ALEXANDRIA, Va., Nov. 11 -- United States Patent no. 12,467,283, issued on Nov. 11.
"Pull-down lock" was invented by Junhui Zhang (Zhejiang, China), Kai Xie (Zhejiang, China) and Chen Chen (Zhejiang, China).
According to the abstract* released by the U.S. Patent & Trademark Office: "A pull-down lock, may include a top cover, wherein the bottom end of the top cover is fixedly connected with the pull rod, and the bottom end of the pull rod is fixedly connected with the lock head; besides, the lock bolt component for limiting and fixing the lock head is arranged in the movable part upper cover, and the movable part base is slidably inserted into the bottom end of the movable part upper cover; the movable part base is internally provided with...