US Patent Issued to BEIJING JIAOTONG UNIVERSITY, TSINGHUA UNIVERSITY on March 3 for "Device sealed with magnetic liquid" (Chinese Inventors)

ALEXANDRIA, Va., March 3 -- United States Patent no. 12,565,931, issued on March 3, 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 first bearing, a tank body, a first magnetism isolation ring, a first gasket ring, a first pole-shoe, a permanent magnet, a second pole-shoe, a second gasket ring, a second magnetism isolation ring, a second bearing, an end cover, a pole-tooth and a water delivery co...