Patent ID: 6453635
Filing Date: 2002-09-24
Classification: B29C,E04C,E04H,Y10T

Abstract:
A pole comprising:an elongate composite beam having an inner periphery and an outer periphery, the outer periphery having N substantially flat sides defining a polygonal shape with a corner between each pair of adjacent sides, the inner periphery also having N substantially flat sides, each being substantially parallel to the N substantially flat sides defining the outer periphery, adjacent pairs of the N substantially flat sides of the inner periphery being joined adjacent the corners of the beam by circular arc segments substantially tangent to the adjacent pairs of flat sides, the corners of the beam including rovings of high strength filaments pre-stressed in tension, the beam further including matting or fabric of high strength filaments extending around the beam, the high strength filaments of the rovings and matting or fabric being impregnated in resin.