US5506198A
Expired / Lapsed
US
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High-temperature superconductive conductor winding
Assignee: Novo Nordisk AS
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Filing: 1994-09-06
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Granted: 1996-04-09
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Expires: 2014-09-06
Abstract
Abstract In a high-temperature superconductive conductor winding (1) comprising a tape-shaped high-temperature superconducting wire (2) which is combined with a metal 5 and wound into the form of a double pancake coil, the length of a throughout portion (5) provided between pancakes (4, 6) is at least four times the width of the tape-shaped high-temperature superconducting wire. Thus, it is possible to suppress generation of shearing stress at 10 the throughout portion (5), thereby preventing reduction of the critical current density caused by such shearing stress.
Inventors
- 👤 Kenichi Sato
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 21:39
CPC Classifications
H; H01; H01F; H01F6/00; H01F6/06; Y; Y10; Y10S; Y10S505/00; Y10S505/70; Y10S505/704
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
148 words
A high-temperature superconductive conductor winding comprising a tape-shaped high-temperature superconducting wire that comprises silver-sheathed bismuth cuprate oxide superconductor, said wire being covered with a metal sheath and wound into the form of a double pancake coil having first and second pancakes and a throughout portion provided between said first and second pancakes, wherein Θ is selected to be at most 30° and d is selected to be at least 0.1 mm and at most W, and winding diameter of each pancake is selected to be at least 10 mm, when the length (L) of said throughout portion is defined as L=(W+D)/sinΘ, where W represents width of the metal sheath, d represents distance between first and second pancakes, and Θ represents an angle formed by the center line at a central portion in longitudinal direction of the throughout portion and the center line of the wire in each pancake.
Claim 2
Dependent Claim
148 words
A high-temperature superconductive conductor winding comprising a tape-shaped high-temperature superconducting wire that comprises silver-sheathed bismuth cuprate oxide superconductor, said wire being covered with a metal sheath and wound into the form of a double pancake coil having first and second pancakes and a throughout portion provided between said first and second pancakes, wherein Θ is selected to be at most 30° and d is selected to be at least 0.1 mm and at most W, and winding diameter of each pancake is selected to be at least 10 mm, when the length (L) of said throughout portion is defined as L=(W+D)/sinΘ, where W represents width of the metal sheath, d represents distance between first and second pancakes, and Θ represents an angle formed by the center line at a central portion in longitudinal direction of the throughout portion and the center line of the wire in each pancake.
Claim 3
Dependent Claim
20 words
The high-temperature superconductive conductor winding of claim 1 wound about a bobbin having a diameter of at least 10 mm.
Claim 4
Dependent Claim
11 words
The high-temperature superconductive conductor winding of claim 1, wherein L≧4 W.
Claim 5
Dependent Claim
23 words
The high-temperature superconductive conductor winding of claim 3, wherein W is approximately 4 mm and wherein L ranges from 15 to 30 mm.
Claim 6
Dependent Claim
29 words
The high-temperature superconductive conductor winding of claim 1, wherein said wire is coated with a thermally insulating film selected from the group consisting of formal resin and polyimide resin.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1999-04-09 | 1999-10-09 | 2000-04-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2003-04-09 | 2003-10-09 | 2004-04-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2007-04-09 | 2007-10-09 | 2008-04-09 | $7700.00 | Window Closed / Lapsed |