Patent US4883922A successfully refreshed from Google Patents.
US4883922A
Expired / Lapsed
US
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Composite superconductor and method of the production thereof
Assignee: Sumitomo Electric Industries Ltd
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Filing: 1988-05-13
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Granted: 1989-11-28
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Expires: 2008-05-13
Abstract
Abstract A composite superconducting wire using ceramic superconductor material in which one or more elongated superconductor material are accomodated in one or more grooves formed on an elongated reinforcing member so that a long size superconductor wire can be provided. Various methods of producing such composite superconductor wire are also disclosed.
Inventors
- 👤 Minoru Yokota
- 👤 Masayuki Nagata
- 👤 Shigeo Saito
- 👤 Yuichi Yamada
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 07:04
CPC Classifications
H; H10; H10N; H10N60/00; H10N60/20; H10N60/203; H10N60/01; H10N60/0268; H10N60/0801; Y; Y10; Y10S; Y10S505/00; Y10S505/70; Y10S505/704; Y10S505/825; Y10S505/884; Y10S505/885; Y10S505/886; Y10S505/887; Y10T; Y10T29/00; Y10T29/49; Y10T29/49002; Y10T29/49014
Claims Analysis
Total Claims: 24
Claim 1
Independent Claim
61 words
A composite superconducting wire which comprises an elongated reinforcing member, at least one groove defined on the surface portion of the reinforcing member so as to extend generally in a longitudinal direction, and ceramic superconductor material accommodated in and extending along said groove, the ceramic superconductor material having a width less than the width of the groove, the groove being open.
Claim 2
Dependent Claim
61 words
A composite superconducting wire which comprises an elongated reinforcing member, at least one groove defined on the surface portion of the reinforcing member so as to extend generally in a longitudinal direction, and ceramic superconductor material accommodated in and extending along said groove, the ceramic superconductor material having a width less than the width of the groove, the groove being open.
Claim 3
Dependent Claim
18 words
The composite superconducting wire according to claim 1, wherein said reinforcing member is formed in a spiral shape.
Claim 4
Dependent Claim
17 words
The composite superconducting wire according to claim 1, wherein said groove is formed in a spiral shape.
Claim 5
Dependent Claim
23 words
The composite superconducting wire according to claim 1, wherein a plurality of grooves are defined on the surface portion of the reinforcing member.
Claim 6
Dependent Claim
86 words
The composite superconducting wire according to claim 1, wherein the ceramic superconductor material is formed of a material defined by the following equation: Aa Bb Cc wherein A denotes at least one element selected from the IA group, IIA group, and IIIB group of th periodic table, B denotes at least one element selected from the IB group, IIB group and IIIA group of the periodic table, and C denotes at least one element selected from the group consisting of oxygen, fluorine, nitrogen, carbon and sulfur.
Claim 7
Dependent Claim
39 words
The composite superconducting wire according to claim 1, wherein the reinforcing member is made of a material which does not react during thermal processing of the ceramic superconductor material and has a thermal resistivity against the thermal processing temperature.
Claim 8
Dependent Claim
23 words
A composite superconductor wire according to claim 5, wherein the ceramic superconductor material is made of the elements Y, Ba, Cu and O.
Claim 9
Dependent Claim
16 words
The composite superconducting wire according to claim 1, wherein said superconductor material is covered by Al.
Claim 10
Dependent Claim
16 words
The composite superconductor wire according to claim 1, wherein said superconductor material is covered by Ag.
Claim 11
Dependent Claim
16 words
The composite superconducting wire according to claim 1, wherein said superconductor material is covered by Cu.
Claim 12
Dependent Claim
19 words
The composite superconducting wire according to claim 1, wherein said superconductor material is made of twisted ceramic superconductors filaments.
Claim 13
Dependent Claim
75 words
A composite superconducting wire which comprises an elongated reinforcing member, at least one open groove defined on the surface portion of the reinforcing member so as to extend generally in a longitudinal direction, a ceramic superconductor material accommodated in and extending along said groove, the ceramic superconductor material having a width less than that of the groove, and a stabilizing member contained in the reinforcing member, extending in the longitudinal direction of the reinforcing member.
Claim 14
Dependent Claim
75 words
A composite superconducting wire which comprises an elongated reinforcing member, at least one open groove defined on the surface portion of the reinforcing member so as to extend generally in a longitudinal direction, a ceramic superconductor material accommodated in and extending along said groove, the ceramic superconductor material having a width less than that of the groove, and a stabilizing member contained in the reinforcing member, extending in the longitudinal direction of the reinforcing member.
Claim 15
Dependent Claim
22 words
The composite superconducting wire according to claim 12, wherein said stabilizing member is provided at a central portion of the reinforcing member.
Claim 16
Dependent Claim
26 words
The composite superconducting wire according to claim 12, wherein said stabilizing member is made of Cu, Ag and/or Al and their alloy or their composite material.
Claim 17
Dependent Claim
23 words
The composite superconducting wire according to claim 12, wherein said stabilizing member is formed on the outer peripheral surface of the reinforcing member.
Claim 18
Dependent Claim
87 words
A composite superconducting wire which comprises an elongated reinforcing member, at least one open groove defined on the surface portion of the reinforcing member so as to extend generally in a longitudinal direction, a ceramic superconductor material accommodated in and extending along said groove, the ceramic superconductor material having a width less than that of the groove, and an outer enclosure for enclosing said reinforcing member with the ceramic superconductor wire so as to provide a path to allow flow of cooling medium around the reinforcing member.
Claim 19
Dependent Claim
87 words
A composite superconducting wire which comprises an elongated reinforcing member, at least one open groove defined on the surface portion of the reinforcing member so as to extend generally in a longitudinal direction, a ceramic superconductor material accommodated in and extending along said groove, the ceramic superconductor material having a width less than that of the groove, and an outer enclosure for enclosing said reinforcing member with the ceramic superconductor wire so as to provide a path to allow flow of cooling medium around the reinforcing member.
Claim 20
Dependent Claim
86 words
The composite superconducting wire according to claim 16, wherein the ceramic superconductor material is formed of a material defined by the following equation: Aa Bb Cc wherein A denotes at least one element selected from the IA group, IIA group, and IIIB group of the periodic table, B denotes at least one element selected from the IB group, IIB group and IIIA group of the periodic table, and C denotes at least one element selected from the group consisting of oxygen, fluorine, nitrogen, carbon and sulfur.
Claim 21
Dependent Claim
17 words
The composite superconducting wire according to claim 16, wherein said wire is formed in a spiral shape.
Claim 22
Dependent Claim
17 words
The composite superconducting wire according to claim 18, wherein said groove is formed in a spiral shape.
Claim 23
Dependent Claim
23 words
The composite superconducting wire according to claim 16, wherein a plurality of grooves are defined on the surface portion of the reinforcing member.
Claim 24
Dependent Claim
39 words
The composite superconducting wire according to claim 16, wherein said reinforcing member is made of a material which does not react during thermal processing of the ceramic superconductor material and has a thermal resistivity against the thermal processing temperature.
References Cited (Backward Citations)
US3372470A
Cited
US3639672A
Cited
US3760092A
Cited
US3730967A
Cited
US3763552A
Cited
US4101731A
Cited
US4377905A
Cited
WO1980002619A1
Cited
US4568900A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1992-11-27 | 1993-05-29 | 1993-11-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1996-11-27 | 1997-05-29 | 1997-11-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2000-11-27 | 2001-05-29 | 2001-11-28 | $7700.00 | Window Closed / Lapsed |