US PATENT SUBCLASS 337 / 288
.~.~.~.~.~ Transfer or interlock 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}
283  DF  .~.~ Plural independent fuses {1}
284  DF  .~.~.~ Selectively or sequentially inserted in same protected circuit {2}
285  DF  .~.~.~.~ Automatic selective means (e.g., repeater type) {2}
288.~.~.~.~.~ Transfer or interlock means

DEFINITION

Classification: 337/288

(under subclass 285) Subject matter wherein the selective structure includes significant details of means whereby the insertion of any one fuse in a circuit is dependent upon the condition of at least one other fuse or whereby the insertion of a second fuse is prevented for as long as one other previously inserted fuse is in operative condition.