Electrical circuit breaking device

Details Electrical circuit breaking device Electrical circuit breaking device

1985-11-06

1987-10-13

Pellinen, A. D.

Electricity: electrical systems and devices

Safety and protection of systems and devices

Circuit interruption by thermal sensing

361124, 337290, H02H 902

Patent

active

047002590

ABSTRACT:
A circuit breaking device which comprises an elongate conductive element located within a casing and connected in series with a helical spring. The spring exerts a tensile load on the conductive element, and the conductive element is formed from a material such as copper which will yield and fracture mechanically under the influence of the tensile load when the conductive element is subjected to a current induced heating level greater than a predetermined level.

REFERENCES:
patent: 1157919 (1915-10-01), Arsem
patent: 2276184 (1942-03-01), Garrison et al.
patent: 2548491 (1951-04-01), Peek, Jr.
patent: 3747041 (1973-07-01), Cameron
patent: 3909765 (1975-09-01), Link

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