ALEXANDRIA, Va., Nov. 3 -- United States Patent no. 12,781,789, issued on Nov. 3.
"Self-locking hook to avoid unexpected opening" was invented by Ying-Chuan Yen (Yuanlin City, Taiwan).
According to the abstract* released by the U.S. Patent & Trademark Office: "What is disclosed in the present invention is a self-locking hook to avoid unexpected opening. When a press-button is pressed down, a spring is compressed, a pressing arm and an axle pin are completely inserted into an insertion hole, at this point, the axle pin leaves a transverse clipping position and forms an openable state with a support arm, in which they can rotate along the curved slide rail in a mounting slot. An elastic arm is mounted inside the mounting slot and is pressed...