US PATENT SUBCLASS 91 / 455
.~.~ One valve forms unitary part of valve controlling opposed working chamber


Current as of: June, 1999
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91 /   HD   MOTORS: EXPANSIBLE CHAMBER TYPE

418  DF  WITH MOTIVE FLUID VALVE {32}
454  DF  .~ Relatively movable inlet and exhaust valves for single working chamber {3}
455.~.~ One valve forms unitary part of valve controlling opposed working chamber


DEFINITION

Classification: 91/455

(under subclass 454) Apparatus in which said two valves control the inlet and exhaust of one working chamber of a double acting motor and the movable flow controlling part of one of the valves moves as a unit with another movable flow controlling part of a valve which controls the flow of motive fluid to or from the other working chamber of the double acting motor.