Patents by Inventor Fabien ARNAUD

Fabien ARNAUD has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Method for forming a sound attenuation structure provided with s-shaped cells
    Patent number: 12703154
    Abstract: 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 sheet, stacking a plurality of thermoplastic cellular cores and at least one perforated sheet, two successive cellular cores being separated by a perforated sheet, compacting the stack, and thermoplastic welding.
    Type: Grant
    Filed: October 16, 2023
    Date of Patent: August 11, 2026
    Assignees: SAFRAN, SAFRAN NACELLES
    Inventors: Nicolas Pierre Lanfant, Marc Versaevel, Fabien Arnaud
  • METHOD FOR FORMING A SOUND ATTENUATION STRUCTURE PROVIDED WITH S-SHAPED CELLS
    Publication number: 20260008238
    Abstract: 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 sheet, stacking a plurality of thermoplastic cellular cores and at least one perforated sheet, two successive cellular cores being separated by a perforated sheet, compacting the stack, and thermoplastic welding.
    Type: Application
    Filed: October 16, 2023
    Publication date: January 8, 2026
    Inventors: Nicolas Pierre LANFANT, Marc VERSAEVEL, Fabien ARNAUD