US Patent Issued to SAFRAN AIRCRAFT ENGINES, SAFRAN on Nov. 25 for "Propeller blade or vane having a hollow composite root" (French Inventors)

ALEXANDRIA, Va., Nov. 25 -- United States Patent no. 12,480,411, issued on Nov. 25, was assigned to SAFRAN AIRCRAFT ENGINES (Paris) and SAFRAN (Paris).

"Propeller blade or vane having a hollow composite root" was invented by Clement Pierre Postec (Moissy-Cramayel, France), Vincent Lionel Rene Maison (Moissy-Cramayel, France), Pierre Jean Faivre D'arcier (Moissy-Cramayel, France), Matteo Minervino (Moissy-Cramayel, France) and Francois Charleux (Moissy-Cramayel, France).

According to the abstract* released by the U.S. Patent & Trademark Office: "A propeller blade or airfoil for a turboprop engine made from composite material including a matrix-densified fibrous reinforcement, the propeller blade or airfoil including, in the direction of it...