Locking system

Details Locking system Locking system

F - Mech Eng,Light,Heat,Weapons

16

K

251/20

F16K 31/53 (2006.01) F16K 31/54 (2006.01)

Patent

CA 1109444

VALVE ACTUATOR Abstract of the Disclosure. An automatic motorized valve actuator is disclosed which features a worm gear drive assembly for receiving high rotational motion of a drive motor and reducing it to the low speed linear or rotational motion of a valve stem. A coaxial alignment of the motor shaft, the worm gear shaft and a manual operator shaft eliminates the need for a separate shifting assembly for shifting from motorized to manual operating mode. The invention further discloses clutches for operationally connecting the various shafts, a sliding lockout rod assembly for preventing simultaneous engagement of manual and motor operating modes, magnetic motor engagement and disconnect means, and resilient torque sensing means for shutting off power to the motor.

355849

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