US PATENT SUBCLASS 337 / 4
.~ Fusible element device with other

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

2  DF  WITH SEPARATE DISTINCT DIVERSE ART-TYPE SWITCHING DEVICE (E.G., FLUID- OR MECHANICAL-ACTUATED) {2}
4.~ Fusible element device with other {4}
5  DF  .~.~> Diverse art-type switching device responsive to the condition of fusible element
6  DF  .~.~> With automatic circuit-interrupting device {1}
8  DF  .~.~> Manually operable mechanical device {2}
11  DF  .~.~> With multiple circuit connector device (e.g., multiple mechanical)

DEFINITION

Classification: 337/4

(under subclass 2) Subject matter wherein the art type switch comprises or utilizes a device capable of melting and thereby causing the interruption of an electric circuit when abnormally heated by the current in the electrical circuit.

SEE OR SEARCH THIS CLASS, SUBCLASS:

142+, for electrothermal switches of the fusible type.

299, for thermally actuated fuses combined with diverse similar art type devices.

401+, for thermal switches utilizing fuses for the principal operating means.

SEE OR SEARCH CLASS

218, High-Voltage Switches With Arc Preventing and Extinguishing Devices,

22+, for mechanical magnetic blowout switches which may employ fusible elements.

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

142, for magnetically operated switches with fuses.

361, Electricity: Electrical Systems and Devices, appropriate subclasses for safety and protection devices which may utilize fuses combined with mechanical means.