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.:

US 9986340 B1

PDF
Full Text
Expired
Date of Patent:
May. 29, 2018

Filed:

Dec. 19, 2016
Applicant:

Huanbin Liao, Shenzhen, CN;

Inventor:

Huanbin Liao, Shenzhen, CN;

Assignee:
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
H04R 1/00 (2006.01); H04R 9/02 (2006.01); H04R 9/06 (2006.01); H04R 7/12 (2006.01);
U.S. Cl.
CPC ...
H04R 9/025 (2013.01); H04R 7/127 (2013.01); H04R 9/06 (2013.01); H04R 2209/022 (2013.01); H04R 2499/11 (2013.01);
Abstract

A loudspeaker is disclosed. The loudspeaker includes a magnetic circuit system including a first magnetic part, a second magnetic part surrounding the first magnetic part, and a magnetic gap formed by the first and second magnetic parts. At least one of the first and second magnetic parts is a magnet. The first magnetic part includes a body and an avoiding part formed surrounding an edge of the body.


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