Lighted circuit breaker

Details Lighted circuit breaker Lighted circuit breaker

1980-07-14

1982-08-03

Beha, Jr., William H.

Electricity: electrothermally or thermally actuated switches

Electrothermally actuated switches

With bimetallic elements

337 66, 337 79, H01H 7314

Patent

active

043429793

ABSTRACT:
A circuit breaker is provided of the push-pull type for use in the cockpit of an aircraft wherein the plunger of the circuit breaker is illuminated upon the opening of a circuit. The illumination immediately attracts the pilot's attention so that corrective action can be taken. A bi-metallic strip bows when it is heated due to overloading of the circuit causing the plunger to be extended and to complete a secondary circuit to a light located within the head of the plunger. A number of the circuit breakers are electrically interconnected to provide a visual indication to the pilot that a fault condition has occurred in one of the monitored aircraft circuits. In addition, an indicator is available to inform the pilot that a second fault condition has occurred subsequent to the occurrence of a first fault condition while the first fault condition remains.

REFERENCES:
patent: 2439338 (1948-04-01), Fuge et al.
patent: 2780801 (1957-02-01), Tyler
patent: 3169239 (1965-02-01), Lacey
patent: 3356816 (1967-12-01), Clarke

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