ALEXANDRIA, Va., July 15 -- United States Patent no. 12,662,754, issued on June 23, was assigned to Polytex Sportbelage Produktions-GmbH (Grefrath, Germany).
"Extrusion apparatus for turf fiber monofilament" was invented by Stephan Sick (Baden-Baden, Germany), Sven Hamann (Muehlheim, Germany), Dario Grochla (Bochum, Germany) and Dirk Sander (Kerken, Germany).
According to the abstract* released by the U.S. Patent & Trademark Office: "An extrusion apparatus suitable for manufacturing artificial turf polymer fiber, in particular from LLDPE that is free of fiber splitting, wherein the extrusion apparatus is characterized in that a ratio of an equivalent diameter of the nozzle outlet over an axial length of the inner channel of the nozzle is ...