Patent US3564305A successfully refreshed from Google Patents.
US3564305A
Expired / Lapsed
US
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Method and apparatus for creating pulsed magnetic field in a large volume
Assignee: Aerojet Rocketdyne Inc
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Filing: 1965-04-05
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Granted: 1971-02-16
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Expires: 1985-04-05
Abstract
Abstract This disclosure concerns a method and apparatus for creating a pulsed magnetic field in a large volume wherein the pulsed magnetic field may simulate the electromagnetic pulse effects produced by a nuclear detonation. The apparatus comprises an explosive generator disposed in an electrical circuit which includes a segmental inductive loop having a plurality of individual loop segments. The individual loop segments are respectively connected in series in the electrical circuit with the explosive generator and in parallel with respect to each other. The explosive generator includes an explosive charge mounted in a cylindrical armature which is surrounded by helical inductor coil. Upon discharging a pulse of electrical current through the inductor coil and detonating the explosive charge at one end of the armature, the armature is expanded so as to progressively contact the surrounding inductor coil along the length thereof. Thus, the electrical circuit is progressively short circuited, and the trapped magnetic flux is compressed. The trapped magnetic flux is then transferred by the explosive generator into the individual loop segments of the inductive loop with a corresponding increase in current and energy thereby establishing a pulsed magnetic field within the loop volume which is sufficiently large to simulate the electromagnetic pulse effects of a nuclear detonation.
Inventors
- 👤 David B Cummings
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 19:38
CPC Classifications
H; H01; H01F; H01F7/00; H01F7/06; H01F7/20; H01F7/202; H02; H02N; H02N11/00; H02N11/002; H02N11/004
Claims Analysis
Total Claims: 16
Claim 1
Independent Claim
60 words
A high gain explosive generator system comprising: a. explosive generator means for establishing a pulsed electrical current; and b. inductive load means connected to said generator means, said load means comprising a single inductor member divided into physically separated segments, each of said segments being connected in electrical series with said generator means but in electrical parallel with each other.
Claim 2
Dependent Claim
60 words
A high gain explosive generator system comprising: a. explosive generator means for establishing a pulsed electrical current; and b. inductive load means connected to said generator means, said load means comprising a single inductor member divided into physically separated segments, each of said segments being connected in electrical series with said generator means but in electrical parallel with each other.
Claim 3
Dependent Claim
50 words
A high gain explosive generator system comprising: a. explosive generator means for establishing a pulsed electrical current; and b. inductive load means connected in series to said generator means, said load means comprising a single discontinuous inductive loop having a plurality of segments connected in electrical parallel with each other.
Claim 4
Dependent Claim
50 words
A high gain explosive generator system comprising: a. explosive generator means for establishing a pulsed electrical current; and b. inductive load means connected in series to said generator means, said load means comprising a single discontinuous inductive loop having a plurality of segments connected in electrical parallel with each other.
Claim 5
Dependent Claim
6 words
inductor means surrounding said armature; and
Claim 6
Dependent Claim
6 words
inductor means surrounding said armature; and
Claim 7
Independent Claim
68 words
A method of simulating the electromagnetic effects of a nuclear detonation comprising: a. enclosing a volume with a discontinuous inductive loop having a plurality of segments connected in electrical parallel; and b. driving a pulsed electric current from an explosive generator through said loop segments to establish a pulsed magnetic field within the enclosed volume, each of said segments being connected in electrical series with the explosive generator.
Claim 8
Independent Claim
68 words
A method of simulating the electromagnetic effects of a nuclear detonation comprising: a. enclosing a volume with a discontinuous inductive loop having a plurality of segments connected in electrical parallel; and b. driving a pulsed electric current from an explosive generator through said loop segments to establish a pulsed magnetic field within the enclosed volume, each of said segments being connected in electrical series with the explosive generator.
Claim 9
Dependent Claim
174 words
detonator means in proximity to the explosive contained in said armature and actuatable for detonating the explosive; c. said armature and said inductor means of said explosive generator being connected in series in said electrical circuit; d. a segmented inductive loop disposed in said electrical circuit and having a plurality of individual loop segments respectively connected in series in the electrical circuit with said explosive generator and in parallel with respect to each other; e. means in said electrical circuit for discharging a pulsed electrical current through said inductor means of said explosive generator; and f. said detonator means being actuatable in timed relation to the discharge of the pulsed electrical current through said inductor means to detonate the explosive contained in said armature for successively expanding said armature to cause progressive contact between said armature and said inductor means of the explosive generator along the lengths thereof for compressing magnetic flux, whereby the compressed magnetic flux is driven through said loop segments to establish a pulsed magnetic field within said segmented inductive loop.
Claim 10
Dependent Claim
174 words
detonator means in proximity to the explosive contained in said armature and actuatable for detonating the explosive; c. said armature and said inductor means of said explosive generator being connected in series in said electrical circuit; d. a segmented inductive loop disposed in said electrical circuit and having a plurality of individual loop segments respectively connected in series in the electrical circuit with said explosive generator and in parallel with respect to each other; e. means in said electrical circuit for discharging a pulsed electrical current through said inductor means of said explosive generator; and f. said detonator means being actuatable in timed relation to the discharge of the pulsed electrical current through said inductor means to detonate the explosive contained in said armature for successively expanding said armature to cause progressive contact between said armature and said inductor means of the explosive generator along the lengths thereof for compressing magnetic flux, whereby the compressed magnetic flux is driven through said loop segments to establish a pulsed magnetic field within said segmented inductive loop.
Claim 11
Independent Claim
155 words
A method of creating a pulsed magnetic field in a confined volume comprising: a. discharging a pulsed electrical current through the inductor of an explosIve generator comprising an explosive-containing armature and an inductor surrounding the armature; b. detonating the explosive contained in the armature of the explosive generator in timed relation to the discharge of the pulsed electrical current through the inductor of the explosive generator such that successive expansion of the armature due to the detonation of the explosive contained therein causes progressive contact between the armature and the inductor of the explosive generator along the lengths thereof for compressing magnetic flux; and c. directing the compressed magnetic flux having a substantial increase in current and energy from the pulsed electrical current through a segmented inductive loop having a plurality of individual loop segments respectively connected in series in an electrical circuit with the explosive generator and in parallel with respect to each other.
Claim 12
Independent Claim
155 words
A method of creating a pulsed magnetic field in a confined volume comprising: a. discharging a pulsed electrical current through the inductor of an explosIve generator comprising an explosive-containing armature and an inductor surrounding the armature; b. detonating the explosive contained in the armature of the explosive generator in timed relation to the discharge of the pulsed electrical current through the inductor of the explosive generator such that successive expansion of the armature due to the detonation of the explosive contained therein causes progressive contact between the armature and the inductor of the explosive generator along the lengths thereof for compressing magnetic flux; and c. directing the compressed magnetic flux having a substantial increase in current and energy from the pulsed electrical current through a segmented inductive loop having a plurality of individual loop segments respectively connected in series in an electrical circuit with the explosive generator and in parallel with respect to each other.
Claim 13
Dependent Claim
147 words
A high gain explosive generator system comprising: a. an electrical circuit; b. explosive generator means disposed in said electrical circuit for providing compressed magnetic flux upon actuation thereof by an explosion; c. a segmented inductive loop disposed in said electrical circuit and having a plurality of individual loop segments respectively connected in series in the electrical circuit with said explosive generator means and in parallel with respect to each other; d. means in said electrical circuit for discharging a pulsed electrical current through at least a portion of said explosive generator means; and e. means operating in timed relation to the discharge of the pulsed electrical current to cause an explosion actuating said explosive generator means, whereby the compressed magnetic flux provided by the actuation of said explosive generator means is driven through said loop segments to establish a pulsed magnetic field within said segmented inductive loop.
Claim 14
Dependent Claim
147 words
A high gain explosive generator system comprising: a. an electrical circuit; b. explosive generator means disposed in said electrical circuit for providing compressed magnetic flux upon actuation thereof by an explosion; c. a segmented inductive loop disposed in said electrical circuit and having a plurality of individual loop segments respectively connected in series in the electrical circuit with said explosive generator means and in parallel with respect to each other; d. means in said electrical circuit for discharging a pulsed electrical current through at least a portion of said explosive generator means; and e. means operating in timed relation to the discharge of the pulsed electrical current to cause an explosion actuating said explosive generator means, whereby the compressed magnetic flux provided by the actuation of said explosive generator means is driven through said loop segments to establish a pulsed magnetic field within said segmented inductive loop.
Claim 15
Dependent Claim
22 words
A high gain explosive generator system comprising: a. an electrical circuit; b. an explosive generator disposed in said electrical circuit and comprising;
Claim 16
Dependent Claim
22 words
A high gain explosive generator system comprising: a. an electrical circuit; b. an explosive generator disposed in said electrical circuit and comprising;
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) | 1974-02-15 | 1974-08-17 | 1975-02-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-02-15 | 1978-08-17 | 1979-02-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-02-15 | 1982-08-17 | 1983-02-16 | $7700.00 | Window Closed / Lapsed |