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Class Information
Number: 137/247.13
Name: Fluid handling > With liquid valves or liquid trap seals > Liquid seal in liquid flow line; flow liquid forms seal > Valves
Description: Apparatus having a valve in the liquid flow line in or adjacent to the seal.

Sub-classes under this class:

Class Number Class Name Patents
137/247.15 Line condition change responsive 9

Patents under this class:

Patent Number Title Of Patent Date Issued
7854238 Conduit trap and condensation recovery device Dec. 21, 2010
6877306 Nozzle assembly with flow divider and ecology valve Apr. 12, 2005
6698225 Biased condensation trap Mar. 2, 2004
6632404 Automatically actuated parallel sample injector valve Oct. 14, 2003
6049031 Magnetic valve system for a musical instrument Apr. 11, 2000
5236137 Apparatus and method for garbage disposal cleaning Aug. 17, 1993

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