The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jan. 17, 2017
Filed:
May. 12, 2011
Jacques Michel Albert Julliard, Hericy, FR;
Jacky Novi Mardjono, Nogent sur Marne, FR;
Georges Jean Xavier Riou, Melun, FR;
Benjamin Andre Francois Poirier, Saint Augustin, FR;
Jean-michel Jean-francois Ville, Compiegne, FR;
Jacques Michel Albert Julliard, Hericy, FR;
Jacky Novi Mardjono, Nogent sur Marne, FR;
Georges Jean Xavier Riou, Melun, FR;
Benjamin Andre Francois Poirier, Saint Augustin, FR;
Jean-Michel Jean-Francois Ville, Compiegne, FR;
SNECMA, Paris, FR;
CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE, Paris, FR;
UNIVERSITE DE TECHNOLOGIE DE COMPIEGNE, Compiegne, FR;
Abstract
A multilayer acoustic treatment panel including a first cellular-structure core sandwiched between a perforated skin and an intermediate skin; and a second cellular-structure core sandwiched between the intermediate skin and a continuous skin. The perforated skin includes at least one pair of high-porosity zones presenting a perforation ratio greater than a perforation ratio of a remainder of the perforated skin and including an inlet zone and an outlet zone longitudinally spaced apart from each other, the high-porosity zones of a given pair communicating through the first cellular-structure core and the intermediate skin with the two ends of a soundwave flow channel arranged in the second cellular-structure core.