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:
Jan. 27, 2026
Filed:
Sep. 16, 2022
Pratt & Whitney Canada Corp., Longueuil, CA;
Mateusz Kesek, Nagawczyna, PL;
Tomasz Rozputynski, Hyżne, PL;
PRATT & WHITNEY CANADA CORP., Longueuil, CA;
Abstract
A propeller shaft assembly for an aircraft engine includes a shaft having a bore extending through the shaft at a front end thereof, the front end of the shaft having an outer surface facing radially outwardly from the shaft and an inner surface spaced apart from the outer surface and facing radially inwardly to the bore. A front flange extends radially outwardly on the outer surface, the front flange defining a hub side surface adapted to abut with a propeller hub. A reinforcement rib extends radially inwardly towards a central axis of the shaft. At least part of the reinforcement rib is radially aligned with the front flange.