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:
Jan. 12, 2016
Filed:
May. 09, 2014
Applicant:
Kaiyan Gao, Shenzhen, CN;
Inventor:
Kaiyan Gao, Shenzhen, CN;
Assignee:
AAC Acoustic Technologies (Shenzhen) Co., Ltd., Shenzhen, CN;
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
H04R 1/02 (2006.01); H04M 1/03 (2006.01);
U.S. Cl.
CPC ...
H04R 1/028 (2013.01); H04M 1/035 (2013.01); H04R 2400/01 (2013.01); H04R 2499/11 (2013.01);
Abstract
An electromagnetic transducer is disclosed. The transducer includes a bracket, a magnetic circuit part receiving in the bracket and having a weight, a voice generating part actuated by the magnetic circuit part for generating sound, the magnetic circuit part sandwiched by two spring-plates for vibrating along a direction. The weight further includes a plurality of supporting protrusions for anchoring the two spring-plates, respectively. Each of the two spring-plates has a ring plane lamina and two helical wound springs extending inwardly from the ring plane lamina.