Vane type valve actuator

Details Vane type valve actuator Vane type valve actuator

1980-08-05

1983-04-12

Maslousky, Paul E.

Valves and valve actuation

Fluid actuated or retarded

Rotary or oscillatory motor

92 63, 92121, 92129, 92130A, 92130C, F01C 900, F16J 110

Patent

active

043795439

ABSTRACT:
In the preferred and illustrated embodiment of a valve actuator, a vane type fail safe actuator is disclosed. The actuator comprises a housing enclosing a vane which is integral with a shaft extending through the housing to a rotary operable valve. Fail safe operation is provided by a spring return mechanism connected to the housing. Compressed air is utilized to operate the actuator and the spring return mechanism which assures complete valve closure when the air supply fails or is reduced below a predetermined minimum setting.

REFERENCES:
patent: 593996 (1897-11-01), Fish
patent: 2984405 (1961-05-01), Stump
patent: 2988058 (1961-06-01), Warnecke
patent: 3051143 (1962-08-01), Nee
patent: 3136227 (1964-06-01), Williams
patent: 3824901 (1974-07-01), Shafer
patent: 4087074 (1978-05-01), Mossey et al.

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