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.

Date of Patent:
Jan. 09, 2001

Filed:

Dec. 22, 1998
Applicant:
Inventors:

Jin-Kook Chang, Berlin, DE;

G{umlaut over (u)}nter Heine, Berlin, DE;

Herbert Jahn, Berlin, DE;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B23K 2/622 ;
U.S. Cl.
CPC ...
B23K 2/622 ;
Abstract

A process and a device for the joining of fastening elements on a mask frame of picture tubes by welding using laser beams is applicable to the production of color picture tubes for television sets and computer monitors. After positioning the fastening elements, the elements are welded by laser beams from at least one laser source. The laser source is located outside the mask frame, and the laser beam is guided through a glass wall of a screen to weld the fastening elements.


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