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:
Feb. 09, 1988
Filed:
Feb. 11, 1987
Applicant:
Inventor:
Albrecht von Skarczinski, Berlin, DE;
Assignee:
Siemens Aktiengesellschaft, Munich, DE;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B23K / ;
U.S. Cl.
CPC ...
2191171 ; 219 7801 ; 219 912 ;
Abstract
A method for the local joining of stacked metal foils by electric pressure welding provides for receiving the foil stack between holding jaws which are arranged movably and tiltably. Thereby, pressure welds can be carried out successively at both ends of the foil stack without manual intervention. In an apparatus suitable for carrying out the method, the holding jaws consist of a highly heat-conducting material and contain a coolant canal. The clamping surfaces of the holding jaws are curved in the same direction and are interleaved. The curvature represents a substitute shape for a curvature given if the finished welded foil stack is in use.