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5343180 |
Coil structure and coil container
There is disclosed a coil structure which can be rapidly energized or excited, and which reduces the generation of heat in a coil container by an eddy current due to a dynamic disturbance such as...
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5340943 |
Method of using oxide superconducting conductor
Disclosed herein is a method of using an oxide superconducting conductor in a state including a transition region between a superconducting state and a normal conducting state, i.e., a flux flow...
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5339061 |
Iron-free transformer
An iron-free transformer in which electrical energy is transferred from a primary winding to a secondary winding without any electrical connection or inductive coupling therebetween. The...
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5339062 |
High power energy transfer system utilizing high temperature superconductors
Electrical energy is transferred or switched by selectively holding off the coupling of a magnetic field to a secondary inductive element (a coil) through a path which contains a high temperature...
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5334965 |
Superconductive material and magnetic field for damping and levitation support and damping of cryogenic instruments
A superconductive load bearing support without a mechanical contact and vibration damping for cryogenic instruments in space. The levitation support and vibration damping is accomplished by the use...
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5333464 |
Cold head sleeve and high-TC superconducting lead assemblies for a superconducting magnet which images human limbs
A cold head sleeve and superconducting lead assembly including a cryocooler and a tube operatively connected to the cryocooler. A first and second heat station are operatively connected to the...
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5334964 |
Current limiting choke coil
A device having cores of metal oxide ceramic (for example, Y-Ba-Cu-O) for limiting a short circuit current in power supply systems. The concept provides that a choke core, when operated at a rated...
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5332988 |
Removable coil form for superconducting nmr magnets and a method for its use
A superconducting coil is mounted on a permanent non-magnetic coil form by first winding an unreacted wire onto a temporary coil form made of refractory materials which can be assembled and...
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5332987 |
Large gap magnetic suspension system with superconducting coils
A magnetic suspension system and a procedure for operating the system employ a superconducting magnet having a lift coil assembly for developing a magnetic field to interact with the magnetic field...
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5329266 |
Magnet assembly
An active shield magnet has a plurality of screening coils which each have a small number of turns in comparison with the number of turns of the main magnet coil assemblies and which are connected...
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5329165 |
Selectively switchable superconducting electromagnetic shield
A selectively controllable, direction-, amplitude- and/or frequency-specific superconducting shield (10) is provided which includes a multiply-connected superconducting shield (12) adapted to...
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5325080 |
Superconducting coil apparatus and method of manufacturing the same
A superconducting coil apparatus comprises a cryostat, a superconducting coil body contained in a cryostat and including a surface portion of an epoxy resin layer, and an interposing member...
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5319333 |
Superconducting homogeneous high field magnetic coil
The invention concerns a superconducting high field magnetic coil for the production of magnetic field with one or more approximately rotationally symmetric hollow cylindrically shaped winding...
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5317296 |
Demountable conduction cooled current leads for refrigerated superconducting magnets
This invention relates to demountable conduction cooled current leads for refrigerated superconducting magnets. Such structures of this type generally either allow the warm section of the current...
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5315276 |
Compact superconducting magnet for magnetic resonance imaging
A C-shaped superconducting magnet for use in magnetic resonance imaging (MRI) equipment is disclosed. The magnet includes flux concentrators on opposing sides of the gap, for generating a vertical...
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5315277 |
Vertically rippled superconductive magnetic energy storage
A superconducting energy storage magnet is constructed for mounting in relatively shallow trenches or tunnels to provide superconductive energy storage for applications such as power system load...
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5310705 |
High-field magnets using high-critical-temperature superconducting thin films
High-field magnets fabricated from high-critical-temperature superconducting ceramic (HTSC) thin films which can generate fields greater than 4 Tesla. The high-field magnets are made of stackable...
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5306701 |
Superconducting magnet and fabrication method
A method of trapping a field in a block of superconductor material, includes providing (i) a block of material defining a bore, (ii) a high permeability core within the bore that defines a low...
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5307037 |
Shim lead assembly with flexible castellated connector for superconducting magnet
A flexible castellated joint is included in the shim lead assembly electrically connecting the cryostat pressure vessel and the outer vacuum vessel in a superconducting magnet to accommodate...
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5304972 |
Superconducting magnet apparatus having circulating path for coolant
A superconducting coil incorporated in the superconducting magnet apparatus of the invention is shaped annular or cylindrical, and thus surrounds a photographing field. The coil has an axis which...
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5302928 |
Superconducting current leads for a cryogenless superconducting magnetic energy storage device
This invention relates to current leads for a superconducting magnet system of the type that are constructed of two-stages. Such structures of this type, generally, operate from ambient temperature...
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5298875 |
Controllable levitation device
Apparatus for levitating a magnetic body. The apparatus includes a structure (10) comprised of a material that is superconductive below a critical temperature. The structure includes at least one...
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5298679 |
Current lead for cryostat using composite high temperature superconductors
A vapor cooled current lead for a superconducting device located in a cryostat includes a normal conductor section extending from ambient conditions inward to an intermediate point, and a composite...
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5296812 |
Superconducting magnet assembly for MRI and MRI diagnostic apparatus
A superconducting means for MRI including seven to nine small superconducting coils situated in such a manner that the number of turns of these coils becomes progressively greater towards the...
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5293524 |
Uniformly wound superconducting coil and method of making same
A coil of superconducting wire for a superconducting magnet having a relaely dense and uniformly spaced winding to enhance the homogeneity and strength of the magnetic field surrounding the coil...
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5291169 |
Open architecture magnetic resonance imaging superconducting magnet assembly
An open architecture Magnetic Resonance Imaging Magnet with a pair of spaced annular superconducting magnet assemblies utilizing a cantilevered main magnet coil and correction magnet coil within...
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5291168 |
Connector cooling and protection for power coupling assembly for superconducting magnets
Power couplings are provided from outside the shell of a superconducting magnet through the intervening space and through the cryogen pressure vessel to the magnet coils within the vessel. The...
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5289150 |
Method and apparatus for superconducting trapped-field energy storage and power stabilization
Magnetic energy is stored in trapped form in a wide variety of superconducting masses such as granules, particulates, foil, and thin film to be released as electrical energy by magnetically...
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5289128 |
Superconducting gradient shield coils
An examination region (12) is defined within the bore of a superconducting magnet assembly (10). An RF coil (22) and gradient magnetic field coils (14) are disposed within the bore of the...
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5285181 |
Superconducting winding and support structure
Composite superconducting windings of the type that have superconductor wires wound with glass cloth, an array of axial insulated copper wires, copper foil straps of expanded metal or perforated...
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5280259 |
Superconductive magnet device with transparent pipes for accommodating field correction shims
A superconductive magnet device includes a superconductive magnet body and non-magnetic pipes made of a transparent non-magnetic material. Preferably, the magnetic shims for compensating for the...
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5280247 |
Filamentary cold shield for superconducting magnets
An examination region (12) is defined within the bore of a superconducting magnet assembly (10). An RF coil (22) and gradient magnetic field coils (14) are disposed within the bore of the...
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5278380 |
Superconducting magnet system with inductive quench heaters
A superconducting magnet coil is protected from local damage due to quenching by inductively driven heaters formed by heater strips embedded in the coil and connected in closed loops. A cold bypass...
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5278533 |
Coil for use in charged particle deflecting electromagnet and method of manufacturing the same
A coil for use in a deflecting electromagnet in which two coil end portions are bent as well as a method of manufacturing the same. In the coil, a plurality of coil units 4 in each of which two...
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5276419 |
Air-code magnetic flux guide
A device to guide, shape, contain, or concentrate magnetic flux comprises a tube or conduit made of superconducting material to constrain the path of magnetic flux and guide it to a target volume....
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5276399 |
Magnet system with superconducting field coils
In a magnet system with two coil systems of different mean diameter arranged coaxially with respect to the longitudinal axis of the system defined by the direction of the field in the homogeneity...
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5267091 |
Levitating support and positioning system
A levitating support and positioning system (10) is provided for orienting an electromagnetic energy reflecting assembly (40). System (10) includes a reflective member (60) supported by an annular...
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5266913 |
Screened electromagnetic coil of restricted length having optimized field and method
A primary gradient coil and a screen coil for use with the primary coil are constructed to create a substantially null field adjacent to the screen coil and a substantially distortion free linear...
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5256993 |
Coil containment vessel for superconducting magnetic energy storage
This invention relates to superconducting magnetic storage (SMES) apparatus made of repetitious modular units or modules which support a superconducting electrical magnet and a fluid and which are...
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5247272 |
Dipole coil and structure for use in the manufacture thereof
A dipole coil for use in a superconducting electromagnet employs two saddle-shaped coils in a diametrically opposed relationship. Each of the saddle-shaped coils includes central linearly extending...
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5247271 |
Superconducting solenoid coil
A superconducting apparatus including a superconducting solenoid coil made of a superconducting wire wound around a bobbin. The superconducting wire has a superconductor having a rectangular...
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5239276 |
Superconductive magnet coil arrangement
A superconductive magnet coil arrangement for generating a homogeneous magnetic field in a volume under examination, comprising a magnet coil having two first windings of a superconductive wire...
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5237298 |
Superconducting energy storage magnet
A superconducting magnet is formed having composite conductors arrayed in coils having turns which lie on a surface defining substantially a frustum of a cone. The conical angle with respect to the...
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5237300 |
Support structure for actively shielded superconducting magnets
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...
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5231366 |
Superconducting magnetic field generating apparatus and method of producing the same
A superconducting magnetic field generating apparatus, and coil, a superconducting wire, a method of producing a coil and a method of connecting a superconducting wire which are suitable for such a...
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5227756 |
Modulation of magnetic fields formed by solenoids
Temporal and spatial modulation of magnetic fields created around solenoids and within their hollow is effected using specially configured and movable superconducting elements as well as switchable...
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5227755 |
Winding configuration for a cryomagnet
Winding arrangements for cryomagnets have a winding of superconducting wire (12) connected in parallel to a winding of normally conducting wire (11) which, in the event of a quench, conducts the...
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5227754 |
Magnetic flux transmission system
A system for transmitting magnetic flux distance from a flux generating device uses a flux transmission unit for transmitting the flux that has a special portion made of superconductive material....
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5220800 |
NMR magnet system with superconducting coil in a helium bath
In an NMR magnet system for generating a highly homogeneous magnetic field of high field strength, with at least one superconducting magnet coil which is arranged in a first chamber of a cryostat...
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5210512 |
Magnet assembly
A magnet assembly suitable for use in magnetic resonance imaging has a first superconducting coil assembly for generating a first magnetic field and a second superconducting coil assembly for...
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