US Patent Issued to ZF Friedrichshafen on July 15 for "Method for heating a gearbox for a working machine" (German Inventors)

ALEXANDRIA, Va., July 16 -- United States Patent no. 12,359,719, issued on July 15, was assigned to ZF Friedrichshafen AG (Friedrichshafen, Germany).

"Method for heating a gearbox for a working machine" was invented by Tobias Dieterich (Friedrichshafen, Germany), Sven Bieber (Markdorf, Germany) and Anton Arnold (Tettnang, Germany).

According to the abstract* released by the U.S. Patent & Trademark Office: "The present invention relates to a method for heating a transmission (1) for a working machine having a plurality of hydraulically actuated shifting elements (8; 9; 10; 11; 12; 13). The method involves the sending (III) of a closing signal for closing shifting elements (8; 9; 10; 11; 12; 13) in order to block the transmission (1). In ad...