US3141826A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus and method for confining a plasma
Assignee: Individual
•
Filing: 1958-07-02
•
Granted: 1964-07-21
•
Expires: 1978-07-02
Abstract
No abstract record available.
Inventors
- 👤 Kurt O Friedrichs
- 👤 Grad Harold
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 12:03
CPC Classifications
H; H05; H05H; H05H1/00; H05H1/02; H05H1/10; H05H1/11; Y; Y02; Y02E; Y02E30/00; Y02E30/10
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
131 words
IN A PLASMA DEVICE HAVING A CONTAINER, A GAS OF LOW ATOMIC WEIGHT, AND MEANS FOR HEATING AND IONIZING SAID GAS TO FORM A SUBSTANTIALLY PERFECTLY CONDUCTING PLASMA WITHIN THE CONTAINER, THE IMPROVEMENT COMPRISING FIRST AND SECOND CURRENT CONDUCTING COILS, DISPLACED FROM EACH OTHER ALONG THE LENGTH OF THE DEVICE IN PARALLEL PLANES AT OPPOSITE ENDS OF THE PLASMA, MEANS FOR ENERGIZING SAID COILS WITH OPPOSITELY DIRECTED EQUAL CURRENTS FOR FORMING A CONVEX PLASMA-FIELD INTERFACE IN WHICH MAGNETIC LINES OF FORCE INTERSECT TO FORM A BI-CONICAL MONOCUSP HAVING OPPOSITE POINTS CUSPS CONNECTED TO AN ANNULAR LINE CUSP MIDWAY THEREBETWEEN, SAID CURRENT BEING SUFFICIENTLY LARGE SUCH THAT THE RATIO OF PLASMA PRESSURE TO MAGNETIC FIELD PRESSURE IS EQUAL TO ONE, AND MEANS FOR RAPIDLY INCREASING SAID CURRENT FOR ADIABATICALLY COMPRESSING SAID PLASMA.
Claim 2
Dependent Claim
131 words
IN A PLASMA DEVICE HAVING A CONTAINER, A GAS OF LOW ATOMIC WEIGHT, AND MEANS FOR HEATING AND IONIZING SAID GAS TO FORM A SUBSTANTIALLY PERFECTLY CONDUCTING PLASMA WITHIN THE CONTAINER, THE IMPROVEMENT COMPRISING FIRST AND SECOND CURRENT CONDUCTING COILS, DISPLACED FROM EACH OTHER ALONG THE LENGTH OF THE DEVICE IN PARALLEL PLANES AT OPPOSITE ENDS OF THE PLASMA, MEANS FOR ENERGIZING SAID COILS WITH OPPOSITELY DIRECTED EQUAL CURRENTS FOR FORMING A CONVEX PLASMA-FIELD INTERFACE IN WHICH MAGNETIC LINES OF FORCE INTERSECT TO FORM A BI-CONICAL MONOCUSP HAVING OPPOSITE POINTS CUSPS CONNECTED TO AN ANNULAR LINE CUSP MIDWAY THEREBETWEEN, SAID CURRENT BEING SUFFICIENTLY LARGE SUCH THAT THE RATIO OF PLASMA PRESSURE TO MAGNETIC FIELD PRESSURE IS EQUAL TO ONE, AND MEANS FOR RAPIDLY INCREASING SAID CURRENT FOR ADIABATICALLY COMPRESSING SAID PLASMA.
References Cited (Backward Citations)
US2868991A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-07-21 | 1968-01-20 | 1968-07-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-07-21 | 1972-01-20 | 1972-07-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-07-21 | 1976-01-20 | 1976-07-21 | $7700.00 | Window Closed / Lapsed |