Actuator device

Details Actuator device Actuator device

1977-11-21

1979-03-20

Gerin, Leonard H.

Machine element or mechanism

Gearing

Rotary bodies

74421R, 251249, F16H 5504, F16H 112, F16K 3144

Patent

active

041447743

ABSTRACT:
An actuator assembly particularly useful for operating butterfly, ball or plug type valves is disclosed herein and comprises a relatively efficient gear train including first means for coupling the gear train to a drive member and a pinion in driving engagement with a sector gear of limited circumferential extent formed on a periphery, preferably an inner periphery, of a generally triangular sector member. At the vertex of the sector member opposite the sector gear there is provided a rotatably mounted drive member for driving the stem of an associated valve member as it rotates. Accordingly, as the sector gear is driven, the drive member rotates the valve stem to open or close the valve. The input gear train includes a non-reversing coupling means adjacent the first coupling means whereby the drive member can rotate the sector member and, thus, the valve stem, but external forces on the output side of the non-reversing coupling means cannot cause rotation of the valve stem.

REFERENCES:
patent: 3472082 (1969-10-01), Juvan
patent: 4063710 (1977-12-01), Minami et al.
patent: 4065980 (1978-01-01), Ichinose

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