ALEXANDRIA, Va., June 4 -- United States Patent no. 12,322,933, issued on June 3, was assigned to Schneider Electric USA Inc. (Boston).

"Switching device with reduced partial discharge and improved triple point characteristics" was invented by Edgar Avalos Ortiz (Murfreesboro, Tenn.), Pengkai Han (Xi'an, China), Francois Gentils (Grenoble, France), Sergio Flores (Smyrna, Tenn.), Matthew Alan Williford (Nashville, Tenn.) and David Dos Santos (Nashville, Tenn.).

According to the abstract* released by the U.S. Patent & Trademark Office: "A draw out circuit breaker has a reduced partial discharge in insulation surrounding a primary stab bus. A circular disk plate on one end of the bus includes tapped inserts located at a radial separation dis...