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:
Jun. 14, 2005
Filed:
Dec. 09, 2002
Albert Cavallaro, Florida, NY (US);
Albert Cavallaro, Florida, NY (US);
Osram Sylvania Inc., Danvers, MA (US);
Abstract
A self-ballasted fluorescent lamp () that comprises a housing () formed to contain a ballast. The housing () has a top surface () with openings () leading from the exterior of the housing () to the interior. The openings () can be in the form of raised bosses having upstanding walls (). A restricted portion (), which can take the form of a flange, is formed with the opening () and a safe end-of-life enabling device () is positioned in the opening () and in contact with the restricted portion (). The safe end-of-life device () is tubular, has low thermal conductivity and in preferred forms of the invention is a glass such as quartz or a ceramic such as aluminum oxide. The ends () of a fluorescent lamp () penetrate the tubular end-of-life device () and extend into the interior of the housing for suitable connection to an enclosed electronic ballast. A retainer () is positioned opposite the restricted portion for maintaining the end-of-life device within the opening. The retainer () is a typical compact fluorescent cement that is used to fix the lamp to the housing. Alternatively, the retainer can be an adhesive silicone or a threaded washer.