US PATENT SUBCLASS 417 / 28
.~.~ Fluid and motor controls have common sensing element

Current as of: June, 1999
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417 /   HD   PUMPS

1  DF  CONDITION RESPONSIVE CONTROL OF PUMP DRIVE MOTOR {22}
26  DF  .~ With condition responsive control of pump fluid valve {3}
28.~.~ Fluid and motor controls have common sensing element

DEFINITION

Classification: 417/28

(under subclass 26) Subject matter in which the valve means and the control means for the drive motor are both caused to be actuated by a sensing means having a single sensing part for detecting the occurrence of a condition or change of condition.

SEE OR SEARCH THIS CLASS, SUBCLASS:

23, for a common condition sensing element which causes operation of both a pump drive motor control element and a pump fluid control valve.