Patent ID: 6705351
Filing Date: 2004-03-16
Classification: B29C,B29L,F16L

Abstract:
A flexible pipe, comprising:a tubular member defining a longitudinal passage adapted to contain a fluid; a first layer of flexible material helically wrapped around the outer surface of the tubular member in a manner to form gaps between adjacent wrapped sections of the layer; a second layer of flexible material wrapped around the first layer and in the same direction as the direction of wrapping of the first layer, with the wrapped sections of the second layer overlapping the gaps of the first layer; a third layer of flexible material wrapped around the second layer in a direction opposite to the direction of wrapping of the second layer, wherein the third layer is wrapped in a manner to form gaps between adjacent wrapped sections; and a fourth layer of flexible material wrapped around the third layer and in the same direction as the direction of wrapping of the third layer, with the wrapped sections of the fourth layer overlapping the gaps of the third layer.