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Class Information
Number: 4/255.03
Name: Baths, closets, sinks, and spittoons > Obstruction remover > Piston > With one way valve
Description: Subject matter wherein the apparatus has a device in the fluid communication with the piston and the obstruction to make the fluid flow in one direction to clean or clear the obstruction within or clear the obstruction from the drain pipe of the sink, bath, or flush closet.










Patents under this class:

Patent Number Title Of Patent Date Issued
8684022 Condensate drain clearing device and method Apr. 1, 2014
7962974 Plunger system and method Jun. 21, 2011
7188377 Hand-operable pump Mar. 13, 2007
6035455 Portable power plumbing plunger Mar. 14, 2000
6032301 Plunger Mar. 7, 2000
5669099 System for use in clearing clogged drains Sep. 23, 1997
5403166 Drain flushing device with top mounted funnel shaped liquid inlet cavity Apr. 4, 1995
5239708 Pneumatic waste line clean-out tool Aug. 31, 1993
4847923 Water and air whirlpooling double flush toilet clog remover Jul. 18, 1989
4733414 Spring loaded drain cleaning device Mar. 29, 1988
4674137 Manual device for cleaning clogged drains Jun. 23, 1987
4358861 Drainpipe cleaner Nov. 16, 1982
4053955 Drain cleaning tool Oct. 18, 1977











 
 
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