Patent ID: 7238400
Filing Date: 2007-07-03
Classification: F16L,Y10T

Abstract:
1. A pipe for transporting hydrocarbon in pressurized fluid form, wherein the pipe is comprised of a plurality of unbonded layers and the layers are partly metallic or are comprised of composites and are partly polymeric; the pipe having at least one layer of the plurality of unbonded layers comprising a textile tape having a substantially flat cross section that is formed in the pipe as a helical winding, wherein the tape includes a central section having a first thickness and an approximately rectangular cross-section; and the tape further includes two separate and separated lateral longitudinal edge regions at respective opposite sides of the central section, each of the lateral longitudinal edge regions having a thickness that is less than the first thickness of the central section; wherein the central section and the two separate and separated lateral longitudinal edge regions have the same textile structure and wherein the tape is wound in a helical winding with at least partial overlapping of the lateral longitudinal edge regions of successive ones of the windings.