US Patent Issued to Wiwynn on June 17 for "Tool-free screw assembly, tool-free screw and accessory of tool-free screw" (Taiwanese Inventors)

ALEXANDRIA, Va., June 19 -- United States Patent no. 12,331,771, issued on June 17, was assigned to Wiwynn Corp. (New Taipei, Taiwan).

"Tool-free screw assembly, tool-free screw and accessory of tool-free screw" was invented by Yung-Ti Chung (New Taipei, Taiwan), Jheng-Ying Jiang (New Taipei, Taiwan) and Chih-Wei Tseng (New Taipei, Taiwan).

According to the abstract* released by the U.S. Patent & Trademark Office: "Disclosed is a tool-free screw assembly includes a base, a stud, and a sleeve coaxially disposed on a center axis. The base has a second latching mechanism. The stud movably disposed through the base has a third latching mechanism. The sleeve movably sheathing over the stud has a first latching mechanism. In a first state, the ...