Light emitting diode blown circuit breaker indicator

Details Light emitting diode blown circuit breaker indicator Light emitting diode blown circuit breaker indicator

1976-10-05

1977-11-01

Caldwell, Sr., John W.

Communications: electrical

Systems

Call station

335 17, 337 79, 3402271, 340248C, G08B 2100

Patent

active

040568164

ABSTRACT:
This is a blown circuit indicator for a conventional circuit breaker of either bimetallic overload responsive type. It consists of a circuit parallel with the load circuit and which is completed by the overload responsive member when in overload responsive position. This parallel circuit includes a resistor and a light emitting diode positioned remotely from the overload responsive member in a normally visible edge of the casing of the circuit breaker.

REFERENCES:
patent: 1649011 (1927-11-01), Bakken
patent: 1840114 (1932-01-01), Lazich
patent: 2003686 (1935-06-01), Giaimo
patent: 2223530 (1940-12-01), Putman
patent: 2460759 (1949-02-01), Lawson
patent: 2693515 (1954-11-01), Hodnette et al.
patent: 2698429 (1954-12-01), Treanor
patent: 2704841 (1955-03-01), Van Ryan
patent: 3088009 (1963-04-01), Perez Del Valle
patent: 3562733 (1971-02-01), Murphy et al.
patent: 3742402 (1973-06-01), Nicol et al.

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