ALEXANDRIA, Va., June 10 -- United States Patent no. 12,290,873, issued on May 6, was assigned to BOND TECHNOLOGIES INC. (Elkhart, Ind.).
"Friction stir additive method and machine" was invented by Timothy John Haynie (Union, Mich.) and John A. Bosker (South Bend, Ind.).
According to the abstract* released by the U.S. Patent & Trademark Office: "An additive friction stir deposition machine and the method of using it. The friction stir deposition machine has a stationary tool with a fixed shoulder and an opening. The fixed shoulder is fixed from rotation with respect to a substate onto which feedstock material is deposited to build a layer. A guide tube holds the feedstock material and is rotatable within the stationary tool. The opening i...