Rotary valve actuator

Details Rotary valve actuator Rotary valve actuator

2005-10-28

2009-10-27

Hepperle, Stephen (Department: 3753)

Valves and valve actuation

Mechanical movement actuator

Gear

C251S294000, C074S089210

Reexamination Certificate

active

07607640

ABSTRACT:
A rotary valve actuator that effects rotary movement of a rotary valve includes a heavy plate member coupled with a linear motive source, which reciprocates the plate member between a first position and a second position. A first pair of flexible pull connectors, such as lengths of roller chain, are attached to the end of the plate member, and wrap around a wheel. At least one second flexible pull connector is disposed between said first flexible pull connectors and is attached to the other end of the plate member, and wraps around the wheel in the opposite direction of winding as for the first flexible connector.

REFERENCES:
patent: 1363034 (1920-12-01), Bosworth
patent: 2983479 (1961-05-01), Thomas
patent: 3272050 (1966-09-01), Barley
patent: 4003484 (1977-01-01), Jones et al.
patent: 4366722 (1983-01-01), Hasler
patent: 4596377 (1986-06-01), Taylor

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