US Patent Issued to SAFRAN AIRCRAFT ENGINES, SAFRAN on March 18 for "Method for producing a preform for part of a blade or propeller by winding a weave obtained by weaving to shape" (French Inventors)

ALEXANDRIA, Va., March 19 -- United States Patent no. 12,251,890, issued on March 18, was assigned to SAFRAN AIRCRAFT ENGINES (Paris) and SAFRAN (Paris).

"Method for producing a preform for part of a blade or propeller by winding a weave obtained by weaving to shape" was invented by Francois Charleux (Moissy-Cramayel, France) and Dominique Marie Christian Coupe (Moissy-Cramayel, France).

According to the abstract* released by the U.S. Patent & Trademark Office: "A method for manufacturing a fibrous preform for a blade or propeller part of a turbomachine, includes at least one fixing base extended by a mounting portion of an aerodynamic profile, the method including the winding of a fibrous texture, obtained by contour weaving, on a substr...