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:
Mar. 15, 2016
Filed:
Dec. 21, 2011
Applicant:
George Cardas, Bandon, OR (US);
Inventor:
George Cardas, Bandon, OR (US);
Assignee:
CARDAS AUDIO LTD., Bandon, OR (US);
Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04R 25/00 (2006.01); H04R 1/10 (2006.01); H04R 1/28 (2006.01); H04R 1/30 (2006.01);
U.S. Cl.
CPC ...
H04R 1/1016 (2013.01); H04R 1/2811 (2013.01); H04R 1/30 (2013.01);
Abstract
An earphone system comprising an ear canal portion with an interior surface having a logarithmic spiral taper shape, a base portion, and a speaker, wherein the ear canal portion and the base portion detachably engage to hold the speaker between and within the ear canal portion and the base portion. In some embodiments, the logarithmic spiral taper shape may further be a golden spiral taper shape, a Fibonacci spiral taper shape, or a cochleal taper shape.