US PATENT SUBCLASS 337 / 333
.~ With bimetallic element

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

298  DF  THERMALLY ACTUATED SWITCHES {7}
333.~ With bimetallic element {9}
334  DF  .~.~> With manual or other mechanical contact control means {10}
360  DF  .~.~> With operating range calibration or adjustment means {1}
362  DF  .~.~> Bimetallic element unitary with or directly actuates contacts {5}
373  DF  .~.~> Contact structure or composition of material (e.g., mercury) {1}
376  DF  .~.~> With signal or indicating means
377  DF  .~.~> With auxiliary heating means
378  DF  .~.~> With compensation means (e.g., ambient temperature)
379  DF  .~.~> Bimetallic element structure or composition of material
380  DF  .~.~> Housing, casing or support structure {1}

DEFINITION

Classification: 337/333

(under subclass 298) Subject matter including at least one thermal responsive composite element consisting of two different metals, bonded together, and having different coefficients of expansion, such that when heated, a bending motion of the composite element results. The resultant motion is utilized either directly or through an intermediate mechanical means to control the opening and/or closing of an electrical circuit.

SEE OR SEARCH THIS CLASS, SUBCLASS:

36+, for corresponding subject matter utilizing electrothermally responsive bimetallic elements.

SEE OR SEARCH CLASS

99, Foods and Beverages: Apparatus,

325+, for automatic control of food cooking utensils with bimetallic thermostatic control.

137, Fluid Handling, 457, and 468 for thermostatically controlled values.

219, Electric Heating,

494, and 510+ for automatic control, regulating or switch means for electric heaters utilizing bimetallic thermostats.

236, Automatic Temperature and Humidity Regulation,

5, 19, 33, 43, 59, and 96 for automatic temperature regulators utilizing bimetallic thermostats.

252, Compositions,

70, for thermostatic compositions.

314, Electric Lamp and Discharge Devices: Consumable Electrodes,

89+, for thermostatic operators for consumable electrodes.

315, Electric Lamp and Discharge Devices: Systems,

72, for flashers utilizing a bimetallic periodic switch.

318, Electricity: Motive Power Systems,

471+, for automatic motor control devices with thermostatic means.

320, Electricity: Battery or Capacitor Charging or Discharging,

166+, for charging or discharging a capacitor, per se.

322, Electricity: Single Generator Systems,

33+, for automatic controls responsive to thermal conditions.

335, Electricity: Magnetically Operated Switches, Magnets, and Electromagnets,

145, for electromagnetic switches with bimetallic element.

340, Communications: Electrical,

593+, for automatic alarms responsive to temperature and utilizing thermostats.

361, Electricity: Electrical Systems and Devices,

103+, and 124+ for thermally actuated safety and protective devices comprising bimetallic elements. 374, Thermal Measuring and Testing,

205+, for expanding solid type thermometers utilizing bimetallic elements.

428, Stock Material or Miscellaneous Articles,

616+, for composite metallic stock having heat-deflectable characteristics.