ALEXANDRIA, Va., Sept. 8 -- United States Patent no. 12,732,128, issued on Sept. 8, was assigned to Hilti AG (Schaan, Liechtenstein).
"Mains-operable power tool" was invented by Walter Wissmach (Munich), Christian Augustin (Pottmes, Germany), Anton Kidess (Landsberg am Lech, Germany), Markus Scherbaum (Gennach, Germany) and Justus Freischle (Landsberg, Germany).
According to the abstract* released by the U.S. Patent & Trademark Office: "A mains-operable power tool having a mains connection, a rectifier connected downstream of the mains connection, and an electric motor with an upstream motor stage, wherein the rectifier and the motor stage are connected via an intermediate circuit having a smoothing capacitor connected in parallel with th...