Flexible conduit

US6840284B2 · kind B2 · utility

Assignee

• NEXANS · FR

Inventors

• Klaus Schippl · Hannover, DE
• Stephan Lange · St. Leon-Rot, DE

Key dates

• Filing date: Mar 10, 2004
• Grant date: Jan 11, 2005
• Expiry date: Mar 10, 2024

Classification

• Technology area (CPC F): Mechanical Engineering; Lighting; Heating
• CPC primary: F16L59/125
• WIPO field: Mechanical elements
• WIPO sector: Mechanical engineering

Abstract

A flexible conduit for conveying cryogenic fluids has a metal inner tube and a metal outer tube. A strip-shaped spacer member is made of a material of low thermal conductivity, which is spirally wound on the inner tube such that it contacts both the inner and outer tubes. The strip-shaped spacer member is twisted about its own axis and includes a metal that is stable with respect to high-energy radiation and has a thermal conductivity of less than 25 W/m.K and a tensile strength of more than 240 MPa.