ALEXANDRIA, Va., March 31 -- United States Patent no. 12,589,550, issued on March 31, was assigned to Guehring KG (Albstadt, Germany).
"PCD extrusion nozzle" was invented by Andreas Sagr (Albstadt, Germany), Zarko Stevanovic (Albstadt, Germany), Peter Hartmann (Strassberg, Germany) and Tobias Fechner (Albstadt, Germany).
According to the abstract* released by the U.S. Patent & Trademark Office: "The invention relates to an extrusion nozzle (1) for processing 3D printing material, having a nozzle base (2) with a seat (22) for fastening in a 3D printing device and an outlet portion (21), said outlet portion (21) comprising a nozzle insert (3), and the nozzle base (2) consisting of a solid carbide, metal or brass and the nozzle insert (3) in...