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:
Oct. 13, 2026
Filed:
Oct. 23, 2024
Laird Technologies (Shenzhen) Ltd., Shenzhen, CN;
Shangyu Chen, Shenzhen, CN;
Xu Han, Shenzhen, CN;
Qingsheng Gao, Shenzhen, CN;
Yifan Xu, Shenzhen, CN;
Xiaohu Xu, Shenzhen, CN;
Donglai Xu, Shenzhen, CN;
Guiyun Chen, Shenzhen, CN;
Youhong Li, Shenzhen, CN;
Laird Technologies (Shenzhen) Ltd., Shenzhen, CN;
Abstract
A silencer or muffler for reducing noise of a heat dissipation or cooling fan includes an outer tube and at least one inner tube inside the outer tube. An annular space is formed between the inner and outer tubes. An inner cavity of the inner tube forms a ventilation channel. Partition plates are installed in the annular space that partition the annular space into silencing chambers arranged along a conveying direction of airflow. The inner tube includes openings communicating the silencing chambers with the ventilation channel. The silencing chambers are disposed correspondingly to silencing frequency bands. A limited installation space in an electronic device chassis can be used to achieve sound absorption and noise reduction for a heat dissipation fan in the silencing frequency bands.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile