Pressure responsive check valve

Details Pressure responsive check valve Pressure responsive check valve

1977-10-17

1979-02-13

Cohan, Alan

Motors: expansible chamber type

With motive fluid valve

Relatively movable serial valves

137489, 1374925, 137493, 91451, F15B 13042

Patent

active

041389298

ABSTRACT:
A pressure responsive check valve permits fluid flow therethrough in a first direction and blocks fluid flow therethrough in the reverse direction until the fluid pressure at the blocked side exceeds a preselected pressure level at which time the check valve is controllably opened for reverse flow therethrough.

REFERENCES:
patent: 3124343 (1964-03-01), Williamson
patent: 3362430 (1968-01-01), Olen
patent: 4013093 (1977-03-01), Pensa

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