ALEXANDRIA, Va., June 17 -- United States Patent no. 12,311,509, issued on May 27, was assigned to TECHWAY INDUSTRIAL Co. LTD. (Taichung, Taiwan).
"Structure for replacing shear wrench head" was invented by Fu-Hsiang Chung (Taichung, Taiwan) and Cheng Nan Lien (Taichung, Taiwan).
According to the abstract* released by the U.S. Patent & Trademark Office: "A structure for replacing shear wrench head comprises a body having an inner sleeve portion, a ring groove disposed around the inner sleeve portion and a first assembly portion disposed on the inner sleeve portion; a chuck unit having a second assembly portion assembled with the first assembly portion; a central sleeve portion having at least one through hole with a locking member provide...