US3702163A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Device for compression heating of tokamak discharges
Assignee: United States Atomic Energy Commission
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Filing: 1970-04-15
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Granted: 1972-11-07
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Expires: 1990-04-15
Abstract
Abstract AN APPARATUS IS DISCLOSED FOR HEATING AND COMPRESSING A TORODIAL PLASMA COLUMN. THE APPARATUS COMPRISES A TOROIDAL EVACULATED CONTAINER, HAVING ANNULAR TOROIDAL AND POLOIDAL COILS CENTERED ON THE MAJOR AXIS. INTERACTING FIELDS PRODUCE AN INWARD COMPRESSION OF THE PLAMA COLUMN TOWARD THE MAJOR AXIS CHARACTERIZED BY A REDUCTION IN THE MAJOR AND MINOR RADII OF THE PLASMA COLUMN.
Inventors
- 👤 Harold P Furth
- 👤 Shoichi Yoshikawa
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 16:09
CPC Classifications
G; G21; G21B; G21B1/00; G21B1/05; G21B1/057; Y; Y02; Y02E; Y02E30/00; Y02E30/10
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-11-07 | 1976-05-08 | 1976-11-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-11-07 | 1980-05-08 | 1980-11-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-11-07 | 1984-05-08 | 1984-11-07 | $7700.00 | Window Closed / Lapsed |