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. 08, 2015
Filed:
Nov. 22, 2011
Guy Lemarquand, Beduer, FR;
Guy Lemarquand, Beduer, FR;
Other;
Abstract
The invention relates to an electro-acoustic to enclosure () comprising walls defining two cavities (), each provided with an aperture () shut off by a loudspeaker (), noteworthy in that it is said to be 'enclosed' and in that each cavity () has a shape for which the intersection with any plane containing the central axis (X-X'; X, X′) of said loudspeaker () is a portion of an ellipse (E; E), the major axes (X-X′; X-X′) of said ellipses (E; E) being substantially coincident with said central axis (X-X′; X, X′) of said loudspeaker (), said aperture () being secant to said ellipses (E; E) in such a way that the second extreme points (P′; P′) of each ellipse (E; E) are situated in said aperture ().