ALEXANDRIA, Va., Oct. 28 -- United States Patent no. 12,448,890, issued on Oct. 21, was assigned to SAFRAN AIRCRAFT ENGINES (Paris).
"Blade for a ducted fan of a turbomachine" was invented by Matthieu Pierre Michel Dubosc (Moissy-Cramayel, France).
According to the abstract* released by the U.S. Patent & Trademark Office: "A blade for a ducted fan of a turbomachine includes an airfoil formed of plural airfoil sections stacked along an airfoil axis. A difference in sweep corresponding to a difference between a leading edge sweep and a trailing edge sweep of an airfoil section is substantially identical for any airfoil section having a height of between 10% and 20% of an airfoil height of the airfoil, and/or substantially identical for any ...