US Patent Issued to Mitsubishi Electric on Oct. 27 for "Vacuum circuit breaker" (Japanese Inventors)

ALEXANDRIA, Va., Oct. 27 -- United States Patent no. 12,776,462, issued on Oct. 27, was assigned to Mitsubishi Electric Corp. (Tokyo).

"Vacuum circuit breaker" was invented by Shinpei Naka (Tokyo) and Yasunori Nakamura (Tokyo).

According to the abstract* released by the U.S. Patent & Trademark Office: "A vacuum circuit breaker includes: a tank having a tubular shape; a vacuum valve including a movable contact, a stationary contact, a movable lead electrically connected to the movable contact, and a stationary lead electrically connected to the stationary contact, and accommodated in the tank; and a contact driver that opens and closes the movable contact and the stationary contact by moving the movable contact by a driving force transmitt...