US PATENT SUBCLASS 136 / 200
THERMOELECTRIC

Current as of: June, 1999
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136 /   HD   BATTERIES: THERMOELECTRIC AND PHOTOELECTRIC

200THERMOELECTRIC {15}
201  DF  .~> Processes
202  DF  .~> Nuclear energy type
203  DF  .~> Peltier effect device {1}
205  DF  .~> Electric power generator {5}
213  DF  .~> Radiation pyrometer {2}
217  DF  .~> Including a pilot burner {3}
221  DF  .~> Including means to resiliently press junction element against sensed surface
222  DF  .~> Including means to standardize nonsensing junction by heating or cooling
223  DF  .~> Having an evacuated space
224  DF  .~> Thermopile {3}
228  DF  .~> One junction element surrounded by another junction element
229  DF  .~> Having additional contact means for sensing solid work
230  DF  .~> Having housing, mounting or support {3}
236.1  DF  .~> Having particular thermoelectric composition {5}
242  DF  .~> Adjuncts

DEFINITION

Classification: 136/200

(under the class definition) Process or apparatus directed to the conversion of heat directly to electricity.

(1) Note. A device which structure-wise could convert heat to electricity but which is intended to operate vice-versa is included herein (see subclasses 203+).

(2) Note. Subcombinations of thermal generators which are specifically designed to be used therewith (e.g., thermo-couple housings, wells, etc.) are included herein (see subclass 242).

SEE OR SEARCH CLASS

29, Metal Working, particularly

592.1+, for methods of mechanically manufacturing electrical devices.

62, Refrigeration, 3.1+, for Peltier effect refrigeration apparatus; also, see note to Class 62 in subclass 203 below.

75, Specialized Metallurgical Processes, Compositions for Use Therein, Consolidated Metal Powder Compositions, and Loose Metal Particulate Mixtures, and 420, Alloys or Metallic Compositions, for thermoelectric alloys.

148, Metal Treatment,

33+, for barrier layer stock material.

204, Chemistry: Electrical and Wave Energy,

196, for object protection systems utilizing a thermoelectric battery.

250, Radiant Energy,

336.1+, for invisible radiant energy responsive electric signalling devices which detect the presence of, or measures the quantity or quality of invisible radiation and subclasses 200+ for visible radiation pyrometers including circuit structure for the generated voltage.

252, Compositions, for thermoelectric compositions particularly

62.3, for barrier layer device compositions and subclasses 500+ for electrically conductive and emissive compositions.

257, Active Solid-State Devices (e.g., Transistors, Solid-State Diodes), 53, 56, 108, 414, and 467-470 for such as temperature responsive devices, per se.

310, Electrical Generator or Motor Structure,

306, for thermal or pyromagnetic generating devices wherein there is additional control means for the generated power current. Also, subclass 306 for thermionic device, per se, or in combination with a thermoelectric device.

322, Electricity: Single Generator Systems,

2, for generating systems including thermoelectric device.

324, Electricity: Measuring and Testing, for electrical measuring devices including a thermoelectric generator.

327, Miscellaneous Active Electrical Nonlinear Devices, Circuits, and Systems,

512+, for miscellaneous thermally effected circuits.

361, Electricity: Electrical Systems and Devices,

161+, for electric circuits for relays and electromagnets which may include a thermal battery.

373, Industrial Electric Heating Furnaces,

135+, for electric furnace with control system employing a thermoelectric generator. 374, Thermal Measuring and Testing, for a thermal battery combined with a measuring circuit, particularly

179+, for a thermocouple thermometer.

420, Alloys or Metallic Compositions, appropriate subclasses for thermoelectric alloys.

428, Stock Material or Miscellaneous Articles,

615+, for a metallic composite defined in terms of the composition of its components.

431, Combustion,

80, for a thermoelectric current generator operated by a burner and having the burner controlled by the generated current.

438, Semiconductor Device Manufacturing: Process,

54+, for processes of making a thermoelectric semiconductor device.

445, Electric Lamp or Space Discharge Component or Device Manufacturing;

1+, for a miscellaneous process of making a space discharge device.