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:
Oct. 18, 2005
Filed:
Sep. 18, 2003
Thomas H. Yu, Highland Heights, OH (US);
Shailesh R. Sheth, Westlake, OH (US);
Gino Savarino, Cleveland Heights, OH (US);
Bart P. Terburg, Mayfield Village, OH (US);
Thomas H. Yu, Highland Heights, OH (US);
Shailesh R. Sheth, Westlake, OH (US);
Gino Savarino, Cleveland Heights, OH (US);
Bart P. Terburg, Mayfield Village, OH (US);
General Electric Company, Schenectady, NY (US);
Abstract
A tungsten halogen lamp () includes a light transmissive envelope (), which encloses a tungsten filament () and a gaseous fill comprising an inert gas and a halogen-containing gas, such as an alkyl halide. In addition the fill includes a silicon-containing compound capable of gettering oxygen within the envelope. The atomic ratio of silicon to halogen in the envelope is selected so as to remove most, but not all of the oxygen present in the envelope A silicon:halogen ratio of less than about 0.5 more preferably, below about 0.4 has been found to be effective in this respect.