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Class Information
Number: 4/250
Name: Baths, closets, sinks, and spittoons > Flush-valve operators > Seat operated
Description: The valve is operated by movement of the seat.

Patents under this class:

Patent Number Title Of Patent Date Issued
8266730 Hands-free toilet attachment Sep. 18, 2012
8020221 Hands-free toilet seat lifting device Sep. 20, 2011
7913327 Automatically flushing toilet Mar. 29, 2011
7793363 Flushing mechanism for toilet Sep. 14, 2010
6772452 Laminar flow attachment for controlling toilet bowl splashing Aug. 10, 2004
6374429 Johnnyflush Apr. 23, 2002
5625294 Apparatus for detecting seated condition for toilet seat Apr. 29, 1997
5435016 Toilet flush handle cover Jul. 25, 1995
5410766 Automatic toilet flushing apparatus May. 2, 1995
5400446 Seat cover actuated flushing mechanism for toilet Mar. 28, 1995
5388282 Hydro-pneumatic flush system for toilets Feb. 14, 1995
5349703 Toilet lid for flushing a toilet Sep. 27, 1994
5323496 Toilet seat lifting apparatus Jun. 28, 1994
5280653 Toilet-seat flush-valve operating device Jan. 25, 1994
5177818 Toilet-seat flush-valve operating device Jan. 12, 1993
4974263 Lid actuated toilet flushing system Dec. 4, 1990
4912783 Toilet lid closing device Apr. 3, 1990
4491989 Closure device for toilet seats Jan. 8, 1985
4443898 Automatic toilet flushing device Apr. 24, 1984
4338690 Automatic mechanism for flush and raising toilet seat Jul. 13, 1982
4333184 Multi-function closet stool Jun. 8, 1982
4329745 Automatic weight operated toilet flushing device May. 18, 1982

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