Fuseless plug with safety circuit breaker

Details Fuseless plug with safety circuit breaker Fuseless plug with safety circuit breaker

1995-10-24

1997-05-27

Picard, Leo P.

Electricity: electrothermally or thermally actuated switches

Electrothermally actuated switches

With bimetallic elements

337 66, 337 79, 337 91, H01H 7116, H01H 7104, H01H 6100

Patent

active

056336187

ABSTRACT:
A fuseless plug with an overload safety circuit breaker having a thermal reactive spring leaf and an electric conductive sheet. When in normal use, the thermal reactive spring leaf and the electric conductive sheet are electrically connected by contacting mutually. If overloading or short circuiting occurs, the temperature will rise, while the thermal reactive spring leaf made of an alloy of two kinds of metal material has different coefficients of temperature, so that the spring leaf will be bent outwardly to release the electric conductive sheet to form a broken circuit state and to assure that no disaster such as a fire alarm will occur. After clearing, a push button can be pushed down to force the electric conductive sheet into engagement again with the spring leaf for use.

REFERENCES:
patent: 3681730 (1972-08-01), Fortino
patent: 4347494 (1982-08-01), Krasser
patent: 4814739 (1989-03-01), Moldovan
patent: 5153552 (1992-10-01), Krasser
patent: 5248954 (1993-09-01), Chiang
patent: 5453725 (1995-09-01), You
patent: 5513063 (1996-04-01), Wu
patent: 5526225 (1996-06-01), Wang

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