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:
Nov. 27, 2018
Filed:
Oct. 31, 2012
Fronius International Gmbh, Pettenbach, AT;
Bernhard Artelsmair, Pettenbach, AT;
Christoph Schultschik, Pettenbach, AT;
Johannes Neuboeck, Steinerkirchen/Tr., AT;
Stefan Wolfsgruber, Gmunden, AT;
FRONIUS INTERNATIONAL GMBH, Pettenbach, AT;
Abstract
The invention relates to a heavy-current transformer (), in particular for a power source () in order to provide a welding current of a resistance welding device (), with at least one primary winding () and at least one secondary winding () with center tapping, and to a transformer element, a contact plate () and a secondary winding () for such a heavy-current transformer () as well as a method for the manufacturing thereof. For reduction of losses and improvement of efficiency, at least four contacts () are provided to form a multi-point contacting, said contacts () being formed by four contact faces within which the at least one primary winding () and the at least one secondary winding () are arranged in a series/parallel connection.