ALEXANDRIA, Va., June 19 -- United States Patent no. 12,330,274, issued on June 17, was assigned to Nanjing Chervon Industry Co. Ltd. (Nanjing, China).
"Impact tool" was invented by Guangjie Ji (Nanjing, China), Hongtao Ke (Nanjing, China) and Shuai Chen (Nanjing, China).
According to the abstract* released by the U.S. Patent & Trademark Office: "An impact tool includes a housing; an electric motor including a motor shaft rotating about a first axis; an output shaft used for outputting power and rotating about an output axis; and an impact assembly used for providing an impact force for the output shaft and including a main shaft, where the main shaft is driven by the motor shaft to rotate about an axis of the main shaft. The housing incl...