ALEXANDRIA, Va., Oct. 21 -- United States Patent no. 12,766,558, issued on Oct. 20, was assigned to Metso Finland Oy (Espoo, Finland).

"Electric vibration machinery for mineral material processing device" was invented by Jari Jonkka (Espoo, Finland) and Jonne Ketola (Espoo, Finland).

According to the abstract* released by the U.S. Patent & Trademark Office: "A belt or chain driven mineral material processing device vibrator. The vibrator includes a vibrator shaft drive wheel configured to reside at least partially in a radial direction around a bearing of a vibrator shaft that extends through a device frame of a mineral material processing device. An eccentric is configured to be mounted to the vibrator shaft so that the eccentric extends...