US Patent Issued to Greenworks (Jiangsu) on Nov. 3 for "Trimmer head" (Chinese Inventor)

ALEXANDRIA, Va., Nov. 3 -- United States Patent no. 12,778,003, issued on Nov. 3, was assigned to Greenworks (Jiangsu) Co. Ltd (Changzhou, China).

"Trimmer head" was invented by Guoqing Min (Changzhou, China).

According to the abstract* released by the U.S. Patent & Trademark Office: "A trimmer head is configured to be connected with a driving shaft of a driving component. The trimmer head includes a base and a bump head assembled and connected with the base. The trimmer head further includes a locking insert assembled and fixed in the base and the bump head. A first end of the locking insert extends into the bump head, and a second end of the locking insert passes through the base to be connected with the driving shaft. The locking inser...