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. 05, 2023
Filed:
Mar. 02, 2021
Applicant:
Voestalpine Stahl Gmbh, Linz, AT;
Inventors:
Ronald Fluch, Linz, AT;
Peter Atzmüller, Linz, AT;
Assignee:
voestalpine Stahl GmbH, Linz, AT;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B21D 39/03 (2006.01); H01F 41/02 (2006.01); B21D 43/22 (2006.01); H02K 15/12 (2006.01);
U.S. Cl.
CPC ...
B21D 39/03 (2013.01); B21D 43/22 (2013.01); H01F 41/0233 (2013.01); H02K 15/12 (2013.01);
Abstract
A method for stacking sheet metal parts composed of an electrical steel strip or sheet in order to form lamination stacks, each with a stack height within a tolerance range from a predetermined desired stack height, including stacking the sheet metal parts, which have a hot-melt adhesive varnish layer on at least one flat side, preheating the hot-melt adhesive varnish layers and putting the hot-melt adhesive varnish layers under pressure, then determining the stack height of the individual lamination stacks and adjusting the stack height if necessary, and then finally heating the hot-melt adhesive varnish layers.