US PATENT SUBCLASS 73 / 1.23
.~.~.~ With position sensing switch

Current as of: June, 1999
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73 /   HD   MEASURING AND TESTING

1.01  DF  INSTRUMENT PROVING OR CALIBRATING {13}
1.16  DF  .~ Volume of flow, speed of flow, volume rate of flow, or mass rate of flow {12}
1.19  DF  .~.~ Piston {3}
1.23.~.~.~ With position sensing switch

DEFINITION

Classification: 73/1.23

With position sensing switch:

(under subclass 1.19) Subject matter including a means for

opening or closing an electrical circuit or for diverting current from one conductor to another conductor in response to a change in position of the piston.

SEE OR SEARCH CLASS

200, Electricity: Circuit Makers and Breakers,

61.04+, for a liquid level responsive switch.