US PATENT SUBCLASS 337 / 249
.~.~.~.~ With gas expulsion means

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}
227  DF  .~.~ Fuse link carrier or holder {2}
228  DF  .~.~.~ Cartridge or tube {9}
249.~.~.~.~ With gas expulsion means {1}
250  DF  .~.~.~.~.~> Venting, cooling or deionizing

DEFINITION

Classification: 337/249

(under subclass 228) Subject matter wherein the cartridge or tube structure includes significant details of means adapted

for the expulsion of any gas from the cartridge or tube resulting from the rupture or destruction of the fusible element, thereby facilitating the breaking of a protected circuit.

SEE OR SEARCH THIS CLASS, SUBCLASS:

203, for apparatus consisting of a electrothermally responsive fuse combined with a housing structure with means for expulsion or venting of gases from the housing.

281, for gaseous blowout means for arc suppression.