ALEXANDRIA, Va., Aug. 25 -- United States Patent no. 12,719,257, issued on Aug. 25, was assigned to SUPERGRID INSTITUTE (Villeurbanne, France).
"Device and method for disconnecting a high-voltage direct electric current with a fuse, and oscillating-current overload system" was invented by Wolfgang Grieshaber (Lyons, France).
According to the abstract* released by the U.S. Patent & Trademark Office: "A device for disconnecting a high-voltage direct electric current via a fuse interposed in a main branch, includes an overload system able to generate an oscillating overload current which, in the main branch, over at least one half-period of oscillation, is added to a fault current in terms of absolute value to ensure the melting of the fuse....