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:
Jun. 07, 2016
Filed:
Jun. 01, 2011
Applicant:
Joerg Wermelinger, Schaffhausen, CH;
Inventor:
Joerg Wermelinger, Schaffhausen, CH;
Assignee:
George Fischer Rohrleitungssysteme AG, Schaffhausen, CH;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B29C 65/20 (2006.01); B29D 23/00 (2006.01); B29C 65/78 (2006.01); B29C 65/00 (2006.01); B26D 3/16 (2006.01); B29L 23/00 (2006.01); B29K 101/12 (2006.01);
U.S. Cl.
CPC ...
B29D 23/003 (2013.01); B26D 3/166 (2013.01); B29C 65/20 (2013.01); B29C 65/2092 (2013.01); B29C 65/7835 (2013.01); B29C 66/022 (2013.01); B29C 66/0322 (2013.01); B29C 66/1142 (2013.01); B29C 66/32 (2013.01); B29C 66/5221 (2013.01); B29C 66/73921 (2013.01); B29C 66/80 (2013.01); B29C 66/9121 (2013.01); B29C 66/91431 (2013.01); B29C 66/9221 (2013.01); B29C 66/9231 (2013.01); B29C 66/9261 (2013.01); B29C 66/92441 (2013.01); B29C 66/92445 (2013.01); B29C 66/92651 (2013.01); B29C 66/92921 (2013.01); B29C 66/9441 (2013.01); B29C 66/974 (2013.01); B29C 66/961 (2013.01); B29C 2793/0081 (2013.01); B29K 2101/12 (2013.01); B29L 2023/22 (2013.01);
Abstract
A method and a device for welding plastic pipes () made of thermoplastic material by a butt-welding method, wherein the pipes () are held in a coaxial position in relation to one another by clamping points (), are trimmed by a trimmer (), which can be brought between the clamping points (), and are heated up by heated tools (), which can be fitted in place of the trimmer (), wherein the heating of the free pipe ends () to be welded has the effect of forming a melting region which forms a bead when pressing occurs, the pipe projection () of the pipes () being trimmed to a defined size.