Electrical fuse with self-centering fuse element and method for

Details Electrical fuse with self-centering fuse element and method for Electrical fuse with self-centering fuse element and method for

1990-01-16

1991-03-26

Broome, H.

Electricity: electrothermally or thermally actuated switches

Electrothermally actuated switches

Fusible element actuated

337232, 337248, H01H 85143, H01H 85165

Patent

active

050032810

ABSTRACT:
A cylindrical cartridge-type fuse has terminal end caps configured to provide insertion-limiting shoulders arresting the movement of the insulating fuse housing sleeve into the caps during assembly, and further configured with solder-retaining wells having surfaces configured to aligningly guide an inserted fuse element into a generally central location when the sleeve and fuse element are forced into the cap with the solder in a molten condition. Accidental solder voiding arising from the displacement caused by the sleeve and the fuse element is eliminated, and a centered fuse element is provided, secured by an adequate mass of solder therearound. Additional mechanical strength is optionally imparted to the system by coating the finished structure with an adherent plastic or resin material.

REFERENCES:
patent: 797324 (1905-08-01), Sachs
patent: 3529270 (1970-09-01), Kozacka
patent: 4159458 (1979-06-01), Wiebe
patent: 4385281 (1983-05-01), McAlear et al.

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