Patent Application
20130056030
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1. Technical Field of the Invention
The present invention relates generally to beverage can sanitation, and more specifically to an apparatus for cleaning the top of a beverage can, particularly when dispensed by a vending machine.
2. Description of Related Art
Vending machines are ubiquitous, and they can provide anything from cigarettes and beverage cans to cell phones. While vending machine technology, and specifically beverage can vending machine technology, has stabilized, there remains no adequate solution for providing beverage cans with a drinking surface that is generally clean of debris.
To address this issue, it was previously proposed to clean beverage cans immediately after the beverage can top was affixed to the beverage can. A problem with this approach is that the beverage cans would need to be vertically oriented for the cleaning mechanism to have any effect. Moreover, during packaging, transportation and vending, there are many opportunities for the beverage can top to become contaminated.
One proposed solution to this problem was to provide a mechanism that would vertically orient beverage cans from the horizontal position. A problem with this approach was that the beverage cans might be oriented with the opening facing down, thus undermining the success of the resultant cleaning. Again, after cleaning, these cleaned cans would have the opportunity to become dirty once again.
Another approach was to clean beverage cans with water that has been treated with various chemicals. A problem with this approach is that is no consideration of where the can opening is located, and cleaning of the can other than its drinking surface (can top, typically) is wasteful.
Another approach was to use an apparatus that sprayed air onto the top of the can, the apparatus having vents that allow the sprayed air to exit the area around the can opening. Again, the problem with this approach is that, in order for the apparatus to function correctly, another device needs to identify and correctly orient the can opening.
Therefore, it is readily apparent that there is a need for an apparatus that will selectively clean the top of beverage cans.
Briefly described, in a preferred embodiment, the present invention overcomes the above-mentioned disadvantages and meets the recognized need for such a device by providing an apparatus for cleaning beverage cans as they are dispensed from vending machines. The beverage can cleaning apparatus has a can holder, a sensing block, tubes, a first nozzle and a second nozzle. The sensing block is depressed a certain distance, the distance depending on the orientation of the can in the can holder. Subsequently, cleaning fluid and/or compressed air is directed through either the first or second nozzle against the top of the beverage can. Then, the can holder releases the beverage can into the vending machine's exit chamber.
According to its major aspects and broadly stated, the present invention in its preferred form is an apparatus for cleaning a beverage can, the beverage can having a can top and a can bottom. The apparatus has a holder, the holder has a sensing block, and the sensing block is depressed a selected distance when the beverage can is placed in the holder.
The beverage cleaner also has a rod and a sensor, the sensing block being secured to the rod, the rod being forced the aforementioned selected distance into contact with the sensor. The distance the rod is forced into contact with the sensor is equal to a first distance if the sensing block is in contact with the can top, and the distance is equal to a second distance if the sensing block is in contact with the can bottom. The beverage can cleaning apparatus also has a controller, and the controller is in electrical communication with the sensor via a wire. The sensor detects the aforementioned distance and communicates same to the controller via the wire.
The holder has a first vertical wall, and the can top or the can bottom is disposed near the first vertical wall when the beverage can is in the holder. The beverage can cleaning apparatus also has at least one nozzle disposed proximate to the first vertical wall, and the nozzle has apertures. The beverage can cleaning apparatus further has at least one nozzle tube that is in fluid communication with the nozzle. The nozzle is further disposed near the sensing block.
The beverage can cleaning apparatus also has a cleaning liquid container and a cleaning liquid tube that is in fluid communication with the cleaning liquid container, and the cleaning liquid tube is in fluid communication with the nozzle tube.
The beverage can cleaning apparatus can alternatively or additionally have a compressed air container and a compressed air tube, the compressed air tube being in fluid communication with the compressed air container, and the compressed air tube is in fluid communication with the nozzle tube.
The holder also has a second vertical wall, and the nozzle comprises a first nozzle and a second nozzle. The first nozzle is located near the first vertical wall and the second nozzle is located near the second vertical wall. The nozzle tube comprises a first nozzle tube and a second nozzle tube, the first nozzle tube being in fluid communication with the first nozzle, with the second nozzle tube being in fluid communication with the second nozzle.
The holder also has a platform that is hingedly secured to the holder, and the soda can rests on the platform when the soda can is in the holder.
In use, a beverage can is dispensed into the beverage can cleaning apparatus, the beverage can contacting the sensing block. As the can contacts the sensing block, the sensing block is depressed a distance consistent with whether the sensing block is in contact with the top or bottom of the beverage can, the sensing block being depressed a first distance if the sensing block is in contact with the can top, and the sensing block being depressed a second distance if the sensing block is in contact with the can bottom.
For illustrative purposes, if the surface of the sensing block is in contact with the lower perimeter of the soda can, because the sensing block's surface is contoured similarly to the upper perimeter of the soda can, and thus differently than the lower perimeter, the sensing block will be depressed a second distance, the second distance typically being greater than the first distance. However, and again for illustrative purposes, if the sensing block's surface is in contact with the upper perimeter of the soda can, because the sensing block's surface is contoured similarly to the upper perimeter, the sensing block will be depressed a first distance, the first distance typically being less than the second distance.
Subsequently, a cleaning solution or compressed air is selectively dispensed from the selected nozzle against the top of the beverage can, no matter its orientation. Specifically, the beverage can cleaning apparatus has a first nozzle and a second nozzle, and either the cleaning solution and/or compressed air is selectively dispensed from either the first nozzle or the second nozzle depending on can orientation, the selection being consistent with whether the sensing block is in contact with the top or bottom of the beverage can.
More specifically, the sensing apparatus has a sensing block, a rod, a spring and a sensor. The sensor has an uncompressed distance, a first distance, a second distance and a compressed distance. If no soda can is in the holder, then the rod is disposed at the uncompressed distance.
The beverage can cleaner is located within a vending machine near the machine's dispensing window, the vending machine typically being an automated machine for dispensing soda cans, wherein the soda cans exit the vending machine via the machine dispensing window. The soda can has a diameter, a bottom, a periphery and a top, the top having an opening, and the periphery having an upper perimeter and a lower perimeter, with the upper perimeter located near the top and the lower perimeter located near the bottom.
The ramps are angularly disposed, such that the ramp bottom is disposed lower than the ramp top, and the ramp bottom is fixedly secured to the holder.
The compressed air container is in fluid communication with the controller via the compressed air tube, and the cleaning liquid container is in fluid communication with the controller via the cleaning liquid tube. The controller is in fluid communication with the first nozzle tube and the second nozzle tube. The compressed air tube and the cleaning liquid tube are each selectively in fluid communication with the first nozzle tube and the second nozzle tube via the controller. The controller is in electrical communication with the sensing apparatus via the wire.
Preferably, the platform is hingedly secured to the side walls via the hinge. However, it will be recognized by those skilled in the art that the platform may be hingedly secured to the holder other than at or near the side walls.
The side walls are fixedly secured to the first vertical wall and the second vertical wall. The side walls preferably have two side walls, the two side walls being holder-diameter distance from each other, and the holder-diameter distance is approximately equal to the can's diameter.
The first nozzle tube is in fluid communication with the nozzle apertures of the first nozzle, and the second nozzle tube is in fluid communication with nozzle apertures of the second nozzle. In a preferred embodiment, the nozzle apertures are disposed peripherally equidistant from each other on the nozzle face. The first nozzle is disposed near the first vertical wall, and the second nozzle is disposed near the second vertical wall.
The rod of the sensing apparatus is preferably disposed through side walls, and the sensing block is fixedly secured to the rod. The rod is also secured to the sensor. The spring is preferably a resilient metal coil that is compressible and is disposed within the sensor. When compressed, the spring exerts a force on the rod urging the rod to its starting position. However, it will be recognized by those skilled in the art that the spring may comprise any compressible material that will exert an expanding force when compressed.
In use, the vending machine vends a soda can onto the ramp and the can periphery contacts the ramp. Gravity forces the soda can to roll towards the ramp bottom, and subsequently the soda can falls into the holder.
When the soda can is disposed within the holder, the sensing block is in contact with either the upper perimeter or the lower perimeter of the soda can, and the rod is forced to retract the compressed distance into the sensor. Because the upper perimeter and the lower perimeter are dimensioned differently, the rod compresses to the first-distance if the sensing block is in contact with the upper perimeter and compresses to the second-distance if the sensing block is in contact with the lower perimeter. The sensor subsequently communicates either the first-distance or the second-distance to the controller. Based on whether the sensor communicates the first-distance or the second-distance, the controller is able to determine whether the can top or the can bottom is disposed near the first nozzle.
If the sensor communicates the first-distance to the controller, then the controller selectively dispenses the cleaning liquid fluid through the first nozzle tube, via the nozzle apertures, spraying the cleaning liquid against the can's top. Subsequently, the controller selectively dispenses compressed air through the compressed air tube and the first nozzle tube, ultimately exiting from the nozzle apertures against the can's top, thereby drying same.
However, if the sensor communicates the second-distance to the controller, then the controller selectively dispenses the cleaning liquid via the second nozzle tube exiting from the nozzle apertures against the can's top. Subsequently, the controller selectively dispenses compressed air from the compressed air container via the compressed air tube and the second nozzle tube against the can's top, thereby drying same.
Following the dispensing of cleaning liquid and compressed air against the can's top, the controller rotates the platform about the hinge such that the end rotates away from the second vertical wall until the soda can falls into the machine exit chamber.
In a preferred embodiment, the liquid comprises an anti-bacterial substance approved by the U.S. Food and Drug Administration for the use described herein. It will be recognized by those skilled in the art that the liquid may comprise any substance that will clean the can's top, including, for exemplary purposes only and without limitation, water. Further, the cleaning liquid and the compressed air are preferably dispensed against the can's top for three seconds, but it will be recognized by those skilled in the art that the liquid and the compressed air can each respectively be dispensed against the cap top for any amount of time necessary to clean and dry the can top.
In a preferred embodiment, the controller also has a mechanism to regulate and/or increase the pressure of the liquid and the compressed air as they are dispensed via the nozzle tubes.
In an alternate embodiment, there is ramp and the vending machine dispenses soda cans directly into the holder.
Accordingly, a feature and advantage of the present invention is its ability to clean beverage cans.
Another feature and advantage of the present invention is its ability to identify the beverage can top.
Still another feature and advantage of the present invention is its ability to selectively direct a cleaning substance at the can top.
Yet another feature and advantage of the present invention is its ability to be easily incorporated into vending machines.
These and other features and advantages of the present invention will become more apparent to one skilled in the art from the following description and claims when read in light of the accompanying drawings.
The present invention will be better understood by reading the Detailed Description of the Preferred and Selected Alternate Embodiments with reference to the accompanying drawing figures, which are not necessarily drawn to scale, and in which like reference numerals denote similar structure and refer to like elements throughout, and in which:
In describing the preferred and selected alternate embodiments of the present invention, as illustrated in
Referring now to
Referring more specifically to
Turning now to
Spring 130 is a resilient metal coil that is compressible and is disposed within sensor 140. When compressed, spring 130 exerts force 135 on rod 120. However, it will be recognized by those skilled in the art that spring 130 may comprise any compressible material that will exert force 135 when compressed. Sensor 140 comprises uncompressed distance 600, first distance 610, second distance 620 and compressed distance 630, and wherein if no soda can S is in holder 200, then rod 120 is disposed at uncompressed distance 600.
Referring back to
Beverage can cleaner 10 is disposed within vending machine V proximate to machine exit chamber D, wherein vending machine V typically is an automated machine for dispensing soda cans S, and wherein soda cans S exit vending machine V via machine exit chamber D. Soda can S comprises can diameter W (best shown in
Compressed air container 380 is in fluid communication with controller 310 via compressed air tube 360, and cleaning liquid container 390 is in fluid communication with controller 310 via cleaning liquid tube 370. Controller 310 is in fluid communication with first nozzle tube 340 and second nozzle tube 350. Further, compressed air tube 360 and cleaning liquid tube 370 are each selectively in fluid communication with respective first nozzle tube 340 and second nozzle tube 350 via controller 310. Controller 310 is in electrical communication with sensing apparatus 100 via wire 320.
Turning now to
Side walls 260 are fixedly secured to first vertical wall 265 (best shown in
First nozzle tube 340 is in fluid communication with nozzle apertures 430 of first nozzle 410, and second nozzle tube 350 is in fluid communication with nozzle apertures 430 of second nozzle 420. In a preferred embodiment, nozzle apertures 430 are disposed peripherally equidistant from each other on nozzle face 440 (best shown in
Turning to
Turning now to
Specifically, and for illustrative purposes, if surface 115 of sensing block 110 is in contact with lower perimeter LP of soda can S, because surface 115 is similarly contoured to upper perimeter UP, and thus differently than lower perimeter LP, sensing block 110 will be depressed second distance 620, wherein second distance 620 is preferably greater than first distance 610. However, and again for illustrative purposes, if surface 115 of sensing block 110 is in contact with upper perimeter UP of soda can S, because surface 115 is contoured similarly to upper perimeter UP, sensing block 110 will be depressed first distance 610, wherein first distance 610 is preferably less than second distance 620.
Sensor 140 subsequently electrically communicates either first distance 610 or second distance 620 to controller 310. Based on whether sensor 140 communicates first distance 610 or second distance 620, controller 310 is able to determine whether can top T or can bottom B is disposed proximate to first nozzle 410 or second nozzle 420.
If sensor 140 communicates first distance 610 to controller 310, then controller 310 selectively causes liquid L to flow from cleaning liquid container 390 through cleaning liquid tube 370 and first nozzle tube 340, ultimately exiting from nozzle apertures 430 of first nozzle 410 against can top T of soda can S. Subsequently, controller 310 selectively causes compressed air A to flow from compressed air container 380 through compressed air tube 360 and first nozzle tube 340, ultimately exiting from nozzle apertures 430 of first nozzle 410 against can top T of soda can S.
However, if sensor 140 communicates second distance 620 to controller 310, then controller 310 selectively causes liquid L to flow from cleaning liquid container 390 through cleaning liquid tube 370 and second nozzle tube 350, ultimately exiting from nozzle apertures 430 of second nozzle 420 against can top T of soda can S. Subsequently, controller 310 selectively causes compressed air A to flow from compressed air container 380 through compressed air tube 360 and second nozzle tube 350, ultimately exiting from nozzle apertures 430 of second nozzle 420 against can top T of soda can S.
Subsequent to liquid L and compressed air A being dispensed against can top T, controller 310 permits platform 210 to rotate about hinge 220, wherein end 215 rotates away from second vertical wall 270 until soda can S falls into machine exit chamber D.
In a preferred embodiment, liquid L comprises an anti-bacterial substance approved by the U.S. Food and Drug Administration for the use described herein. It will be recognized by those skilled in the art that liquid L may comprise any substance that will clean can top T, including, for exemplary purposes only and without limitation, water. Further, liquid L and compressed air A are preferably dispensed against can top T for three seconds, but it will be recognized by those skilled in the art that liquid L and compressed air A can each respectively be dispensed against cap top T for any amount of time deemed necessary.
In a preferred embodiment controller 310 also comprises a mechanism to regulate and/or increase the pressure of liquid L and compressed air A as they are dispensed into nozzle tubes 330.
Referring now more specifically to
The foregoing description and drawings comprise illustrative embodiments of the present invention. Having thus described exemplary embodiments of the present invention, it should be noted by those skilled in the art that the within disclosures are exemplary only, and that various other alternatives, adaptations, and modifications may be made within the scope of the present invention. Merely listing or numbering the steps of a method in a certain order does not constitute any limitation on the order of the steps of that method. Many modifications and other embodiments of the invention will come to mind to one skilled in the art to which this invention pertains having the benefit of the teachings presented in the foregoing descriptions and the associated drawings. Although specific terms may be employed herein, they are used in a generic and descriptive sense only and not for purposes of limitation. Accordingly, the present invention is not limited to the specific embodiments illustrated herein, but is limited only by the following claims.
