ALEXANDRIA, Va., Sept. 30 -- United States Patent no. 12,747,670, issued on Sept. 29, was assigned to GE AVIATION SYSTEMS Ltd. (Cheltenham, Great Britain).

"Propeller assembly including a rigging free beta tube" was invented by Nicholas Bown (Corsham, Great Britain).

According to the abstract* released by the U.S. Patent & Trademark Office: "An example apparatus includes a propeller assembly including a blade and a propeller shaft, the propeller shaft including a first gallery and a second gallery; and a beta tube rotationally fixed to the propeller shaft, the beta tube axially translating with respect to the propeller shaft, the beta tube including a first connection, the first connection to provide hydraulic fluid to a pitch chamber to ...