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. 23, 2025
Filed:
Aug. 31, 2020
Sms Group Gmbh, Duesseldorf, DE;
Michael Stark, Markdorf, DE;
SMS GROUP GMBH, Duesseldorf, DE;
Abstract
The invention relates to a device () for the internal welding of pipes and profiles, comprising a cantilever arm (), which is secured to a suspension (), which cantilever arm can be inserted into the pipe or profile to be welded and on which a welding head () is displaceably attached, the cantilever arm () further comprising at least one laser () and at least one camera (). To avoid the disadvantageous effects of magnetism and heat on the position of the welding head (), the invention proposes that a laser () is attached on the suspension (), and a camera () for observing the laser beam () is attached on the end of the cantilever arm () or on the welding head (). A correction signal is calculated from the change in position of the laser beam () observed with the camera () and forwarded to a control unit for adjusting the welding head () by means of displacement devices ().