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Patent US4893103A successfully refreshed from Google Patents.
US4893103A
Expired / Lapsed
US
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Superconducting PYX structures
Assignee: United States Department of the Army
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Filing: 1989-02-24
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Granted: 1990-01-09
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Expires: 2009-02-24
Abstract
Abstract A permanent magnet structure comprising one or more truncated hollow cyliical flux source (HCFS) segments with the end faces of each segment covered by superconducting sheets. In the case of a plurality of axially aligned segments, the array may be arranged to provide a periodic magnet structure suitable for use in a wiggler.
Inventors
- 👤 Herbert A. Leupold
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 17:09
CPC Classifications
H; H01; H01J; H01J37/00; H01J37/02; H01J37/04; H01J37/10; H01J37/14; H01J37/141; H01J37/1416; H01F; H01F6/00; H01F7/00; H01F7/02; H01F7/0273; H01F7/0278
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
51 words
A permanent magnetic structure comprising at least one truncated hollow substantially cylindrical flux source for producing a uniform high-field in its central cavity, said high field being perpendicular to the axis of the truncated flux source, and a pair of superconducting plates covering the end faces of the truncated flux source.
Claim 2
Dependent Claim
51 words
A permanent magnetic structure comprising at least one truncated hollow substantially cylindrical flux source for producing a uniform high-field in its central cavity, said high field being perpendicular to the axis of the truncated flux source, and a pair of superconducting plates covering the end faces of the truncated flux source.
Claim 3
Dependent Claim
21 words
A permanent magnetic structure defined in claim 1 wherein the superconducting plates are at least peripherally coextensive with the flux source.
Claim 4
Dependent Claim
55 words
A magnetic structure comprising a plurality of truncated hollow substantially cylindrical flux sources, said truncated flux sources being axially aligned in a linear array, each flux source serving to produce a uniform high field in its central cavity, and a pair of superconducting plates covering the end faces of each of the truncated flux sources.
Claim 5
Dependent Claim
55 words
A magnetic structure comprising a plurality of truncated hollow substantially cylindrical flux sources, said truncated flux sources being axially aligned in a linear array, each flux source serving to produce a uniform high field in its central cavity, and a pair of superconducting plates covering the end faces of each of the truncated flux sources.
Claim 6
Dependent Claim
28 words
A magnetic structure as defined in claim 3 wherein each superconducting plate has an axial bore hole to permit passage of an electron beam through the entire array.
Claim 7
Dependent Claim
26 words
A magnetic structure as defined in claim 4 wherein the magnetic fields in the central cavities of successive flux sources in said array alternate in direction.
Claim 8
Dependent Claim
28 words
A magnetic structure as defined in claim 5 wherein the direction of the magnetic fields in the central cavities are perpendicular to the axis of said linear array.
Claim 9
Dependent Claim
23 words
A magnetic structure as defined in claim 6 wherein the superconducting plates are at least peripherally coextensive with the plurality of flux sources.
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) | 1993-01-08 | 1993-07-10 | 1994-01-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1997-01-08 | 1997-07-10 | 1998-01-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2001-01-08 | 2001-07-10 | 2002-01-09 | $7700.00 | Window Closed / Lapsed |