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. 16, 1991
Filed:
Dec. 26, 1989
Applicant:
Inventors:
William G Thiry, Winchester, KY (US);
Richard K Fleegal, Camp Hill, PA (US);
Assignee:
GTE Products Corporation, Danvers, MA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01J / ;
U.S. Cl.
CPC ...
313318 ; 439611 ; 439613 ;
Abstract
A glass lamp base may be formed by thinning the glass base in the area behind the point where the side lead is welded to the exterior surface of the screw. Thinning the glass behind the weld area helps assure that the remaining glass is firmly positioned to the back of the screw in the area of the weld, and has not slumped away from the screw. Assuring the glass backing is present, increases the likelihood of a successful weld, and functional lamp.