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.

Date of Patent:
Sep. 27, 2005

Filed:

Apr. 17, 2003
Applicants:

Shun-chen Chang, Ying Ko Town, TW;

Kuo-cheng Lin, Tao Yuan, TW;

Wen-shi Huang, Jung Li, TW;

Po-hao Yu, Taoyuan Hsien, TW;

Inventors:

Shun-Chen Chang, Ying Ko Town, TW;

Kuo-Cheng Lin, Tao Yuan, TW;

Wen-Shi Huang, Jung Li, TW;

Po-Hao Yu, Taoyuan Hsien, TW;

Assignee:

Delta Electronics, Inc., Taoyuan Hsien, TW;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F04D029/38 ;
U.S. Cl.
CPC ...
Abstract

A heat dissipation device and a blade structure thereof are employed to increase input air volume, A new impeller, mounted on the driving means, includes a hub and a plurality of rotor blades arranged around the hub. Preferably, the inner side of each rotor blades extends to a top surface and side surface of the hub. An upper edge of the rotor blades can extend axially beyond the top surface of the hub in the air inlet end for increasing the intake airflow by introducing the side airflow through the space defined between the inner edges of the plurality of rotor blades and the top surface of the hub.


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