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Class Information
Number: 137/390
Name: Fluid handling > Liquid level responsive or maintaining systems > With second diverse control > Manual control
Description: Apparatus in which the second control is a manual control.










Patents under this class:

Patent Number Title Of Patent Date Issued
7363662 STOPRZ Apr. 29, 2008
7040343 Valve assembly with low gas level signaling and controlling function May. 9, 2006
6994107 Easy-to-install, mechanically-operated automatic/manual device for controlling an outlet for water or any fluid Feb. 7, 2006
6848469 Adjustable valve for a toilet Feb. 1, 2005
6779203 Emergency toilet shutoff assembly Aug. 24, 2004
6427719 Hydromagnetic valve for toilets Aug. 6, 2002
6293302 Overflow protection valve assembly Sep. 25, 2001
6076546 Overflow protection valve assembly Jun. 20, 2000
6062255 Float valve assembly for a water purification system May. 16, 2000
6003468 Animal watering valve with deflectable elastomeric boot Dec. 21, 1999
5755256 Automatic shutoff fueling system May. 26, 1998
5394899 Pet watering bowl Mar. 7, 1995
5313979 Fountain faucet May. 24, 1994
5197569 Constant depth reservoir Mar. 30, 1993
5159950 Fountain faucet Nov. 3, 1992
4753277 Beverage dispenser for filling cups with automatic level responsive shut-off of dispensing Jun. 28, 1988
4742843 Air and vacuum relief valve May. 10, 1988
4729400 Liquid control assembly Mar. 8, 1988
4702271 Flow-control device Oct. 27, 1987
4640306 Fluid flow regulator for intravenous feeding device Feb. 3, 1987
4637425 Sewer check valve with cutting seat Jan. 20, 1987
4607658 Water level control device Aug. 26, 1986
4605037 Liquid overfill protection system Aug. 12, 1986
4579140 Air relief device for liquid flow pipe Apr. 1, 1986
4543973 Liquid level control apparatus and method Oct. 1, 1985
4542765 Pneumatic liquid level control having either throttling of snap action Sep. 24, 1985
4522226 Valve for automatic stoppage of water supply Jun. 11, 1985
4520836 Freezeproof valve assembly Jun. 4, 1985
4495960 Suds return valve for automatic washers Jan. 29, 1985
4491150 Outdoor water holding and pumping system Jan. 1, 1985
4462417 Valve assembly Jul. 31, 1984
4406299 Liquid level valve Sep. 27, 1983
4360038 Magnetically-operated valve Nov. 23, 1982
4335734 Float warning device Jun. 22, 1982
4316484 Liquid level valve Feb. 23, 1982
4151859 Throttle shaft for the controlled discharge of dammed-up water May. 1, 1979
4109834 Constant volume fluid discharging device Aug. 29, 1978
4091846 Fluid transfer methods and apparatus May. 30, 1978
3965947 Tank filling system employing emergency shut-off valve Jun. 29, 1976
3956777 Cistern ball cock control device May. 18, 1976
3945057 Control for water closets Mar. 23, 1976











 
 
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