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. 15, 2022
Filed:
Sep. 27, 2018
Adval Tech Holding Ag, Niederwangen, CH;
Beat Jenzer, Niederwangen, CH;
Sandro Bertogg, Gümmenen, CH;
Urs Graf, Bösingen, CH;
Jürg Spieler, Hergiswil, CH;
ADVAL TECH HOLDING AG, Niederwangen, CH;
Abstract
The invention relates to a method for producing a rolled edge from a cylindrical edge portion () of a pipe. In the method, a starting zone () of the edge portion () is rolled by a forcibly controlled tool (). A flanging die () then advances into the rolled edge portion () and flanges the rolled edge portion into a roll (). The method according to the invention is characterized in that the starting zone () of the edge portion () is folded over by the tool (), which comprises a folding die () and counterholder (), at an angle (α) in the range from 75-105° from the axial direction () into a substantially radially peripheral flange (). The invention further relates to elements, in particular in the forme of an aerosol dome, having such rolled edges.