US5237300A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Support structure for actively shielded superconducting magnets
Assignee: General Electric Co
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Filing: 1992-08-03
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Granted: 1993-08-17
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Expires: 2012-08-03
Abstract
Abstract A cantilevered trapezoidal-toroidal structure is provided in an active magnetic shielding system for a superconducting magnet to support the bucking magnet coils in spaced relationship to the main magnet coils.
Inventors
- 👤 Oluwasegun O. Ige
- 👤 John J. Wollan
- 👤 Yannis P. Tsavalas
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 00:29
CPC Classifications
G; G01; G01R; G01R33/00; G01R33/20; G01R33/28; G01R33/38; G01R33/381; G01R33/3815; G01R33/42; G01R33/421; G01R33/3802
Claims Analysis
Total Claims: 17
Claim 1
Independent Claim
121 words
In an active magnetic shielding system for a superconducting magnet assembly located in a cryostat with at least one main magnet coil supported by a tubular drum and a plurality of bucking magnet coils supported concentrically about the drum and at a distance from the at least one main magnet coil, a support assembly for the bucking magnet coils comprising: an annular support for each of said bucking coils extending in an axial direction between end regions thereof; a plurality of radial struts secured at one end to said drum and at the remote end to one end region of said coil supports, providing a cantilevered support to the coil supports; and a plurality of rods extending between said coil supports.
Claim 2
Dependent Claim
121 words
In an active magnetic shielding system for a superconducting magnet assembly located in a cryostat with at least one main magnet coil supported by a tubular drum and a plurality of bucking magnet coils supported concentrically about the drum and at a distance from the at least one main magnet coil, a support assembly for the bucking magnet coils comprising: an annular support for each of said bucking coils extending in an axial direction between end regions thereof; a plurality of radial struts secured at one end to said drum and at the remote end to one end region of said coil supports, providing a cantilevered support to the coil supports; and a plurality of rods extending between said coil supports.
Claim 3
Dependent Claim
25 words
A superconducting magnet coil assembly of claim 1 wherein said struts extend outward from said drum at an angle to the axis of said drum.
Claim 4
Dependent Claim
32 words
A superconducting magnet coil assembly of claim 2 wherein said spacing rods are secured to locations at the end regions of said coil supports proximate to where said radial struts are secured.
Claim 5
Dependent Claim
44 words
A superconducting magnet coil assembly of claim 3 wherein said plurality of bucking coil magnets is two bucking coil magnets, and said struts extend in opposite directions from the axial center of said drum, forming a toroidal surface with a substantially trapezoidal cross section.
Claim 6
Dependent Claim
47 words
A superconducting magnet coil assembly of claim 4 wherein a fastening member with at least one jaw is secured to the end of said struts to surround an end region of each of said coil supports, and means to fasten said fastening members to said coil supports.
Claim 7
Dependent Claim
17 words
A superconducting magnet coil assembly of claim 5 wherein said spacing rods extend between said fastening members.
Claim 8
Dependent Claim
33 words
A superconducting magnet coil assembly of claim 6 wherein said fastening member is generally U-shaped and includes a pair of opposed jaws dimensioned to fit around said end region on said coil supports.
Claim 9
Dependent Claim
37 words
A superconducting magnet coil assembly of claim 2 wherein groups of said struts extend in opposite axial directions to define, in combination with said rods and said drum, a substantially trapezoidal cross section between adjacent coil supports.
Claim 10
Dependent Claim
19 words
A superconducting magnet coil assembly of claim 8 wherein said angle is in the order of 35° to 45°.
Claim 11
Dependent Claim
31 words
A superconducting magnet coil assembly of claim 8 wherein the width of said struts in the azimuthal direction is large compared to the thickness of said struts in the radial direction.
Claim 12
Dependent Claim
27 words
A superconducting magnet coil assembly of claim 1 wherein said support structure forms a truss system which provides a substantially trapezoidal-toroid support structure for said coil supports.
Claim 13
Dependent Claim
18 words
A superconducting magnet coil assembly of claim 11 wherein said plurality of bucking coils is two bucking coils.
Claim 14
Dependent Claim
29 words
A superconducting magnet coil assembly of claim 12 wherein said trapezoidal-toroid support structure extends outward from the central region of said drum, and the trapezoid is an isosceles trapezoid.
Claim 15
Dependent Claim
22 words
A superconducting magnet coil assembly of claim 11 wherein there are in the order of ten struts connected to each coil support.
Claim 16
Dependent Claim
26 words
A superconducting magnet coil assembly of claim 14 wherein each strut is spaced from adjacent struts leaving axial openings between adjacent struts about said coil support.
Claim 17
Dependent Claim
32 words
A superconducting magnet coil assembly of claim 11 wherein one end of each of said struts and one end of each of said rods are contiguous and secured to a fastening member.
References Cited (Backward Citations)
US4595899A
Cited
US4896128A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1996-08-16 | 1997-02-15 | 1997-08-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2000-08-16 | 2001-02-15 | 2001-08-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2004-08-16 | 2005-02-15 | 2005-08-17 | $7700.00 | Window Closed / Lapsed |