US5045526A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Making insulated superconductor wire
Assignee: HP Inc
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Filing: 1987-05-29
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Granted: 1991-09-03
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Expires: 2007-05-29
Abstract
Abstract A method for producing insulated superconductor wire including the steps of a tubular glass preform, filling it with a superconductor material, suspending the preform within an oven to heat a section of the preform to approximately its softening point, and drawing the softened preform into a superconductor wire. A plastic coating can be applied to the wire to increase its durability. The completed wire preferably includes a superconductor core having its superconductor phase aligned with the longitudinal axis of the wire, a glass coating over the superconductor core, and a plastic coating over the glass coating.
Inventors
- 👤 V. K. Nagesh
- 👤 Daniel J. Miller
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 07:16
CPC Classifications
C; C01; C01G; C01G3/00; C01G3/006; C04; C04B; C04B35/00; C04B35/01; C04B35/45; H; H10; H10N; H10N60/00; H10N60/01; H10N60/0268; H10N60/0801; Y; Y10; Y10S; Y10S505/00; Y10S505/70; Y10S505/704; Y10S505/725; Y10S505/739; Y10S505/74; Y10S505/742
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
76 words
A method for making insulated superconductor wire comprising the steps of: preparing an oxide based superconductor wire-forming powder; at least partially filing a hollow glass preform with said powder; drawing a glass insulated superconductor wire structure from said preform and said powder to produce a superconductor core surrounded by a glass sheath; and annealing said glass insulated wire structure in an oxygen-bearing atmosphere to cause oxygen to permeate said glass sheath and enter said superconductor core.
Claim 2
Independent Claim
76 words
A method for making insulated superconductor wire comprising the steps of: preparing an oxide based superconductor wire-forming powder; at least partially filing a hollow glass preform with said powder; drawing a glass insulated superconductor wire structure from said preform and said powder to produce a superconductor core surrounded by a glass sheath; and annealing said glass insulated wire structure in an oxygen-bearing atmosphere to cause oxygen to permeate said glass sheath and enter said superconductor core.
Claim 3
Dependent Claim
19 words
A method for making insulated superconductor wire as recited in claim 1 wherein said powder includes superconductor precursor material.
Claim 4
Dependent Claim
19 words
A method for making insulated superconductor wire as recited in claim 1 wherein said powder includes a superconductor material.
Claim 5
Dependent Claim
25 words
A method for making insulated superconductor wire as recited in claim 1 further comprising the step of coating said glass sheath with an organic sealant.
References Cited (Backward Citations)
US3489604A
Cited
US4693865A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1994-09-02 | 1995-03-04 | 1995-09-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1998-09-02 | 1999-03-04 | 1999-09-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2002-09-02 | 2003-03-04 | 2003-09-03 | $7700.00 | Window Closed / Lapsed |