US PATENT SUBCLASS 337 / 326
.~.~ Fluid or fluid pressure generating means

Current as of: June, 1999
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337 /   HD   ELECTRICITY: ELECTROTHERMALLY OR THERMALLY ACTUATED SWITCHES

298  DF  THERMALLY ACTUATED SWITCHES {7}
306  DF  .~ Expansible or vaporizable fluid actuated {12}
326.~.~ Fluid or fluid pressure generating means

DEFINITION

Classification: 337/326

(under subclass 306) Devices relating specifically to a particular temperature responsive fluid or fluid generating means whereby pressure is generated sufficient to actuate contact control means upon the application of heat to the device.

SEE OR SEARCH CLASS

374, Thermal Measuring and Testing,

159, for a thermometer having a fluid undergoing a change of state (e.g., volatile), or having a temperature responsive sorption effect; and subclasses 201+ for other expanding fluid thermometers.