The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 23, 2026
Filed:
Jun. 26, 2025
Applicant:
Pratt & Whitney Canada Corp., Longueuil, CA;
Inventor:
Tibor Urac, Mississauga, CA;
Assignee:
PRATT & WHITNEY CANADA CORP., Longueuil, CA;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B23K 20/12 (2006.01); F04D 29/02 (2006.01); F04D 29/28 (2006.01); B23K 103/14 (2006.01);
U.S. Cl.
CPC ...
F04D 29/023 (2013.01); B23K 20/129 (2013.01); F04D 29/284 (2013.01); B23K 2103/14 (2018.08);
Abstract
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.