ALEXANDRIA, Va., July 15 -- United States Patent no. 12,662,072, issued on June 23, was assigned to LIEBHERR-WERK NENZING GMBH (Nenzing, Austria).
"Work machine with electric traction drive" was invented by Paul Schall (Feldkirch, 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 which is connected to the middle part and comprises at least one electric traction drive, wherein at least one supply line runs from the middle part to the traction drive and is connected to the latter in a disconnectable manner via a first connection. Accordi...