Circuit breaker indicator

Details Circuit breaker indicator Circuit breaker indicator

1984-09-25

1987-03-24

Rowland, James L.

Communications: electrical

Condition responsive indicating system

Specific condition

335 17, 337 79, 340691, G08B 2100

Patent

active

046528679

ABSTRACT:
A blown circuit breaker indicator utilizing an illuminating device such as a light-emitting diode for indicating whether either a thermal electrical or magnetic circuit breaker has been tripped. The indicating device is provided in a circuit parallel to the main switch of the circuit breaker and includes a reactive element such as a capacitor.

REFERENCES:
patent: 2037062 (1936-04-01), Brach
patent: 3641394 (1972-02-01), Hirose et al.
patent: 3683350 (1972-08-01), Shedenheim
patent: 3795821 (1974-03-01), Ichiyanagi
patent: 3869641 (1975-03-01), Goldberg
patent: 3890465 (1975-06-01), Kaizu
patent: 3999087 (1976-12-01), Compton
patent: 4056816 (1977-11-01), Guim
patent: 4122854 (1978-10-01), Blackett
patent: 4207439 (1980-06-01), Saxon
patent: 4217618 (1980-08-01), Kellenbenz et al.
patent: 4271446 (1981-06-01), Comstock
Radiotechnika (Hungary), Feb., 1980, pp. 83-84, "LED-Indicators for Domestic Electric Networks" by Istvan Novak.

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