Electric lamp and discharge devices: systems – Current and/or voltage regulation
Reexamination Certificate
2006-08-29
2006-08-29
Vu, David (Department: 2828)
Electric lamp and discharge devices: systems
Current and/or voltage regulation
C315S124000, C315S127000
Reexamination Certificate
active
07098610
ABSTRACT:
An incandescent light bulb life extender circuit is designed to attach to the screw base of a conventional light bulb or incorporated in series with the AC powering the bulb. The circuit employs a bidirectional semiconductor switch that reduces the brightness of the bulb marginally while significantly extending the bulb's life. The values of the life extender are selected to operate with standard available light dimmers with no undesirable flicker or compromise of reasonable brightness control. A controller consists of the life extending circuit and a) an appropriate molded insulating housing, b) electrically conductive metallic discs for making electrical contacts to a light bulb base and corresponding socket and c) selected electronic components, connected to said discs, to facilitate the intended electrical performance.
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SCR Manual, Fifth Edition, 1972, pp. 231-233 and pp. 252-253, General Electric, Syracuse, NY.
Thyristor Product Catalog, 2002, pp. E9-1-E9-3, Teccor Electronics, Irving, Texas.
Cesari and McKenna LLP
LongLite, LLC
Paul, Esq. Edwin H.
Vu David
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