ALEXANDRIA, Va., Dec. 2 -- United States Patent no. 12,485,521, issued on Dec. 2, was assigned to JIANGSU DONGCHENG TOOLS TECHNOLOGY Co. LTD (Jiangsu, China).
"Electric tool" was invented by Yuanwei Pu (Jiangsu, China).
According to the abstract* released by the U.S. Patent & Trademark Office: "The present disclosure relates to an electric tool, including a housing, a motor accommodated in the housing, a transmission mechanism, and an impact mechanism, where the impact mechanism includes an air cylinder, and an impact rod, a guide device, an impact hammer, and a piston arranged in the air cylinder; and when the impact rod moves along a direction opposite to an output direction, a second guide part sequentially supports a third section and...