US PATENT SUBCLASS 60 / 452
.~.~ Pump displacement controlled by pump discharge or motor feed pressure

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

325  DF  PRESSURE FLUID SOURCE AND MOTOR {47}
445  DF  .~ Condition responsive control of pump or motor displacement {7}
452.~.~ Pump displacement controlled by pump discharge or motor feed pressure

DEFINITION

Classification: 60/452

(under subclass 445) Apparatus including a variable displacement pump the displacement of which is controlled by structure responsive to the pump discharge pressure.

SEE OR SEARCH CLASS

417, Pumps,

212+, for a pump having a condition responsive displacement adjusting means.