Patent ID: 6403179
Filing Date: 2002-06-11
Classification: B29C,Y10T

Abstract:
A polygonal composite structure formed on a mandrel having a longitudinal axis, said structure comprising:two structural layers around the mandrel including an inner structural layer and an outer structural layer; a plurality of corner pieces equal to the number of sides of the mandrel; wherein each of said plurality of corner pieces is located at each corner of said polygonal composite structure, where each corner is defined by the intersection of adjacent sides; wherein each of said plurality of corner pieces is oriented lengthwise along said polygonal composite structure along the length thereof; wherein each of said inner structural layer and said outer structural layer is formed by winding a fibre reinforcement material about the mandrel oriented at a winding angle relative to the longitudinal axis, said fibre reinforcement material having a resin applied thereon; and wherein each of said plurality of corner pieces is placed at each corner of said composite structure between said inner structural layer and said outer structural layer.