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Class Information
Number: 137/247.27
Name: Fluid handling > With liquid valves or liquid trap seals > Liquid seal in liquid flow line; flow liquid forms seal > Plural inlet
Description: Devices having connections for a plurality of inlet pipes.

Patents under this class:

Patent Number Title Of Patent Date Issued
8033486 Waste line connector assembly Oct. 11, 2011
6859956 P-trap for plumbing drainage systems Mar. 1, 2005
6589440 Waterless urinal with liquid seal, liquid seal and method of using liquid seal Jul. 8, 2003
6341618 Plumbing stop valve and method of use Jan. 29, 2002
5941273 Drain trap apparatus Aug. 24, 1999
5901731 Reverse osmosis drain coupling and method of installing May. 11, 1999
5379749 Condensate trap for multi-poise furnace Jan. 10, 1995
5309890 Dual-sided condensate trap for furnace May. 10, 1994
4842844 Method of generating hydrogen Jun. 27, 1989
4800596 Ventilated toilet Jan. 31, 1989
4655242 Water seal drum Apr. 7, 1987
4263138 Trap-type drain fitting Apr. 21, 1981
4254512 Water trap Mar. 10, 1981
4248711 Basement floor drain and integral trap Feb. 3, 1981
4198717 Modular assembly for drain trap Apr. 22, 1980
4074686 Manually closable anti-backup trap Feb. 21, 1978

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