US Patent Issued to COMPAGNIE GENERALE DES ETABLISSEMENTS MICHELIN on Dec. 30 for "Mixing and extrusion machine with self-cleaning twin screw and method of use" (French Inventors)

ALEXANDRIA, Va., Dec. 31 -- United States Patent no. 12,508,742, issued on Dec. 30, was assigned to COMPAGNIE GENERALE DES ETABLISSEMENTS MICHELIN (Clermont-Ferrand, France).

"Mixing and extrusion machine with self-cleaning twin screw and method of use" was invented by Bruno Dussardier (Clermont-Ferrand, France) and Aurelien Tournebize (Clermont-Ferrand, France).

According to the abstract* released by the U.S. Patent & Trademark Office: "A mixing and extrusion machine (10) for the manufacture of rubber mixtures has a mixer with a converging conical twin screw (12) with a fixed frame (14) that supports sleeves (16). Two screws (18), being mounted at an angle, are mounted in the mixer (12) so as to move in translational movement between an ...