ALEXANDRIA, Va., Jan. 13 -- United States Patent no. 12,522,954, issued on Jan. 13, was assigned to Bracker AG (Pfaffikon-Zurich, Switzerland).

"Spinning or twisting ring, and ring/traveler system" was invented by Vadim Verlotski (Wuppertal, Germany), Markus Dippel (Pfaffikon, Switzerland) and Jan-Dirk Gerken (Pfaffikon, Switzerland).

According to the abstract* released by the U.S. Patent & Trademark Office: "A spinning ring for a ring-spinning or ring-twisting machine includes a web and a ring crown, the ring crown having a contact surface along which a ring traveler slides in operation of the ring-spinning or ring-twisting machine. At least the contact surface of the ring crown formed of a tungsten sintered material having at least 90% ...