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. 14, 1993
Filed:
Oct. 31, 1991
Glen P Williamson, Manchester, NH (US);
Thang T Tay, Bedford, NH (US);
Other;
Abstract
A metal halide arc discharge lamp includes a sealed lamp envelope, an arc tube located within the lamp envelope, a generally cylindrical, light-transmissive shroud positioned around the arc tube, a frame comprising a single support rod extending between dome and neck regions of the lamp envelope, upper and lower clips for attaching the arc tube and the shroud to the frame, a resilient bulb spacer attached to a neck end of the frame and bearing against an inside surface of the lamp envelope for positioning the frame relative to the lamp envelope, and electrical leads for coupling electrical energy to the arc tube. The frame is mechanically supported within the lamp envelope in the neck region solely by the bulb spacer. Leakage currents between the frame and the electrical leads through the lamp stem are effectively eliminated.