Electric lamp and discharge devices: systems – Automatic substitution of the power supply
Patent
1991-03-26
1993-04-13
Dzierzynski, Paul M.
Electric lamp and discharge devices: systems
Automatic substitution of the power supply
315209R, 315DIG7, 307 44, 307 66, H02J 906, H05B 4129
Patent
active
052026086
ABSTRACT:
An emergency lighting system operable on line voltage under normal conditions and on battery power upon failure of line voltage, the system comprises a battery, a battery charging circuit, a line monitor, a lamp/ballast interface and a switching transistor inverter circuit in addition to an electric discharge lamp, ballast and conventional associated circuitry as well as mechanical packaging and connections to line voltage. Advantages in installation and operation of the present emergency lighting system occurs through use of the switching transistor inverter circuit which starts and operates the discharge lamp from the battery on line voltage failure. The emergency lighting system of the invention is rapidly installable through wiring of an associated lighting fixture to the system using power input leads to conventional ballast, thereby substantially simplifying installation of the inverter circuit.
REFERENCES:
patent: 3836815 (1974-09-01), Herzog
patent: 4144462 (1979-03-01), Sieron et al.
patent: 4751398 (1988-06-01), Ertz, III
Darnell Kenneth E.
Dzierzynski Paul M.
National Service Industries, Inc.
Shingleton Michael B.
LandOfFree
Emergency lighting system utilizing improved and rapidly install 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 utilizing improved and rapidly install, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Emergency lighting system utilizing improved and rapidly install will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1157581