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:
Jul. 20, 2010
Filed:
Dec. 16, 2005
Ashfaqul Islam Chowdhury, Broadview Heights, OH (US);
Roger Hume, Melton Mowbray, GB;
Barry Preston, Melton Mowbray, GB;
Rajasingh Israel, Westlake, OH (US);
Tianji Zhao, Mayfield Heights, OH (US);
Ashfaqul Islam Chowdhury, Broadview Heights, OH (US);
Roger Hume, Melton Mowbray, GB;
Barry Preston, Melton Mowbray, GB;
Rajasingh Israel, Westlake, OH (US);
Tianji Zhao, Mayfield Heights, OH (US);
General Electric Company, Schenectady, NY (US);
Abstract
An improved seal for an electric lamp is provided. An oxidation-resistant coating is provided on the current conductor where the outer lead joins the seal foil, preferably at the pinch seal. The coating is preferably a chromium layer covered by a chromium layer or a silver layer covered by a layer of hydrogenated silicon oxy carbon polymer. The coating is preferably applied via sputtering where the coating is subject to high energy electron or ion bombardment during sputtering. Preferably the coating is applied via sputtering at increased deposition pressure.