US PATENT SUBCLASS 60 / 443
.~ Servo-motor having externally operated control valve sets motor or pump displacement

Current as of: June, 1999
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60 /   HD   POWER PLANTS

325  DF  PRESSURE FLUID SOURCE AND MOTOR {47}
443.~ Servo-motor having externally operated control valve sets motor or pump displacement {1}
444  DF  .~.~> Having auxiliary pump or external source of motive fluid supplying servo motor

DEFINITION

Classification: 60/443

(under subclass 325) Apparatus in which the displacement of the input pump or output motor of a pressure fluid source-motor system is adjusted by an externally operated servo-motor.

SEE OR SEARCH THIS CLASS, SUBCLASS:

389, for a displacement controlling servo-motor having feedback linkage to the manipulating lever.