US PATENT SUBCLASS 417 / 6
.~.~.~.~.~ With additional means sensing condition of one pump or path

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  DF  .~.~.~ Having means sensing condition in common inflow or outflow line {1}
5  DF  .~.~.~.~ With control of plural pump drive motors {2}
6.~.~.~.~.~ With additional means sensing condition of one pump or path

DEFINITION

Classification: 417/6

(under subclass 5) Subject matter in which there is an additional sensing means to sense a condition or change in condition in either (1) a fluid flow line which is peculiar to a single pump, or (2) a pump which is peculiar to a single flow line, said additional sensing means serving to effect operation of the same or different control means.