Motor operated valve

Details Motor operated valve Motor operated valve

1984-11-11

1985-12-03

Rosenthal, Arnold

Valves and valve actuation

Electrically actuated valve

Rotary electric actuator

251368, F16K 3104

Patent

active

045561940

ABSTRACT:
An electrically operated valve is provided including a motor securely and non-rotatably mounted to the valve and in communication with the valve stem. A cam also is mounted to the valve stem. A limit switch with a cam follower is mounted to the motor gear housing at a plurality of locations so as to assure non-rotatability. The cam follower is disposed to contact and follow the cam, and to provide a signal for stopping the rotation of the valve stem.

REFERENCES:
patent: 2761331 (1956-09-01), Buescher
patent: 2943706 (1960-07-01), Morgan
patent: 3216449 (1965-11-01), Maudlin et al.
patent: 4398562 (1983-08-01), Saarem et al.

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