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:
Sep. 02, 2014
Filed:
Feb. 23, 2011
Laurent Bianchi, Marseilles, FR;
Rémy Cuenca, Lancon de Provence, FR;
Mathieu Galan, Lyons, FR;
Damien Reveillon, Avoine, FR;
Laurent Bianchi, Marseilles, FR;
Rémy Cuenca, Lancon de Provence, FR;
Mathieu Galan, Lyons, FR;
Damien Reveillon, Avoine, FR;
Airbus Helicopters, Marignane Cedex, FR;
Abstract
A rotor blade () with adaptive twisting, the blade being provided with an outer covering () extending along a pitch variation axis (AY) from a first end zone () to a second end zone (), the outer covering () defining an internal cavity (). The blade includes a strip () extending inside said cavity () along said pitch variation axis (AY), said strip () comprising a composite material that is anisotropic so as to be suitable for twisting under the effect of centrifugal forces (F) directed parallel to said pitch variation axis (AY) when the blade () is in rotation, said strip () being fastened to said outer covering () via first and second fastener means () in order to be capable of twisting said outer covering ().