US Patent Issued to SAFRAN, SAFRAN NACELLES on Aug. 11 for "Method for forming a sound attenuation structure provided with s-shaped cells" (French Inventors)

ALEXANDRIA, Va., Aug. 12 -- United States Patent no. 12,703,154, issued on Aug. 11, was assigned to SAFRAN (Paris) and SAFRAN NACELLES (Gonfreville l'Orcher, France).

"Method for forming a sound attenuation structure provided with s-shaped cells" was invented by Nicolas Pierre Lanfant (Moissy-Cramayel, France), Marc Versaevel (Moissy-Cramayel, France) and Fabien Arnaud (Moissy-Cramayel, France).

According to the abstract* released by the U.S. Patent & Trademark Office: "A method for forming an acoustic resonator panel for an aircraft propulsion assembly nacelle, the acoustic panel including cells with transverse internal obstacles in order to lengthen the path traveled by the sound waves. The method includes forming a perforated metal she...