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:
Sep. 09, 2025
Filed:
May. 31, 2023
Aac Microtech (Changzhou) Co., Ltd., Jiangsu, CN;
Qibo Li, Changzhou, CN;
Siyuan Ni, Changzhou, CN;
Jingwei Yu, Changzhou, CN;
Zhongfeng Gao, Changzhou, CN;
AAC Microtech (Changzhou) Co., Ltd., Changzhou, CN;
Abstract
A sounder includes a frame with an accommodating space, a magnetic circuit unit fixed in the accommodating space of the frame, a vibration unit fixed to the frame and spaced apart from the magnetic circuit unit and driven by the magnetic circuit unit to vibrate, and a front cover structure covering the frame and the vibration unit and made of sheet metal. The front cover structure includes a middle protrusion portion, an extension plate extending outward from an edge of the protrusion portion, and an assembly ring provided at an outer edge of the extension plate. The protrusion portion, the extension plate, the assembly ring and the vibration unit define a front cavity. The front cover structure made of the sheet metal with a limited thickness can satisfy requirements of the sounder on the structural strength, assembly stability and internal space, and improves sound production performance of the sounder.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile