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. 30, 2011
Filed:
Dec. 12, 2007
Ching-bai Hwang, Taipei Hsien, TW;
Ran Lin, Shenzhen, CN;
Ching-Bai Hwang, Taipei Hsien, TW;
Ran Lin, Shenzhen, CN;
Fu Zhun Precision Industry (Shen Zhen) Co., Ltd., Shenzhen, Guangdong Province, CN;
Foxconn Technology Co., Ltd., Tu-Cheng, New Taipei, TW;
Abstract
A cooling fan () includes a housing () and an impeller (). The housing has a base (), a sidewall () extending from a periphery of the base with an air outlet () defined therein, and a cap () covering the sidewall. The impeller has a plurality of blades () rotatably received in the housing for generating an airflow. An air channel () is formed between tip portions of the blades and an inner face of the sidewall. The air outlet has a near section (A) and a far section (C). The airflow first reaches the near section and then the far section. The base of the housing has a protrusion () extending into the air outlet for guiding the airflow flowing towards the far section from the near section of the air outlet.