ALEXANDRIA, Va., Dec. 2 -- United States Patent no. 12,489,345, issued on Dec. 2, was assigned to Hilti AG (Schaan, Liechtenstein).
"Hall board inside the end windings" was invented by Konrad Artmann (Schondorf, Germany), Lothar Dietl (Kaufering, Germany), Tobias Schmid (Emmenhausen, Germany) and Helmut Burger (Unterdiessen, Germany).
According to the abstract* released by the U.S. Patent & Trademark Office: "An electric motor containing a board holder and an angle measuring unit with at least one Hall sensor for detecting a rotation angle and at least two hooks for receiving and holding a winding wire, wherein the angle measuring unit is designed to commutate the electric motor as a function of the detected rotation angle. The board hold...