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:
Aug. 30, 1977
Filed:
Mar. 05, 1976
Applicant:
Inventor:
Robert S White, Jr, Beverly, MA (US);
Assignee:
GTE Sylvania Incorporated, Danvers, MA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B23K / ;
U.S. Cl.
CPC ...
219118 ; 2963 / ; 219 91 ;
Abstract
In the process of inserting and fastening a thin molybdenum ribbon into the slot of a slotted tungsten rod, for use in the press seal of a high silica glass lamp envelope, a two step welding process is used. The first weld is made with the two welding electrodes at the internal end of the slot. The second weld is made with the electrodes closer to the end of the rod.