ALEXANDRIA, Va., July 16 -- United States Patent no. 12,358,539, issued on July 15, was assigned to CRRC QINGDAO SIFANG Co. LTD. (Shandong, China).
"Linear motor for maglev train, and maglev train" was invented by Jianying Liang (Shandong, China), Xiankai Liu (Shandong, China), Donghua Wu (Shandong, China), Weitao Han (Shandong, China), Jin Luan (Shandong, China) and Fujie Jiang (Shandong, China).
According to the abstract* released by the U.S. Patent & Trademark Office: "A linear motor comprises a primary part and a secondary part opposite to each other. An air gap is reserved between the primary and secondary parts. The air gap has first spacing in non-operating state and second spacing in operating state. The side surface of the primar...