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Class Information
Number: 4/378
Name: Baths, closets, sinks, and spittoons > Flush closet > Tank only > With outlet valve
Description: Subject matter including a liquid flow control means to permit a quantity of flushing liquid to pass from the tank to the bowl. The flow control means includes a solid element movable from a position blocking the cross section opening of a liquid outlet pipe by covering or entering the outlet pipe, which position is referred to as the seated position of the valve.










Sub-classes under this class:

Class Number Class Name Patents
4/405 Actuator 88
4/394 Connected to float 38
4/395 Float type 44
4/392 Swinging 26
4/379 With delay of valve closing 29
4/390 With overflow through valve closure 24


Patents under this class:
1 2 3

Patent Number Title Of Patent Date Issued
5666674 Dump bucket toilet Sep. 16, 1997
5653252 Drain valve for a flush tank Aug. 5, 1997
5652970 Toilet water reservoir water dumping valve for sealing the reservoir's water outlet by hydraulic pressure, and controlling water volume Aug. 5, 1997
5517701 Toilet flush control assembly and methods May. 21, 1996
5464037 Level control valve arrangement and water closet cistern Nov. 7, 1995
5353445 Conduit attachment system Oct. 11, 1994
5349981 Drain valve for a flush tank Sep. 27, 1994
5331690 Dual control flushing mechanism, enabling complete or partial evacuation of a toilet tank to be operated selectively Jul. 26, 1994
5329647 Flush valve for low water volume toilet Jul. 19, 1994
5325547 Water closet tank flush valve Jul. 5, 1994
5318275 Portable waste holding tank with improved inlet valve assembly Jun. 7, 1994
5293650 Replacement flush valve Mar. 15, 1994
5218725 Flush valve water accelerator Jun. 15, 1993
5197151 Variable volume flushing device for water conservation Mar. 30, 1993
5195190 Water conserving toilet tank adapter Mar. 23, 1993
5179739 Water conserving toilet assembly Jan. 19, 1993
5173971 Replacement flush valve Dec. 29, 1992
5090066 Adapter for toilet fitting Feb. 25, 1992
5088133 Flush mechanism for toilets Feb. 18, 1992
5042526 Valveless toilet Aug. 27, 1991
5031249 Universal recreational vehicle toilet system with removable holding tank Jul. 16, 1991
4984312 Flush valve adjustable adapter Jan. 15, 1991
4974899 Recreational vehicle use system particularly tank installation Dec. 4, 1990
4956880 Actuating device for moving a valve for emptying a flush tank Sep. 18, 1990
4922556 Flushing means May. 8, 1990
4892349 Toilet system with removable holding tank for recreational vehicles Jan. 9, 1990
4881279 Dual flush mechanism Nov. 21, 1989
4872473 Dual float valve control for regular and douglas type valve Oct. 10, 1989
4865631 Vacuum sewage system Sep. 12, 1989
4858252 Trim assembly Aug. 22, 1989
4840196 Bi-stable, three condition flush tank system Jun. 20, 1989
4776631 Self-contained RV sanitary systems Oct. 11, 1988
RE32750 Fluid operated waste tank servicing assembly Sep. 20, 1988
4656677 Water-closet valve Apr. 14, 1987
4584726 Fluid operated waste tank servicing assembly Apr. 29, 1986
4571753 Toilet-tank discharge valve Feb. 25, 1986
4557000 Toilet-tank discharge valve Dec. 10, 1985
4486906 Water-saving flush valve Dec. 11, 1984
4471499 Cistern flush valve assembly Sep. 18, 1984
4454614 Valve arrangement for water toilets Jun. 19, 1984
4433446 Flush valve attachment system Feb. 28, 1984
4385406 Water closet valve May. 31, 1983
4376315 Vacuum flush valve Mar. 15, 1983
4371992 Water feeder conservation tank Feb. 8, 1983
4365364 Toilet flush control using a hollow crown instant close flapper valve Dec. 28, 1982
4365365 Flush valve and means for mounting the same Dec. 28, 1982
4357720 Flush valve mounting for toilets Nov. 9, 1982
4342328 Two stage float valve Aug. 3, 1982
4338689 Self-aligning valve assembly Jul. 13, 1982
4293964 Design for flush tank control using non-buoyant flapper valve Oct. 13, 1981

1 2 3










 
 
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