US Patent No: 6,108,828

Number of patents in Portfolio can not be more than 2000

Drain cover assembly




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An improved drain cover assembly for a sink is provided. The assembly includes a generally cylindrical basket having a flat bottom. A sealing plate is attached to the underside of the flat bottom. A plurality of apertures sized to permit the drainage of liquids from the sink, but prevent solid materials from passing therethrough, are located on the bottom of the basket about the sealing plate. An externally threaded member extends from the bottom of the sealing plate. The plug may be cylindrically shaped or frustoconically shaped and is press fit into a drainpipe. The plug has an open upper end and a bottom surface. The bottom surface contains a plurality of apertures to allow for liquid to drain but to prevent solid materials from passing therethrough. The bottom surface of the plug has an internally threaded member extending upwardly therefrom which mates with the threaded member extending from the bottom of the sealing plate. The upper edge of the plug contacts the sealing plate to seal the drain cover assembly when the basket is threaded down on the plug. The assembly is opened by rotating the basket with respect to the plug from a space between the sealing plate and the plug to allow liquid to drain therethrough.

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Patent Owner(s)

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International Classification(s)


Inventor Name Address # of filed Patents Total Citations
Cheng, Jip 123 Westview Ave., Paramus, NJ 07652 1 17

Cited Art Landscape

Patent Info (Count) # Cites Year
Jameco Industries, Inc. (1)
* 5,418,983 Decorative color changeable basket sink strainer 19 1994
Other [Check patent profile for assignment information] (1)
* 4,683,597 Drain plug 18 1986
* 5,535,455 Sink strainer for garbage disposal unit 19 1995
* 4,720,877 Drain closure 28 1986
Fort Recovery Industries, Inc. (1)
* 4,586,203 Sink strainer assembly 9 1984
* 4,320,540 Discharge drain assembly 19 1980
Jomar International, Ltd. (1)
* 5,369,815 Sink strainer having a detachable seal 9 1993
* Cited By Examiner

Patent Citation Ranking

Forward Cite Landscape

Patent Info (Count) # Cites Year
Other [Check patent profile for assignment information] (6)
D449873 Garbage disposal strainer and splash guard 15 2000
D462422 Bath drain strainer 12 2001
* 7,013,500 Strainer 13 2004
7,467,425 Drain cover and associated methods 6 2005
D655399 Concealed floor drain 0 2010
* 8,763,170 Sink strainer scraper apparatus for dislodging residual solid debris therefrom 0 2011
D669969 Drain insert 5 2012
1053729 ONTARIO, INC. (1)
D454177 Sink basket strainer 19 2001
Aromatic Drain Device, Inc. (1)
8,409,433 Device for use with floor drains 2 2012
Mangrom, Mark A. (1)
* 7,618,532 Aromatic drain device 5 2008
* 8,590,065 Drain strainer 0 2012
The United States of America as represented by the Secretary of the Navy (1)
6,802,962 Deck drain cover plate assembly 9 2002
* 8,496,811 Drain locking device for floor drains 2 2012
8,813,272 Device and method for concealing a flange of a waste water strainer 0 2011
8,607,376 Cover and method for covering the flange of a waste water strainer 0 2012
TWI International Taiwan, Inc. (1)
D441848 Garbage collecting basket for sink 13 2000
* 7,887,697 Aromatic drain device 4 2006
* Cited By Examiner