Reversible fan blade for a ceiling-suspended fan

Abstract

An improved ceiling fan blade for use on a ceiling fan having a reversible motor and a plurality of said fan blades is provided in which each ceiling fan blade is in the shape of a trapezoid and the bottom part of the fan blade is wider than the tip of said fan blade. Each of the fan blades has two side edges that are connected to a central region of the fan blade, one of the side edges folds upwardly from the central region and the other side edge folds downwardly from the central region wherein each of the edges folds in opposite directions from the central region.

1 . A ceiling fan blade for use on a ceiling fan having a reversible motor and a plurality of said fan blades wherein the improvement comprises:
 a. Said fan blade is in the shape of a trapezoid and in which the bottom part of said fan blade is wider than the tip of said fan blade;   b. Said fan blade has two side edges connected to a central region of said fan blade, one of said side edges folds upwardly from the central region and the other side edge folds downwardly from the central region wherein each of said edges folds in opposite directions from the central region.   
   
   
       2 . The ceiling fan blade claimed in  claim 1  wherein the plurality of said blades are mounted on a base connected to a shaft that is connected to the reversible motor of the ceiling fan. 
   
   
       3 . The ceiling fan blade according to  claim 1  wherein the angle between each of said edges and the central region is in the range of approximately 1 to 30 degrees. 
   
   
       4 . The ceiling fan blade claimed in  claim 1  wherein said blade includes a bracket mounted on said bottom part and said bracket is mounted on a base connected to a shaft that is connected to the reversible motor of the ceiling fan. 
   
   
       5 . The ceiling fan blade according to  claim 1  wherein the fan blade is constructed from materials selected from the group consisting of polymer and wood. 
   
   
       6 . The ceiling fan blade according to  claim 1  wherein said fan blade is constructed of metal. 
   
   
       7 . The ceiling fan blade according to  claim 5  wherein said blades are at least 3/16 inches in thickness.