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. 22, 2012
Filed:
Nov. 13, 2007
Gilles Chene, Toulouse, FR;
Fabrice Gantie, Toulouse, FR;
Alain Porte, Colomiers, FR;
Airbus Operations SAS, Toulouse, FR;
Abstract
The invention relates to acoustic lining for an aircraft, which can cover a leading edge, such as an air inlet in the nacelle of a propulsion unit, said lining comprising: (i) from the inside outwards, a reflective layer (), at least one cellular structure () and an acoustically resistive structure () having a pre-determined proportion of open surface; and (ii) at least one frost treatment system in the form of at least one heating layer () comprising open zones through which acoustic waves can pass, which co-operate at least partially with the open zones in the acoustically resistive structure. The invention is characterized in that the acoustically resistive structure () includes at least one structural layer () with openings () and in that said at least one heating layer () is disposed under the structural layer ().