ALEXANDRIA, Va., Dec. 23 -- United States Patent no. 12,502,787, issued on Dec. 23, was assigned to Taiyuan University of Science and Technology (Taiyuan, China).

"Conveyor belt lifting mechanism and online operation and maintenance robot for pipe belt conveyor" was invented by Lidong Zhou (Taiyuan, China), Peng Wei (Taiyuan, China), Zengfa Wu (Taiyuan, China), Haijun Hu (Taiyuan, China), Yuan Yuan (Taiyuan, China), Ying Wang (Taiyuan, China), Huiqiang Yao (Taiyuan, China), Yuan Liu (Taiyuan, China), Zhao Yang (Taiyuan, China) and Hongwei Guo (Taiyuan, China).

According to the abstract* released by the U.S. Patent & Trademark Office: "A conveyor belt lifting mechanism which includes an L-shaped arm, a telescopic arm, and a supporting shaf...