US Patent Issued to Pratt & Whitney Canada on Feb. 10 for "Gas turbine engine rotor stage with seal members" (Canadian Inventors)

ALEXANDRIA, Va., Feb. 11 -- United States Patent no. 12,546,229, issued on Feb. 10, was assigned to Pratt & Whitney Canada Corp. (Longueuil, Canada).

"Gas turbine engine rotor stage with seal members" was invented by Sylvain Vignola (St-Basile Grand, Canada) and Gabrielle Lamarche (Saint-Roch de Richelieu, Canada).

According to the abstract* released by the U.S. Patent & Trademark Office: "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 ...