US PATENT SUBCLASS 417 / 42
.~ In response to pump speed

Current as of: June, 1999
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417 /   HD   PUMPS

1  DF  CONDITION RESPONSIVE CONTROL OF PUMP DRIVE MOTOR {22}
42.~ In response to pump speed

DEFINITION

Classification: 417/42

(under subclass 1) Subject matter in which the sensing means senses the rate of speed at which the pump is driven.

SEE OR SEARCH THIS CLASS, SUBCLASS:

22+, for a single motor control element which is operated in response to means sensing diverse conditions, one of said diverse conditions being the speed of the pump.