US Patent Issued to QINGDAO UNIVERSITY OF TECHNOLOGY on Sept. 16 for "Three-dimensional parallel-triangular-shaped groove array surface for bearing and fabricating method thereof" (Chinese Inventors)

ALEXANDRIA, Va., Sept. 17 -- United States Patent no. 12,416,331, issued on Sept. 16, was assigned to QINGDAO UNIVERSITY OF TECHNOLOGY (Shandong, China).

"Three-dimensional parallel-triangular-shaped groove array surface for bearing and fabricating method thereof" was invented by Cheng Long Liu (Shandong, China), Feng Guo (Shandong, China), Bin Ju (Shandong, China), Xin Ming Li (Shandong, China), Qing Hua Bai (Shandong, China) and Shu Yi Li (Shandong, China).

According to the abstract* released by the U.S. Patent & Trademark Office: "A method for fabricating the three-dimensional comb-tooth-shaped groove array surface, the surface of the bearing is first etched with grooves having a certain depth by means of femtosecond lase, then a PTFE ...