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:
Dec. 18, 2007
Filed:
Mar. 19, 2003
Applicants:
Bernard Sapoval, Paris, FR;
Marcel Filoche, Paris, FR;
Michel Chappat, Maurepas, FR;
Didier Peyrard, Mornant, FR;
Inventors:
Bernard Sapoval, Paris, FR;
Marcel Filoche, Paris, FR;
Michel Chappat, Maurepas, FR;
Didier Peyrard, Mornant, FR;
Assignees:
Ecole Polytechnique, Palaiseau, FR;
Colas, Boulogne-Billancourt, FR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G10K 11/16 (2006.01); E04B 1/82 (2006.01); E04B 1/84 (2006.01); E04H 17/14 (2006.01);
U.S. Cl.
CPC ...
Abstract
A noise-absorbing device includes a substantially flat base and embossed and/or hollow elements each including at least one recess. This base reveals with the embossed and/or hollow elements, a configuration exhibiting a fractality zone of between 1 cm and 50 cm, of fractal dimension greater than 2.5 enabling the localization of the waves over the sound frequency range, in the vicinity of the elements.