ALEXANDRIA, Va., March 31 -- United States Patent no. 12,589,923, issued on March 31, was assigned to XIAMEN WORTHFIND CO LTD. (Fujian, China).
"Magnetic suction structure of vacuum cup" was invented by Jiasong Li (Fujian, China).
According to the abstract* released by the U.S. Patent & Trademark Office: "A magnetic suction structure of a vacuum cup, having a mounting piece, a pivot piece and a cup lid; the vacuum cup has a water outlet; the mounting piece is mounted on a periphery of the water outlet; the pivot piece is rotatably connected with the mounting piece; the pivot piece has a through hole; when the pivot piece is rotated to close against the mounting piece to achieve a close state, the through hole sleeves the water outlet; whe...