Foster M Kimball

US Patent:

52486575, Sep 28, 1993

Filed:

May 13, 1991

Appl. No.:

7/699035

Inventors:

Richard E. Bailey - San Diego CA
Foster M. Kimball - San Diego CA
Eddie M. Leung - San Diego CA
Robert D. McConnell - Denver CO

Assignee:

General Dynamics Corporation, Space Systems Division - San Diego CA

International Classification:

H01L 3924
B05D 512

US Classification:

505 1

Abstract:

A superconducting conductor assembly using high temperature materials. A double-walled tubular structure has at least one helical strip of superconductive material on the inner wall of the inside tube. Brittle, non-ductile superconducting materials may be used. A coolant, typically liquid nitrogen, is circulated between the tubes to maintain the superconductor below the critical temperature of the superconductor. A buffer layer is preferably included between tube wall and superconductor. A plurality of alternating layers of buffer and superconductor may be used.