US PATENT SUBCLASS 60 / 479
.~.~ Having selective or variable pump displacement or pump drive leverage

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

325  DF  PRESSURE FLUID SOURCE AND MOTOR {47}
477  DF  .~ Ram driven by fluid pumped from reservoir {4}
479.~.~ Having selective or variable pump displacement or pump drive leverage

DEFINITION

Classification: 60/479

(under subclass 477) Apparatus with structure by which the amount of motive fluid discharged from a pump means toward the ram for each revolution of the pump or for each equal length stroke of a pump handle may be selected or adjusted.