US Patent Issued to Agru/America on May 13 for "Knurled calender roll, method and apparatus for forming the knurled calender roll and geomembrane produced by the knurled calender roll" (South Carolina Inventor)

ALEXANDRIA, Va., June 12 -- United States Patent no. 12,296,507, issued on May 13, was assigned to Agru/America Inc. (Georgetown, S.C.).

"Knurled calender roll, method and apparatus for forming the knurled calender roll and geomembrane produced by the knurled calender roll" was invented by Gunther Niedermoser (Murrells Inlet, S.C.).

According to the abstract* released by the U.S. Patent & Trademark Office: "An apparatus is provided for forming recesses in a calender roll. The apparatus includes a rotational drive for rotating the calender roll around a rotational axis. The apparatus further includes a knurling wheel with knurling spikes projecting there from. The knurling wheel is rotatable about an axis that is aligned an acute angle to ...