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:
Mar. 10, 2026
Filed:
Feb. 03, 2023
Raytheon Technologies Corporation, Farmington, CT (US);
Jeremiah C. Lee, Coventry, CT (US);
Paul Attridge, Colchester, CT (US);
Zaffir A. Chaudhry, South Glastonbury, CT (US);
Scott Goyette, Moosup, CT (US);
Gregory S. Hagen, Glastonbury, CT (US);
David L. Lincoln, Cromwell, CT (US);
Kin Gwn Lore, Belmont, MA (US);
RTX Corporation, Farmington, CT (US);
Abstract
Methods of inspecting fan blades of a gas turbine engine for abnormalities are disclosed. One method utilizes a neural network to determine whether a photographic image of at least one fan blade depicts an abnormality of the at least one fan blade. Another method uses a dimensional reduction technique on one or more first photographic images that depict at least one first fan blade to obtain basis vectors, utilizes the basis vectors to obtain a reconstructed version of a second photographic image that depicts at least one second fan blade, and determines whether the at least one second fan blade includes an abnormality based on a difference between the second photographic image and the reconstructed version of the second photographic image. Another method determines whether a fan blade includes an abnormality based on contrast differences between adjacent areas of an image.