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5466885 |
Magnetically shielding structure
Magnetically shielding structure in which by combining magnetically shielding members of various qualities with each other, its magnetically shielding capability is made to improve, and the greatly...
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5448213 |
Electromagnetic shielding concept for superconducting levitating magnets
A superconducting magnet for a MAGLEV vehicle has flux perturbation shielding rings mounted to the core common with superconducting magnetic coils. These rings resist rapid flux perturbations...
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5448214 |
Open MRI magnet with superconductive shielding
An open magnetic resonance imaging (MRI) magnet having two generally toroidal-shaped superconductive coil assemblies spaced apart by generally spaced-apart and generally parallel...
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5446433 |
Superconducting magnet having a shock-resistant support structure
A superconductive magnet having a superconductive coil located within a thermal shield located within a vacuum enclosure. A cryocooler coldhead's first stage is in solid-conductive thermal contact...
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5444425 |
Flux-trapped superconducting magnets and method of manufacture
A flux-trapped superconducting magnet which is formed of high transition temperature superconducting mixture doped with a magnetic material having a Curie temperature below the transition...
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5436606 |
Feed connection for a superconductive coil
The present invention provides a connection for feeding electricity to a transposed superconductive coil, the coil being placed in a cryostat and comprising a plurality of identical superconductive...
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5436607 |
Open (non-enclosed) magnets for magnetic resonance imaging
An open magnet having two magnet assemblies arranged in a spaced-apart, parallel relationship to define a working space therebetween is provided for magnetic resonance imaging. Each assembly has an...
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5432669 |
Superconducting magnet apparatus for magnetically levitated train
A superconducting magnet apparatus according to the present invention has serially connected superconducting magnets, which are energized and de-energized via disconnectors from a power supply...
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5430423 |
Superconducting magnet having a retractable cryocooler sleeve assembly
A superconducting magnet includes a cryocooler coldhead, a sleeve assembly, and a superconducting coil assembly. The sleeve assembly includes a flexible bellows and a sleeve tube and is attached to...
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5424702 |
Superconducting magnet
A beam member which is installed at diametral portion in a ring shape superconducting coil container for supporting hoop stress of the coil, or a portion of radiant heat shield covering the beam...
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5418512 |
Superconducting magnetic shield
This invention provides a superconducting magnetic shield and a magnetic shielding apparatus including the same, thereby accurately measuring an extremely weak magnetic field such an...
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5413983 |
Millimeter wave ferrite switch utilizing a superconducting switching coil
A tetrahedral junction waveguide switch having a first length of hollow rangular waveguide and a second length of hollow rectangular waveguide adjacent each other with a ferrite rod longitudinally...
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5414399 |
Open access superconducting MRI magnet having an apparatus for reducing magnetic hysteresis in superconducting MRI systems
A MRI superconducting magnet having an open access frame with spaced parallel end plates, a superconducting coil assembly associated with each end plate, and gradient coils associated with each end...
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5410287 |
Open MRI magnet with uniform magnetic field
An open magnetic resonance imaging (MRI) magnet having first and second spaced-apart superconductive coil assemblies each including a toroidal-shaped coil housing containing a superconductive main...
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5410288 |
Persistent superconducting switch for a superconducting magnet for imaging human limbs
A superconductive magnet subassembly has a single unbroken length of superconductive conductor which has a mid portion wound so as to define at least one superconductive magnetic coil and which has...
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5410286 |
Quench-protected, refrigerated superconducting magnet
A superconducting magnet including a superconducting coil assembly having a magnet cartridge, a cryocooler coldhead having a cold stage in thermal contact with the magnet cartridge, and a thermal...
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5404122 |
Superconducting coil apparatus with a quenching prevention means
A superconducting apparatus is provided with windings having superconducting wires wound in a plurality of turns, and a cryostat housing the windings so as to cool the windings in a superconducting...
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5400668 |
Superconducting magnet magnetically levitated transportation apparatus
A superconducting magnet includes a superconducting coil, an inner tank for containing the coil, a shield plate for covering the inner tank, and an outer tank for accommodating the superconducting...
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5396206 |
Superconducting lead assembly for a cryocooler-cooled superconducting magnet
A superconducting magnet lead assembly for a cryocooler-cooled superconducting magnet having a design current of between generally 50 and 250 amperes. A DBCO (Dysprosium Barium Copper Oxide), YBCO...
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5396171 |
Field mapping fixture for a superconducting magnet for imaging human limbs
This invention relates to a field mapping fixture for mapping the magnetic fields of a superconducting magnet. Such structures of this type, generally, are capable of measuring the magnetic fields...
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5396208 |
Magnet system for magnetic resonance imaging
An extremely efficient magnet system having a comparatively large angle of aperture can be obtained for magnetic resonance imaging by a reduction of fields of all orders in a common approach...
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5396205 |
Unspliced superconducting coil device with high stability
A tightly wound superconducting coil device includes a cooling medium vessel, a coil winding disposed in the cooling medium vessel, the coil winding including an unspliced superconducting wire and...
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5394130 |
Persistent superconducting switch for conduction-cooled superconducting magnet
A stable superconducting switch suitable for use in a conduction-cooled superconducting magnet includes a tape wound in a coil with the tape including an Nb 3 Sn conductor sandwiched between...
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5394129 |
Superconducting switch thermal interface for a cryogenless superconducting magnet
A thermal interface for a superconducting switch of a cryogenless superconducting magnet is thermally insulated from and supported by the main magnet support structure and is connected to the cold...
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5393983 |
Magnetic electron lens and elctron microscope using the same
A magnetic electron lens for use in charged particle beam-applied apparatuses such as electron microscopes, the lens having concave lens characteristics in a geometric-optical sense. The magnetic...
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5389907 |
High temperature superconductor multipole correctors for particle accelerators
A method and apparatus for correcting harmonics (multipoles) in high energy particle accelerators using superconducting magnets using a pattern of superconducting bands adjacent to the accelerator...
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5389908 |
Coil of superconducting material for electric appliance and motor utilizing said coil
Coils for electric appliances such as motor or generator are made with a superconducting material, and the width of the coil and the gap between the coils are so adjusted that the passage of...
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5387890 |
Superconductive coil assembly particularly for a current limiter, and a current limiter including such a coil assembly
The present invention relates to a superconductive coil assembly which may be used particularly for a current limiter, the coil assembly comprising a plurality of coaxial cylindrical coils...
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5387891 |
Coil configuration having twisted ends and being made of a conductor with superconducting filaments
A coil configuration includes at least one superconducting coil having an associated coil surface and a conductor containing superconducting filaments and being wound substantially on the coil...
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5387889 |
Superconducting magnet apparatus
A superconducting magnet apparatus such as a superconducting magnet for supplying a levitating force to a magnetically levitating train comprises a closed loop-shaped superconducting coil, a...
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5384197 |
Superconducting magnet coil and curable resin composition used therein
A superconducting magnet coil contains a coil of superconducting wire and a cured product of a curable resin composition with which the coil has been impregnated, the cured product having a thermal...
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5381122 |
Open MRI magnet having a support structure
An open magnetic resonance imaging (MRI) magnet having first and second spaced-apart superconductive coil assemblies connected by spaced-apart structural posts each having a first end portion...
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5379019 |
Apparatus for embossing superconducting tape for use in a superconducting magnet
An apparatus for manufacturing embossed foil for use in controlling the flow of the molten metal tin plating provided in forming laminated tape for use in superconducting magnets utilizing meshing...
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5379018 |
High temperature superconductor magnetic-switch
A magnetic switch for recording the change in position of a magnetic field includes a first object on which is positioned a source of magnetic force for creating a magnetic field and a second...
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5376626 |
Magnetic field operated superconductor switch
A superconducting switch is composed of anisotropic magnetic material. The switch has a first superconducting section, a variable resistive section and a second superconducting section. An external...
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5374913 |
Twin-bore flux pipe dipole magnet
A superconducting magnet for use in a particle accelerator of the synchotron type is disclosed. The disclosed magnet includes twin bores, each having beam pipes therein. A flux pipe is provided...
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5374914 |
Compact magnetic energy storage module
A superconducting compact magnetic energy storage module in which a plurality of superconducting toroids, each having a toroidally wound superconducting winding inside a poloidally wound...
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5372991 |
Oxide superconductive wire, method of manufacturing the same and the products using the same
An oxide superconductive wire is provided by, for example, forming an oxide superconductive layer on a tape-type flexible base. A preliminary compressive strain is applied to the oxide...
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5373275 |
Superconducting magnetic shield and process for preparing the same
The present invention is characterized by a superconducting magnetic shield comprising a seamless, bottomless hollow body or a seamless hollow body having a bottom, the hollow body having a wall...
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5369387 |
Shim lead power coupling assembly for superconducting magnet
A power coupling assembly for superconducting magnets includes a conduit with insulating tubes around each power lead, with the tubing passing through a plug at the upper end of the conduit and...
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5363077 |
MRI magnet having a vibration-isolated cryocooler
A magnetic resonance imaging magnet includes a cryocooler penetration assembly and a superconducting coil assembly. The cryocooler penetration assembly has a thermal station within a thermal box...
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5361055 |
Persistent protective switch for superconductive magnets
A persistent switch system for protecting a large superconducting magnet coil during quench while providing the necessary different resistances needed for operation of the system in coil charging,...
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5361054 |
Magnet system
A magnet system for nuclear spin resonance spectroscopy, in particular for in-vivo spectroscopy and tomography on a limb or a shoulder of a human body (partial-body tomography) comprising a...
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5359310 |
Ultrashort cylindrical shielded electromagnet for magnetic resonance imaging
A superconducting magnet suitable for use in magnetic resonance imaging applications is disclosed. A plurality of driving coils are located around a cylindrical bore, for generating an axial...
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5359308 |
Vehicle energy management system using superconducting magnetic energy storage
An energy management system for a hybrid internal combustion and electric vehicle provides a highly energy-efficient and yet highly agile hybrid vehicle. The vehicle includes an internal combustion...
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5353000 |
Shuntable low loss variable current vapor cooled leads for superconductive loads
A shuntable low loss variable current vapor cooled lead (VCVCL) configuration delivers current to and from a superconductive load, such as a superconductive magnet, immersed in a cryogenic liquid...
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5349297 |
Combined self shielded gradient coil and shimset
The magnetic field assembly of a magnetic resonance imaging device includes an annular superconducting magnet (10) which is mounted within a toroidal vacuum vessel (24). A cylindrical member (26)...
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5347251 |
Gas cooled high voltage leads for superconducting coils
A voltage divider for high voltage vapor cooled leads for superconducting magnet systems. Power connections to large superconducting magnets often carry potentials in the range of 5 to 10...
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5345208 |
Pole face design for a C-shaped superconducting magnet
This invention relates to a pole face design for superconducting magnets of the type that are C-shaped. Such structures of this type, generally, employ pole faces which homogenize the magnet field...
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5343182 |
Magnet device for generating static magnetic field in MRI
A magnet device for MRI system is provided with a main coil assembly including a plurality of ring-like main coils wound around a reel element and a sub-coil assembly including at least one pair of...
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