Pneumatic pressure responsive valve assembly

Details Pneumatic pressure responsive valve assembly Pneumatic pressure responsive valve assembly

1979-12-05

1981-12-08

Rosenthal, Arnold

Valves and valve actuation

Fluid actuated or retarded

Flexible wall expansible chamber reciprocating valve actuator

251 615, 137DIG8, 92 98D, F16K 31126

Patent

active

043043909

ABSTRACT:
A pneumatic pressure responsive valve assembly includes a housing, a diaphragm piston including a diaphragm member and a piston member, the diaphragm member having an outer periphery secured to the housing and an inner periphery secured to the piston member, two pneumatic chambers defined by the diaphragm piston within the housing, one of the chambers selectively receiving both of the fluid pressures which are higher and lower than those within the other of the chambers, the diaphragm member having a curvature which expands towards either of the chambers, an expanding portion formed on either of the housing or the piston member and corresponding to the configuration of the curvature of the diaphragm member to thereby prevent the curvature of the diaphragm member from turning over, and a valve member for cooperation with movement of the piston member.

REFERENCES:
patent: 2905199 (1959-09-01), Cook
patent: 3689025 (1972-09-01), Kiser
patent: 3796408 (1974-03-01), Sheppard
patent: 3847513 (1974-11-01), Foster
patent: 3974849 (1976-08-01), Dawson

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