Apparatus to facilitate lengthening the life of incandescent lam

Details Apparatus to facilitate lengthening the life of incandescent lam Apparatus to facilitate lengthening the life of incandescent lam

1984-09-25

1987-03-17

Chatmon, Saxfield

Electric lamp and discharge devices: systems

Discharge device and/or rectifier in the supply circuit

Flashers

315205, 315DIG4, 315171, H05B 3700, H05B 3900, H05B 4114

Patent

active

046510613

ABSTRACT:
An energizing circuit for an incandescent light bulb includes two rectifiers with their outputs connected in parallel across the bulb. One rectifier has a low voltage output to keep the bulb filament warm while the other rectifier, which is energized by closing a switch, has a higher voltage which causes the bulb to emit high intensity light.

REFERENCES:
patent: 3198984 (1965-08-01), Franke
patent: 3207949 (1965-09-01), Rice
patent: 4004184 (1977-01-01), Ott
patent: 4112336 (1978-09-01), Rios
patent: 4114477 (1979-03-01), Eaton
patent: 4342947 (1982-08-01), Bloyd

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