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:
Feb. 06, 2007
Filed:
Oct. 06, 2003
Jui-cheng Chang, Taichung, TW;
Jui-Cheng Chang, Taichung, TW;
Merry Electronics, Co., Ltd., Taichung, TW;
Abstract
A receiver includes a rear yoke inside a housing, a first acoustic paper bonded to an annular base of the rear yoke to block a rear open side of a tubular body of the rear yoke, an annular magnet supported on the annular base around the tubular body, a front yoke disposed at a front side of the magnet, a vibration diaphragm stretched in front of the yokes, a voice coil suspended in an annular space between the yokes, a tubular cushion fitted into the tubular body of the rear yoke, and an annular cushion (or annular step) set between the magnet and the tubular body, and a second acoustic paper covering an air hole at a rear side of the housing.