US Patent Issued to NATIONAL UNIVERSITY OF DEFENSE TECHNOLOGY on Oct. 20 for "Permanent magnet-electromagnet hybrid array type magnetorheological polishing device" (Chinese Inventors)

ALEXANDRIA, Va., Oct. 21 -- United States Patent no. 12,766,656, issued on Oct. 20, was assigned to NATIONAL UNIVERSITY OF DEFENSE TECHNOLOGY (Hunan, China).

"Permanent magnet-electromagnet hybrid array type magnetorheological polishing device" was invented by Feng Shi (Hunan, China), Bo Wang (Hunan, China), Guipeng Tie (Hunan, China), Ci Song (Hunan, China), Ye Tian (Hunan, China), Shuo Qiao (Hunan, China) and Xing Peng (Hunan, China).

According to the abstract* released by the U.S. Patent & Trademark Office: "The disclosure relates to a permanent magnet-electromagnet hybrid array type magnetorheological polishing device, comprising a polishing mechanism, a main excitation device arranged on the polishing mechanism, and auxiliary permane...