Refrigeration – Withdrawable liquid – e.g. – dispenser
Reexamination Certificate
2003-03-20
2004-03-23
Tapolcai, William E. (Department: 3744)
Refrigeration
Withdrawable liquid, e.g., dispenser
C062S291000, C222S146600
Reexamination Certificate
active
06708518
ABSTRACT:
BACKGROUND OF THE INVENTION
1. Field of the Invention
The present invention relates to a refrigerator door dispenser spill shelf drain for use in connection with refrigerator door mounted ice and water dispensers. The refrigerator door dispenser spill shelf drain has particular utility in connection with production of new refrigerators.
2. Description of the Prior Art
Refrigerator door dispenser spill shelf drains are desirable for draining spillage or overflow water or ice that would otherwise accumulate in the shelf. The water or ice can spill out of the shelf when the shelf is removed to be emptied and create a mess or potential slip hazard. The accumulated water or ice melt can also mold or mildew in the shelf.
The use of door mounted water and ice dispensers is known in the prior art. For example, U.S. Pat. No. 5,971,213 to Lee discloses one way to provide cooled water for the consumer's convenience from a refrigerator door mounted water dispenser. However, the Lee '213 patent does not provide overflow protection, and has further drawbacks of not providing drainage for spilled water from the water collection and receiving tray to a separate collection pan for evaporation.
U.S. Pat. No. 6,058,718 to Forsberg et al. discloses a portable potable water recovery and dispensing apparatus that provides a means for collecting water from the ambient air and dispensing the collected water, either heated or chilled or as ice. However, the Forsberg '718 patent does not provide overflow protection for the spill collection tray, and has further drawbacks of not providing drainage for spilled ice or water from the water collection tray, as the tray requires intervention by the user to drain the water.
Similarly, U.S. Pat. No. 5,906,110 to Choi discloses a receiving and discharging apparatus that fits within a refrigerator that collects water produced during the defrosting and operation of the cooler coils. However, the Choi '110 patent does not provide the same structure or function as the present invention, and can not provide removal of the accumulated water from the drip collection tray of a door mounted ice and water dispenser without user intervention.
Also, U.S. Pat. No. 5,542,265 to Rutland discloses a door mounted water dispenser that has an internally mounted water container in which the water is cooled. However, the Rutland '265 patent does not contain the same structure as the present invention as it requires user intervention to empty the accumulated water, and cannot provide drainage for the water spilled from the dispenser and route the water to a collection and evaporation pan.
Additionally, U.S. Pat. No. 5,279,445 to Fisher et al. discloses a cable operated ice dispensing door that operates to rapidly close the ice dispensing door of a drink dispensing machine to thereby curtail the loss of ice from the insulated ice storage area. However, the Fisher '445 patent does not have the same structure as the present invention, and can not provide for the collection of the melted ice and spilled water for evaporation as does the present invention.
Lastly, U.S. Pat. No. Des. 369,719 to Eddy et al. discloses a drip tray for a domestic water cooler that attaches to slots on the cooler to collect drips and spills from the cooler. However, the Eddy '719 patent does not provide the same structure as the present invention, and has the additional deficiency of not being self-draining to an internally contained evaporation pan and therefore requires user intervention to empty the accumulated water from the tray.
While the above-described devices fulfill their respective, particular objectives and requirements, the aforementioned patents do not describe a refrigerator door dispenser spill shelf drain that allows for internal collection and disposal of the water drained from the spill tray. The Choi '110 patent is directed towards a different problem with refrigerators, and thus makes no provision for self-draining of the collected water, as the disclosed drip collector requires intervention by the user to remove the accumulated water. The Fisher '445 patent is an improvement in its area, as it provides a drain mechanism for spilled ice or melt water but does not have the same structure of the present invention, as it does not provide an internal evaporation container to collect and evaporate the collected water but requires attachment to an external drain.
Therefore, a need exists for a new and improved refrigerator door dispenser spill shelf drain that can be used for integration on door mounted refrigerator ice and water dispenser spill trays. In this regard, the present invention substantially fulfills this need. In this respect, the refrigerator door dispenser spill shelf drain according to the present invention substantially departs from the conventional concepts and designs of the prior art, and in doing so provides an apparatus primarily developed for the purpose of obviating the need for user intervention to remove spilled ice or water from the spill collection tray.
SUMMARY OF THE INVENTION
In view of the foregoing disadvantages inherent in the known types of door mounted ice and water dispenser spill trays now present in the prior art, the present invention provides an improved refrigerator door dispenser spill shelf drain, and overcomes the above-mentioned disadvantages and drawbacks of the prior art. As such, the general purpose of the present invention, which will be described subsequently in greater detail, is to provide a new and improved refrigerator door dispenser spill shelf drain which has all the advantages of the prior art mentioned heretofore and many novel features that result in a refrigerator door dispenser spill shelf drain which is not anticipated, rendered obvious, suggested, or even implied by the prior art, either alone or in any combination thereof.
To attain this, the present invention essentially comprises a drain system that is connected at one end to the spill collection tray of a refrigerator door mounted ice and water dispenser and terminates at a collection and evaporation pan located atop the condenser of the refrigerator. The drain system serves to remove the water that would otherwise collect in the spill collection tray. The drain system uses tubing that can be formed using plastic, vinyl, copper tubing or similar flexible material, either singularly or in combination. The drained water is routed through grommets or similar guides placed in the refrigerator door and wall to prevent pinching or impingement of the drain tube.
There has thus been outlined, rather broadly, the more important features of the invention in order that the detailed description thereof that follows may be better understood and in order that the present contribution to the art may be better appreciated.
The invention may also include a coiled portion in the drain tube to allow for free movement of the drain tube to minimize pinching or impingement of the drain tube when the door is opened. There are, of course, additional features of the invention that will be described hereinafter and which will form the subject matter of the claims attached.
Numerous objects, features and advantages of the present invention will be readily apparent to those of ordinary skill in the art upon a reading of the following detailed description of presently preferred, but nonetheless illustrative, embodiments of the present invention when taken in conjunction with the accompanying drawings. In this respect, before explaining the current embodiment of the invention in detail, it is to be understood that the invention is not limited in its application to the details of construction and to the arrangements of the components set forth in the following description or illustrated in the drawings. The invention is capable of other embodiments and of being practiced and carried out in various ways. Also, it is to be understood that the phraseology and terminology employed herein are for the purpose of descriptions and should not be regarded as limiting.
As su
Jones Eangla Taylor
Jones Lorenzo
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