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:
May. 24, 2016
Filed:
Dec. 27, 2012
Huawei Technologies Co., Ltd., Shenzhen, CN;
Yanzhao Zhou, Shenzhen, CN;
Huawei Technologies Co., Ltd., Shenzhen, CN;
Abstract
A method for manufacturing a resonance tube includes: mixing powder materials, to form homogeneous powder particles, where the powder materials comprise iron powder with a weight proportion of 50% to 90%, at least one of copper powder and steel powder with a weight proportion of 1% to 30%, and an auxiliary material with a weight proportion of 1% to 20%; pressing and molding the powder particles, to form a resonance tube roughcast; sintering the resonance tube roughcast in a protective atmosphere, to form a resonance tube semi-finished product; and electroplating the resonance tube semi-finished product, to form the resonance tube. In the method, the resonance tube, and the filter according to embodiments of the present invention, the resonance tube is manufactured by using multiple powder materials.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile