ALEXANDRIA, Va., Feb. 24 -- United States Patent no. 12,558,739, issued on Feb. 24, was assigned to Blue Origin Manufacturing LLC (Huntsville, Ala.).
"Friction stir additive manufacturing devices and methods for forming in-situ rivets" was invented by Weidong Song (Woodinville, Wash.).
According to the abstract* released by the U.S. Patent & Trademark Office: "A method of joining a first work-piece to a second work-piece is provided. Each of the first work-piece and the second work-piece include a top surface, an opposed bottom surface, and a side surface connecting the top surface and the opposed bottom surface. In one aspect, the method includes positioning the side surface of the first work-piece adjacent to the side surface of the sec...