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:
May. 10, 2011
Filed:
Feb. 14, 2008
Valerie Frustie, Toulouse, FR;
Bernard Duprieu, Toulouse, FR;
Fabrice Gantie, Toulouse, FR;
Airbus Operations SAS, Toulouse, FR;
Abstract
A coating for acoustic treatment relative to an aircraft's surface, in particular a leading edge such as an air intake of an aircraft nacelle, includes an acoustically resistive layer, at least one alveolar structure (), and a reflective layer. The alveolar structure () includes a number of tubes that empty out, on the one hand, at a first imaginary surface (), and, on the other hand, at a second imaginary surface (). The alveolar structure () includes cut-outs or openings () made at the side walls of certain tubes that make it possible to link adjacent tubes so as to create a network of communicating tubes that isolate at least one tube or a group of non-communicating tubes, whereby at least one of the communicating tubes is connected to at least one hot gas intake ().