System for indicating an emergency exit

Details System for indicating an emergency exit System for indicating an emergency exit

1981-10-15

1983-12-20

Swann, III, Glen R.

Communications: electrical

Condition responsive indicating system

Specified indicator structure

315 76, 362 20, 362802, 340654, G08B 538, G08B 1700, G08B 2100

Patent

active

044220693

ABSTRACT:
At least one, and preferably two, flashable lights are positioned near an exit door and are actuated in case of an emergency such as a fire or interruption of power. The lights are preferably located near the floor on opposite sides of the exit and are energized by emergency power supply batteries upon interruption of the main power supply. The main power supplied to the system may be interrupted by a fire detector device, and the system includes means for commencing the operation of the flashable lights upon any such interruption. Th flashable lights are preferably discharge tube photoflash lamps which are capable of emitting high intensity flashes.

REFERENCES:
patent: 4074225 (1978-02-01), Vandeweghe
patent: 4255746 (1981-03-01), Johnson et al.
patent: 4283657 (1981-08-01), Gordon et al.
patent: 4349863 (1982-09-01), Petersen

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