Patent DE527812C successfully refreshed from Google Patents.
US2969308A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of producing energetic plasma for neutron production
Assignee: Individual
•
Filing: 1958-08-07
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Granted: 1961-01-24
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Expires: 1978-08-07
Abstract
No abstract record available.
Inventors
- 👤 Persa R Bell
- 👤 Jr Robert J Mackin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 09:11
CPC Classifications
G; G21; G21B; G21B1/00; H; H05; H05H; H05H1/00; H05H1/02; H05H1/22; Y; Y02; Y02E; Y02E30/00; Y02E30/10
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
349 words
THE METHOD OF INITIATING AND SUSTAINING AN ENERGETIC PLASMA FOR THE PRODUCTION OF NEUTRONS IN AN EVACUATED REACTION CHAMBER SURROUND BY A PLURALITY OF ELECTROMAGNETIC COILS IN END-TO-END RELATION COMPRISING THE STEPS OF SELECTIVELY ENERGIZING SOME OF SAID COILS TO ESTABLISH A RELATIVELY LARGE FIRST VALUE OF CONTAINING MAGNETIC FIELD IN A SMALL PORTION OF SAID CHAMBER TO FORM A MAGNETICALLY CONTAINED SUB-VOLUME, SAID SUB-VOLUME BEING FORMED BY TWO MAGNETIC MIRROR REGIONS SPACED APART AXIALLY WITH A UNIFORM MAGNETIC FIELD THEREBETWEEN AND HAVING A MIRROR RATIO OF AT LEAST 3.5 TO 1; INITATING AN ENERGETIC ARC DISCHARGE BETWEEN TWO ELECTRODES, SAID DISCHARGE PASSING THROUGH SAID SUB-VOLUME ALONG THE CONTAINING MAGNETIC FIELD LINES; INJECTING A SELECTED CURRENT OF RELATIVELY HIGHENERGY MOLECULAR IONS INTO THE PATH OF SAID DISCHARGE WHERE A PORTION OF SAID MOLECULAR IONS ARE DISSOCIATED AND/OR IONIZED TO FORM ATOMIC IONS WHICH ARE TRAPPED BY SAID CONTAINING MAGNETIC FIELD TO FORM AN ENERGETIC PLASMA IN WHICH NEUTRONS ARE PRODUCED WITHIN SAID SUB-VOLUME, SAID SELECTED CURRENT BEING AT LEAST GREATER THAN THAT REQUIRED FOR PRODUCING A CURRENT OF ATOMIC IONS SUFFICIENT TO ACHIEVE BURNOUT OF NEUTRAL PARTICLES IN SAID SUB-VOLUME INCREASING THE MAGNETIC FIELD STRENGTH OF SAID SUB-VOLUME TO A VALUE AT LEAST FIVE TIMES LARGER THAN SAID FIRST VALUE AFTER SAID PLASMA IS FORMED; SIMULTANEOUSLY TERMINATING SAID ARC DISCHARGE AND THE INJECTION OF SAID HIGH ENERGY MOLECULAR BEAM, AND THEN INJECTING RELATIVELY LOW-ENERGY PARTICLES AT A SELECTED FEED RATE INTO SAID PLASMA UNTIL SAID SUB-VOLUME IS FILLED WITH A PLASMA; THEN CONTINUING SAID INJECTION OF SAID LOW-ENERGY PARTICLES WHILE AT THE SAME TIME PERIODICALLY, STEP-BY-STEP INCREASING THE LENGTH OF SAID MAGNETICALLY CONTAINED SUB-VOLUME, EACH SAID STEP COMPRISING DECREASING THE CURRENT FLOW THROUGH THE COIL FORMING ONE OF SAID MAGNETIC MIRROR REGIONS TO RETURN SAID ONE REGION TO SAID UNIFORM FIELD STRENGTH, AND SIMULTANEOU-SLY INCREASING THE CURRENT FLOW THROUGH THE NEXT ADJACENT COIL TO THEREBY ESTABLISH A MIRROR REGION IN ALIGNMENT WITH SAID NEXT ADJACENT COIL, UNTIL SAID SUB-VOLUME HAS BEEN EXPANDED TO ENCOMPASS THE ENTIRE REACTION CHAMBER AND EXPANDED TO ENCOMPASS THE ENTIRE REACTION CHAMBER QUANTITY OF NEUTRONS.
Claim 2
Independent Claim
349 words
THE METHOD OF INITIATING AND SUSTAINING AN ENERGETIC PLASMA FOR THE PRODUCTION OF NEUTRONS IN AN EVACUATED REACTION CHAMBER SURROUND BY A PLURALITY OF ELECTROMAGNETIC COILS IN END-TO-END RELATION COMPRISING THE STEPS OF SELECTIVELY ENERGIZING SOME OF SAID COILS TO ESTABLISH A RELATIVELY LARGE FIRST VALUE OF CONTAINING MAGNETIC FIELD IN A SMALL PORTION OF SAID CHAMBER TO FORM A MAGNETICALLY CONTAINED SUB-VOLUME, SAID SUB-VOLUME BEING FORMED BY TWO MAGNETIC MIRROR REGIONS SPACED APART AXIALLY WITH A UNIFORM MAGNETIC FIELD THEREBETWEEN AND HAVING A MIRROR RATIO OF AT LEAST 3.5 TO 1; INITATING AN ENERGETIC ARC DISCHARGE BETWEEN TWO ELECTRODES, SAID DISCHARGE PASSING THROUGH SAID SUB-VOLUME ALONG THE CONTAINING MAGNETIC FIELD LINES; INJECTING A SELECTED CURRENT OF RELATIVELY HIGHENERGY MOLECULAR IONS INTO THE PATH OF SAID DISCHARGE WHERE A PORTION OF SAID MOLECULAR IONS ARE DISSOCIATED AND/OR IONIZED TO FORM ATOMIC IONS WHICH ARE TRAPPED BY SAID CONTAINING MAGNETIC FIELD TO FORM AN ENERGETIC PLASMA IN WHICH NEUTRONS ARE PRODUCED WITHIN SAID SUB-VOLUME, SAID SELECTED CURRENT BEING AT LEAST GREATER THAN THAT REQUIRED FOR PRODUCING A CURRENT OF ATOMIC IONS SUFFICIENT TO ACHIEVE BURNOUT OF NEUTRAL PARTICLES IN SAID SUB-VOLUME INCREASING THE MAGNETIC FIELD STRENGTH OF SAID SUB-VOLUME TO A VALUE AT LEAST FIVE TIMES LARGER THAN SAID FIRST VALUE AFTER SAID PLASMA IS FORMED; SIMULTANEOUSLY TERMINATING SAID ARC DISCHARGE AND THE INJECTION OF SAID HIGH ENERGY MOLECULAR BEAM, AND THEN INJECTING RELATIVELY LOW-ENERGY PARTICLES AT A SELECTED FEED RATE INTO SAID PLASMA UNTIL SAID SUB-VOLUME IS FILLED WITH A PLASMA; THEN CONTINUING SAID INJECTION OF SAID LOW-ENERGY PARTICLES WHILE AT THE SAME TIME PERIODICALLY, STEP-BY-STEP INCREASING THE LENGTH OF SAID MAGNETICALLY CONTAINED SUB-VOLUME, EACH SAID STEP COMPRISING DECREASING THE CURRENT FLOW THROUGH THE COIL FORMING ONE OF SAID MAGNETIC MIRROR REGIONS TO RETURN SAID ONE REGION TO SAID UNIFORM FIELD STRENGTH, AND SIMULTANEOU-SLY INCREASING THE CURRENT FLOW THROUGH THE NEXT ADJACENT COIL TO THEREBY ESTABLISH A MIRROR REGION IN ALIGNMENT WITH SAID NEXT ADJACENT COIL, UNTIL SAID SUB-VOLUME HAS BEEN EXPANDED TO ENCOMPASS THE ENTIRE REACTION CHAMBER AND EXPANDED TO ENCOMPASS THE ENTIRE REACTION CHAMBER QUANTITY OF NEUTRONS.
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) | 1964-01-24 | 1964-07-25 | 1965-01-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-01-24 | 1968-07-25 | 1969-01-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-01-24 | 1972-07-25 | 1973-01-24 | $7700.00 | Window Closed / Lapsed |