Motors: expansible chamber type – With motive fluid valve – Two hand control
Patent
1992-04-10
1995-01-10
Look, Edward K.
Motors: expansible chamber type
With motive fluid valve
Two hand control
91448, 91468, 91442, 91462, F15B 1108
Patent
active
053796799
ABSTRACT:
The present invention comprises a double acting actuator having a piston movable within a cylinder, a main poppet control valve connected to a fluid pressure source, and first and second poppet valves connected in series to a rod side chamber of the cylinder. The piston is extended upon actuation of both first and second poppet valves, while allowing retraction of the piston upon release of either the first or the second poppet valves.
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Broucksou Robert
Falter Ronald C.
Blish Nelson A.
Cooper Industries Inc.
Look Edward K.
Ryznic John
Scott Eddie E.
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