US PATENT SUBCLASS 340 / 592
.~.~.~ Expanding fluid sensor

Current as of: June, 1999
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340 /   HD   COMMUNICATIONS: ELECTRICAL

500  DF  CONDITION RESPONSIVE INDICATING SYSTEM {6}
540  DF  .~ Specific condition {18}
584  DF  .~.~ Thermal {8}
592.~.~.~ Expanding fluid sensor

DEFINITION

Classification: 340/592

Expanding fluid sensor:

(under subclass 584) Subject matter wherein the thermal condition is sensed by the expansion of a given mass of fluid.

(1) Note. The expansion may be sensed by an increase in either pressure or volume.

SEE OR SEARCH CLASS

337, Electricity: Electrothermally or Thermally Actuated Switches,

306+, for an expanding fluid actuated thermally responsive switch.

374, Thermal Measuring and Testing,

201+, for an expanding fluid thermometer.