ALEXANDRIA, Va., Dec. 23 -- United States Patent no. 12,502,737, issued on Dec. 23, was assigned to SMS GROUP GMBH (Duesseldorf, Germany).
"Internal welding of pipes and profiles" was invented by Michael Stark (Markdorf, Germany).
According to the abstract* released by the U.S. Patent & Trademark Office: "The invention relates to a device (1) for the internal welding of pipes and profiles, comprising a cantilever arm (2, 2a), which is secured to a suspension (3), which cantilever arm can be inserted into the pipe or profile to be welded and on which a welding head (4) is displaceably attached, the cantilever arm (2, 2a) further comprising at least one laser (5) and at least one camera (6). To avoid the disadvantageous effects of magnetism...