US PATENT SUBCLASS 60 / 391
.~.~ Feedback linkage controls variable displacement pump

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

325  DF  PRESSURE FLUID SOURCE AND MOTOR {47}
388  DF  .~ Full range correspondence of position of external manipulator and motor positioned member effected by feedback linkage {4}
391.~.~ Feedback linkage controls variable displacement pump

DEFINITION

Classification: 60/391

(under subclass 388) Apparatus in which movement of the manipulator initiates the delivery of motive fluid to the output motor from a variable displacement pump by changing the displacement from zero, the linkage from the output member returning the displacement to zero upon the attainment of the selected position.