US PATENT SUBCLASS 338 / 36
.~ Fluid- or gas pressure-actuated

Current as of: June, 1999
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338 /   HD   ELECTRICAL RESISTORS

13  DF  RESISTANCE VALUE RESPONSIVE TO A CONDITION {10}
36.~ Fluid- or gas pressure-actuated {6}
37  DF  .~.~> Vehicle tire inflation
38  DF  .~.~> Liquid resistance element or contact
39  DF  .~.~> Piston
40  DF  .~.~> Bourdon tube
41  DF  .~.~> Bellows or capsule
42  DF  .~.~> Diaphragm

DEFINITION

Classification: 338/36

(under subclass 13) Subject matter wherein the condition sensed is fluid or gas pressure and the resistor actuator engages this fluid or gas and is mechanically moved or deformed by the pressure of this fluid or gas.

SEE OR SEARCH THIS CLASS, SUBCLASS:

4, for strain gauge resistors which are fluid or gas actuated.

33, for float actuated resistors.

SEE OR SEARCH CLASS

73, Measuring and Testing, 290+, for liquid depth gauges; and subclasses 700+ for fluid pressure gauges.

340, Communications: Electrical,

603+, for fluent material operated alarms.