US PATENT SUBCLASS 91 / 470
.~.~ 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}
469  DF  .~ Unitary inlet and exhaust valve for single working chamber {1}
470.~.~ Valve moves about an axis

DEFINITION

Classification: 91/470

(under subclass 469) Apparatus in which the inlet and exhaust valve oscillates or rotates about a fixed axis to perform the valving function.

SEE OR SEARCH THIS CLASS, SUBCLASS:

467, for double acting expansible chamber motors having unitary inlet and exhaust valve means movable about an axis and see the subclasses there noted for cyclically operable motors with distributors which move about an axis.