ALEXANDRIA, Va., May 12 -- United States Patent no. 12,624,747, issued on May 12, was assigned to Liftwave Inc. (Somerville, Mass.).
"Annular pulley system" was invented by Blake Sessions (Boston).
According to the abstract* released by the U.S. Patent & Trademark Office: "In general, this disclosure involves a pulley system that includes a plurality of fixed sheaves arranged in a first annulus and a plurality of traveling sheaves arranged in a second annulus. The plurality of traveling sheaves are configured to travel along an axis of travel and are coupled to an output shaft configured to pass through the first annulus and translate along the axis of travel. The plurality of traveling sheaves are aligned with the plurality of fixed shea...