US2003017048A1PendingUtilityA1

Structure of a fan

35
Priority: Jul 17, 2001Filed: Jul 17, 2001Published: Jan 23, 2003
Est. expiryJul 17, 2021(expired)· nominal 20-yr term from priority
Inventors:Pao-Lung Lin
F04D 29/30F04D 29/281
35
PatentIndex Score
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Claims

Abstract

The present invention relates to an improved structure of a fan, which is a centrifugal fan composed of a round housing and a blade set, where each blade is spaced in equidistance and spliced in a round housing. Each blade forms a triangular conical face on one side and a flat face on the other face. While a fan is running, a blade so designed functions to guide air flow and reduce turbulence to the minimum.

Claims

exact text as granted — not AI-modified
What is claimed is:  
     
         1 . An improved structure of a fan, comprising 
 a round housing; and    a blade set having a plurality of blades, each of the blades is equidistantly spaced and spliced in a round housing, the blades respectively formed with a triangular conical face on one side and a flat face on the other side.    
     
     
         2 . The improved structure of a fan of  claim 1 , wherein each of the blades is bent in curve.  
     
     
         3 . The improved structure of a fan of  claim 1 , wherein each of the blades having a terminal end formed a bevel face.

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