Dual action trip and control valve

Details Dual action trip and control valve Dual action trip and control valve

1978-04-07

1980-08-19

Cohen, Irwin C.

Motors: expansible chamber type

With motive fluid valve

Plural actuators for single valve means

91427, 1376256, 251 14, F15B 1108, F15B 1304

Patent

active

042178142

ABSTRACT:
A dual action trip and control valve is herein described which generally consists of a three way control valve which may be used to control the flow of fluid to and from a power piston. The valve is provided with a trip feature to cause the rapid dumping of the fluid from the power piston cylinder in response to the sensing of an emergency condition or the like.

REFERENCES:
patent: 1209796 (1916-12-01), Anderson
patent: 1275041 (1918-08-01), Kiesel, Jr.
patent: 2269835 (1942-01-01), Wallace et al.
patent: 2610647 (1952-09-01), Maglott
patent: 2630829 (1953-03-01), Shafer
patent: 3495501 (1970-02-01), Kurf-Jensen
patent: 3765642 (1973-10-01), Nelson
patent: 3939870 (1976-02-01), Giugliano

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