Back-up lighting system

Details Back-up lighting system Back-up lighting system

1993-02-23

1995-05-16

Mis, David

Electric lamp and discharge devices: systems

Automatic substitution of the power supply

315129, 315135, 315155, 315159, 315240, 315260, 315DIG2, 320 2, 320 48, H05B 3904, H05B 4116, H05B 4129, H05B 4136

Patent

active

054163846

ABSTRACT:
This is an emergency lighting system that provides an emergency driving voltage to drive at least one lamp when the AC power input to the lamp is detected as absent. A rechargeable battery pack and recharging circuit are contained in a first modular housing, and driving circuitry is contained in a second modular housing. An easily accessible, manually-operable service switch disables the provision of battery power to the driving circuitry (when the switch is in the open state), thereby allowing substantial reduction in installation time and cost. A test switch is included to emulate power failures. A transmitter and receiver mechanism allow a user to remotely disable the provision of battery power to the driving circuitry, thereby offering battery power conservation, if the emeregency lamplight is not needed. Likewise, a photo-sensing mechanism disables the provision of battery power to the driving circuitry, if there is sufficient ambient light.

REFERENCES:
patent: 1922079 (1933-08-01), Dixon
patent: 2067653 (1937-01-01), Witmer et al.
patent: 3486068 (1969-12-01), Dunn et al.
patent: 3641487 (1972-02-01), Rogers et al.
patent: 3644783 (1972-02-01), Snyder
patent: 3904947 (1975-09-01), Crews
patent: 4060701 (1977-11-01), Epley
patent: 4144462 (1979-03-01), Sieron et al.
patent: 4686424 (1987-08-01), Nuckolls et al.
patent: 4977351 (1990-12-01), Bavaro et al.
patent: 5154504 (1992-10-01), Helal et al.
patent: 5220248 (1993-06-01), Wang
patent: 5252891 (1993-10-01), Huang

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