ALEXANDRIA, Va., July 21 -- United States Patent no. 12,685,411, issued on July 21, was assigned to Foshan Lanfeilin Sanitary Ware Co. Ltd. (Foshan, China).
"Frameless and hidden pulley bathroom door" was invented by Haisheng Xiao (Foshan, China).
According to the abstract* released by the U.S. Patent & Trademark Office: "A pulley bathroom door includes a fixed rail and a sliding door installed at a bottom of the fixed rail. The sliding door includes a fan body and a pulley rotatably connected to the fan body. The pulley is installed on one side of a top of the fan body, and the fixed rail includes a rail body. The rail body includes a bottom plate, side plates provided on two sides of the bottom plate, and guide rails installed on the si...