US Patent Issued to ZF Friedrichshafen on June 10 for "Drive train for a mixer drum and control device for such a drive train" (German Inventors)

ALEXANDRIA, Va., June 18 -- United States Patent no. 12,325,152, issued on June 10, was assigned to ZF Friedrichshafen AG (Friedrichshafen, Germany).

"Drive train for a mixer drum and control device for such a drive train" was invented by Eduard Heilig (Friedrichshafen, Germany), Udo Gillich (Tettnang, Germany), Marcel Liesel (Friedrichshafen, Germany), David Worzler (Langenargen, Germany) and Raphael Zohner (Hunfelden, Germany).

According to the abstract* released by the U.S. Patent & Trademark Office: "A drive train for a mixer drum comprises a generator which outputs a first alternating voltage to a first converter. The first converter is connected to a high-voltage direct voltage network. A second converter is also provided which is c...