US Patent Issued to SAFRAN on Feb. 24 for "Fan blade or vane with cross-shaped or star-shaped composite root" (French Inventors)

ALEXANDRIA, Va., Feb. 24 -- United States Patent no. 12,558,857, issued on Feb. 24, was assigned to SAFRAN (Paris).

"Fan blade or vane with cross-shaped or star-shaped composite root" was invented by Dominique Marie Christian Coupe (Moissy Cramayel, France), Pierre Jean Faivre D'Arcier (Moissy Cramayel, France), Marc-Antoine Andre Louis Colot (Moissy Cramayel, France) and Enrico Giovanni Obert (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 span direction, a root and an aerodynamic profile. The fiber reinforcem...