US Patent Issued to Rolls-Royce North American Technologies on April 21 for "Double bellows valve for preventing undesired valve failure positions" (Indiana Inventor)

ALEXANDRIA, Va., April 21 -- United States Patent no. 12,607,266, issued on April 21, was assigned to Rolls-Royce North American Technologies Inc. (Indianapolis).

"Double bellows valve for preventing undesired valve failure positions" was invented by Ryan C. Humes (Indianapolis).

According to the abstract* released by the U.S. Patent & Trademark Office: "A gas turbine engine includes a combustor and a valve coupled to the combustor. The valve includes a valve body, a valve stem, and an actuator. The valve body is formed to define an air chamber. The valve stem is movable between a closed position and an open position. The actuator is configured to move selectively the valve stem between the closed position and the open position."

The pat...