ALEXANDRIA, Va., Oct. 6 -- United States Patent no. 12,753,708, issued on Oct. 6, was assigned to Pratt & Whitney Canada Corp. (Longueuil, Canada).

"Deaerator impeller rotor with gear rotor" was invented by Hugues Pellerin (Montreal).

According to the abstract* released by the U.S. Patent & Trademark Office: "A fluid system is provided for a powerplant. This fluid system includes a gear rotor and a deaerator impeller rotor. The gear rotor is rotatable about an axis. The gear rotor includes a web, a toothed rim and a plurality of liquid ports. The web projects radially inward towards the axis from the toothed rim. The toothed rim circumscribes the web. Each of the liquid ports extends axially through the web. The deaerator impeller rotor i...