ALEXANDRIA, Va., Jan. 29 -- United States Patent no. 12,208,500, issued on Jan. 28, was assigned to MOBILETRON ELECTRONICS Co. LTD. (Taichung, Taiwan).
"Control device of power tool" was invented by Chih-Hsiang Liang (Taichung, Taiwan).
According to the abstract* released by the U.S. Patent & Trademark Office: "A control device of a power tool includes a trigger mounting bracket, a control circuit board, a control trigger, and a direction-switching button. The control circuit board is disposed on the trigger mounting bracket and has a 3D Hall sensor. The control trigger has a first magnet and is disposed on the trigger mounting bracket to approach or move away from the 3D Hall sensor along a first axis. The direction-switching button has ...