Patent US4974136A successfully refreshed from Google Patents.
Patent US3859615A successfully refreshed from Google Patents.
US3859615A
Expired / Lapsed
US
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Torus windings having asymmetric magnet coils
Assignee: United States Atomic Energy Commission
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Filing: 1973-07-30
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Granted: 1975-01-07
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Expires: 1993-07-30
Abstract
Abstract For toroidal devices, magnet coils are provided that are not axisymmetrical about their central axes. The coils have a winding cross section which, on the side nearest the torus axis, is compact and carries a higher current density, while its opposite side is expanded and carries a lower current density. The new coil designs provide coil shapes that permit construction of the individual magnet coils with an appreciable reduction of power while permitting adequate access between the coils of the torus.
Inventors
- 👤 Jr James N Luton
- 👤 Wilhelm F Gauster
- 👤 Robert L Brown
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 14:13
CPC Classifications
H; H01; H01F; H01F7/00; H01F7/06; H01F7/20; H01F7/202; H01F5/00
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
85 words
An improved magnetic field producing system for providing the toroidal fields of an experimental thermonuclear device, comprising a plurality of asymmetric coils arranged in the form of torus, each of said coils being provided with a winding cross section which has the turns thereof compact on the side nearest the torus main axis and adapted to carry a higher current density while in other areas said winding cross section is expanded in the outward directions, said other areas adapted to carry a lower current density.
Claim 2
Dependent Claim
85 words
An improved magnetic field producing system for providing the toroidal fields of an experimental thermonuclear device, comprising a plurality of asymmetric coils arranged in the form of torus, each of said coils being provided with a winding cross section which has the turns thereof compact on the side nearest the torus main axis and adapted to carry a higher current density while in other areas said winding cross section is expanded in the outward directions, said other areas adapted to carry a lower current density.
Claim 3
Dependent Claim
75 words
The system set forth in claim 1, wherein there are provided variable spaces between the turns of each of said coils in the expanded portion of said winding cross section, and spacer material consisting of additional conducting pieces filling the respective said variable spaces between the turns of the winding and forming a part thereof, said coils adapted to be connected to a power supply thereby supplying a plasma confining magnetic field for said torus.
Claim 4
Dependent Claim
16 words
The system set forth in claim 2, wherein each of said coils has a constant width.
Claim 5
Dependent Claim
32 words
The system set forth in claim 2, wherein each of said coils has a variable width toward the outer periphery thereof while still providing diagnostic access bwtween respective coils of said system.
Claim 6
Dependent Claim
17 words
the system set forth in claim 2, wherein each of said coils is a circular eccentric coil.
Claim 7
Dependent Claim
27 words
The system set forth in claim 2, wherein each of said coils is a circular concentric coil except for a flat end toward the torus main axis.
Claim 8
Dependent Claim
57 words
The system set forth in claim 2, wherein each of said coils is a circular concentric coil except for a first flat end toward the torus main axis and a second flat end opposite to said first flat end, said second flat end extending radially further from the center of said coil than said first flat end.
References Cited (Backward Citations)
US2709791A
Cited
US3088894A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-01-06 | 1978-07-08 | 1979-01-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-01-06 | 1982-07-08 | 1983-01-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-01-06 | 1986-07-08 | 1987-01-07 | $7700.00 | Window Closed / Lapsed |