ALEXANDRIA, Va., Aug. 12 -- United States Patent no. 12,703,137, issued on Aug. 11, was assigned to POMINI RUBBER & PLASTICS S.R.L. (Rescaldina, Italy).
"Screw and twin-screw assembly for use in elastomer mixture extruders and associated method for extrusion of elastomer mixtures" was invented by Roberto Regalia (Rescaldina, Italy).
According to the abstract* released by the U.S. Patent & Trademark Office: "A Screw for use in a twin-screw assembly of an elastomer mixture extruder with a threaded part with a single-start thread which defines at least three different sectors of the screw. The three sectors have an intake segment to capture the mixture fed from outside to push it downstream along the longitudinal direction, with a cross-sect...