ALEXANDRIA, Va., Feb. 24 -- United States Patent no. 12,558,851, issued on Feb. 24, was assigned to Herrmann Ultraschalltechnik GmbH & Co. KG (Karlsbad, Germany).
"Device and method for producing a gathered material" was invented by Raquel Roussel-Garcia (Pforzheim, Germany), Robin Alexander Bode (Pforzheim, Germany) and Timo Zink (Karlsruhe, Germany).
According to the abstract* released by the U.S. Patent & Trademark Office: "An apparatus for producing a gatherable material, wherein the material consists of at least two material web sections and one thread positioned between the material web sections, wherein the apparatus has a tool with a sealing surface and a counter-tool with a counter-sealing surface, wherein the tool and the counte...