Foam-filled, tubular steel member useful in pole, pylon, or tower

Abstract

A tubular member, which is made of steel and which is useful as an upright, structural member in a pole, pylon, or tower, is filled at least partially with a foamed material protecting said member against internal corrosion and against pest infiltration. The tubular member comprises plural sections, which have end flanges and which are bolted together at the flanges, and comprises gaskets to prevent the foamed material from being extruded between the flanges.

1 . A tubular, steel member, which is useful as an upright, structural member in a pole, pylon, or tower, wherein the member is filled at least partially with a foamed material protecting said member against internal corrosion and against pest infiltration.  
     
     
         2 . The tubular, steel member of  claim 1  comprising tubular sections, which have end flanges and which are bolted together at the flanges.  
     
     
         3 . The tubular, steel member of  claim 2  comprising means to prevent the foamed material from being extruded between the flanges.  
     
     
         4 . The tubular, steel member of  claim 2  comprising gaskets to prevent the foamed material from being extruded between the flanges.  
     
     
         5 . A tower comprising upright, structural members, each being a tubular, steel member according to  claim 1 .  
     
     
         6 . A tower comprising upright, structural members, each being a tubular, steel member according to  claim 2 .  
     
     
         7 . A tower comprising upright, structural members, each being a tubular, steel member according to  claim 3 .  
     
     
         8 . A tower comprising upright, structural members, each being a tubular, steel member according to  claim 4.