US Patent Issued to Shanghai Ming Wei Hardware on March 17 for "Narrow-type door-lock driving device" (Chinese Inventor)

ALEXANDRIA, Va., March 17 -- United States Patent no. 12,577,806, issued on March 17, was assigned to Shanghai Ming Wei Hardware Co. Ltd. (Shanghai).

"Narrow-type door-lock driving device" was invented by Jung-Chung Chen (Shanghai).

According to the abstract* released by the U.S. Patent & Trademark Office: "A narrow-type door-lock driving device, disposed at a sectional door board, includes a base, a status switching mechanism, a status switching lock, a handle and a lock core driving mechanism. The status switching mechanism includes a lever and a stopper. The status switching lock connects with the lever and moves between a forbidden opening position and an allowing opening position by the lever. The lock core driving mechanism connects...