Emergency lighting system

Details Emergency lighting system Emergency lighting system

1980-05-05

1984-06-12

LaRoche, Eugene R.

Electric lamp and discharge devices: systems

Automatic substitution of the power supply

307 66, H02J 906, H02J 700, H05B 4114

Patent

active

044544529

ABSTRACT:
An emergency light entirely self-contained that fits into a standard AC fixture in place of a fluorescent or other vapor lamp employs a similar lamp and a rechargeable battery with a system which operates the lamp normally on AC but if AC power fails operates the lamp using battery power. During normal operation on AC the battery is charged by a rectifier charger unit operating in series with the lamp current, which limits battery charge current. When AC power fails the lamp is electrically isolated from the AC line and operated by an inverter unit drawing power from the battery.

REFERENCES:
patent: 3356891 (1967-12-01), Godard
patent: 3660714 (1972-05-01), Chandler
patent: 3921005 (1975-11-01), Watrous
patent: 4063108 (1977-12-01), Klett et al.
Grobmann, Leuchtstofflampen in der Sicherheitsbeleuchtung, Technische Rundschau, Jun. 1972.

Affiliated with

Also associated with

Rating

Emergency lighting system does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Emergency lighting system, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Emergency lighting system will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-123867