US Patent 9291289 Composite hose and method for fabricating such a hose

A composite hose for transfer of cryogenic fluids, includes two end flanges, a helical wound inner wire several layers of protective fabric layers, at least one gas-tight sealing layer sandwiched between one or more protective layers and an outer helical wound wire which is placed on top of the protective layers between the pitch of the inner wire, characterized in that the inner wire is connected to a flexible inner liner that follow any axial and/or radial displacement of the inner wire and that covers the inner corrugations of the composite hose so to create a smooth inner bore of the composite hose.