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:
Apr. 04, 1995
Filed:
Apr. 07, 1994
Ronald J Olwert, Concord Township, Lake County, OH (US);
Frederic F Ahlgren, Euclid, OH (US);
Laverne E Walsh, Chagrin Falls, OH (US);
Donald R Schindler, Burton, OH (US);
Rolf S Bergman, Cleveland Heights, OH (US);
Gary L Price, Cleveland Heights, OH (US);
Curtis E Scott, Mentor, OH (US);
General Electric Company, Schenectady, NY (US);
Abstract
An incandescent lamp containing a coiled filament within a vitreous envelope wherein the filament is supported at at least one point along its coil length by a refractory metal support wire one end of which is welded to a coil and the other end secured to the envelope wall by a glass bead. The support prevents filament sag during lamp operation and is especially useful with double-ended high intensity tungsten-halogen lamps having an elliptically shaped filament chamber with an infrared reflecting and visible light transmitting optical interference coating on the chamber.