ALEXANDRIA, Va., Aug. 20 -- United States Patent no. 12,394,562, issued on Aug. 19, was assigned to Hitachi Energy Ltd (Zurich).

"Dry transformer" was invented by Yong Wang (Brilon, Germany), Wolfgang Monig (Brilon, Germany), Frank Cornelius (Brilon, Germany) and Jens Tepper (Wolfenbuttel, Germany).

According to the abstract* released by the U.S. Patent & Trademark Office: "A dry transformer to be mounted on or under or in a vessel or means of transportation, in particular a rail car or power car of a train or a ship, includes at least one core and at least one winding. The winding surrounds the core and the core and the winding are parts of a coil. The coil and/or the core and/or the winding are mechanically connected to an outer support...