US Patent Issued to SAFRAN, SAFRAN AIRCRAFT ENGINES on Sept. 30 for "Propeller blade or airfoil with wound composite root" (French Inventors)

ALEXANDRIA, Va., Sept. 30 -- United States Patent no. 12,427,741, issued on Sept. 30, was assigned to SAFRAN (Paris) and SAFRAN AIRCRAFT ENGINES (Paris).

"Propeller blade or airfoil with wound composite root" was invented by Pierre Jean Faivre D'arcier (Moissy Cramayel, France), Clement Pierre Postec (Moissy Cramayel, France), Francois Charleux (Moissy Cramayel, France) and Matteo Minervino (Moissy Cramayel, France).

According to the abstract* released by the U.S. Patent & Trademark Office: "A turboprop engine blade or propeller airfoil made of composite material includes a fiber reinforcement densified by a matrix, the blade or propeller airfoil including along a longitudinal direction a root and an aerodynamic profile. The fiber reinfor...