ALEXANDRIA, Va., Jan. 28 -- United States Patent no. 12,533,768, issued on Jan. 27, was assigned to C. & E. FEIN GMBH (Schwabisch Gmund-Bargau, Germany).
"Power tool" was invented by Wolfgang Duernegger (Schorndorf, Germany) and Tobias Hokenmaier (Rechberghausen, Germany).
According to the abstract* released by the U.S. Patent & Trademark Office: "A power tool, in particular an angle grinder, having a drive motor accommodated in a housing which drives a rotor shaft, a tool spindle comprising a tool holder which is preferentially connected to the rotor shaft in a power-transmitting manner by a gearing, as well as a control switch for activating the drive motor, wherein the control switch comprises a first switching element which is pivotab...