Propeller/impeller blade apparatus

Abstract

A medium mover/reactionary surface can be used a propeller, impeller, wind generator blade, mixer and the like. The blade design has a shape that pulls against itself under load to maintain its intended shape. The blade design includes one or more generally flat or contoured strip-like sections. These strip-like sections can be attached at their centers to a hub and at the tips to create rake and pitch.

What is claimed is: 
     
         1 . A blade apparatus comprising:
 at least one blade strip;   blade tips of adjacent ones of the at least one blade strip connected together; and   a central region of each of the at least one blade strip connected to a shaft.   
     
     
         2 . The blade apparatus of  claim 1 , wherein the at least one blade strip includes two blade strips disposed alongside of each other, the blade tips of the two blade strips being connected together. 
     
     
         3 . The blade apparatus of  claim 1 , further comprising a hub interconnecting the central region of each of the at least one blade strip with the shaft. 
     
     
         4 . The blade apparatus of  claim 1 , wherein the shaft has a shaft axis generally perpendicular to an axis of the at least one blade strip. 
     
     
         5 . The blade apparatus of  claim 1 , wherein the shaft has a shaft axis generally parallel to an axis of the at least one blade strip. 
     
     
         6 . The blade apparatus of  claim 1 , wherein the at least one blade strip includes a first set of blade strips and at least one additional set of blade strips, the first set of blade strips woven with at least one additional set of blade strips. 
     
     
         7 . A blade apparatus comprising:
 at least a first and second blade strip;   blade tips of adjacent ones of the first and second blade strips connected together;   a central region of each of the first and second blade strips connected to a shaft; and   a hub interconnecting the central region of each of the first and second blade strips with the shaft.   
     
     
         8 . The blade apparatus of  claim 7 , wherein the shaft has a shaft axis generally perpendicular to an axis of the first and at least one additional blade strip. 
     
     
         9 . The blade apparatus of  claim 7 , wherein the shaft has a shaft axis generally parallel to an axis of the first and at least one additional blade strip. 
     
     
         10 . The blade apparatus of  claim 1 , wherein, two or more blade sets are woven together.