US4680666A
Expired / Lapsed
US
⏱️ 0.0 years remaining
MR magnet wiring harness circuit
Assignee: General Electric Co
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Filing: 1986-04-07
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Granted: 1987-07-14
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Expires: 2006-04-07
Abstract
Abstract A wiring harness for a shielded superconducting magnetic resonance magnet in which resistors are connected in parallel with pairs of symmetrically connected coils. The symmetric nature of the magnetic field can be maintained during a quench since coils placed symmetrically about the plane of symmetry always conduct the same current, eliminating unbalance forces that are normally associated with a quench of a shielded magnet.
Inventors
- 👤 Pedro A. Rios
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 18:58
CPC Classifications
H; H01; H01F; H01F5/00; G; G01; G01R; G01R33/00; G01R33/20; G01R33/28; G01R33/38; G01R33/381; G01R33/3815; H01F6/00; H01F6/02; Y; Y10; Y10S; Y10S505/00; Y10S505/825; Y10S505/851
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
70 words
A wiring harness circuit for a shielded superconducting magnetic resonance magnet comprising: a plurality of coils of superconductor wire connected in series with one another, said coils symmetrically arranged about a plane of symmetry; and a plurality of resistors, each said resistor connected in parallel with a symmetric pair of coils so that a quench in any one coil results in the same current flow in the coil symmetric thereto.
Claim 2
Dependent Claim
70 words
A wiring harness circuit for a shielded superconducting magnetic resonance magnet comprising: a plurality of coils of superconductor wire connected in series with one another, said coils symmetrically arranged about a plane of symmetry; and a plurality of resistors, each said resistor connected in parallel with a symmetric pair of coils so that a quench in any one coil results in the same current flow in the coil symmetric thereto.
Claim 3
Dependent Claim
72 words
A wiring harness circuit for a shielded superconducting magnetic resonance magnet comprising: a plurality of coaxial coils of superconductor wire connected in series with one another, said coils symmetrically arranged about an axial plane of symmetry; and a plurality of resistors, each said resistor connected in parallel with a; symmetric pair of coils so that a quench in any one coil results in the same current flow in the coil symmetric thereto.
Claim 4
Dependent Claim
72 words
A wiring harness circuit for a shielded superconducting magnetic resonance magnet comprising: a plurality of coaxial coils of superconductor wire connected in series with one another, said coils symmetrically arranged about an axial plane of symmetry; and a plurality of resistors, each said resistor connected in parallel with a; symmetric pair of coils so that a quench in any one coil results in the same current flow in the coil symmetric thereto.
References Cited (Backward Citations)
US3263133A
Cited
US3488561A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1990-07-13 | 1991-01-12 | 1991-07-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1994-07-13 | 1995-01-12 | 1995-07-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1998-07-13 | 1999-01-12 | 1999-07-14 | $7700.00 | Window Closed / Lapsed |