ALEXANDRIA, Va., June 19 -- United States Patent no. 12,330,923, issued on June 17, was assigned to Spectrum Lab Holdings LLC (Elkton, Md.).
"Modular pulley block" was invented by Matthew Lippmann (Oak Park, Ill.) and David O'Neill (Vashon, Wash.).
According to the abstract* released by the U.S. Patent & Trademark Office: "A modular block has lad wye plates configured on opposing sides of the block that carry the load from an axle fastener to load fasteners coupled to the eye. This configuration of the load wye plates enables the other components, including contact surface components such as the sheave, sheave wheel, side plates and bushings to be made of lower weight materials, such as polymers thereby increase the load to weight ratio o...