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7616083 |
Resin-impregnated superconducting magnet coil comprising a cooling layer
A resin-impregnated superconducting magnet coil comprising a number of turns of superconducting wire ( 14 ) embedded within a resin ( 16 ) having an outer filler layer ( 18 ) composed of the resin,...
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7609139 |
Split Florida-helix magnet
An electromagnet having at least one access port oriented perpendicularly to the electromagnet's central axis. The magnet has a conventional helical winding along its central axis. However, at some...
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7583171 |
Magnetic field generator, photomagnetic information storing system, and photomagnetic information storing apparatus
The present invention efficiently radiates heat generated by a coil while suppressing a decrease in the efficiency of generation of magnetic fields caused by an eddy current. The present invention...
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7557577 |
Water-soluble paramagnetic substance reducing the relaxation time of the coolant in an MRI system
The invention relates to the use of a water-soluble paramagnetic substance, in particular a magnetic resonance contrast medium, to reduce the magnetic resonance relaxation time of a coolant for...
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7525404 |
Moisture exhausting membrane in electrical solenoid
A vent assembly is provided for allowing internal contaminants to exit a solenoid. The vent assembly includes a vent membrane interposed between a gasket and a support. The support may have a...
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7305845 |
System and method for de-icing recondensor for liquid cooled zero-boil-off MR magnet
A system and method for de-icing a recondensor includes at least one heating element configured to melt iced particles from a recondensing system. A power delivery circuit is included configured to...
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7218195 |
Method and apparatus for magnetizing a permanent magnet
A magnetizing coil unit and a method of making a magnetizing coil unit is provided. The coil includes a solenoid coil having a coiled copper sheet in which the width of the copper sheet is equal to...
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7170377 |
Superconductive magnet including a cryocooler coldhead
A zero boiloff cryogen cooled recondensing superconducting magnet assembly including superconducting magnet coils suitable for magnetic resonance imaging including a cryogen pressure vessel to...
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6970062 |
Cooling of a MRI system
A magnetic resonance imaging (MRI) system having an open superconducting magnet system ( 1 ) includes a number of horizontally oriented superconducting coils ( 3–10 ) in a cryogenic container (...
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6924723 |
Cooling system for magnetic field generating device
A magnetic field generating device comprising a frame about which a current carrying coil of conductor is wound. The frame preferably includes spaced-apart side panels and an auxiliary...
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6876288 |
Transverse field bitter-type magnet
A new type of coil magnet in which the plane of each turn of the conducting coil is rotated with respect to the central axis. This results in the induced magnetic field being oriented off the...
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6847278 |
Magnetic device
A magnetic device which is highly durable, reliable, and safe without being damaged when a magnetic filed is applied. The magnetic device includes a cooling device having a cold head refrigerated...
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6816051 |
Superconducting magnet and magnetic resonance imaging apparatus using the same
Effect of vibration of a refrigerator on a superconducting coil is reduced to reduce disturbance in an image. A coolant tank for supplying a coolant to coil containers is provided separately from...
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6741152 |
Directly cooled magnetic coil, particularly a gradient coil, and method for manufacturing conductors therefor
A directly cooled magnetic coil, particularly a gradient coil for a magnetic resonance apparatus, has the conductors forming the windings which are provided with an inner cooling channel for...
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6489873 |
Temperature control system for a permanent magnetic system
A temperature control system for a permanent magnetic assembly in a permanent magnetic system comprises thermoelectric heat pumping devices which are in thermal contact with a yoke of the permanent...
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6441711 |
Magnetizing magnet
A high temperature superconductor (HTSC) 5 is magnetized between drive coils 1,2 forming poles of a magnet connected by an iron yoke 9 by relative movement of a vacuum insulated cryostat 4 ...
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6396376 |
Apparatus and method for a superconductive magnet with pole piece
A magnet, such as an open magnetic-resonance-imaging (MRI) magnet) has a first assembly including a superconductive main coil and a magnetizable pole piece which, during magnet operation, has a...
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6396377 |
Liquid cryogen-free superconducting magnet system
A superconducting magnet assembly having two individual magnetic coils contained in separate vacuum jackets with a radiation shield between each magnet and its respective vacuum jacket. Each magnet...
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6323749 |
MRI with superconducting coil
A magnetic resonance imaging magnet for examining a patient comprises ferromagnetic pole pieces defining a patient-receiving gap for examining a patient. Coil assemblies for producing a magnetic...
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6246308 |
Superconductive magnet including a cryocooler coldhead
A magnet, such as an open or closed magnet, has a first assembly with at least one superconductive main coil and with a first vacuum enclosure enclosing the main coil(s). A first cryocooler...
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6239680 |
Magnetic field stabilization method, magnetic field generating apparatus and magnetic resonance imaging apparatus
In order to provide a magnetic field stabilization method, magnetic field generating apparatus and magnetic resonance imaging apparatus that is not affected by the temperature distribution in an...
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6163241 |
Coil and method for magnetizing an article
A coil for magnetizing an article. The coil includes a cooling coil component and an electric coil component. An elongate electric coil component is placed with its center along a bobbin, wherein...
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6107905 |
Superconducting magnet apparatus
A superconducting magnet apparatus including a superconducting coil for generating a magnetic field, a radiation shield surrounding the superconducting coil, a refrigerator for cooling the...
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6081179 |
Superconducting coil
A structure of a superconducting coil capable of improving cooling efficiency is provided. The superconducting coil is formed by stacking a plurality of double pancake coils with each other. The...
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6011456 |
Superconducting magnet split cryostat cryogen ride-through reserve
An open architecture recondensing superconducting magnet utilizing an upper and lower cryogen vessel connected by a passageway which extends above the bottom of upper cryogen vessel to discontinue...
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6002315 |
Inner cold-warm support structure for superconducting magnets
A superconductor device which including a magnet coil assembly and support structures. The magnet coil assembly consists of superconducting wire which is encased in a composite structure along with...
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5936502 |
Magnet coils for MRI
An MR imaging apparatus includes a magnet assembly having two generally opposed pole pieces. Current flowing in driver coils associated with each pole pieces generates a magnetic field in the...
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5918470 |
Thermal conductance gasket for zero boiloff superconducting magnet
A recondensing zero boiloff superconducting magnet assembly utilizing a cryocooler with a compressible indium gasket positioned between the cryocooler and the recondenser and with the gasket...
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5889456 |
NMR measuring device having a cooled probe head
An NMR measuring device contains an NMR probe head (10a) having an NMR receiver coil (11), and the probe head can be supplied via a cryogenically insulated transfer conduit (9) with coolant from a...
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5852393 |
Apparatus for polarizing rare-earth permanent magnets
Apparatus for polarizing a multipole permanent magnet having a main surface is disclosed. The apparatus includes a support member for supporting the magnet; and conductive tubular elements in the...
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5828280 |
Passive conductor heater for zero boiloff superconducting magnet pressure control
A passive non-electric pressure control system for a superconducting magnet cryogen vessel to maintain internal pressure above the outside pressure to avoid cryopumping utilizes a passive thermal...
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5659278 |
Superconducting magnet device, magnetizing device and method for superconductor
A superconducting magnet device and magnetizing device for superconductor including a coil provided around the superconductor; a current supply line connected to the coil and a power source and...
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5635838 |
Method for operating a superconductive magnet
A method for operating a superconductive magnet having a superconductor. The magnet is ramped to generally the design current. After that, the magnet is brought to an annealing temperature which is...
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5625331 |
Superconducting deflection electromagnet apparatus
A superconducting deflection electromagnet apparatus for deflecting an electron beam includes a liquid helium reservoir 21 disposed outside of the magnetic shield 11 surrounding the cryostat 4...
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5598137 |
Coil for high-voltage transformer
In order to achieve improved mechanical properties for a coil (1), it is proposed to structure a first electroconductive winding (3) of the coil (1) as a coil former. This coil has a first...
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5574001 |
Ceramic superconducting lead resistant to breakage
A superconductive lead assembly for a superconductive device (e.g., magnet) cooled by a cryocooler coldhead having first and second stages. A first ceramic superconductive lead has a first end...
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5566747 |
Method of cooling a coil
A method of cooling the coil of an electromagnetic riveter includes bringing a transducer into contact with the coil and transferring heat from the coil to the transducer by conduction. The heat is...
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5537829 |
Cryostat assembly
A cryostat assembly having an outer vessel within which is provided substantially upright inner vessel for containing an item, such as an electromagnet, to be cooled. The inner vessel is suspended...
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5535919 |
Apparatus for dispensing heated fluid materials
An electromagnetic dispenser for dispensing viscous heated fluids, such as hot melt adhesives. A fixed pole extends from a fluid chamber. The coil is located about a portion of the fixed pole and...
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5462054 |
Permanent magnet arrangement
A permanent magnet assembly used for creating a uniform magnetic field across a portion of an air gap has a permanent magnet grouping, including a first, principal magnet, a pole piece contacting...
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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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5407003 |
Apparatus for cooling a coil
An apparatus for cooling the coil of an electromagnetic riveter includes a transducer which is brought into intimate contact with the coil to transfer heat from the coil to the transducer by...
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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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5365211 |
Wound coil with integral cooling passages
A magneto repulsion electrical tape wound coil has been developed with improved current distribution and improved heat transfer. The coil is easy and is expensive to manufacture and simple to...
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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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5296828 |
Coil for magnetic repulsion punch
A tape wound coil is provided, for use in magnetic repulsion punching, that has a plurality of slits therein which allow circulation of coolant therethrough. This coil is made of thin copper foil,...
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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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5289009 |
Charged particle beam system and cooling device, a coil comprising a cooling member and a cooling member for use in such a charged particle beam system
A charged particle beam system utilizes a box-shaped cooling member accommodating the lens in order to cool the particle-optical lenses. The cooling medium is circulated between the wall of the...
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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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