ALEXANDRIA, Va., Feb. 3 -- United States Patent no. 12,540,652, issued on Feb. 3, was assigned to STANLEY BLACK & DECKER MEA FZE (Dubai, United Arab Emirates).
"Ratchet spring" was invented by Tseng Sheng Wang (Taichung, Taiwan) and Yu-Wei Tsai (Taichung, Taiwan).
According to the abstract* released by the U.S. Patent & Trademark Office: "A spring configured to be fixed to a housing and nested within a dial that is rotatable about the spring. The dial has a plurality of spaced apart inwardly facing teeth that are adjacent the spring. The spring is configured to facilitate rotation of the dial about the spring. The spring includes a central body having at least one anchor configured to connect the spring to the housing. The spring also inc...