ALEXANDRIA, Va., Nov. 6 -- United States Patent no. 12,459,183, issued on Nov. 4, was assigned to W. Muller GmbH (Troisdorf, Germany).
"Extrusion head arrangement" was invented by Ulrich Walter (Lohmar, Germany).
According to the abstract* released by the U.S. Patent & Trademark Office: "An extrusion head arrangement has a plurality of extrusion heads arranged next to one another along a transverse axis. Each extrusion head has a housing with at least one flow channel for forming a strand of extrudable plastic in the direction of a longitudinal axis. The housing has an outer housing part extending along the longitudinal axis with an outer circumferential surface. A longitudinal bore parallel to the longitudinal axis is arranged in the out...