Fluorescent lamp unit with integral ballast housing

Details Fluorescent lamp unit with integral ballast housing Fluorescent lamp unit with integral ballast housing

1987-09-24

1988-12-20

Moore, David K.

Electric lamp and discharge devices: systems

Combined load device or load device temperature modifying...

Plural circuit elements

315 56, H01J 744

Patent

active

047927267

ABSTRACT:
A fluorescent lamp unit adapted for use in an incandescent lamp socket includes a tube, a cap member having a base wall in which the tube is fixed, and a ballast housing having a primary cavity which is substantially defined by a circumferential wall and closed toward the cap member to create a secondary cavity which thermally isolates the tube from the ballast. The housing further includes a partition which isolates conduits for the wire leads from the primary cavity and each other, whereby uninsulated leads may be used. A potted ballast completely fills the primary cavity to improve heat dissipation through the circumferential wall.

REFERENCES:
patent: 2279635 (1942-04-01), Morley
patent: 3781593 (1973-12-01), Rodriguez
patent: 4270071 (1981-05-01), Morton
patent: 4449071 (1984-05-01), Yokoyama et al.
patent: 4570104 (1986-02-01), Janssen

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