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Class Information
Number: 137/247.39
Name: Fluid handling > With liquid valves or liquid trap seals > Liquid seal in liquid flow line; flow liquid forms seal > Submerged inlet pipe end > Distinct seal bowl in flow line connected casing
Description: Seals wherein the chamber comprises a distinct overflow seal bowl within a flow line connected closed casing.










Patents under this class:

Patent Number Title Of Patent Date Issued
7740025 Method and apparatus for preventing drain line clogging over an extended time using liquid or solid biocides Jun. 22, 2010
7490624 Passive pressure activation valve Feb. 17, 2009
6959723 Oil sealant-preserving drain odor trap Nov. 1, 2005
6662387 Water trap Dec. 16, 2003
6425411 Oil sealant-preserving drain odor trap Jul. 30, 2002
6192915 Sewerage inlet Feb. 27, 2001
6164309 Liquid filling device Dec. 26, 2000
6053197 Horizontal-flow oil-sealant-preserving drain odor trap Apr. 25, 2000
5916436 Drain trap Jun. 29, 1999
5203369 Sink-trap Apr. 20, 1993
4432384 Sewer fluid trap Feb. 21, 1984
4263934 Dental waste trap Apr. 28, 1981
4045346 Basement sewer trap Aug. 30, 1977
4026317 Waterseal May. 31, 1977











 
 
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