US PATENT SUBCLASS 417 / 4
.~.~.~ Having means sensing condition in common inflow or outflow line

Current as of: June, 1999
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417 /   HD   PUMPS

1  DF  CONDITION RESPONSIVE CONTROL OF PUMP DRIVE MOTOR {22}
2  DF  .~ Plural pumps having separate drive motors, supply sources, or delivery destinations {1}
3  DF  .~.~ Pumps in parallel flow paths with common inflow or outflow {1}
4.~.~.~ Having means sensing condition in common inflow or outflow line {1}
5  DF  .~.~.~.~> With control of plural pump drive motors {2}

DEFINITION

Classification: 417/4

(under subclass 3) Subject matter in which sensing means is operative to sense a condition or change of condition occurring in the fluid in the common flow line joining either the pump inlets or pump outlets.