US Patent No: 4,843,835

Number of patents in Portfolio can not be more than 2000

Refrigerator drain funnel

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Importance

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Abstract

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A rigid plastic twist lock drain funnel for conveying defrost water from the interior of the refrigerator cabinet, through the insulation space, to the exterior. A top portion of the funnel has a groove seating an O-ring, and a central portion has a pair of radially extending cam-shaped ears. During fabrication, the drain funnel is inserted from inside the refrigerator liner through an aperture having notches for receiving the ears, and then the funnel is twisted approximately 90.degree. to engage the ears as a cam lock. In such arrangement, the funnel is securely attached to the liner and the O-ring provides a seal therebetween so as to prevent subsequently injected foam insulation from leaking to the interior of the cabinet. To allow for misalignment between the linear and the outer case, the opposite end of the drain funnel passes through an oversized hole in the outer case of the refrigerator. A spongy gasket around the lower end of the funnel is compressed between a shoulder of the funnel and the outer case so as to provide a seal therebetween.

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Patent Owner(s)

Patent OwnerAddressTotal Patents
AMANA COMPANY, L.P., A DELAWARE CORPORATIONAMANA, IA148
MAYTAG CORPORATIONNEWTON, IA810
RAYTHEON APPLIANCES, INC.AMANA, IA77

International Classification(s)

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Goetz, Glenn E East Amana, IA 13 150
Klemmensen, Ramon L Cedar Falls, IA 11 125
Prunty, Jeffrey L 7423 Fox Ct. NorthEast, Cedar Rapids, IA 52402 5 85

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Patent Citation Ranking

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Patent Info (Count) # Cites Year
 
DENSO CORPORATION (2)
6,044,656 Automotive air conditioner 12 1998
7,284,388 Air conditioner 4 2005
 
ELECTROLUX HOME PRODUCTS, INC. (2)
5,699,677 Compressor mounted drain pan utilizing polyurethane adhesive 6 1996
6,363,736 Condensate evaporator pan 15 2001
 
United States Surgical Corporation (2)
5,454,825 Circular anastomosis device with seal 159 1993
5,437,684 Circular anastomosis device 111 1993
 
CARRIER CORPORATION (1)
7,418,827 Vertical condensate pan with non-modifying slope attachment to horizontal pan for multi-poise furnace coils 1 2006
 
FRANKLIN MACHINE PRODUCTS (1)
8,857,481 Removable drain funnel 0 2011
 
GENERAL ELECTRIC COMPANY (1)
8,240,159 In-door fluid drainage system for a refrigerator 0 2009
 
HALLA VISTEON CLIMATE CONTROL CORPORATION (1)
7,392,663 Two layer type air conditioner of vehicles 2 2005
 
JAMCO CORPORATION (1)
7,174,739 Air chiller unit 1 2004
 
Nippondenso Co., Ltd. (1)
5,481,886 Cooling unit and drain case for air conditioners 9 1994
 
POLAR KING INTERNATIONAL, INC. (1)
5,341,653 Apparatus and method for disposing of condensate from evaporator drip pans 13 1993
 
RHEEM MANUFACTURING COMPANY (1)
7,430,877 Air conditioning apparatus and associated condensate drain pan structure 5 2005
 
TECNOSYSTEMI S.P.A. (1)
6,321,554 Flush-mount enclosure, particularly for making provisions for air-conditioning systems 1 2000
 
WHIRLPOOL CORPORATION (1)
5,499,514 Defrost water drain system for a refrigerator 15 1994
 
Other [Check patent profile for assignment information] (4)
D328337 Evaporator casing for the heat exchanger of an air conditioner 0 1991
6,694,537 Toilet seal ring 1 2001
7,320,227 Refrigerator with a separate insulated compartment provided with a drain pipe 1 2001
7,575,617 Integral filter and grill assembly for a cold air return 9 2006