阅读说明：本技术 粉末集料清洁缩分一体机 (Powder aggregate cleaning and dividing integrated machine ) 是由 李晓龙 王丽娟 尤子敬 房鑫 吴丹 张凯江 吴欣欣 杨昆澍 于 2021-07-12 设计创作，主要内容包括：本发明涉及一体机技术领域,且公开了粉末集料清洁缩分一体机,包括导料筒,所述导料筒的外侧固定连接有三个固定件,所述固定件的内侧活动连接有卡件,所述导料筒的顶部活动连接有导料盖,所述导料盖的顶部固定安装有活塞阀门,所述活塞阀门的左侧固定安装有气缸,所述导料盖的左侧固定连接有吸料管,所述导料筒的右侧固定连接有负压吸气管,所述导料盖的底部固定连接有二号过滤网,所述导料筒的底部固定连接有集料筒,所述集料筒的外侧固定连接有三个连接件。该粉末集料清洁缩分一体机,能够自动进行密封,同时能够提高粉末过滤杂质的效率和提高粉末的质量,并且能够进行自动下料缩分和清理内部残留的杂质。(The invention relates to the technical field of all-in-one machines, and discloses a powder aggregate cleaning and dividing all-in-one machine which comprises a material guide cylinder, wherein three fixing pieces are fixedly connected to the outer side of the material guide cylinder, a clamping piece is movably connected to the inner side of each fixing piece, a material guide cover is movably connected to the top of the material guide cylinder, a piston valve is fixedly installed at the top of the material guide cover, an air cylinder is fixedly installed on the left side of the piston valve, a material suction pipe is fixedly connected to the left side of the material guide cover, a negative pressure air suction pipe is fixedly connected to the right side of the material guide cylinder, a second filter screen is fixedly connected to the bottom of the material guide cover, a material collecting cylinder is fixedly connected to the bottom of the material guide cylinder, and three connecting pieces are fixedly connected to the outer side of the material collecting cylinder. This clean division all-in-one that gathers materials of powder can seal automatically, can improve the powder simultaneously and filter impurity's efficiency and improve the quality of powder to can carry out automatic unloading division and clear up inside remaining impurity.)

1. Powder gathers materials clean division all-in-one, including guide cylinder (1), its characterized in that: the material guide device is characterized in that three fixing parts (2) are fixedly connected to the outer side of the material guide cylinder (1), a clamping part (3) is movably connected to the inner side of the fixing part (2), a material guide cover (4) is movably connected to the top of the material guide cylinder (1), a piston valve (5) is fixedly mounted at the top of the material guide cover (4), an air cylinder (6) is fixedly mounted at the left side of the piston valve (5), a material suction pipe (7) is fixedly connected to the left side of the material guide cover (4), a negative pressure air suction pipe (8) is fixedly connected to the right side of the material guide cylinder (1), a second filter screen (30) is fixedly connected to the bottom of the material guide cover (4), a material collecting cylinder (9) is fixedly connected to the bottom of the material guide cylinder (1), three connecting parts (10) are fixedly connected to the outer side of the material collecting cylinder (9), and a support frame (11) is sleeved on the inner side of each connecting part (10), the top of the connecting piece (10) is in threaded connection with a first threaded bolt (17), the outside bottom of the support frame (11) is fixedly connected with a fixing piece (12), the bottom of the fixing piece (12) is fixedly connected with a universal wheel (13), the bottom of the fixing piece (12) is fixedly connected with a nut (15), the inner side of the nut (15) is in threaded connection with a fixing rod (14), the bottom of the fixing rod (14) is fixedly connected with a cushion block (16), the bottom of the material collecting barrel (9) is fixedly connected with a gravity barrel (18), the left side of the gravity barrel (18) is fixedly provided with an automatic switch (19), the bottom of the gravity barrel (18) is movably connected with a contracting and separating barrel (20), a second threaded bolt (21) which is arranged at equal intervals is in threaded connection between the gravity barrel (18) and the contracting and separating barrel (20), and the inner side of the contracting and separating barrel (20) is fixedly connected with a guide pipe (22), the inboard joint of honeycomb duct (22) has filter screen (23) No. one, the big volume of bottom fixedly connected with play appearance pipe (24) of a shrinkage and separation section of thick bamboo (20), the bottom fixedly connected with experiment sample tube (25) of a shrinkage and separation section of thick bamboo (20), it is positive back fixedly connected with backup pad (26) of support frame (11), the bottom fixedly connected with strengthening rib (27) of backup pad (26), the top swing joint of backup pad (26) connects an appearance section of thick bamboo (28), the back fixedly connected with outlet duct (29) of a gravity section of thick bamboo (18).

2. The integrated machine for cleaning and dividing powdered aggregate according to claim 1, characterized in that: the diameter of the guide cover (4) is larger than that of the guide cylinder (1), and the guide cover (4) is clamped with the guide cylinder (1) through the clamping piece (3).

3. The integrated machine for cleaning and dividing powdered aggregate according to claim 1, characterized in that: the right end of the material suction pipe (7) penetrates through the material guide cover (4) and extends to the inner side of the second filter screen (30), and the three fixing pieces (2) are arranged at equal intervals.

4. The integrated machine for cleaning and dividing powdered aggregate according to claim 1, characterized in that: the left end of the negative pressure air suction pipe (8) penetrates through the material guide cylinder (1) and extends to the inner side of the negative pressure air suction pipe (8), and the diameter of the material guide cylinder (1) is smaller than that of the material collecting cylinder (9).

5. The integrated machine for cleaning and dividing powdered aggregate according to claim 1, characterized in that: the three connecting pieces (10) are arranged at equal intervals, and the bottom ends of the first threaded bolts (17) sequentially penetrate through the connecting pieces (10) and the support frame (11) and extend to the inner side of the support frame (11).

6. The integrated machine for cleaning and dividing powdered aggregate according to claim 1, characterized in that: the diameter of a gravity section of thick bamboo (18) equals with the diameter of dividing a section of thick bamboo (20), the bottom of dividing a section of thick bamboo (20) is hourglass hopper-shaped, No. two screw bolts (21) are the equidistance and arrange the distribution.

7. The integrated machine for cleaning and dividing powdered aggregate according to claim 1, characterized in that: honeycomb duct (22) are hourglass hopper-shaped, the maximum diameter of honeycomb duct (22) equals with the internal diameter of dividing a section of thick bamboo (20), filter screen (23) are hourglass hopper-shaped.

8. The integrated machine for cleaning and dividing powdered aggregate according to claim 1, characterized in that: two ends of the reinforcing rib (27) are respectively fixedly connected with the bottom of the supporting plate (26) and the back of the front supporting frame (11), and the sample receiving cylinder (28) is positioned below the experimental sample tube (25).

9. The integrated machine for cleaning and dividing powdered aggregate according to claim 1, characterized in that: both ends of the fixing rod (14) are in threaded connection with nuts (15), and the bottom end of the air outlet pipe (29) penetrates through the gravity cylinder (18) and extends to the inner side of the gravity cylinder (18).

Technical Field

The invention relates to the technical field of all-in-one machines, in particular to a powder aggregate cleaning and dividing all-in-one machine.

Background

The purpose of powder division is to reduce the workload of subsequent crushing or the transportation amount of an original sample and accelerate the processing speed of the sample on the premise of ensuring the reliability of the sample, wherein the sample needs to be fully and uniformly mixed before each division of the sample, and the weight of the sample obtained after the division needs to be larger than the minimum reliable weight of the sample required under the condition of the particle diameter at that time.

Chinese patent CN 109647768B proposes a glass powder cleaning and dewatering integrated machine, which can effectively clean and dewater powder, but the powder needs to be poured manually during feeding, and meanwhile, a material inlet cannot be sealed automatically, and the powder is not filtered when entering, so that the powder carries impurities with the same size to be mixed inside, and thus, the problem of the sample during discharging is caused, the product quality is reduced, meanwhile, the whole processing time is prolonged after the powder is dried after contacting water, and the powder is difficult to clean due to the water, so that the impurities can be remained inside the device, and the powder aggregate cleaning and dividing integrated machine is proposed.

Disclosure of Invention

Technical problem to be solved

Aiming at the defects of the prior art, the invention provides a powder aggregate cleaning and dividing all-in-one machine which has the advantages of automatic sealing, impurity filtering efficiency, automatic blanking and dividing, screen mesh cleaning and the like, and solves the problems that when the existing glass powder cleaning and dewatering all-in-one machine is used, automatic sealing cannot be realized, powder cannot be filtered, the product quality is reduced, the whole processing time is prolonged due to the fact that the powder is dried in contact with water, and meanwhile, the powder is difficult to clean when the powder is in contact with water.

(II) technical scheme

In order to realize the purposes of automatically sealing, filtering impurities and simultaneously automatically discharging, dividing and cleaning the screen, the invention provides the following technical scheme: the powder collecting, cleaning and dividing integrated machine comprises a material guide cylinder, wherein three fixing parts are fixedly connected to the outer side of the material guide cylinder, a clamping part is movably connected to the inner side of each fixing part, a material guide cover is movably connected to the top of the material guide cylinder, a piston valve is fixedly mounted at the top of the material guide cover, an air cylinder is fixedly mounted at the left side of the piston valve, a material suction pipe is fixedly connected to the left side of the material guide cover, a negative pressure air suction pipe is fixedly connected to the right side of the material guide cylinder, a second filter screen is fixedly connected to the bottom of the material guide cover, a material collecting cylinder is fixedly connected to the bottom of the material guide cylinder, three connecting pieces are fixedly connected to the outer side of the material collecting cylinder, a support frame is sleeved on the inner side of each connecting piece, a first threaded bolt is connected to the top of each connecting piece, a fixing piece is fixedly connected to the bottom of the outer side of the support frame, and a universal wheel is fixedly connected to the bottom of the fixing piece, the bottom of the fixing piece is fixedly connected with a nut, the inner side of the nut is in threaded connection with a fixing rod, the bottom of the fixed rod is fixedly connected with a cushion block, the bottom of the material collecting barrel is fixedly connected with a gravity barrel, an automatic switch is fixedly arranged on the left side of the gravity cylinder, a contraction cylinder is movably connected with the bottom of the gravity cylinder, a second threaded bolt which is arranged at equal intervals is in threaded connection between the gravity cylinder and the division cylinder, a guide pipe is fixedly connected at the inner side of the division cylinder, the inner side of the flow guide pipe is clamped with a first filter screen, the bottom of the contraction and separation cylinder is fixedly connected with a large number of sample outlet pipes, the bottom of the dividing cylinder is fixedly connected with an experimental sample tube, the back of the supporting frame on the front side is fixedly connected with a supporting plate, the bottom fixedly connected with strengthening rib of backup pad, the top swing joint of backup pad has connects a kind section of thick bamboo, the back fixedly connected with outlet duct of a gravity section of thick bamboo.

Preferably, the diameter of the guide cover is larger than that of the guide cylinder, and the guide cover is clamped with the guide cylinder through a clamping piece.

Preferably, the right end of the material suction pipe penetrates through the material guide cover and extends to the inner side of the second filter screen, and the three fixing pieces are arranged at equal intervals.

Preferably, the left end of the negative pressure suction pipe penetrates through the material guide cylinder and extends to the inner side of the negative pressure suction pipe, and the diameter of the material guide cylinder is smaller than that of the material collecting cylinder.

Preferably, the three connecting pieces are arranged at equal intervals, and the bottom end of the first threaded bolt sequentially penetrates through the connecting pieces and the support frame and extends to the inner side of the support frame.

Preferably, the diameter of a gravity section of thick bamboo equals with the diameter of a division section of thick bamboo, the bottom of a division section of thick bamboo is hourglass hopper-shaped, No. two threaded bolts are the equidistance and arrange the distribution.

Preferably, the honeycomb duct is hourglass hopper-shaped, the maximum diameter of honeycomb duct equals with the internal diameter of dividing a section of thick bamboo, a filter screen is hourglass hopper-shaped.

Preferably, the two ends of the reinforcing rib are respectively and fixedly connected with the bottom of the supporting plate and the back of the front supporting frame, and the sample receiving cylinder is located below the experimental sample tube.

Preferably, the two ends of the fixing rod are both in threaded connection with nuts, and the bottom end of the air outlet pipe penetrates through the gravity cylinder and extends to the inner side of the gravity cylinder.

(III) advantageous effects

Compared with the prior art, the invention provides a powder aggregate cleaning and dividing all-in-one machine, which has the following beneficial effects:

1. this clean division all-in-one of powder collection material, through the support frame, the cooperation of connecting piece and a screw bolt, it pushes away to suitable position through the universal wheel with equipment, through the nut, dead lever and cushion carry out the antiskid to equipment fixed, cooperation through mounting and fastener is fixed with guide cylinder and guide lid, it is leading-in from inhaling the material pipe with the powder, then produce the negative pressure to inside through the negative pressure breathing pipe, let the powder carry out once through No. two filter screens from the centre and filter and enter into the guide cylinder, then start piston valve and cylinder, cooperation through piston valve and cylinder, the cylinder admits air the back, powder water is automatic to drop, make the powder enter into the collection feed cylinder, then the powder utilizes the action of gravity to make the automatic switch operation, thereby make the powder fall the inside of dividing the section of thick bamboo.

2. This clean division all-in-one that gathers materials of powder, carry out the secondary filter with the powder through the cooperation of honeycomb duct and filter screen No. one, then discharge through a large amount of appearance pipes and experiment sample cell, under the supporting role of backup pad and strengthening rib, it connects the appearance section of thick bamboo to be located experiment sample cell below and connects the material, can accomplish whole production, No. one filter screen next door is provided with high frequency solenoid valve when cleaning, high frequency solenoid valve blowout is gaseous, thereby strike a filter screen, can clean impurity to the inner wall of a filter screen and a division section of thick bamboo, this clean division all-in-one that gathers materials of powder, can seal automatically, can improve the efficiency that powder filtered impurity simultaneously and the quality that improves the powder, and can carry out automatic unloading division and clear up inside remaining impurity.

Drawings

FIG. 1 is a schematic structural view of a powder aggregate cleaning and dividing integrated machine provided by the invention;

FIG. 2 is a left side view of the structure of the powder aggregate cleaning and dividing all-in-one machine provided by the invention;

fig. 3 is a left side sectional view of a powder aggregate cleaning and dividing all-in-one machine structure provided by the invention.

In the figure: the device comprises a material guide cylinder 1, a fixing part 2, a clamping part 3, a material guide cover 4, a piston valve 5, a cylinder 6, a material suction pipe 7, a negative pressure air suction pipe 8, a material collecting cylinder 9, a connecting part 10, a support frame 11, a fixing piece 12, a universal wheel 13, a fixing rod 14, a nut 15, a cushion block 16, a threaded bolt 17, a gravity cylinder 18, an automatic switch 19, a shrinkage cylinder 20, a threaded bolt 21 II, a flow guide pipe 22, a filter screen 23I, a large number of sample outlet pipes 24, an experiment sample pipe 25, a support plate 26, a reinforcing rib 27, a sample receiving cylinder 28, an air outlet pipe 29 and a filter screen 30 II.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the 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. 1-3, the powder aggregate cleaning and dividing integrated machine comprises a material guide cylinder 1, three fixing members 2 fixedly connected to the outer side of the material guide cylinder 1, a clamping member 3 movably connected to the inner side of the fixing member 2, a material guide cover 4 movably connected to the top of the material guide cylinder 1, a piston valve 5 fixedly mounted on the top of the material guide cover 4, an air cylinder 6 fixedly mounted on the left side of the piston valve 5, a material suction pipe 7 fixedly connected to the left side of the material guide cover 4, a negative pressure air suction pipe 8 fixedly connected to the right side of the material guide cylinder 1, a second filter screen 30 fixedly connected to the bottom of the material guide cover 4, a material collecting cylinder 9 fixedly connected to the bottom of the material guide cylinder 1, three connecting members 10 fixedly connected to the outer side of the material collecting cylinder 9, a support frame 11 sleeved on the inner side of the connecting members 10, a first threaded bolt 17 threadedly connected to the top of the connecting members 10, a fixing plate 12 fixedly connected to the outer bottom of the support frame 11, the bottom of the fixing piece 12 is fixedly connected with a universal wheel 13, the bottom of the fixing piece 12 is fixedly connected with a nut 15, the inner side of the nut 15 is in threaded connection with a fixing rod 14, the bottom of the fixing rod 14 is fixedly connected with a cushion block 16, the bottom of the material collecting cylinder 9 is fixedly connected with a gravity cylinder 18, the left side of the gravity cylinder 18 is fixedly provided with an automatic switch 19, the bottom of the gravity cylinder 18 is movably connected with a contracting cylinder 20, a second threaded bolt 21 which is arranged at equal intervals is in threaded connection between the gravity cylinder 18 and the contracting cylinder 20, the inner side of the contracting cylinder 20 is fixedly connected with a draft tube 22, the inner side of the draft tube 22 is clamped with a first filter screen 23, a high-frequency electromagnetic valve is arranged beside the first filter screen 23, the bottom of the contracting cylinder 20 is fixedly connected with a large-amount sample outlet tube 24, the bottom of the contracting cylinder 20 is fixedly connected with an experimental sample tube 25, the back of the front support frame 11 is fixedly connected with a support plate 26, and the bottom of the support plate 26 is fixedly connected with a reinforcing rib 27, the top of the supporting plate 26 is movably connected with a sample receiving cylinder 28, the back of the gravity cylinder 18 is fixedly connected with an air outlet pipe 29, the equipment is pushed to a proper position through a universal wheel 13 by matching of a supporting frame 11, a connecting piece 10 and a first threaded bolt 17, the equipment is fixed in an anti-skidding way through a nut 15, a fixing rod 14 and a cushion block 16, a guide cylinder 1 and a guide cover 4 are fixed by matching of a fixing piece 2 and a clamping piece 3, powder is led in from a material suction pipe 7, negative pressure is generated inside the powder through a negative pressure air suction pipe 8, the powder is filtered once from the middle through a second filter screen 30 and enters the guide cylinder 1, then a piston valve 5 and an air cylinder 6 are started, after air enters the air cylinder 6 through matching of the piston valve 5 and the air cylinder 6, powder water automatically drops, the powder enters a material collecting cylinder 9, and then the powder utilizes the action of gravity to enable an automatic switch 19 to operate, thereby make the powder fall to the inside of dividing a section of thick bamboo 20, carry out the secondary filter with the powder through honeycomb duct 22 and the cooperation of a filter screen 23, then discharge through a large amount of appearance pipes 24 and experiment sample tube 25, under the supporting role of backup pad 26 and strengthening rib 27, connect appearance section of thick bamboo 28 to be located experiment sample tube 25 below and connect the material, can accomplish whole production, be provided with high frequency solenoid valve when cleaning a filter screen 23 next door, high frequency solenoid valve blowout gas, thereby strike a filter screen 23, can clean impurity to the inner wall of a filter screen 23 and dividing a section of thick bamboo 20, this clean division all-in-one that gathers materials of powder, can seal automatically, can improve the efficiency that powder filtered impurity simultaneously and the quality that improves the powder, and can carry out automatic unloading division and clear up inside remaining impurity.

In the invention, the diameter of the material guide cover 4 is larger than that of the material guide cylinder 1, and the material guide cover 4 is clamped with the material guide cylinder 1 through the clamping piece 3.

In the invention, the right end of the material suction pipe 7 penetrates through the material guide cover 4 and extends to the inner side of the second filter screen 30, and the three fixing pieces 2 are arranged at equal intervals.

In the invention, the left end of the negative pressure air suction pipe 8 penetrates through the material guide cylinder 1 and extends to the inner side of the negative pressure air suction pipe 8, and the diameter of the material guide cylinder 1 is smaller than that of the material collecting cylinder 9.

In the invention, the three connecting pieces 10 are arranged at equal intervals, and the bottom end of the first threaded bolt 17 penetrates through the connecting pieces 10 and the support frame 11 in sequence and extends to the inner side of the support frame 11.

In the invention, the diameter of the gravity cylinder 18 is equal to that of the reduction cylinder 20, the bottom of the reduction cylinder 20 is funnel-shaped, and the second threaded bolts 21 are arranged at equal intervals.

In the invention, the draft tube 22 is funnel-shaped, the maximum diameter of the draft tube 22 is equal to the inner diameter of the dividing cylinder 20, and the first filter screen 23 is funnel-shaped.

In the invention, two ends of the reinforcing rib 27 are respectively and fixedly connected with the bottom of the supporting plate 26 and the back of the front supporting frame 11, and the sample receiving cylinder 28 is positioned below the experimental sample tube 25.

In the present invention, nuts 15 are screwed to both ends of the fixing rod 14, and the bottom end of the air outlet tube 29 penetrates through the gravity cylinder 18 and extends to the inside of the gravity cylinder 18.

When the powder feeding device is used, the device is pushed to a proper position through the universal wheel 13 through the matching of the support frame 11, the connecting piece 10 and the first threaded bolt 17, the device is fixed in an anti-skidding manner through the nut 15, the fixing rod 14 and the cushion block 16, the guide cylinder 1 and the guide cover 4 are fixed through the matching of the fixing piece 2 and the clamping piece 3, powder is guided in from the material suction pipe 7, negative pressure is generated inside through the negative pressure suction pipe 8, the powder is filtered once through the second filter screen 30 from the middle and enters the guide cylinder 1, then the piston valve 5 and the air cylinder 6 are started, the powder water automatically drops through the matching of the piston valve 5 and the air cylinder 6 after air is fed into the air cylinder 6, the powder enters the material collecting cylinder 9, then the automatic switch 19 is operated through the gravity action of the powder, so that the powder falls into the shrinkage cylinder 20, and the powder is filtered for the second time through the matching of the guide pipe 22 and the first filter screen 23, then discharge through a large amount of appearance pipes 24 and experiment sample tube 25, under the supporting role of backup pad 26 and strengthening rib 27, connect appearance section of thick bamboo 28 to be located experiment sample tube 25 below and connect the material, can accomplish whole production, No. 23 next door of filter screen is provided with the high frequency solenoid valve when cleaning, high frequency solenoid valve blowout gas, thereby strike No. 23 filter screen, can clean impurity to the inner wall of a filter screen 23 and division section of thick bamboo 20, this clean division all-in-one of powder gathers materials, can seal automatically, can improve the efficiency of powder filtration impurity and the quality that improves the powder simultaneously, and can carry out automatic unloading division and clear up inside remaining impurity.

In conclusion, the powder aggregate cleaning and dividing all-in-one machine pushes equipment to a proper position through the universal wheel 13 through the matching of the support frame 11, the connecting piece 10 and the first threaded bolt 17, the device is fixed in an anti-skid way through the nut 15, the fixing rod 14 and the cushion block 16, the guide cylinder 1 and the guide cover 4 are fixed through the matching of the fixing piece 2 and the clamping piece 3, the powder is led in from the material suction pipe 7, then, negative pressure is generated inside through the negative pressure suction pipe 8, powder is filtered once through the second filter screen 30 from the middle and enters the material guide cylinder 1, then the piston valve 5 and the cylinder 6 are started, the air cylinder 6 is matched with the piston valve 5, the powder water automatically falls after the air is fed into the cylinder 6, the powder enters the material collecting barrel 9, the powder then runs the automatic switch 19 by gravity, so that the powder falls inside the classifying cylinder 20.

And, carry out the secondary filter with the powder through honeycomb duct 22 with the cooperation of filter screen 23, then discharge through a large amount of appearance pipes 24 and experiment sample tube 25, under the supporting role of backup pad 26 and strengthening rib 27, connect appearance section of thick bamboo 28 to be located experiment sample tube 25 below and connect the material, can accomplish whole production, No. 23 next door of filter screen is provided with the high frequency solenoid valve when cleaning, the gas of high frequency solenoid valve blowout, thereby strike filter screen 23, can clean impurity to the inner wall of a filter screen 23 and a division section of thick bamboo 20, this clean division all-in-one that gathers materials of powder, can seal automatically, can improve the efficiency that the powder filtered impurity simultaneously and improve the quality of powder, and can carry out automatic unloading division and clear up inside remaining impurity.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, 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.