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. 10, 2021
Filed:
Nov. 30, 2016
Kienle + Spiess Gmbh, Sachsenheim, DE;
Björn Böker, Esslingen, DE;
Kienle + Spiess GmbH, Sachsenheim, DE;
Abstract
In order to produce a clutch pack (), clutch plates are cut from an electrical steel strip or sheet, arranged on top of one another to form the clutch pack () and connected to one another within the clutch pack (). The material of the clutch plates is locally plasticised in the edge region via the generation of frictional heat by means of at least one tool ('), in such a way that the material of at least adjacent clutch plates is mixed with the tool (′) such that, after the plasticised material has cooled, these clutch plates are integrally connected to one another. The device used for this purpose has at least one punch press and/or at least one receiving means for one or more clutch packs (). In addition, the device has at least one welding tool that is rotatably driven about its axis and can be moved in a transverse direction to its rotational axis.