ALEXANDRIA, Va., Oct. 21 -- United States Patent no. 12,444,527, issued on Oct. 14, was assigned to BEIJING JIAOTONG UNIVERSITY (Beijing) and TSINGHUA UNIVERSITY (Beijing).
"Device sealed with magnetic liquid" was invented by Decai Li (Beijing), Zhibin Wang (Beijing), Sijia Liu (Beijing) and Xinzhi He (Beijing).
According to the abstract* released by the U.S. Patent & Trademark Office: "Provided is a device sealed with a magnetic liquid. The device includes: a rotary shaft, a tank body, a control unit, a first module, a second module, a magnetic liquid, and a pole-tooth. The first module and the second module are in the same configuration, each consists of an outer shell, a left pole-shoe, an electromagnet, a control wiring, a right pole-...