ALEXANDRIA, Va., Sept. 30 -- United States Patent no. 12,749,616, issued on Sept. 29, was assigned to Exxelia (Paris).
"Electric transformer with an increased total leakage impedance" was invented by Victor William Quinn (Rush, N.Y.) and Benoit Bertrand Hugues Krafft (Brin sur Seille, France).
According to the abstract* released by the U.S. Patent & Trademark Office: "An electric transformer comprising a first magnetic circuit coupling a primary coil and a secondary coil, the first magnetic circuit comprising a first limb extending along a vertical axis, the primary coil comprising inner and outer primary coils connected in series, the inner primary coil, the secondary coil, and the outer primary coil being cylindrical and arranged concen...