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.

Date of Patent:
Feb. 25, 2020

Filed:

Jul. 01, 2019
Applicant:

Harman International Industries, Incorporated, Stamford, CT (US);

Inventors:

Jacques Spillmann, Los Angeles, CA (US);

Steven Patrick Riemersma, Woodland Hills, CA (US);

Mark Thomas DeLay, St. Paul, MN (US);

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04R 1/32 (2006.01); H04R 1/34 (2006.01); H04R 1/40 (2006.01);
U.S. Cl.
CPC ...
H04R 1/323 (2013.01); H04R 1/345 (2013.01); H04R 1/403 (2013.01); H04R 2201/401 (2013.01);
Abstract

Examples are disclosed for a waveguide for a loudspeaker, the waveguide including a first and second outer shell coupled to one another, and a first and second inner shell coupled to one another and positioned within an air gap between the first and second outer shells, a plurality of sound paths being formed between an exterior surface of the first inner shell and an interior surface of the first outer shell and between an exterior surface of the second inner shell and an interior surface of the second outer shell, each of the plurality of sound paths having an equal path length in a plurality of planes.


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