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:
Sep. 15, 2026
Filed:
Dec. 30, 2024
Pratt & Whitney Canada Corp., Longueuil, CA;
Sylvain Vignola, St-Basile Grand, CA;
Gabrielle Lamarche, Saint-Roch de Richelieu, CA;
Pratt & Whitney Canada Corp., Longueuil, CA;
Abstract
A rotor stage for a gas turbine engine is provided that includes first and second rotor blades, a disk, and a seal member. Each rotor blade has an airfoil, an attachment section, a neck section, and a platform. The platform extends laterally outward from the neck section. The platform has platform inner and outer radial surfaces. The disk has forward and aft axial end surfaces and disk slots. A first rotor blade includes a first rib extending outwardly from a platform inner radial surface. In an assembled state, the blade attachment sections are received in the disk slots. In the assembled state, the rotor blade platforms and an outer radial surface of the disk form a tab slot. In the assembled state, the first rib locates the seal member relative to the platform lateral edge surfaces.