US Patent Issued to Wirtgen on Sept. 29 for "Predominantly electrically operated earth working machine" (German Inventors)

ALEXANDRIA, Va., Sept. 30 -- United States Patent no. 12,747,547, issued on Sept. 29, was assigned to Wirtgen GmbH (Windhagen, Germany).

"Predominantly electrically operated earth working machine" was invented by Markus Bach (Bonn, Germany) and Christian Berning (Zuplich, Germany).

According to the abstract* released by the U.S. Patent & Trademark Office: "A self-propelled earth working machine includes a machine frame and a traveling gear, the traveling gear including drive units rollable on a contact subsurface of the earth working machine, the machine frame supporting a working apparatus, the earth working machine having as a main functional unit a work drive in order to drive the working apparatus to perform a work movement for earth ...