ALEXANDRIA, Va., Aug. 26 -- United States Patent no. 12,398,764, issued on Aug. 26, was assigned to Schaeffler Technologies AG & Co. KG (Herzogenaurach, Germany).
"Friction plate having a groove pattern formed by means of friction lining pads" was invented by Christian Denda (Achern, Germany) and Tobias Hebgen (Buhl, Germany).
According to the abstract* released by the U.S. Patent & Trademark Office: "A frictional surface for an annular wet friction system with external lubrication includes a groove pattern with first pentagonal friction lining pads, second pentagonal frictional lining pads, and a groove. The first pentagonal friction lining pads are arranged radially outwards in a first row and the second pentagonal friction lining pads ...