Patent US3667029A successfully refreshed from Google Patents.
US3667029A
Expired / Lapsed
US
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Method and means for charging or discharging superconducting windings
Assignee: Individual
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Filing: 1970-04-15
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Granted: 1972-05-30
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Expires: 1990-04-15
Abstract
Abstract A winding of superconducting material is charged by electrically shorting the winding with a hard Type-II series superconducting material and cooling the winding and shorting material to a superconducting temperature. A magnetic flux is generated to penetrate the shorting material to establish therein fluxoids and a temperature gradient is established across the shorting material to cause motion of the fluxoids across the shorting material into the magnetic circuit of the winding to effect charging or discharging thereof.
Inventors
- 👤 Wilfried H Bergmann
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 04:48
CPC Classifications
H; H01; H01F; H01F6/00; H01F6/006; Y; Y10; Y10S; Y10S336/00; Y10S336/01; Y10S505/00; Y10S505/825; Y10S505/851; Y10S505/869; Y10S505/87
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
66 words
A method for charging a winding of superconducting material comprising electrically shorting said winding with a hard Type-II series superconducting material, cooling said winding and shorting material to an electrically-superconducting temperature, generating magnetic flux to penetrate said shorting material, and establishing a temperature gradient across said shorting material to cause motion of said magnetic flux across said shorting material into the magnetic circuit of said winding.
Claim 2
Independent Claim
66 words
A method for charging a winding of superconducting material comprising electrically shorting said winding with a hard Type-II series superconducting material, cooling said winding and shorting material to an electrically-superconducting temperature, generating magnetic flux to penetrate said shorting material, and establishing a temperature gradient across said shorting material to cause motion of said magnetic flux across said shorting material into the magnetic circuit of said winding.
Claim 3
Dependent Claim
51 words
The method of claim 1 wherein said magnetic flux generation comprises mounting a magnet to dispose the complementary poles thereof on opposing sides of said shorting material, and the flux between said poles has a value greater than the lower critical field value of said shorting material to establish therein fluxoids.
Claim 4
Dependent Claim
25 words
The method of claim 1 wherein said shorting of said winding is effected in a low field region of the magnetic circuit of said winding.
Claim 5
Independent Claim
54 words
A method for charging a closed winding of hard Type-II series superconducting material comprising cooling said winding to an electrically-superconducting temperature, generating magnetic fluxoids in a portion of said material, and generating a temperature gradient across said portion of said material to impart motion to said fluxoids into the magnetic circuit of said winding.
Claim 6
Independent Claim
54 words
A method for charging a closed winding of hard Type-II series superconducting material comprising cooling said winding to an electrically-superconducting temperature, generating magnetic fluxoids in a portion of said material, and generating a temperature gradient across said portion of said material to impart motion to said fluxoids into the magnetic circuit of said winding.
Claim 7
Dependent Claim
25 words
The method of claim 4 wherein said fluxoids are generated in a portion of said material in a minimum magnetic field region of said winding.
Claim 8
Dependent Claim
57 words
The method according to claim 4 wherein generating magnetic fluxoids comprises mounting a magnet to position the complementary poles thereof on opposing sides of said portion of said material, the flux between said poles having a value greater than the lower critical field value of said material to penetrate said portion of material and generate fluxoids therein.
Claim 9
Dependent Claim
59 words
The method according to claim 6 further including discharging said winding comprising interchanging the position of said complementary poles of said magnet relative said opposing sides of said portion of said material to reverse the polarity of magnetic flux through said portion of said material while maintaining the sense of said temperature gradient across said portion of said sample.
Claim 10
Dependent Claim
65 words
The method according to claim 6 further including discharging said winding comprising positioning the complementary poles of said magnet to overlap said portion of said material and the magnetic circuit of said winding to provide flux flow therefrom through said portion of said material and the magnetic circuit of said winding, and reversing the sense of said temperature gradient across said portion of said material.
Claim 11
Independent Claim
81 words
An apparatus for charging and discharging a winding of superconducting material comprising hard Type-II series superconducting material electrically shorting said winding, means for cooling said winding and said shorting material to superconducting temperature, magnet means including complementary poles mounted on opposing sides of said shorting material to produce therein a magnetic flux, and heating means cooperatively disposed relative said shorting material to effect a temperature gradient thereacross and impart motion to said magnetic flux relative the magnetic circuit of said winding.
Claim 12
Independent Claim
81 words
An apparatus for charging and discharging a winding of superconducting material comprising hard Type-II series superconducting material electrically shorting said winding, means for cooling said winding and said shorting material to superconducting temperature, magnet means including complementary poles mounted on opposing sides of said shorting material to produce therein a magnetic flux, and heating means cooperatively disposed relative said shorting material to effect a temperature gradient thereacross and impart motion to said magnetic flux relative the magnetic circuit of said winding.
Claim 13
Dependent Claim
39 words
The apparatus of claim 9 wherein said complementary poles of said magnet means are sized and positioned relative said shorting material to provide a magnetic flux therefrom passing into said shorting material and the magnetic circuit of said winding.
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) | 1975-05-30 | 1975-11-29 | 1976-05-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-05-30 | 1979-11-29 | 1980-05-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-05-30 | 1983-11-29 | 1984-05-30 | $7700.00 | Window Closed / Lapsed |