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. 22, 2015
Filed:
Sep. 13, 2011
Stéphane Enoch, Marseilles, FR;
Mohamed Farhat, Marseilles, FR;
Sébastien Guenneau, Marseilles, FR;
Alexander Movchan, Liverpool, GB;
Stéphane Enoch, Marseilles, FR;
Mohamed Farhat, Marseilles, FR;
Sébastien Guenneau, Marseilles, FR;
Alexander Movchan, Liverpool, GB;
Centre National de la Recherche Scientifique, Paris, FR;
Université Paul Cézanne Aix-Marseille III, Aix en Provence Cedex, FR;
University of Liverpool, Liverpool, GB;
Abstract
A structure for bending transversal elastic waves around a zone to isolate of a plate, has an anisotropic Young's modulus and/or a heterogeneous mass density. The wavelengths of the elastic waves to bend are large with respect to the thickness of the plate and small with respect to the other dimensions of the plate. The structure is made by defining a meshing of a peripheral zone surrounding the zone to isolate; dividing the peripheral zone into several elementary rings and several elementary angular sectors; and forming, in each mesh delimited by an elementary angular sector and an elementary ring, a structural element in a material having a Young's modulus and/or a mass density different than those of the material forming the plate, the dimensions of the meshes and of the structural elements in the plane of the plate being less than half the wavelengths of the elastic waves to bend.