ALEXANDRIA, Va., Oct. 8 -- United States Patent no. 12,434,248, issued on Oct. 7, was assigned to INFINITY INTELLIGENCE & INFORMATION (SUZHOU) TECHNOLOGY Co. LTD. (Suzhou, China).

"Solid material grinding method and device with adjustable discharge size" was invented by Ying Jiang (Suzhou, China), Yunfei Luo (Suzhou, China), Xun Shao (Suzhou, China) and Weidi Yin (Suzhou, China).

According to the abstract* released by the U.S. Patent & Trademark Office: "A solid material grinding method and device with an adjustable discharge size includes a grinding disc housing, and a movable grinding disc and a stationary grinding disc provided in a grinding disc cavity of the grinding disc housing coaxially with grinding surfaces opposite to each othe...