The present invention relates generally to an apparatus and method for cleaning wares and other items. More specifically, the present invention is concerned with a rinse system “window”™ for a washing machine that creates a curtain of fluid through which wares or other items are passed for cleansing/rinsing and/or sanitizing.
Pot and pan washing machines, of the type used in restaurants, institutions and other facilities often involve a large wash tank or basin in which fluid is circulated about the pots and pans to provide a washing action. One such machine is described in U.S. Pat. No. 4,773,436 issued to Cantrell et al., the entire disclosure of which is incorporated herein by reference. The inventions disclosed in U.S. Pat. Nos. 6,739,348; 6,976,496; 7,162,788; and 7,246,624, and U.S. patent application Ser. Nos. 11/074,269; 11/775,465; 12/020,223, and 12/430,724, the entire disclosures of which are incorporated herein by reference, provide a number of improvements to machines such as disclosed in U.S. Pat. No. 4,773,436. Nevertheless, the efficiency and effectiveness of the machines and methods of washing objects can be improved. In particular, the machine disclosed in the patents and applications referenced above all typically include a separate scrap basin, wash tank, rinse tank, and sanitizer tank, as well as counter-top work surfaces. This results in a considerably large footprint for the overall machine. As space within kitchens is typically a premium, it is desirable to minimize the footprint as much as possible, In addition, it is desirable to provide a system and method of cleaning objects, that adequately cleans and/or rinses and/or sanitizes all surfaces of the objects while quickly and easily moving the objects from one point to another.
An object of the present invention is to minimize the footprint of washing machines, such as pot and pan washing machines. Another object of the present invention is to provide a system and method of cleaning objects, that adequately cleans and/or rinses and/or sanitizes all surfaces of the objects while quickly and easily moving the objects from one point to another. Still another object of the present invention is to provide a system and method of cleaning objects, that adequately cleans and/or rinses and/or sanitizes all surfaces of the objects while minimizing the footprint of the cleaning apparatus.
According to the above described objects of the instant invention, a washing machine, such as a pot and pan washing machine, is provided that includes a rinsing and/or sanitizing system “window”™ that creates a curtain of water (or other fluid, including rinse agents and/or sanitizing agents) generally within a single plane (or multiple curtains of fluid within two or more generally parallel planes) within the footprint of the washing machine. In one embodiment, the rinse/sanitize “window”™ includes two sections of conduit with fluid-dispensing nozzles or openings located generally parallel to one another, and a third section of conduit positioned generally perpendicular to and connecting the other two sections together to form a “U” or “C” shaped “window”™. The “window”™ includes an opening toward a front end and all three sections of conduit lie in a common generally vertical plane. It will be appreciated that a single section of conduit forming a generally “U” or “C” shape may be utilized without departing from the spirit and scope of the instant invention. In addition, separate unattached sections of conduit that lie in a single plane may be utilized without departing from the spirit and scope of the instant invention. Moreover, it will be appreciated that alternative shapes of the “window”™ of the instant invention may be utilized to create the generally planar curtain(s) of fluid; including, but not limited to a fully enclosed (i.e. four sides or sections of conduit) “window”™.
The nozzles/openings of a preferred embodiment are sized, shaped and located such that they spray fluid generally toward each other, into the space between the sections of conduit, creating a curtain (or curtains) of fluid generally within the common plane (or generally parallel planes) in which sections of conduit are located. In some embodiments in which three conduit sections are utilized as is discussed above, nozzles/openings are located on two sections of conduit that are parallel to one another. In alternative embodiments, nozzles/openings may be located on all sections (e.g. all three sections of a u-shaped or c-shaped three section conduit) conduit, on any single section of conduit, or any combination of sections of conduit.
The rinse/sanitize “window”™ of the present invention may be used in combination with any washing machine, including but not limited to those pot and pan and other washing machines described above with respect to the prior art, to reduce the overall footprint of the machine and/or to decrease the time and effort in washing and/or rinsing and/or sanitizing objects. In one preferred embodiment, a rinsing (and/or sanitizing) “window”™ of the present invention is mounted over an end portion of a wash tank/sink of a washing machine, such that fluid from the rinsing/santizing “window”™ drains into the wash tank. Such an arrangement allows the rinse and/or sanitizer tank to be eliminated, for the size of the rinse and/or sanitizer tanks to be reduced, for a single tank to function as a backup rinse/sanitizing tank in place of separate rinse and sanitizer tanks, for rinse/sanitizer tanks to be replaced with work surfaces, drain boards or other object, or for other reallocation or replacement of rinse/sanitizer tank space (e.g. lids over tanks to function as work surfaces). In this manner, the washing, rinsing and sanitizing processes that are traditionally accomplished in a three sink apparatus may be accomplished in an apparatus with as little as one sink (i.e. a wash sink).
In some embodiments multiple “windows”™ are utilized in which one “window”™ is used for rinsing items and another “window”™ is used for sanitizing items. In other embodiments, one “window”™ dispenses both rinsing agents and sanitizing agents, either as two individual actions, or together in a single mixture or combined rinsing/sanitizing agent. In still another embodiment, a sanitizing apparatus is located or attached generally adjacent to a rinse “window”™ to sanitize items after they are rinsed in the rinse “window”™. In some embodiments, the sanitizing apparatus utilizes a non-fluid sanitizing agent, such as UV light, radio waves, etc.
The conduit sections of the rinse/sanitize “window”™ are operably connected to a source of fluid. In some embodiments, the fluid is ordinary tap water. In some embodiments, the fluid is a sanitizing fluid pumped from an operably connected tank. In some embodiments, the fluid is a combination of cleansing agents.
In some embodiments, the rinse “window”™ also includes a control for initiating and/or stopping the flow of fluid through the nozzles/openings. In some embodiments, the fluid flow is controlled by a manually operated foot pedal. In some embodiments, the fluid flow is controlled by an optical sensor that detects when an object is passed through the common plane in which the three sections of conduit are located. In other embodiments, the fluid flow is controlled by a pressure sensitive “start” or activation/deactivation button.
The conduit sections and/or nozzles/openings may be arranged such that the generally planar curtain (or curtains) of fluid is formed vertically, horizontally, or at any variety of angles. In some embodiments, the rinse/santize “window”™ includes a splash shield. In some embodiments, the rinse/sanitize “window”™ includes a platform extending through the curtain(s) of fluid and disposed substantially perpendicular thereto, without significantly blocking fluid flow from the nozzles/openings.
Another aspect of the invention is a method of cleaning/sanitizing an object by moving the object through the curtain of fluid of the rinse/sanitize “window”™ described above.
The foregoing and other objects are intended to be illustrative of the invention and are not meant in a limiting sense. Many possible embodiments of the invention may be made and will be readily evident upon a study of the following specification and accompanying drawings comprising a part thereof. Various features and subcombinations of invention may be employed without reference to other features and subcombinations. Other objects and advantages of this invention will become apparent from the following description taken in connection with the accompanying drawings, wherein is set forth by way of illustration and example, an embodiment of this invention and various features thereof.
A preferred embodiment of the invention, illustrative of the best mode in which the applicant has contemplated applying the principles, is set forth in the following description and is shown in the drawings.
As required, a detailed embodiment of the present inventions is disclosed herein; however, it is to be understood that the disclosed embodiment is merely exemplary of the principles of the invention, which may be embodied in various forms. Therefore, specific structural and functional details disclosed herein are not to be interpreted as limiting, but merely as a basis for any claims and as a representative basis for teaching one skilled in the art to variously employ the present invention in virtually any appropriately detailed structure.
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The conduits are operably connected to a source of fluid. In some embodiments, the fluid is ordinary tap water and the conduits are operably connected directly to the plumbing system via a hose, pipe or other conduit to the plumbing system (not shown). In some embodiments, the fluid is a sanitizing fluid pumped from a tank that is operably connected to the conduits via a hose, pipe or other conduit (not shown). In some embodiments, the fluid is a combination of cleansing agents or other fluids. For example, the conduits may be configured to spray a mixture of water and sanitizer, or may alternately spray water and sanitizer. In some embodiments in which the conduits alternately spray two or more different fluids, a separate hose, pipe or conduit operably connects the rinsing/sanitizing “window”™ 10 (or multiple “windows”™) to each fluid source.
In some embodiments, the rinse/sanitizer “window”™ also includes a control for initiating and/or stopping or otherwise controlling (e.g. reducing or increasing) the flow of fluid through the nozzles. The flow of fluid may be controlled manually or automatically. By way of example and not by way of limitation, the flow of fluid may be controlled via a foot pedal, optical sensor, or push button.
The conduits may be arranged such that the curtain of fluid is formed vertically, horizontally, or at any angle desired. In a preferred embodiment, as shown in
The rinse/sanitizer “window”™ shown in the figures also includes a splash shield 20. Fluid discharged through the nozzles is generally contained within the confines of the splash shield. In the examples shown in the figures, the splash shield circumscribes at least three sides of the common plane of the rinse/sanitizer “window”™, including the front, back and top sides of the rinse “window”™. In other embodiments, the splash shield is open at the front side to allow an operator to easily move an item through the rinse/sanitizer “window”™ while standing at the front of the machine. The splash shield is made of metal, plastic, or any other suitable material, and is wider than the diameter of the conduit to prevent fluid from splashing out of the area generally surrounding the rinse/sanitizer “window”™. The splash shield is preferably at least as wide as the width of the discharge spray from the nozzles.
The rinse/sanitizer “window”™ shown in the figures also includes a platform extending through the curtain of fluid. The platform is disposed substantially perpendicular to the common plane of the rinse “window”™. The platform extends through the curtain of fluid, without blocking fluid flow from the nozzles. As shown in
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In one embodiment, such as is shown in
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In alternative embodiments to those shown if
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Another aspect of the invention is a method of rinsing an object by moving the object through the curtain of fluid of the rinse/sanitizer “window”™ described above. As shown in
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The system and method of the instant invention provides an operator of the system the ability to complete all tasks from a single stationary position. In particular, in the embodiment shown in
Referring to
In the foregoing description, certain terms have been used for brevity, clearness and understanding; but no unnecessary limitations are to be implied therefrom beyond the requirements of the prior art, because such terms are used for descriptive purposes and are intended to be broadly construed. Moreover, the description and illustration of the inventions is by way of example, and the scope of the inventions is not limited to the exact details shown or described.
Although the foregoing detailed description of the present invention has been described by reference to an exemplary embodiment, and the best mode contemplated for carrying out the present invention has been shown and described, it will be understood that certain changes, modification or variations may be made in embodying the above invention, and in the construction thereof, other than those specifically set forth herein, may be achieved by those skilled in the art without departing from the spirit and scope of the invention, and that such changes, modification or variations are to be considered as being within the overall scope of the present invention. Therefore, it is contemplated to cover the present invention and any and all changes, modifications, variations, or equivalents that fall with in the true spirit and scope of the underlying principles disclosed and/or claimed herein. Consequently, the scope of the present invention is intended to be limited only by any attached claims, all matter contained in the above description and shown in the accompanying drawings shall be interpreted as illustrative and not in a limiting sense.
It is also to be understood that any claims are intended to cover all of the generic and specific features of the invention herein described, and all statements of the scope of the invention which, as a matter of language, might be said to fall therebetween.
This application claims priority pursuant to 35 U.S.C. 119(e) to co-pending U.S. Provisional Patent Application Ser. No. 61/178,617, filed May 15, 2009, the entire disclosure of which is incorporated herein by reference.
Number | Date | Country | |
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61178617 | May 2009 | US |