US PATENT SUBCLASS 91 / 458
.~ Speed governor operated (366)

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

418  DF  WITH MOTIVE FLUID VALVE {32}
458.~ Speed governor operated (366)

DEFINITION

Classification: 91/458

(under subclass 418) Apparatus in which the valve means is actuated by a means which is driven from a rotating shaft and the actuation of the valve means varies in accordance with the speed at which the rotating shaft is driven.

SEE OR SEARCH THIS CLASS, SUBCLASS:

366, for expansible chamber motors having working member position feedback to the motive fluid control valve means in which the input control signal is derived from a speed governor. NOTE "PLACEMENT OF PATENTS" IN OF THE CLASS DEFINITION AND THE PARAGRAPH FOLLOWING THE TITLE IN THE SCHEDULE OF THIS CLASS.

435, for expansible chamber motor valve means controlled by the rate of movement of the working member and see the subclasses noted thereunder for other speed controlled valve means.