ALEXANDRIA, Va., Aug. 12 -- United States Patent no. 12,704,081, issued on Aug. 11, was assigned to Pratt & Whitney Canada Corp. (Longueuil, Canada).
"Gas turbine engine with a rotor stage shroud" was invented by Philippe Savard (Terrebonne, Canada) and Guy Lefebvre (St-Bruno, Canada).
According to the abstract* released by the U.S. Patent & Trademark Office: "A gas turbine engine is provided that includes a compressor section, a combustor section, and a turbine section. The turbine section includes a rotor stage and an annular shroud assembly. The rotor stage includes a bladed rotor. The annular shroud assembly is disposed radially outside of the bladed rotor, and extends circumferentially around the bladed rotor, and is coupled with a t...