US PATENT SUBCLASS 417 / 41
.~.~.~ Controlling motive fluid or drive motor

Current as of: June, 1999
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417 /   HD   PUMPS

1  DF  CONDITION RESPONSIVE CONTROL OF PUMP DRIVE MOTOR {22}
36  DF  .~ Responsive to accumulation of pumped liquid in receiver {4}
40  DF  .~.~ By float {1}
41.~.~.~ Controlling motive fluid or drive motor

DEFINITION

Classification: 417/41

(under subclass 40) Subject matter in which the pump is driven by a fluid motor and the control means acts to control the flow of fluid to said motor.