US PATENT SUBCLASS 337 / 139
.~.~ With significant expansible element structure or composition of material

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

14  DF  ELECTROTHERMALLY ACTUATED SWITCHES {9}
123  DF  .~ With longitudinally expansible solid element (e.g., rod, wire strip, etc.) {7}
139.~.~ With significant expansible element structure or composition of material {1}
140  DF  .~.~.~> Wire or other stranded element

DEFINITION

Classification: 337/139

(under subclass 123) Subject matter relating specifically to the physical structure or the composition of matter utilized in the longitudinally deformable thermal responsive element or elements.

SEE OR SEARCH THIS CLASS, SUBCLASS:

393+, for similar subject matter in thermally actuated switches.

SEE OR SEARCH CLASS

60, Power Plants,

516+, for thermal motors with expansion and contraction devices.

310, Electrical Generator or Motor Structure, 306, for nondynamo-electric thermal motors.

361, Electricity: Electrical Systems and Devices,

161+, for thermo-electric devices in control circuits for electromagnets.

374, Thermal Measuring and Testing,

187+, for a thermometer having an expanding solid sensor.

428, Stock Material or Miscellaneous Articles,

616+, for composite metallic stock having heat-deflectable

characteristics.