US2005002790A1PendingUtilityA1

Blade structure for ceiling fans

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Priority: Jul 1, 2003Filed: Jul 22, 2003Published: Jan 6, 2005
Est. expiryJul 1, 2023(expired)· nominal 20-yr term from priority
Inventors:Fan-Yee Lin
F04D 25/088F24F 2221/14F04D 29/388F24F 7/007
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PatentIndex Score
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Claims

Abstract

A ceiling fan blade includes a top plate having solid patterns defined in a top surface thereof and a plurality of ridges defined in a bottom surface of the top plate, and a bottom plate which is adhered to the bottom surface of the top plate at a periphery of the top plate and the ridges.

Claims

exact text as granted — not AI-modified
1 . A ceiling fan blade comprising: 
 a top plate having solid patterns defined in a top surface thereof and a plurality of ridges defined in a bottom surface of the top plate, and    a bottom plate having a top surface which is adhered to the bottom surface of the top plate at a periphery of the top plate and the ridges.    
   
   
       2 . The ceiling fan blade as claimed in  claim 1 , wherein a plurality of spaces are defined between the bottom surface of the top plate and the bottom plate.  
   
   
       3 . The ceiling fan blade as claimed in  claim 1 , wherein a reinforcement ridge protrudes from a central axis of the top surface of the top plate.

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