ALEXANDRIA, Va., Aug. 20 -- United States Patent no. 12,392,253, issued on Aug. 19, was assigned to SAFRAN AIRCRAFT ENGINES (Paris).

"Method for maintaining a bladed wheel of a high-pressure turbine of a turbomachine" was invented by Tangi Rumon Brusq (Moissy-Cramayel, France) and Vincent Gerard Michel Moreau (Moissy-Cramayel, France).

According to the abstract* released by the U.S. Patent & Trademark Office: "A method for maintaining a bladed wheel of a high-pressure turbine of a turbomachine having a disc with cavities, and blades extending radially from a radially internal root mounted in a cavity of the disc, the root being supported on the disc by means of surfaces of the root and of the disc forming bearing surfaces. At least one fo...