Quick-acting fuse

Details Quick-acting fuse Quick-acting fuse

H - Electricity

01

H

306/157

H01H 85/04 (2006.01) H01H 85/18 (2006.01)

Patent

CA 1166673

QUICK-ACTING FUSE Abstract of the Disclosure A quick-acting fuse comprising a fuse base encased within an insulated fuse cartridge. The fuse base consists of a lower insulating plastic (phenolic) plate and an upper conductive metal (copper) plate coextensively bonded to the lower plate. The fuse base has an enlarged mid-section of generally hexagonal or polygonal configuration which necks down on both sides to a pair of projecting arms whose ends are soldered to end caps used to seal the fuse cartridge when the fuse base is placed therein. The mid-section of the fuse has a generally elliptical hole and the upper metallic plate is partially etched away around said hole so as to provide a pair of spaced-apart and opposed conductive ter- minals. A pair of opposed grooves is provided, one at each end of said conductive terminals, and a fusible element is stretched between said grooves across said generally elliptical hole. A solder pool is provided next to each groove for quantitative soldering the ends of the fusible element.

361634

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