US PATENT SUBCLASS 337 / 282
.~.~.~ Arcing chamber or passage structure

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

14  DF  ELECTROTHERMALLY ACTUATED SWITCHES {9}
142  DF  .~ Fusible element actuated {15}
273  DF  .~.~ With arc suppression or extinguishing means {6}
282.~.~.~ Arcing chamber or passage structure

DEFINITION

Classification: 337/282

(under subclass 273) Subject matter including significant details of chamber or passage structure wherein the arcing is confined or caused to take place or into which it is drawn for purposes of extinction.

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275, for structure including an arc draw out rod operating in an arcing chamber, usually a cylindrical cavity.

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

1+, for similar structure in a mechanical circuit breaker device.