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Class Information
Number: 137/248
Name: Fluid handling > With liquid valves or liquid trap seals > Seal for relatively movable valving parts
Description: Apparatus in which the liquid is used to seal a gap between relatively movable valving parts of a valve in at least one position of the valve, the liquid pool comprising in effect the seat for the movable valve element.

Sub-classes under this class:

Class Number Class Name Patents
137/249 Horizontally moving valve 0

Patents under this class:

Patent Number Title Of Patent Date Issued
8578963 Nonreturn valve for an exhaust line Nov. 12, 2013
6629621 Gauge hatch with liquid seal Oct. 7, 2003
6375437 Power operated air compressor assembly Apr. 23, 2002
6250331 Zero crack-pressure, high-flow valve Jun. 26, 2001
6056005 Vent valve with liquid seal May. 2, 2000
5171025 Sealing arrangement for a valve and more particularly one in the form of a multi-way valve Dec. 15, 1992
5146896 Mounting fuel injection system components on a fuel rail Sep. 15, 1992
4750705 Magnetic quick action valve Jun. 14, 1988
4144902 Isolation valve Mar. 20, 1979
3949907 Storage bin with liquid sealed discharge opening Apr. 13, 1976

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