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. 17, 2004
Filed:
Jan. 24, 2003
Wei-Chung Wu, Taipei, TW;
Meiloon Industrial Co., Ltd., Taipei, TW;
Abstract
A loudspeaker having a cone made of magnesium-lithium alloy, comprising of a frame structure, having an expanded opening disposed at the front end and a magnetic element disposed at the rear end; a voice coil, disposed in the middle of the magnetic element; an damper, adhering to the voice coil; a cone, disposed on the inner diameter of the expanded opening of the frame structure and adhering to the voice coil; characterized in that the cone of the loudspeaker is formed by stamping the magnesium-lithium alloy under normal temperature, and the characteristics of the magnesium-lithium alloy material and the stamping process to produce the cone of the loudspeaker, which gives a better and planer sound pressure curve, a wider effective bandwidth, and a more beautiful metal color than the cone of the prior art loudspeaker within the audible frequency range.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile