US PATENT SUBCLASS 91 / 456
.~.~ One valve moves about an axis


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}
456.~.~ One valve moves about an axis


DEFINITION

Classification: 91/456

(under subclass 454) Apparatus in which the movable flow controlling part of at least one of said two valves oscillates or rotates about a fixed axis to perform its valving function.

SEE OR SEARCH THIS CLASS, SUBCLASS:

270, for cyclically operable expansible chamber motors having relatively movable inlet and exhaust valves movable about an axis.