ALEXANDRIA, Va., March 24 -- United States Patent no. 12,583,571, issued on March 24.
"Motion transforming differentially biased transmission for human powered vehicles" was invented by Paul Laurent Artigues (Auburn, Ga.) and Robert Rue Emrich II (Lindale, Texas).
According to the abstract* released by the U.S. Patent & Trademark Office: "A transmission for a human-powered vehicle. The transmission has a primary system that includes a transmission case, a crankshaft with cog, a pair of receiver cranks, a pair of connecting rods, a pair of oscillating driver cranks, and a pair of pedals. A secondary biasing system is engaged with the primary system to provide a favorable torque around dead centers of the primary system. The transmission 15...