Fail safe actuator

Details Fail safe actuator Fail safe actuator

1982-05-17

1985-04-02

Cohen, Irwin C.

Power plants

Pressure fluid source and motor

Apparatus having means responsive to or ameliorating the...

60413, 60459, 91446, F15B 106, F15B 1115, F15B 13042

Patent

active

045079196

ABSTRACT:
A fail-safe actuator mechanism has an actuator housing encapsulated within a tank which stores a pressurized fluid media. Ports of the actuator housing are put into selective fluid communication with both the interior and exterior of the encapsulating tank by a valve at selective pressures.

REFERENCES:
patent: 3523489 (1970-08-01), Perkins
patent: 3572032 (1971-03-01), Terry
patent: 3645170 (1972-02-01), Varduxis
patent: 3752041 (1973-08-01), Smith
patent: 3893374 (1975-07-01), Hirasawa
patent: 4036106 (1977-07-01), Athy, Jr.
patent: 4039034 (1977-08-01), Wagner
patent: 4275642 (1981-06-01), Smith

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