US3913044A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Superconducting magnet with ribbon-shaped conductor
Assignee: Siemens AG
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Filing: 1973-10-18
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Granted: 1975-10-14
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Expires: 1993-10-18
Abstract
Abstract An improved ribbon-shaped conductor which is made up of several individual conductors each containing a plurality of superconductors in which the individual conductors are fastened side-by-side on a flat side of a reinforcing strip with mutual spacing between individual conductors to provide a ribbon-shaped conductor which substantially reduces the excitation build-up losses caused by transversal currents in superconducting magnet coils.
Inventors
- 👤 Cord Albrecht
- 👤 Hans Lamatsch
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 13:33
CPC Classifications
H; H10; H10N; H10N60/00; H10N60/20; H01; H01F; H01F6/00; H01F6/06; Y; Y10; Y10S; Y10S505/00; Y10S505/825; Y10S505/884; Y10S505/887
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
78 words
A ribbon-shaped conductor having improved transversal resistance comprising: a planar strip member; and a plurality of individual conductors, each having a plurality of superconductors embedded therein, welded to said strip member in parallel, spaced-apart relationship by a plurality of welds extending in the longitudinal direction of said individual conductors, with the welded seams thereof being disposed approximately perpendicular to said strip member and approximately at the center of the surfaces of said individual conductors contacting said strip member.
Claim 2
Dependent Claim
78 words
A ribbon-shaped conductor having improved transversal resistance comprising: a planar strip member; and a plurality of individual conductors, each having a plurality of superconductors embedded therein, welded to said strip member in parallel, spaced-apart relationship by a plurality of welds extending in the longitudinal direction of said individual conductors, with the welded seams thereof being disposed approximately perpendicular to said strip member and approximately at the center of the surfaces of said individual conductors contacting said strip member.
Claim 3
Dependent Claim
23 words
The conductor recited in claim 1, wherein said individual conductors comprise oxygen-free copper, and said superconductor wires are fabricated of a nioBium-titanium alloy.
Claim 4
Dependent Claim
15 words
The conductor recited in claim 1, wherein said strip member is fabricated of stainless steel.
Claim 5
Dependent Claim
28 words
The conductor recited in claim 1, wherein said individual conductors have a rectangular cross-sectional shape and have one of their larger flat sides welded to said strip member.
Claim 6
Dependent Claim
55 words
The conductor recited in claim 1, wherein said ribbon-shaped conductors are disposed in a superconducting magnet, and wherein the cross-section of said superconductors embedded in said individual conductors is proportional to the distance of said conductors from the axis of said magnet, said cross-section decreasing as said distance from the axis of said magnet increases.
Claim 7
Dependent Claim
22 words
The conductor recited in claim 1, wherein said individual conductors have coolant flow spaces disposed therebetween in which a coolant may flow.
Claim 8
Dependent Claim
21 words
The conductor recited in claim 1, wherein the said individual conductors have spaces disposed therebetween which are filled with insulation material.
Claim 9
Dependent Claim
13 words
The conductor recited in claim 1, wherein said welds comprise electron beam welds.
Claim 10
Dependent Claim
87 words
The conductor recited in claim 1, wherein said welds include welded seams originating at one side of said strip member opposite said conductors and extending through said individual conductors, seams originating at said side of said strip member and extending partially through said individual conductors, seams originating at one surface of said individual conductors opposite that which is welded to said strip member and extending completely through said strip member, and seams originating at said surface of said individual conductors and extending partially through said strip member.
Claim 11
Dependent Claim
18 words
The conductor recited in claim 1, wherein said welds are not continuous in each of said individual conductors.
Claim 12
Dependent Claim
15 words
The conductor recited in claim 1, wherein said strip member includes cut outs disposed therethrough.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-10-13 | 1979-04-14 | 1979-10-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-10-13 | 1983-04-14 | 1983-10-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-10-13 | 1987-04-14 | 1987-10-14 | $7700.00 | Window Closed / Lapsed |