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.

Date of Patent:
Dec. 02, 2025

Filed:

Mar. 30, 2021
Applicant:

Safran, Paris, FR;

Inventors:

Hugues Laurent Alglave, Moissy-Cramayel, FR;

Patrick Dunleavy, Moissy-Cramayel, FR;

Nicolas Pierre Lanfant, Moissy-Cramayel, FR;

Cédric Pierre Michel Thomas, Moissy-Cramayel, FR;

Assignee:

SAFRAN, Paris, FR;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B29C 45/56 (2006.01); B29L 7/00 (2006.01); G10K 11/162 (2006.01);
U.S. Cl.
CPC ...
B29C 45/561 (2013.01); G10K 11/162 (2013.01); B29L 2007/002 (2013.01);
Abstract

A method for manufacturing an acoustic attenuation structure including a complex acoustic multi-element panel extending along a horizontal and a vertical direction and an acoustic skin covering one of horizontal faces of the complex acoustic multi-element panel, the complex acoustic multi-element panel including complex acoustic elements each having a shape gradually narrowing between a base and a tip and partitions surrounding each complex acoustic element to form a plurality of acoustic cells, the partitions extending along the vertical direction from the base of the complex acoustic elements, the complex acoustic multi-element panel being produced by injection of a filled or unfilled thermoplastic or thermosetting material. The complex acoustic multi-element panel and the plurality of partitions are produced as a single part by injection of a filled or unfilled thermoplastic or thermosetting material.


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