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. 20, 2003
Filed:
Jul. 23, 2001
Applicant:
Inventors:
Phillip James Bradbury, Poway, CA (US);
Phep Xuan Nguyen, Lahabda, CA (US);
Chalmers R. Jenkins, Scottsdale, AZ (US);
Scott H. Frankel, Tempe, AZ (US);
Assignee:
Other;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F04B 1/700 ; F04B 2/500 ; F04B 3/500 ; H05K 7/20 ;
U.S. Cl.
CPC ...
F04B 1/700 ; F04B 2/500 ; F04B 3/500 ; H05K 7/20 ;
Abstract
A counter-rotating axial flow fan for cooling electronic components comprising two or more impellers with narrow chord blades. At least one impeller rotates in a first direction and at least one impeller rotates in a second direction opposite to the first direction. The blades of the impellers are configured so as to cause air to flow in the same axial direction. The air flow generated by this counter-rotating fan is substantially greater than the air flow of an otherwise identical co-rotating fan.