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Class Information
Number: 4/688
Name: Baths, closets, sinks, and spittoons > Drain, overflow or trap for a sink or bath > Drain valve
Description: Subject matter wherein the apparatus has within a means to open, close or modify a passage in fluid communication with the drain of the sink or bath to control the flow of fluid.










Sub-classes under this class:

Class Number Class Name Patents
4/693 Operating means in sink or bath 23
4/689 Pop-up 48


Patents under this class:

Patent Number Title Of Patent Date Issued
8584272 Method and associated apparatus for assembling and testing a plumbing system Nov. 19, 2013
8528128 Closure device for drain pipeline Sep. 10, 2013
8321970 Method and associated apparatus for assembling and testing a plumbing system Dec. 4, 2012
8201581 Waste water outlet Jun. 19, 2012
8028357 Method and associated apparatus for assembling and testing a plumbing system Oct. 4, 2011
7984521 Device for actuating the drainage valve of a sanitary article Jul. 26, 2011
7530123 Automatic drain May. 12, 2009
7240852 Drinking fountain with automatic stagnant water flushing system Jul. 10, 2007
7240853 Emergency shower with automatic stagnant water flushing system Jul. 10, 2007
7240854 Eyewash with automatic stagnant water flushing system Jul. 10, 2007
7178739 Automatic stagnant water flushing system Feb. 20, 2007
6966077 Apparatus for automatically operating a drain valve in a washstand Nov. 22, 2005
6675407 Solenoid activated bathtub drain closure Jan. 13, 2004
6637051 Overflow and drain control for a bathtub Oct. 28, 2003
6609259 Drain assembly and sink Aug. 26, 2003
6584625 Drain flow control device for commercial drainage system Jul. 1, 2003
6546573 Drain cover assembly Apr. 15, 2003
6523192 Method and apparatus for automatically disinfecting plumbing fixtures Feb. 25, 2003
6484329 Bladder-controlled stopper device Nov. 26, 2002
6470514 Drain valve Oct. 29, 2002
6415463 Drain stop and overflow mechanism for a bathtub Jul. 9, 2002
6367102 Drain assembly with installation aid stopper guide Apr. 9, 2002
6341391 Hidden drain outlet structure for sink Jan. 29, 2002
6317906 Strainer assembly for bathtub drains and the like Nov. 20, 2001
6282730 Magnetic stopper Sep. 4, 2001
6154898 Wastewater drain control for fluid compartments Dec. 5, 2000
6119283 Method and apparatus for evacuation of liquids Sep. 19, 2000
6061847 Linkage assembly for a pop-up drain stopper May. 16, 2000
6058526 Drain assembly May. 9, 2000
5996143 Pop up lavatory plug Dec. 7, 1999
5662138 Drop head structure Sep. 2, 1997
5419359 Gas and liquid backflow-preventing valve device for drains May. 30, 1995
5363518 Popup drain stopper Nov. 15, 1994
5117862 Back water trap Jun. 2, 1992
5050247 Drain valve and lift rod connection Sep. 24, 1991
4945579 Drain valve activator assembly Aug. 7, 1990
4523339 Sink drain valve Jun. 18, 1985
4457030 Waste outlet fittings Jul. 3, 1984
4402093 Emergency valve unit for preventing overflow of a toilet Sep. 6, 1983











 
 
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