US Patent Issued to YIH CHENG FACTORY on Sept. 15 for "Toolbox handle structure of combination screwdriver" (Taiwanese Inventor)

ALEXANDRIA, Va., Sept. 15 -- United States Patent no. 12,734,668, issued on Sept. 15, was assigned to YIH CHENG FACTORY Co. LTD. (Nantuo, Taiwan).

"Toolbox handle structure of combination screwdriver" was invented by Wei-Cheng Chen (Nantuo, Taiwan).

According to the abstract* released by the U.S. Patent & Trademark Office: "A toolbox handle structure includes a chamber and a tool slot, and includes an opening on one end. A receiving tube is movably arranged in the chamber. An inner sleeve is inserted in the receiving tube. A bead-holding recess and a hole are disposed on one side adjacent to the opening. A pressing spring is disposed in the inner sleeve to abut against the pressing set. A bead is disposed in the bead-holding recess and pu...