US PATENT SUBCLASS 417 / 20
.~.~ One condition is rate of flow to or from pump

Current as of: June, 1999
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417 /   HD   PUMPS

1  DF  CONDITION RESPONSIVE CONTROL OF PUMP DRIVE MOTOR {22}
18  DF  .~ Single motor control element responsive to means sensing diverse conditions {4}
20.~.~ One condition is rate of flow to or from pump

DEFINITION

Classification: 417/20

(under subclass 18) Subject matter in which one of the plural conditions to which the sensing means responds is a change in rate of pump fluid flow to, or from the pump.