Sequential on-off type serial lamp set constructed by varied the

Details Sequential on-off type serial lamp set constructed by varied the Sequential on-off type serial lamp set constructed by varied the

1992-10-16

1995-05-09

Pascal, Robert J.

Electric lamp and discharge devices: systems

Plural series connected load devices

Christmas lights

315185S, 315186, 315200A, 315DIG5, H05B 3700

Patent

active

054143268

ABSTRACT:
A flashing lamp set includes a plurality of gas-filled filament bulbs (101) having respective rise-time constants which are different from each other, thereby providing different thermo-optical effects. When power is supplied, the lamps are illuminated in sequence for security purposes or for a decorative effect.

REFERENCES:
patent: 2272523 (1942-02-01), Inman
patent: 3862434 (1975-01-01), Davis, Jr.
patent: 3895265 (1975-07-01), Watrous
patent: 3898512 (1975-08-01), Buck
patent: 4375634 (1983-03-01), Leis
patent: 5164636 (1992-11-01), Allaire

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