Electrical wire cutting circuit breaker

Details Electrical wire cutting circuit breaker Electrical wire cutting circuit breaker

1976-04-14

1977-06-14

Hickey, Robert J.

Electricity: electrothermally or thermally actuated switches

Thermally actuated switches

With fusible, combustible or explosive material

83580, 200 6108, 361103, H01H 3776, H01H 7120

Patent

active

040300617

ABSTRACT:
An electrical wire cutting circuit breaker in which a wire cutting piston within a housing moves from a rest position to a wire cutting position under the impetus of a compression spring. The piston is normally retained in its rest position against the force of the compression spring by a retainer held in the path of the piston by a fusible stop. The retainer is resiliently biased out of the path of the piston so that when the fusible stop melts and flows at a predetermined elevated temperature the retainer will release the piston which is propelled by the compression spring and builds up kinetic energy sufficient to cut an electrical wire.

REFERENCES:
patent: 2747667 (1956-05-01), Schaming
patent: 3003045 (1961-10-01), Tichenor
patent: 3155800 (1964-11-01), Denton

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