Rotary spring-return actuator with safety feature

Details Rotary spring-return actuator with safety feature Rotary spring-return actuator with safety feature

F - Mech Eng,Light,Heat,Weapons

03

G

251/18

F03G 1/00 (2006.01) F16K 31/00 (2006.01) G05G 17/00 (2006.01)

Patent

CA 1083121

ABSTRACT OF THE DISCLOSURE The present invention provides a rotary spring-return actuator which includes a housing, a schaft rotatably journaled therein, and spring means interposed between and secured relative to said shaft and the interior of the housing; the improvement which comprises a clutch plate having means to limit the amount of rotational movement of said shaft relative to said clutch plate interposed between said shaft and housing, and means to selectively lock said clutch plate relative to said housing against the counterforce of the spring means for subjecting said shaft to predetermined spring tension.

294817

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