ALEXANDRIA, Va., Feb. 11 -- United States Patent no. 12,544,967, issued on Feb. 10, was assigned to Windmoller & Holscher KG (Lengerich, Germany).
"Blown-form identification in a blown film system" was invented by Ingo Hehmann (Lengerich, Germany), Marco Ventker-Stegemann (Lengerich, Germany) and Michel Bembenek (Lengerich, Germany).
According to the abstract* released by the U.S. Patent & Trademark Office: "The invention relates to a blown film system for producing a film tube made of plastics material, comprising: an annular nozzle, out of which a plastic melt having a closed cross-section can be brought; a take-up device, by means of which the plastic melt can be drawn up from the direction of the annular nozzle so as to form the film ...