US PATENT SUBCLASS 337 / 102
.~.~ With external or auxiliary heating means

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

14  DF  ELECTROTHERMALLY ACTUATED SWITCHES {9}
36  DF  .~ With bimetallic elements (i.e., motion takes place in a plane at right angles to its major axis) {10}
102.~.~ With external or auxiliary heating means {4}
103  DF  .~.~.~> With heater-adjusting, shunting or short-circuiting means
104  DF  .~.~.~> Plural heating means
105  DF  .~.~.~> With electrical power supply or current control means {1}
107  DF  .~.~.~> Significant heating element structure or composition {1}

DEFINITION

Classification: 337/102

(under subclass 38) Subject matter including significant details of structure comprising heat generating or concentrating means; such as heating coils or high resistance elements, serving to augment the heating effect of the thermal current traversing the switch.

SEE OR SEARCH THIS CLASS, SUBCLASS:

23+, for fluorescent lamp starting device with heating means.

77, for electrothermal bimetallic switch with latch means having an auxiliary heater.

100, for electrothermal bimetallic switch with voltage or temperature compensation means.

120, for electrothermal expansible fluid actuated switch with

external heating means. 182+, for electrothermal fusible element switch with auxiliary or external heating means.

324, for thermal expansible fluid actuated switch with auxiliary heater.

377, for similar devices utilizing thermally responsive bimetallic elements and including electrical heating means which augments the heat derived from the ambient space surrounding the bimetallic element.

SEE OR SEARCH CLASS

60, Power Plants,

529, for the combination of a bimetallic thermostatic bar with electric heating means, per se.

62, Refrigeration,

4, for refrigerator control systems utilizing a bimetallic thermal element with electric heater means.

99, Foods and Beverages: Apparatus,

324+, for cooking apparatus with automatic control systems utilizing bimetallic elements with heaters.

123, Internal-Combustion Engines,

146.5, for bimetallic sparking devices with electric heaters. 200, Electricity: Circuit Makers and Breakers, appropriate subclasses, especially

3, and 52+ for mechanical switches utilizing thermal current responsive bimetallic elements with heater means.

219, Electric Heating,

511, for automatically operated switching devices for electric heaters, utilizing bimetallic elements with heaters.

236, Automatic Temperature and Humidity Regulation, appropriate subclasses, particularly

1, 46, and 68 for automatic temperature control systems utilizing bimetallic elements with external heating means.

290, Prime-Mover Dynamo Plants,

38, for electric starting motors with bimetallic switches with external heaters.

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

145, for electromagnetically operated switches, with bimetallic actuating means and having an external heater.