Condition responsive valve construction

Details Condition responsive valve construction Condition responsive valve construction

1975-11-19

1977-04-12

Schwadron, Martin P.

Valves and valve actuation

Fluid actuated or retarded

Flexible wall expansible chamber reciprocating valve actuator

F16K 31126

Patent

active

040170543

ABSTRACT:
A condition responsive valve construction having a housing provided with an inlet and an outlet leading to and from a chamber therein. A self-contained valve seat and movable valve member unit is removably disposed in the chamber to control the interconnection between the inlet and the outlet. Condition responsive means are carried by the housing for controlling movement of the valve member relative to the valve seat in relation to the condition sensed by the condition responsive means. The self-contained unit is either a direct acting unit or a reverse acting unit while still being adapted to be operated by the same condition responsive means whereby the condition responsive valve construction can be either direct acting or reverse acting, depending upon the self-contained unit removably disposed in the chamber thereof.

REFERENCES:
patent: 2615468 (1952-10-01), Woolley
patent: 3319649 (1967-05-01), Cummins
patent: 3322142 (1967-05-01), Baumann
patent: 3614055 (1971-10-01), Douglas
patent: 3704854 (1972-12-01), Katchka

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