Butterfly actuator

Details Butterfly actuator Butterfly actuator

1989-12-12

1990-12-25

Fox, John C.

Valves and valve actuation

Mechanical movement actuator

Cam

74569, 384147, F16K 100

Patent

active

049797220

ABSTRACT:
A butterfly actuator is provided and has a pair of spaced apart cams which move a valve stem wherein the cams are integral with a shaft having one portion having a generally cylindrical outer surface which is rotatably mounted in a bearing sleeve fixedly mounted in a housing mounted at a fixed location and wherein the bearing sleeve has a length which is between about 2.0 and 3.5 times the diameter of the generally cylindrical outer surface. A butterfly actuator is mounted on an end portion of the shaft so that movement of the butterfly actuator rotates the shaft and is formed from a metallic material to provide for an extended life period of useful operation.

REFERENCES:
patent: 3193335 (1965-07-01), Wing
patent: 3415581 (1968-12-01), Seubert
patent: 3626498 (1971-12-01), Rihm
patent: 4320777 (1982-03-01), Tomlin et al.

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