Back-up electrical system for portable table lamps

Details Back-up electrical system for portable table lamps Back-up electrical system for portable table lamps

1995-11-29

1998-03-31

Pascal, Robert

Electric lamp and discharge devices: systems

Automatic substitution of the power supply

315154, 315209R, 362 20, H05B 3700

Patent

active

057342296

ABSTRACT:
A back-up power system for a portable table lamp which accommodates a standard replaceable compact fluorescent bulb that is illuminated from an AC main power source when AC house current is available and is illuminated by a DC to DC converter when AC house current is unavailable, the converter being powered by replaceable low voltage battery located in the base of the lamp and charged by the AC source, with the loss of AC house current being sensed to cause the disconnection of the AC house current source and connection to the low voltage replaceable battery.

REFERENCES:
patent: 4682078 (1987-07-01), Pascalide
patent: 4727291 (1988-02-01), Bavaro
patent: 4751398 (1988-06-01), Ertz, III
patent: 4977351 (1990-12-01), Bavaro et al.
patent: 5004953 (1991-04-01), McDonald
patent: 5202608 (1993-04-01), Johnson
patent: 5365145 (1994-11-01), Fields
patent: 5426347 (1995-06-01), Nilssen

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