ALEXANDRIA, Va., June 4 -- United States Patent no. 12,317,859, issued on June 3, was assigned to DeLaval Holding AB (Tumba, Sweden).

"Milking parlor arrangement,computer program and non-volatile data carrier" was invented by Marcin Walachowski (Tumba, Sweden) and Tomasz Zawislanski (Tumba, Sweden).

According to the abstract* released by the U.S. Patent & Trademark Office: "A drive unit causes a rotating platform of a rotary milking parlor arrangement to move in a direction of rotation. The drive unit includes first and second drive motors arranged to engage a drive rail of the rotating platform and act on a respective side of the drive rail to cause the rotating platform to move. Each of the drive motors produces a respective pace signal...