shaped rod 4, a horizontal bubble 7 and an L-shaped block 11 are fixedly connected to the outer wall of the five-dimensional element measuring instrument body 1, the outer wall of the L-shaped block 11 is movably connected to the outer wall of the holding tube 5, a heat dissipation mechanism 8 is fixedly connected to the outer wall of the five-dimensional element measuring instrument body 1, maintenance holes are formed in the outer walls of the two sides of the five-dimensional element measuring instrument, the fixed end of the fixing mechanism 9 is fixedly connected with the outer wall of the five-dimensional measuring instrument body 1.

The supporting mechanism 2 comprises a threaded cylinder 21 fixedly connected with the bottom end of the quintuple measuring instrument body 1, a threaded rod 22 is in threaded connection with the inner wall of the threaded cylinder 21, the bottom end of the threaded rod 22 is rotatably connected with an L-shaped block 23 through a rolling bearing, a conical supporting block 24 is fixedly connected with the lower surface of the L-shaped block 23, a first helical gear 25 is fixedly sleeved on the rod wall of the threaded rod 22, a through hole is formed in the side wall of the L-shaped block 23, the hole wall of the through hole is rotatably connected with a rotating rod 26 through the rolling bearing, a second helical gear 27 is fixedly connected with the side wall of the rotating rod 26, the outer wall of the second helical gear 27 is vertically meshed with the outer wall of the first helical gear 25, a connecting block 28 is fixedly connected with one side of the rotating rod 26 away from the second helical gear 27, a groove 29 matched with a, the labor intensity of workers for installing the five-dimensional measuring instrument is reduced.

The heat dissipation mechanism 8 comprises an air box 81 fixedly connected with the outer wall of the five-dimensional measuring instrument body 1, the lower surface of the inner wall of the air box 81 is fixedly connected with a driving motor 82, the output end of the driving motor 82 is fixedly connected with a support rod 83, the top end of the support rod 83 is fixedly connected with a fan blade 84, the output end of the driving motor 82 is fixedly connected with the outer wall of the air box 81 through a rolling shaft, the outer wall of the air box 81 is provided with a fixing hole matched with a rolling bearing, the outer wall of the bottom end of the air box 81 is provided with a threaded hole, the hole wall of the threaded hole is in threaded connection with an external threaded pipe 85, the inner wall of the external threaded pipe 85 is fixedly connected with a support screen plate 86 and an active carbon screen plate 87, the outer wall of the support screen plate 86 is fixedly connected with a non-woven fabric filter layer 88, the side wall of the second guide tube 810 is fixedly communicated with the outer wall of the bottom end of the five-dimensional measuring instrument body 1, the heat dissipation efficiency of the five-dimensional measuring instrument can be effectively improved through the mechanism, the precise electronic devices in the five-dimensional measuring instrument can be prevented from being damaged by high temperature, and the working reliability of the five-dimensional measuring instrument is improved.

Fixing mechanism 9 includes the go-between 91 with curb plate 10 outer wall fixed connection, the inner wall swing joint of go-between 91 has L shape inserted bar 92, spacing ring 93 and spring 94 have been cup jointed in the pole wall activity of L shape inserted bar 92, the lateral wall of spacing ring 93 and the outer wall fixed connection of five-dimensional measuring apparatu body 1, the pole wall fixed connection of L shape inserted bar 92 keeps off ring 95, the outer wall of keeping off ring 95 and the lateral wall fixed connection of spring 94, one side that spring 94 kept away from and kept off ring 95 and the outer wall fixed connection of go-between 91, can be convenient for open curb plate 10 through fixing mechanism 9, the maintenance space of five-dimensional measuring apparatu has been enlarged, it is more convenient to make the maintenance of five-dimensional measuring apparatu.

Five dimension measuring apparatu bodies 1 includes frame, display, spectrum confocal measuring apparatu, telecentric lens, Z axle removes group, Z axle stand, horizontal migration group, workstation and scram button, and above-mentioned part is prior art, can directly purchase on the market, no longer gives unnecessary details here.

The outer wall of the external thread pipe 85 is fixedly connected with a fixing ring 12, the side wall of the fixing ring 12 is fixedly connected with a sealing ring 13, and the sealing performance of the connection of the external thread pipe 85 is partially increased by the sealing ring 13.

The outer walls of two sides of the five-dimensional measuring instrument body 1 are provided with a plurality of rectangular heat dissipation holes, the hole walls of the rectangular heat dissipation holes are fixedly connected with dust screens 14, and the dust screens 14 can prevent dust from entering the interior of the five-dimensional measuring instrument body 1 and enable the interior of the five-dimensional measuring instrument body to be clean.

In summary, when the five-dimensional measuring instrument is not smooth enough, the body 1 of the five-dimensional measuring instrument is moved to the installation position, the Z-shaped rod 4 is drawn out, the Z-shaped rod 4 is rotated by the holding tube 5, the Z-shaped rod 4 drives the square block 6 to rotate, the square block 6 rotates the rotating rod 26 through the connecting block 28 and the groove 29, the rotating rod 26 rotates the threaded rod 22 through the first helical gear 25 and the second helical gear 27, the threaded rod 22 moves up and down in the threaded cylinder 21 for adjustment, and the matching and leveling bulb 7 enables the body 1 of the five-dimensional measuring instrument to be leveled quickly, so that time and labor are saved, the mechanism can effectively improve the installation convenience and efficiency of the five-dimensional measuring instrument, save time and labor, reduce the labor intensity of the worker for installing the five-dimensional measuring instrument, when the body 1 of the five-dimensional measuring instrument works, the driving motor 82 is started first, the driving motor 82 rotates the fan blade 84 through the supporting rod 83, the fan blade 84 conveys air in the air box 81 to each part of the five-dimensional measuring instrument through the first guide pipe 89 and the second guide pipe 810, so that the air flow in the air box is accelerated, the air carrying internal heat is quickly discharged, the heat dissipation speed of the five-dimensional measuring instrument is accelerated, the air box 81 forms a negative pressure environment after the air is discharged, meanwhile, air is supplemented through the external thread pipe 85, the air is filtered by the non-woven fabric filter layer 88 and the activated carbon screen 87 when the air enters the air box 81 from the outside, the cleanness of the air is guaranteed, in addition, the side plate 10 can be conveniently opened through the fixing mechanism 9, the maintenance space of the five-dimensional measuring instrument is enlarged, the maintenance of the five-dimensional measuring instrument is more convenient, the mechanism can effectively improve the heat dissipation efficiency of the five-dimensional measuring instrument, and can avoid the precise electronic devices in, the reliability of the five-dimensional measuring instrument is improved, and the convenience of maintenance of the five-dimensional measuring instrument can be improved.

It is to be noted that the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.