US3260869A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for reversibly extracting energy from a plasma by magnetic pumping
Assignee: Individual
•
Filing: 1963-11-20
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Granted: 1966-07-12
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Expires: 1983-11-20
Abstract
No abstract record available.
Inventors
- 👤 Laurence S Hall
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 04:43
CPC Classifications
H; H05; H05H; H05H1/00; H05H1/02; H05H1/10; H05H1/105
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
168 words
A METHOD OF EXTRACTING ENERGY FROM A PLASMA COMPRISING THE STEPS OF: (A) CONFINING A PLASMA BY A FIRST EXTERNALLY-IMPOSED STATIC MAGNETIC FIELD, SAID FIRST MAGNETIC FIELD HAVING A CONSTANT MAGNITUDE HO FOR AT LEAST A SUBSTANTIAL PORTION THEREOF; (B) APPLYING A SECOND EXTERNALLY-IMPOSED TIME VARYING MAGNETIC FIELD TO AT LEAST A PORTION OF SAID CONFINED PLASMA; (C) CAUSING SAID TIME-VARYING FIELD TO FALL FROM A MAGNITUDE HMAX TO A MAGNITUDE HMIN IN A TIME INTERVAL TF; (D) CAUSING SAID TIME-VARYING FIELD TO INCREASE FROM SAID MAGNITUDE HMIN TO SAID MAGNITUDE HMAX IN A TIME INTERVAL TR, WHEREIN THE FOLLOWING TIME RELATIONSHIPS ARE SIMULTANEOUSLY SATISFIED: (1) TF IS SUBSTANTIALLY LESS THAN TR, (2) BOTH TF AND TR ARE SUBSTANTIALLY GREATER THAN TCY WHERE TCY IS THE CYCLOTRON PERIOD, (3) TCY <<TF<<TTR, TCOLL; WHERE TTR IS THE ION TRANSIT TIME, AND TCOLL IS THE TIME FOR A 90* DEFLECTION OF AN ION, (E) AND REPEATING STEPS (B) THROUGH (D) ABOVE UNTIL THE DESIRED ENERGY IS EXTRACTED FROM THE PLASMA.
Claim 2
Independent Claim
168 words
A METHOD OF EXTRACTING ENERGY FROM A PLASMA COMPRISING THE STEPS OF: (A) CONFINING A PLASMA BY A FIRST EXTERNALLY-IMPOSED STATIC MAGNETIC FIELD, SAID FIRST MAGNETIC FIELD HAVING A CONSTANT MAGNITUDE HO FOR AT LEAST A SUBSTANTIAL PORTION THEREOF; (B) APPLYING A SECOND EXTERNALLY-IMPOSED TIME VARYING MAGNETIC FIELD TO AT LEAST A PORTION OF SAID CONFINED PLASMA; (C) CAUSING SAID TIME-VARYING FIELD TO FALL FROM A MAGNITUDE HMAX TO A MAGNITUDE HMIN IN A TIME INTERVAL TF; (D) CAUSING SAID TIME-VARYING FIELD TO INCREASE FROM SAID MAGNITUDE HMIN TO SAID MAGNITUDE HMAX IN A TIME INTERVAL TR, WHEREIN THE FOLLOWING TIME RELATIONSHIPS ARE SIMULTANEOUSLY SATISFIED: (1) TF IS SUBSTANTIALLY LESS THAN TR, (2) BOTH TF AND TR ARE SUBSTANTIALLY GREATER THAN TCY WHERE TCY IS THE CYCLOTRON PERIOD, (3) TCY <<TF<<TTR, TCOLL; WHERE TTR IS THE ION TRANSIT TIME, AND TCOLL IS THE TIME FOR A 90* DEFLECTION OF AN ION, (E) AND REPEATING STEPS (B) THROUGH (D) ABOVE UNTIL THE DESIRED ENERGY IS EXTRACTED FROM THE PLASMA.
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) | 1969-07-11 | 1970-01-10 | 1970-07-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-07-11 | 1974-01-10 | 1974-07-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-07-11 | 1978-01-10 | 1978-07-12 | $7700.00 | Window Closed / Lapsed |