ALEXANDRIA, Va., Sept. 15 -- United States Patent no. 12,734,666, issued on Sept. 15, was assigned to ZHEJIANG PRULDE ELECTRIC APPLIANCE Co. LTD. (Jinhua, China).
"Power tool facilitating replacement of operating head" was invented by Chenghao Yang (Jinhua, China).
According to the abstract* released by the U.S. Patent & Trademark Office: "The power tool facilitating replacement of an operating head includes a housing and a drive motor disposed in the housing, the drive motor being in transmission connection with an output shaft, the output shaft being mounted with a shaft-locking mechanism, the shaft-locking mechanism including a first clutch piece, a second clutch piece, and a control pusher, the control pusher being in transmission con...