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:
Aug. 25, 2015
Filed:
Dec. 10, 2012
Applicant:
Shenzhen China Star Optoelectronics Technology Co., Ltd, Shenzhen, CN;
Inventors:
Weibing Yang, Shenzhen, CN;
Chunhao Wu, Shenzhen, CN;
Kunhsien Lin, Shenzhen, CN;
Yongqiang Wang, Shenzhen, CN;
Zhiyou Shu, Shenzhen, CN;
Minghu Qi, Shenzhen, CN;
Zenghong Chen, Shenzhen, CN;
Zhenhua Guo, Shenzhen, CN;
Yunshao Jiang, Shenzhen, CN;
Assignee:
Other;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B01D 46/12 (2006.01); B01D 46/46 (2006.01); B01D 46/54 (2006.01); F24F 13/28 (2006.01); F24F 3/16 (2006.01); F04D 29/70 (2006.01);
U.S. Cl.
CPC ...
F24F 13/28 (2013.01); F04D 29/703 (2013.01); F24F 3/161 (2013.01); F24F 3/1603 (2013.01);
Abstract
A fan filter unit (FFU) includes a fan, and a filter screen coupled with an air inlet of the fan. An air inlet of the filter screen is further configured with an auxiliary filter screen, and a minimum diameter of dust particles filtrated by the auxiliary filter screen is greater than a minimum diameter of the dust particles filtrated by the filter screen.