US Patent Issued to MITSUBISHI ELECTRIC on Aug. 5 for "Vacuum circuit breaker" (Japanese Inventors)

ALEXANDRIA, Va., Aug. 6 -- United States Patent no. 12,381,051, issued on Aug. 5, was assigned to MITSUBISHI ELECTRIC Corp. (Tokyo).

"Vacuum circuit breaker" was invented by Naoya Aihara (Tokyo), Yasunori Nakamura (Tokyo) and Taiki Donen (Tokyo).

According to the abstract* released by the U.S. Patent & Trademark Office: "A vacuum circuit breaker comprises: a grounded tank; a vacuum chamber disposed in the grounded tank; an insulating tube disposed between one side end surface inside the grounded tank and one side end surface outside the vacuum chamber; a fixed rod inserted in the vacuum chamber; a fixed-side electrode disposed in the vacuum chamber at one end of the fixed rod; a movable-side electrode disposed in the vacuum chamber so as ...