Light fixture for use in hazardous environments having adapter r

Details Light fixture for use in hazardous environments having adapter r Light fixture for use in hazardous environments having adapter r

1992-12-04

1995-12-19

Bertsch, Richard A.

Illumination

Housing

With mounting means

362221, B60Q 100

Patent

active

054774420

ABSTRACT:
A lighting fixture for use in hazardous locations and adverse environments, includes a mounting plate and a first ballast housing. A second non-interchangeable ballast housing may be alternately employed by use of an adapter ring removably securable intermediate the mounting plate and the second ballast housing. The adapter ring comprises a top portion specially adapted to engage the mounting plate, with first fastening means associated therewith, and a bottom portion specially adapted to engage the second ballast housing, with second fastening means being associated therewith. The adapter ring allows the replacement of the first ballast housing with the second, wherein the first and second ballast housings are not identical and are produced by different manufacturers. The adaptor ring effectively seals the interfaces with the mounting plate and second ballast housing, thereby maintaining the integrity of the lighting fixture for its intended purpose.

REFERENCES:
patent: 4222093 (1980-09-01), Garcia et al.
patent: 4379321 (1983-04-01), Plemmons et al.
patent: 4449168 (1984-05-01), Ewing
patent: 4507719 (1985-03-01), Quiogue
patent: 5025356 (1991-06-01), Gawad
Industrial Lighting Fixtures for Hazardous Locations and Adverse Environments Reorder Catalog H-7036 Jan. 28, 1991 (Hazlux-American Electric).

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