ALEXANDRIA, Va., Dec. 2 -- United States Patent no. 12,489,348, issued on Dec. 2, was assigned to HJ TONG SANG Co. LTD. (Gwangmyeong-si, South Korea) and HAN JIN TRADING & ENGINEERING Co. LTD. (Changwon-si, South Korea).
"Shaft ground ring to prevent bearing electrical erosion" was invented by Min Hun Kim (Gwangmyeong-si, South Korea) and Sung Yuhp Han (Busan, South Korea).
According to the abstract* released by the U.S. Patent & Trademark Office: "A shaft ground ring and an assembly thereof are disclosed. According to the present invention, there is provided a shaft ground ring fastened to a shaft of an electric motor to prevent electrical erosion caused by a leakage current, the shaft ground ring including a ring body formed to extend t...