ALEXANDRIA, Va., Feb. 11 -- United States Patent no. 12,545,364, issued on Feb. 10, was assigned to Praxis Works LLC (Santa Cruz, Calif.).
"Bicycle gearbox having segmented sprockets" was invented by David Allen (Santa Cruz, Calif.), David M. Earle (Santa Cruz, Calif.), Ryan Kent Miller (Santa Cruz, Calif.) and Michael David Machado (Salinas, Calif.).
According to the abstract* released by the U.S. Patent & Trademark Office: "A method for shifting a segmented gear may include rotating a gear cluster including a first gear and a coaxial second gear using a power transfer mechanism (e.g., a belt or a chain). The power transfer mechanism defines a plane and is wrapped partially around the first gear. and wherein the first gear has a pluralit...