Electricity: conductors and insulators – Conduits – cables or conductors – Superconductors
Reexamination Certificate
2005-07-12
2005-07-12
Gibson, Randy (Department: 2841)
Electricity: conductors and insulators
Conduits, cables or conductors
Superconductors
C029S599000, C505S230000
Reexamination Certificate
active
06916991
ABSTRACT:
A composite superconducting tape including a multiplicity of constituent superconducting tapes stacked parallel to one another with major faces in contact, and at least some of constituent tapes have widths not greater than half the width of the composite superconductor and are laid edge to edge with each other. All constituent superconducting tapes may have a width that is substantially half, or another simple fraction, of the width of the composite tape so that they form two or more substacks with aligned zones between them which contain no superconducting material. A full-width tape of silver or silver alloy to bridge from tape to tape provides sufficiently strong mechanical connection between substacks. The composite superconducting tape has substantially improved critical current compared with a stack of the same overall dimensions and composition with all full-width superconducting tapes, due to magnetic de-coupling between the substacks.
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Abstract of Japanese Patent Publication No. 09259660; Oct. 3, 1997.
Darmann Francis Anthony
Zhao Rupeng
Fay Kaplun & Marcin LLP
Gibson Randy
Metal Manufacturing Limited
Patel Ishwar ( I.B.)
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