US Patent Issued to GILBY'S STREET DEPT on Sept. 2 for "Motorcycle-engine supercharger" (Wisconsin Inventors)

ALEXANDRIA, Va., Sept. 3 -- United States Patent no. 12,404,800, issued on Sept. 2, was assigned to GILBY'S STREET DEPT (River Falls, Wis.).

"Motorcycle-engine supercharger" was invented by Todd D. Gilbertson (River Falls, Wis.), Gabriel T. Hilgers (River Falls, Wis.) and John D. Trutnau (River Falls, Wis.).

According to the abstract* released by the U.S. Patent & Trademark Office: "A driveshaft assembly for a motorcycle supercharger includes: an elongated driveshaft defining a tapered distal portion, and a flywheel drive pulley defining a tapered central bore. The tapered central bore of the drive pulley is configured to receive the tapered distal portion of the driveshaft to form a locking-taper interface between the driveshaft and the ...