Patent US4288289A successfully refreshed from Google Patents.
US4288289A
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US
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Strong focusing megatron
Assignee: Individual
•
Filing: 1978-03-30
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Granted: 1981-09-08
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Expires: 1998-03-30
Abstract
Abstract A strong focusing megatron has a hollow toroidal chamber in which a plasma of isotopes of hydrogen support an orbital current driven by a changing magnetic field whose amplitude is controllably variable and whose direction is generally coaxial with the major axis (z-axis) of the toroidal chamber while the current is stabilized by a strong focusing magnetic field of alternately focusing and defocusing sections whose field is generally in the region of the toroidal chamber.
Inventors
- 👤 Ronald W. Landau
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 12:07
CPC Classifications
H; H05; H05H; H05H1/00; H05H1/02; H05H1/10; H05H1/12; Y; Y02; Y02E; Y02E30/00; Y02E30/10
Claims Analysis
Total Claims: 16
Claim 1
Independent Claim
148 words
A fushion machine comprising a hollow toroidal chamber, a gas of ionized isotopes of hydrogen in said chamber, means for establishing an inducing magnetic field whose amplitude is controllably variable and which has a component perpendicular to the plane of said hollow toroidal chamber and said component being coaxial with the axis of revolution of said hollow toroidal chamber so that an increasing circular plasma electric current is induced in said hollow toroidal chamber as said inducing magnetic field increases, and generating means for generating a strong focusing magnetic field whose amplitude is controllably variable to be proportional to the plasma current and which is toroidally disposed about said axis of revolution and enters on one side of said hollow toroidal cylinder, passes through said hollow toroidal chamber and exits on the other side of said hollow toroidal cylinder in a direction parallel to said axis of revolution.
Claim 2
Dependent Claim
148 words
A fushion machine comprising a hollow toroidal chamber, a gas of ionized isotopes of hydrogen in said chamber, means for establishing an inducing magnetic field whose amplitude is controllably variable and which has a component perpendicular to the plane of said hollow toroidal chamber and said component being coaxial with the axis of revolution of said hollow toroidal chamber so that an increasing circular plasma electric current is induced in said hollow toroidal chamber as said inducing magnetic field increases, and generating means for generating a strong focusing magnetic field whose amplitude is controllably variable to be proportional to the plasma current and which is toroidally disposed about said axis of revolution and enters on one side of said hollow toroidal cylinder, passes through said hollow toroidal chamber and exits on the other side of said hollow toroidal cylinder in a direction parallel to said axis of revolution.
Claim 3
Dependent Claim
22 words
The fusion machine of claim 1 wherein the strong focusing magnetic field varies along a path traced azimuthally about its cylindrical periphery.
Claim 4
Dependent Claim
18 words
The fusion machine of claim 2 wherein the strong focusing magnetic field periodically varies along said azimuthal path.
Claim 5
Dependent Claim
27 words
The fusion machine of claim 3 wherein the flux lines of the strong focusing magnetic field periodically varies between convex and concave bowing along said azimuthal path.
Claim 6
Dependent Claim
26 words
The fusion machine of claim 4 wherein the amplitude of the strong focusing magnetic field varies in synchronism with the amplitude of the inducing magnetic field.
Claim 7
Dependent Claim
27 words
The fusion machine of claim 4 wherein said strong focusing generating means comprises a plurality of pairs of magnet sections in operative proximity with said toroidal chamber.
Claim 8
Dependent Claim
19 words
The fusion machine of claim 4 wherein the number of pairs of magnetic sections range between 3 and 8.
Claim 9
Dependent Claim
18 words
The fusion machine of claim 4 wherein adjacent magnetic sections are on opposite sides of said toroidal chamber.
Claim 10
Dependent Claim
16 words
The fusion machine of claim 8 wherein adjacent magnetic sections are separated by an air gap.
Claim 11
Dependent Claim
25 words
The fusion machine of claim 9 wherein the length of the air gap is between 50% and 80% of the length of a magnet section.
Claim 12
Dependent Claim
21 words
The fusion machine of claim 4 wherein alternate magnet sections are focusing sections and the intervening magnet sections are defocusing sections.
Claim 13
Dependent Claim
23 words
The fusion machine of claim 11 wherein each defocusing section has a field index n D in the range of 4.5 to 8.
Claim 14
Dependent Claim
14 words
The fusion machine of claim 12 wherein the field index n D equals 7.
Claim 15
Dependent Claim
19 words
The fusion machine of claim 12 wherein each focusing section has a field index n F =1-n D .
Claim 16
Dependent Claim
24 words
The fusion machine of claim 6 wherein said magnet sections are arrays of current conductors aligned parallel to the azimuthal of the toroidal chamber.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1984-09-07 | 1985-03-09 | 1985-09-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-09-07 | 1989-03-09 | 1989-09-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-09-07 | 1993-03-09 | 1993-09-08 | $7700.00 | Window Closed / Lapsed |