US PATENT SUBCLASS 337 / 218
.~.~.~ Combined with contact 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}
217  DF  .~.~ Fuse link extraction or expulsion means {3}
218.~.~.~ Combined with contact structure

DEFINITION

Classification: 337/218

(under subclass 217) Subject matter wherein the fuse link extraction means is specifically described as cooperatively combined with or forming an integral part of at least one contact means which acts to complete the electrical circuit when the fuse is in the unblown condition.

(1) Note. In the fuse tensioning means in subclass 190, the flexible main live contact members act when engaged with the fuse to maintain the fuse link in a state of tension, but no means is provided for withdrawing the fuse link except the effect of gravity. In the devices in subclass 218 a further positive means, for physically withdrawing the fuse link, is combined with the movable contact and performs its function independently of the circuit opening operation.