ALEXANDRIA, Va., April 21 -- United States Patent no. 12,609,252, issued on April 21, was assigned to Nanjing Chervon Industry Co. Ltd. (Nanjing, China).
"Power tool" was invented by Peng Teng (Nanjing, China) and Lishuang Liu (Nanjing, China).
According to the abstract* released by the U.S. Patent & Trademark Office: "A power tool includes a housing, an electric motor, a switch, an operating element, a contact rod, a pressing block, and a reset element. The electric motor is disposed in the housing. The switch includes a trigger point for controlling the electric motor to be turned on. The operating element is operated so that the switch is triggered. The contact rod is supported by the housing, where the operating element is capable of ...