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Browse by Category: Main > Household
Class Information
Number: 4/404
Name: Baths, closets, sinks, and spittoons > Flush closet > Tank only > With outlet valve > Float type > Hollow > Open at bottom
Description: Subject matter wherein the valve body has an area on the bottom where air or liquid can enter the cavity.










Patents under this class:

Patent Number Title Of Patent Date Issued
8250681 Variable buoyancy setting flapper Aug. 28, 2012
8122526 Adjustable universal flapper Feb. 28, 2012
7937782 Water saving device for a toilet May. 10, 2011
7891028 Water-saving manual toilet flapper valve Feb. 22, 2011
7222375 Tank ball assembly for toilet May. 29, 2007
7216373 Toilet tank valve seat structure May. 15, 2007
6651265 Water saving siphon cover of a chamber pot Nov. 25, 2003
6571401 Flush and tap toilet water saver system Jun. 3, 2003
6381765 Dual-mode flushing control mechanism for ballfloat toilet May. 7, 2002
6336229 Water saving apparatus for water tank Jan. 8, 2002
6173457 Flapper-type flush valve and mounting adapter Jan. 16, 2001
5983412 Toilet tank ball flapper and plastic chain assembly formed as a unitary structures Nov. 16, 1999
5943708 Adjustable tank ball assembly for a two-step flushing control type ballfloat toilet Aug. 31, 1999
5819329 Variable control air valve and flush gate flapper Oct. 13, 1998
5794279 Water saver attachment for toilets Aug. 18, 1998
5699563 Float-controlled dual flush valve Dec. 23, 1997
5524297 Two-level flush valve Jun. 11, 1996
5400444 Double flush toilet valve Mar. 28, 1995
5390375 Adjustable toilet tank valve to regulate flush water volume Feb. 21, 1995
5353445 Conduit attachment system Oct. 11, 1994
5343572 Pressured toilet tank flush valve Sep. 6, 1994
5291620 Push button toilet flush mechanism Mar. 8, 1994
5230103 Short cycle flush valve for commode tanks Jul. 27, 1993
5181282 Semi-flush flapper valve Jan. 26, 1993
5157796 Double flush toilet valve Oct. 27, 1992
4945578 Toilet flush control device Aug. 7, 1990
4937894 Dual flush toilet Jul. 3, 1990
4872473 Dual float valve control for regular and douglas type valve Oct. 10, 1989
4841580 Buoyant and non-buoyant valve Jun. 27, 1989
4656677 Water-closet valve Apr. 14, 1987
3955218 Self-venting tank valve for toilet tanks May. 11, 1976











 
 
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