US4871925A
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High-voltage pulse generating apparatus
Assignee: Proterial Ltd
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Filing: 1988-10-24
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Granted: 1989-10-03
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Expires: 2008-10-24
Abstract
Abstract A high-voltage pulse generating apparatus having at least one magnetic switch comprising a magnetic core constituted by an Fe-base soft magnetic alloy ribbon wound in a toroidal form, the alloy having the composition represented by the general formula: ##STR1## wherein M is Co and/or Ni, M' is at least one element selected from the group consisting of Nb, W, Ta, Zr, Hf, Ti and Mo, M" is at least one element selected from the group consisting of V, Cr, Mn, Al, elements in the platinum group, Sc, Y, rare earth elements, Au, Zn, Sn and Re, X is at least one element selected from the group consisting of C, Ge, P, Ga, Sb, In, Be and As, and a, x, y, z, α, β and γ respectively satisfy 0≦a≦0.5, 0.1≦x≦3, 6≦y≦25, 3≦z≦15, 14≦y+z≦30, 1≦α≦10, 0≦β≦10 and 0≦γ≦10, at least 50% of the alloy structure being fine crystalline particles consisting of a bcc Fe solid solution and having an average particle size of 500 Å or less.
Inventors
- 👤 Kiyotaka Yamauchi
- 👤 Yoshihito Yoshizawa
- 👤 Shin Nakajima
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 23:41
CPC Classifications
H; H01; H01F; H01F1/00; H01F1/01; H01F1/03; H01F1/12; H01F1/14; H01F1/147; H01F1/153; H01F1/15308; H01F1/15383
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
165 words
A high-voltage pulse generating apparatus having at least one magnetic switch comprising a magnetic core comprising an Fe-base soft magnetic alloy ribbon wound in a toroidal form, said alloy having the composition represented by the general formula: ##STR4## wherein M is Co and/or Ni, M' is at least one element selected from the group consisting of Nb, W, Ta, Zr, Hf, Ti and Mo, M" is at least one element selected from the group consisting of V, Cr, Mn, Al, elements in the platinum group, Sc, Y, rare earth elements, Au, Zn, Sn and Re, X is at least one element selected from the group consisting of C, Ge, P, Ga, Sb, In, Be and As, and a, x, y, z, α, β and γ respectively satisfy 0≦a≦0.5, 0.1≦x≦3, 6≦y≦25, 3≦z≦15, 14≦y+z≦30, 1≦α≦10, 0≦β≦10 and 0≦γ≦10, at least 50% of the alloy ribbon being fine crystalline particles consisting of a bcc Fe solid solution and having an average particle size of 500 Å or less.
Claim 2
Dependent Claim
165 words
A high-voltage pulse generating apparatus having at least one magnetic switch comprising a magnetic core comprising an Fe-base soft magnetic alloy ribbon wound in a toroidal form, said alloy having the composition represented by the general formula: ##STR4## wherein M is Co and/or Ni, M' is at least one element selected from the group consisting of Nb, W, Ta, Zr, Hf, Ti and Mo, M" is at least one element selected from the group consisting of V, Cr, Mn, Al, elements in the platinum group, Sc, Y, rare earth elements, Au, Zn, Sn and Re, X is at least one element selected from the group consisting of C, Ge, P, Ga, Sb, In, Be and As, and a, x, y, z, α, β and γ respectively satisfy 0≦a≦0.5, 0.1≦x≦3, 6≦y≦25, 3≦z≦15, 14≦y+z≦30, 1≦α≦10, 0≦β≦10 and 0≦γ≦10, at least 50% of the alloy ribbon being fine crystalline particles consisting of a bcc Fe solid solution and having an average particle size of 500 Å or less.
Claim 3
Dependent Claim
26 words
The high-voltage pulse generating apparatus according to claim 1, wherein said a, x, y, z and a respectively satisfy 0≦a≦0.1, 0.5≦x≦2, 10≦y≦25, 3≦z≦12, 18≦y+z≦28 and 2≦α≦8.
Claim 4
Dependent Claim
21 words
The high-voltage pulse generating apparatus according to claim 1 or 2, wherein the balance of said alloy ribbon is substantially amorphous.
Claim 5
Dependent Claim
22 words
The high-voltage pulse generating apparatus according to claim 1 or 2, wherein said alloy ribbon substantially consists of said fine crystalline particles.
Claim 6
Dependent Claim
13 words
The high-voltage pulse generating apparatus according to claim 1, wherein M' is Nb.
Claim 7
Dependent Claim
25 words
The high-voltage pulse generating apparatus according to claim 1, wherein said alloy has a saturation magnetostriction λ s between +5×10 -6 and -5×10 -6 .
Claim 8
Dependent Claim
18 words
The high-voltage pulse generating apparatus according to claim 1, wherein said ribbon has a thickness of 5-25 μm.
Claim 9
Dependent Claim
27 words
The high-voltage pulse generating apparatus according to any of claims 1, 2, 5 or 6, wherein said ribbon is partially or totally coated with an insulating layer.
Claim 10
Dependent Claim
22 words
The high voltage pulse generating apparatus according to claim 3, wherein said ribbon is partially or totally coated with an insulating layer.
Claim 11
Dependent Claim
22 words
The high voltage pulse generating apparatus according to claim 4, wherein said ribbon is partially or totally coated with an insulating layer.
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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) | 1992-10-02 | 1993-04-03 | 1993-10-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1996-10-02 | 1997-04-03 | 1997-10-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2000-10-02 | 2001-04-03 | 2001-10-03 | $7700.00 | Window Closed / Lapsed |