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:
Aug. 29, 2017
Filed:
Jul. 06, 2016
Applicant:
Bose Corporation, Framingham, MA (US);
Inventors:
Assignee:
Bose Corporation, Framingham, MA (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
H04R 1/30 (2006.01); H04R 1/28 (2006.01); H04R 1/22 (2006.01);
U.S. Cl.
CPC ...
H04R 1/288 (2013.01);
Abstract
A waveguide for conducting sound that is generated by a loudspeaker that is acoustically coupled to the waveguide. There is a duct with an external wall, an interior opening circumscribed by the wall, and an outlet, and an air-adsorbent structure coupled to an inside of the external wall of the duct such that the air adsorbent structure lines at least a portion of the wall. The apparent volume ratio of the air adsorbent structure is at least about 1.5.