US3278384A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Negative "v" stellarator
Assignee: Individual
•
Filing: 1965-04-13
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Granted: 1966-10-11
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Expires: 1985-04-13
Abstract
No abstract record available.
Inventors
- 👤 Lenard Andrew
- 👤 Russell M Kulsrud
- 👤 John L Johnson
- 👤 Ira B Bernstein
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 09:58
CPC Classifications
G; G21; G21B; G21B1/00; G21B1/05; G21B1/055; Y; Y02; Y02E; Y02E30/00; Y02E30/10
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
130 words
IN A PLASMA CONFINING APPARATUS FOR CONFINING A COLUMN OF IONS AND ELECTRONS IN A TOROIDAL SYSTEM, OF THE TYPE HAVING IN A PLANE AN ENDLESS TOROIDAL MAGNETICALLY PERMEABLE TUBE FORMING AN ANNULUS BOUNDED BY STRAIGHT AND CONNECTING LOOPED TUBE PORTIONS, MEANS HAIVING AN TORODIAL MAGNETIC FIELD LINES FOR PRODUCING AN INWARD TOROTIDAL MAGNETIC FIELD LINES FOR PRODUCING AN INWARD MAGNETIC FIELD PRESSURE ALONG AN AXIS CORRESPONDING TO THE AXIS OF THE TUBE AND MEANS FOR PROVIDING IN SAID TUBE A PLASMA THAT EXERTS AN OUTWARD PRESSURE AGAINST SAID MAGNETIC FIELD PRRSSURE, THE IMPROVEMENT COMPRISING MEANS CONSISTING OF MULTIPOLAR HELICAL SECOND COILS FOR DETERMINING MAGNETIC SURFACES AND PROVIDING A RIPPLE ON THE MAGNETIC SURFACES FOR PRODUCING A VOLUME PER UNIT MAGNETIC FLUX ENCLOSED BETWEEN NIGHBORHOOD TOROIDAL MAGNETIC SURFACES DECREASING OUTWARDLY.
Claim 2
Dependent Claim
130 words
IN A PLASMA CONFINING APPARATUS FOR CONFINING A COLUMN OF IONS AND ELECTRONS IN A TOROIDAL SYSTEM, OF THE TYPE HAVING IN A PLANE AN ENDLESS TOROIDAL MAGNETICALLY PERMEABLE TUBE FORMING AN ANNULUS BOUNDED BY STRAIGHT AND CONNECTING LOOPED TUBE PORTIONS, MEANS HAIVING AN TORODIAL MAGNETIC FIELD LINES FOR PRODUCING AN INWARD TOROTIDAL MAGNETIC FIELD LINES FOR PRODUCING AN INWARD MAGNETIC FIELD PRESSURE ALONG AN AXIS CORRESPONDING TO THE AXIS OF THE TUBE AND MEANS FOR PROVIDING IN SAID TUBE A PLASMA THAT EXERTS AN OUTWARD PRESSURE AGAINST SAID MAGNETIC FIELD PRRSSURE, THE IMPROVEMENT COMPRISING MEANS CONSISTING OF MULTIPOLAR HELICAL SECOND COILS FOR DETERMINING MAGNETIC SURFACES AND PROVIDING A RIPPLE ON THE MAGNETIC SURFACES FOR PRODUCING A VOLUME PER UNIT MAGNETIC FLUX ENCLOSED BETWEEN NIGHBORHOOD TOROIDAL MAGNETIC SURFACES DECREASING OUTWARDLY.
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) | 1969-10-10 | 1970-04-11 | 1970-10-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-10-10 | 1974-04-11 | 1974-10-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-10-10 | 1978-04-11 | 1978-10-11 | $7700.00 | Window Closed / Lapsed |