Flagged blown fuse indicator

Details Flagged blown fuse indicator Flagged blown fuse indicator

1989-11-30

1991-10-08

Broome, Harold

Electricity: electrothermally or thermally actuated switches

Electrothermally actuated switches

Fusible element actuated

337241, 337244, H01H 8530

Patent

active

050558188

ABSTRACT:
The blown fuse indicator is mounted to one of the opposed ferrules of a fuse and ejects a streamer therefrom in response to a blown or open fuse condition. The streamer is a strip of vinyl which is secured at one end to a plunger held within a housing mounted on one of the ferrules, and at its other end to a container which is ejected from the housing by the plunger in response to a fuse opening whereby the streamer unfurls to indicate the fuse is blown and open.

REFERENCES:
patent: 817959 (1906-04-01), Craft
patent: 891323 (1908-06-01), Brown
patent: 1382989 (1921-06-01), Lee
patent: 1782089 (1930-11-01), Baumer
patent: 2086406 (1937-07-01), Dieffenbacher
patent: 2193203 (1940-03-01), Mosley
patent: 2239903 (1941-04-01), Schultz
patent: 2413563 (1946-12-01), Hermann
patent: 4323874 (1982-04-01), Link
patent: 4420735 (1983-12-01), Muench, Jr.
patent: 4506249 (1985-03-01), Huber et al.

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