The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Dec. 19, 1995
Filed:
Dec. 04, 1992
Margaret A Self, Lake Cormorant, MS (US);
Thomas & Betts Corporation, Memphis, TN (US);
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.