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:
Dec. 16, 1980
Filed:
Mar. 07, 1978
Heinrich Aust, Hennef, DE;
Wolfgang Budich, Troisdorf-Sieglar, DE;
Heinz Nowak, Siegburg, DE;
Franz Primessing, Niederkassel-Mondorf, DE;
Dynamit Nobel AG, , DE;
Abstract
A process for welding synthetic resin structures together at their end faces, wherein the structures are clamped in position, the end faces are heated by being brought into contact with a heating plate until initial melting occurs, the softened end faces are pressed together and the weld bead is machined off, the structures are guided on at least two opposing outside surfaces up to the welding edge by guide means, with the melting zone being left vacant, and the softened end faces of the profile elements are pressed together approximately until the opposite outside guide means contact each other whereby the weld bead formation is restricted and the weld bead can be scraped off while the elements are still in the warm condition and a device for carrying out this process.