ALEXANDRIA, Va., Oct. 28 -- United States Patent no. 12,454,416, issued on Oct. 28, was assigned to RULLI RULMECA S.P.A. (Alme', Italy).
"Motor cartridge for roller, roller" was invented by Giovanni Ruggeri (Alme', Italy).
According to the abstract* released by the U.S. Patent & Trademark Office: "A roller is provided which has a roller body extending between a first roller end and a second roller end, the roller body defining a motor cartridge seat therein, and a motor cartridge having an elongated cartridge body extending along an axial direction between a first cartridge body end and a second cartridge body end, and a motor unit supported at the first cartridge body end. The motor cartridge is connected to the roller exclusively by the...