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:
Jan. 15, 2013
Filed:
Jan. 16, 2009
Ulrich Gubler, Rotkreuz/ZG, CH;
Hannes Kühl, Sonneberg, DE;
Ulrich Gubler, Rotkreuz/ZG, CH;
Hannes Kühl, Sonneberg, DE;
Leister Technologies AG, Kagiswil, CH;
Abstract
The invention relates to an electric hot wedge () for a welding device for the seam-like connecting of plastic webs, having a welding wedge () and a welding wedge attachment () made of metal, wherein the welding wedge () comprises at least one electric heating resistor () having a heating conductor (), which is bonded to a ceramic carrier () as a conductive layer () and is preferably protected by a ceramic cover layer. According to the invention, the welding wedge attachment () has a support structure () made of metal on the side thereof, which substantially extends across the entire length and/or width of the electric heating resistor () and which mechanically stabilizes the carrier () of the heating resistor ().