ALEXANDRIA, Va., March 31 -- United States Patent no. 12,589,657, issued on March 31, was assigned to JINAN SHANGHAI FLUID CONTROL EQUIPMENT Co. LTD (Shandong, China).

"Wheel-track magnetic suspension vehicle system and application thereof" was invented by Feng Cai (Shandong, China).

According to the abstract* released by the U.S. Patent & Trademark Office: "A wheel-track magnetic suspension vehicle system includes a U-shaped channel and a magnetically-suspended vehicle therein. Arranged at the bottom of the U-shaped channel are two permanent magnet roadbeds and one wheel roadbed. Provided on the two permanent magnet roadbeds is a permanent magnet A; the magnetically-suspended vehicle includes a compartment body, a chassis, a front drive ...