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Class Information
Number: 137/516.23
Name: Fluid handling > Line condition change responsive valves > Direct response valves (i.e., check valve type) > Single head, plural ports in parallel > Annular head > Central post on seat > Guide
Description: Valves wherein the post provides guide means for the valve head.

Patents under this class:

Patent Number Title Of Patent Date Issued
8662105 Suction valve with unloader Mar. 4, 2014
8500420 Suction valve with unloader Aug. 6, 2013
7540301 Compressor valve Jun. 2, 2009
6539974 Valve with guide extensions for valve plate Apr. 1, 2003
6530395 Check valve arrangement Mar. 11, 2003
6510868 Profiled plate valve Jan. 28, 2003
5785081 Compressor inlet valve Jul. 28, 1998
5669411 Compressor valve Sep. 23, 1997
5275541 Fluid-operated valve for pumps and the like Jan. 4, 1994
5232354 Compressor discharge valve assembly having plural wave ring biasing means Aug. 3, 1993
4951706 Flapper check valve Aug. 28, 1990
4924906 Ring valve May. 15, 1990
4705068 Ported-plate, fluid control valve Nov. 10, 1987
4106816 Hub cap for trailer wheels and the like Aug. 15, 1978
4028243 Relief valve for a fluid filter assembly Jun. 7, 1977

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