US Patent Issued to PRATT & WHITNEY CANADA on June 23 for "Bi-metal impeller rotor" (Canadian Inventor)

ALEXANDRIA, Va., July 15 -- United States Patent no. 12,663,014, issued on June 23, was assigned to PRATT & WHITNEY CANADA CORP. (Longueuil, Canada).

"Bi-metal impeller rotor" was invented by Tibor Urac (Mississauga, Canada).

According to the abstract* released by the U.S. Patent & Trademark Office: "A method of manufacturing an impeller for a compressor section of a gas turbine engine, comprises forging a dual alloy workpiece having an inner portion welded to an outer portion along a conical weld line. The forging includes deforming the conical weld line to provide a non-linear interface between the inner portion and the outer portion."

The patent was filed on June 26, 2025, under Application No. 19/250,227.

*For further information, i...