ALEXANDRIA, Va., June 19 -- United States Patent no. 12,330,324, issued on June 17.
"Folding knife containing blade replacement structure" was invented by Huan Zhang (Nanjing, China).
According to the abstract* released by the U.S. Patent & Trademark Office: "The present invention provides a folding knife containing a blade replacement structure, including a handle body (1), a blade holder (2), a blade (3), and a connection pin (4). The blade holder (2) includes a first clamp plate (21), a second clamp plate (22), a spacer (23), and an elastic member (221). The first clamp plate (21), the second clamp plate (22), and the spacer (23) together enclose an embedding slot that allows the blade to be inserted. When the folding knife is complete...