ALEXANDRIA, Va., Nov. 3 -- United States Patent no. 12,778,347, issued on Nov. 3, was assigned to GUANGDONG MIDEA CONSUMER ELECTRIC MANUFACTURING Co. LTD. (Foshan, China).

"Grinding device and grinding apparatus" was invented by Jinzhang Zhao (Foshan, China), Lixin Liu (Foshan, China) and Zhengjun Zhou (Foshan, China).

According to the abstract* released by the U.S. Patent & Trademark Office: "A grinding device includes a grinding assembly, a power output assembly, and a manipulation assembly. The grinding assembly includes a mounting member, a first grinding member, and a second grinding member cooperating with the first grinding member to implement grinding. The power output assembly includes a power element and a planetary gear mechani...