ALEXANDRIA, Va., Sept. 1 -- United States Patent no. 12,722,723, issued on Sept. 1, was assigned to LIEBHERR-WERK NENZING GMBH (Nenzing, Austria).
"Work machine comprising an electric traction drive" was invented by Paul Schall (Feldkirch, Austria), Markus Schwarzhans (Schruns, Austria) and Dominik Wachter (Innerbraz, Austria).
According to the abstract* released by the U.S. Patent & Trademark Office: "The disclosure relates to a work machine, in particular a duty-cycle crawler crane, having an undercarriage which comprises a middle part and at least one crawler carrier connected to the middle part and having at least one electric traction drive, wherein at least one energy transmission line for supplying power to the traction drive and a...