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Class Information
Number: 137/472
Name: Fluid handling > Line condition change responsive valves > Pop valves > Pop pressure reactor in branched released path
Description: Valves in which the fluid is released in a plurality of paths, the reactor surfaces being located in one or more of the branches.

Sub-classes under this class:

Class Number Class Name Patents
137/473 Separate relief valves or valves for each branch 2

Patents under this class:

Patent Number Title Of Patent Date Issued
8557454 Fuel cell system and reverse flow relief valve Oct. 15, 2013
8245725 Pressure relief device Aug. 21, 2012
6189562 Overflow valve Feb. 20, 2001
5845675 Diaphragm/spring actuated pressure relief valve with pressure balanced outlet and fail-safe operation Dec. 8, 1998
4896689 Cylinder pressure relief valve Jan. 30, 1990
4520843 Flow control valve Jun. 4, 1985
4007758 Respirator pressure-demand exhalation valve Feb. 15, 1977

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