Rechargeable fluorescent task lamp

Details Rechargeable fluorescent task lamp Rechargeable fluorescent task lamp

2004-04-30

2008-10-14

Ward, John A (Department: 2885)

Illumination

Self powered lamp

Rechargeable electrical source of with external connections

C362S221000

Reexamination Certificate

active

07434953

ABSTRACT:
A battery operated fluorescent lamp is disclosed, which is operable from the battery while the battery is being recharged, comprising a tubular housing configured as a handle grip at one end and a cylindrical lens portion at the other end. The tubular housing lockably connects to a battery pack. The cylindrical 3030 lens portion encloses a miniature fluorescent bulb. The electrical circuitry, enclosed within the handle grip and alternately operable from either 120 VAC or 12 VDC, includes a converter circuit, a battery charging circuit, and a fluorescent lamp ballast circuit. The battery pack is electrically coupled to simultaneously receive charging current from an output of the charging circuit and to deliver DC supply voltage to the fluorescent lamp ballast circuit without the occurrence of a net discharge of the battery pack.

REFERENCES:
patent: 3809882 (1974-05-01), Wetmore
patent: 4268894 (1981-05-01), Bartunek et al.
patent: 5039915 (1991-08-01), Lu
patent: 5465196 (1995-11-01), Hasenberg et al.
patent: 6534926 (2003-03-01), Miller et al.

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