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:
Sep. 28, 2004
Filed:
Jul. 31, 2003
Applicant:
Inventor:
Kurt Jäck, Aulendorf, DE;
Assignee:
Nothelfer GmbH, Ravensburg, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B23K 2/624 ;
U.S. Cl.
CPC ...
B23K 2/624 ;
Abstract
A method and device for joining coated metal sheets by laser welding is provided in which the metal sheets ( ) are placed one on top of another such that the marginal strip ( ) of one metal sheet ( ) protrudes over the marginal strip ( ) of the other metal sheet ( ). The marginal strips ( ) are pressed together at least in some areas and are joined by laser welding with a laser beam ( ) directed at right angles or at about right angles to the plane of the marginal strips ( ). The protruding marginal strip ( ) is pushed away from the other marginal strip ( ) during the laser welding to form a degassing space ( ).