ALEXANDRIA, Va., June 25 -- United States Patent no. 12,337,519, issued on June 24, was assigned to GIMAC DI MACCAGNAN GIORGIO (Castronno, Italy).
"Screw for an extruder and extruder device" was invented by Giorgio Maccagnan (Castronno, Italy), Simone Maccagnan (Castronno, Italy) and Davide Fedeli (Jerago County Orago, Italy).
According to the abstract* released by the U.S. Patent & Trademark Office: "The extruder screw comprises a screw body (2) coated by an external functionalization coating (4), and also at least partially coated by a wear detection-quantification coating (5) arranged between the external surface (3) of the screw body (2) and the external functionalization coating (4), and detectable with respect to the external functi...