US PATENT SUBCLASS 337 / 224
.~.~.~ Against corona (e.g., shield)

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}
222  DF  .~.~ With switch protective means (for fuse structure) {2}
224.~.~.~ Against corona (e.g., shield)

DEFINITION

Classification: 337/224

(under subclass 222) Subject matter comprising means whereby the fusible element actuated switch device is protected against damage due to the ionization of the surrounding atmosphere, caused by a voltage gradient above a critical value. These devices, for the most part, comprise corona shields.

SEE OR SEARCH THIS CLASS, SUBCLASS:

199, for fusible element switch having a housing, casing, or support with electrical ground, shield or barrier.

SEE OR SEARCH CLASS

174, Electricity: Conductors and Insulators,

127, for conductor structure with corona prevention.