Fluid control valve

Details Fluid control valve Fluid control valve

1983-02-18

1984-06-26

Cohan, Alan

Valves and valve actuation

Fluid actuated or retarded

Flexible wall expansible chamber reciprocating valve actuator

251214, F16K 31365

Patent

active

044562187

ABSTRACT:
A fluid control valve actuated by differential pressure across a diaphragm member. The diaphragm member is secured to a piston mounted thereon with a seal ring. The seal ring is in fluid-tight sliding engagement with a casing having an inlet port and an outlet port, but is brought into disengagement from the casing upon movement of the piston due to differential pressure across the diaphragm member. Thus, communication between the inlet and the outlet ports may be accomplished.

REFERENCES:
patent: 2688977 (1954-11-01), Droitcour et al.
patent: 2910081 (1959-10-01), Karbowniczek
patent: 3363412 (1968-01-01), Fischer et al.
patent: 3426998 (1969-02-01), Kintner
patent: 3434694 (1969-03-01), Skinner
patent: 3461913 (1969-08-01), Scott
patent: 3472480 (1969-10-01), Williams
patent: 3789875 (1974-02-01), McGee
patent: 4163543 (1979-08-01), Cook
patent: 4218040 (1980-08-01), Brakebill
patent: 4269028 (1981-05-01), Hattori

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