Composition fiber glass utility pole

Abstract

A fiber glass utility pole comprising: (a) a center section that comprises from 5% to 15% of the total diameter of the utility pole; (b) a mid-section surrounding the center section, the mid-section comprising from 70% to 90% of the total diameter of the utility pole; and (c) an outer section surrounding the mid-section, the outer section comprising from 5% to 15% of the total diameter of the utility pole, wherein the outer section surrounding the mid-section, wherein the center section comprises fiber glass oriented at both +/−45 and 90 degree angles to a center axis, and wherein the mid-section comprises fiber glass oriented parallel to the center axis, and wherein the outer section comprises fiber glass oriented at both +/−45 and 90 degree angles to a center axis.

What is claimed is: 
     
         1 . A hollow fiber glass utility pole comprising:
 (a) a center section;   (b) a mid-section surrounding the center section; and   (c) an outer section surrounding the mid-section, wherein the center section comprises fiber glass oriented at both +/−45 and 90 degree angles to a center axis, and wherein the mid-section comprises fiber glass oriented parallel to the center axis, and wherein the outer section comprises fiber glass oriented at both +/−45 and 90 degree angles to a center axis.   
     
     
         2 . The utility pole of  claim 1 , wherein the center section comprises from 5% to 15% of the total diameter of the utility pole, and wherein the mid-section comprises from 70% to 90% of the total diameter of the utility pole, and wherein the outer section comprises from 5% to 15% of the total diameter of the utility pole. 
     
     
         3 . The utility pole of  claim 1 , wherein the center section comprises about 10% of the total diameter of the utility pole, and wherein the mid-section comprises about 80% of the total diameter of the utility pole, and wherein the outer section comprises about 10% of the total diameter of the utility pole. 
     
     
         4 . The utility pole of  claim 1  wherein each of the center, mid-, and outer sections are of continuous lengths that are pulled through the continuous pulling mechanism, the continuous pulling mechanism being a heated steel forming die. 
     
     
         5 . The utility pole of  claim 4 , wherein each of the center, mid-, and outer sections comprise roving, mat, or fabrics. 
     
     
         6 . The utility pole of  claim 4 , further comprising a pultrusion resin impregnated in the center, mid-, and outer sections, the pultrusion resin including bisphenol-a epichlorohydrin-based vinyl ester or a thermoset resin. 
     
     
         7 . The utility pole of  claim 4 , further comprising a pultrusion resin impregnated in the center, mid-, and outer sections, the pultrusion resin including isophthalic, orthophthalic, propylene-maleate, fire resistant, or high cross-link density resin-based esters. 
     
     
         8 . The utility pole of  claim 1 , wherein the utility pole is not used with a wooden utility pole. 
     
     
         9 . A hollow fiber glass utility pole comprising:
 (a) a center section;   (b) a mid-section surrounding the center section; and   (c) an outer section surrounding the mid-section, wherein the center section comprises fiber glass oriented at both +/−45 and 90 degree angles to a center axis, and wherein the mid-section comprises fiber glass oriented parallel to the center axis, and wherein the outer section comprises fiber glass oriented at both +/−45 and 90 degree angles to a center axis, wherein the center, mid- and outer sections of the hollow pultruded fiber glass utility pole are pulled through a continuous pulling device.   
     
     
         10 . A hollow fiber glass utility pole comprising:
 (a) a pultruded center section;   (b) a pultruded mid-section surrounding the center section; and   (c) a pultruded outer section surrounding the mid-section, wherein the center section comprises fiber glass oriented at both +/−45 and 90 degree angles to a center axis, and wherein the mid-section comprises fiber glass oriented parallel to the center axis, and wherein the outer section comprises fiber glass oriented at both +/−45 and 90 degree angles to a center axis.