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:
Feb. 10, 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. The rotor blades each have an airfoil, an attachment section, a neck section, and a platform. The disk has forward and aft axial end surfaces, an outer radial surface that extends between the forward and aft axial end surfaces, and disk slots configured to receive rotor blade attachment sections. In a rotor stage assembled state, the attachment sections are fully received in the disk slots, and adjacent rotor blade platforms, and the outer radial surface of the disk form a tab slot. In the assembled state, a central segment of the seal member is engaged with a platform channel disposed at a platform lateral edge surface, and an axial locator tab of the seal member is disposed in the at least one tab slot.