Light bulb assembly having a light bulb with the ability to...

Details Light bulb assembly having a light bulb with the ability to... Light bulb assembly having a light bulb with the ability to...

2005-11-08

2005-11-08

Williams, Joseph (Department: 2879)

Electric lamp and discharge devices

Incandescent lamps

Plural filaments or glowers

Reexamination Certificate

active

06963161

ABSTRACT:
A light bulb assembly having a light bulb with the ability to change color. The light bulb assembly comprises a light bulb, a socket for containment of the light bulb, and a light switch assembly for selectively providing current to the socket and attached light bulb. The light bulb has three filaments which separately emit white light upon selective illumination. Two of the filaments, however, are separately encased by a sleeve of translucent, differently colored material. Accordingly, the white light emitted by each of the latter two filaments is filtered by the colored sleeves, and these filaments thereby produce colored light. The switch assembly has three switches, each of which selectively illuminates one of the filaments. The light bulb assembly is thereby able to selectively provide white light as well as differently colored light on different occasions.

REFERENCES:
patent: 1688549 (1928-10-01), Llaurado
patent: 1818183 (1931-08-01), Wood
patent: 1825078 (1931-09-01), Marette
patent: 1874355 (1932-08-01), Round
patent: 2074246 (1937-03-01), Adler, Jr.
patent: 2416315 (1947-02-01), Hartman
patent: 3882353 (1975-05-01), Ackley
patent: 3885185 (1975-05-01), Tilley
patent: 4337414 (1982-06-01), Young

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