Flexible cryogenic conduit

US4492089A · kind A · utility

Assignee

• kabelmetal electro GmbH · DE

Inventors

• Peter Rohner · Lüneburg, DE
• Klausdieter Schippl · Hannover, DE
• Gunther Blumenberg · Hannover, DE
• Werner Meyer · Munich, DE
• Wolfgang Obert · Karlsruhe, DE

Key dates

• Filing date: Sep 12, 1983
• Grant date: Jan 8, 1985
• Expiry date: Sep 12, 2003

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y02E40/60
• WIPO field: Mechanical elements
• WIPO sector: Mechanical engineering

Abstract

The interior of a tube provided for low temperature operation is shielded from the exterior through a plurality of metal ribbons helically looping around the tube in an intertwined relationship and each carrying a welded on conduit for low temperature liquid whereby one of these conduits serves as a primary or outgoing conductor, and the two others serve as return paths; suitable spacers are provided to position the system in a concentric relation; inner and outermost tubes are preferably corrugated and the immediate interior of the outermost tube is filled with superinsulation.