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7383688 |
Superconducting device having a cryogenic system and a superconducting switch
The superconducting device has a cryogenic system to whose first refrigerant there is thermally coupled a superconducting unit and a superconducting switching path, which is electrically connected...
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7350363 |
Pulse tube refrigerator sleeve
The present invention relates to pulse tube refrigerators for recondensing cryogenic liquids. In particular, the present invention relates to the same for magnetic resonance imaging systems. In...
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7330029 |
Cryostat configuration with thermally compensated centering
A cryostat configuration has at least three centering elements ( 4 ) which are distributed about the periphery of a cryocontainer ( 1 ). Each end ( 6 ) of the centering elements ( 4 ) facing away...
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7323963 |
MRI superconductive magnet
An object of the present invention is to provide a MRI superconductive magnet enables sharp images representing patients' health states to be produced. [Means for Achieving the Object] A MRI...
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7318318 |
Superconducting magnet system with refrigerator
A cryostat ( 1 ) with a first helium tank ( 4 ) which contains helium at an operating temperature T 1 <3K, and a second helium tank ( 2 ) which is connected to the first helium tank ( 4 ) and...
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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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7305836 |
Cryogenic container and superconductivity magnetic energy storage (SMES) system
A cryogenic container includes an inner vessel for containing a cryogenic fluid, and an outer vessel for insulating the cryogenic fluid from the environment. The inner vessel includes a...
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7290396 |
Cryogenic biological preservation unit
A cryogenic biological preservation unit having a removable lid and an integrated cryocooler positioned apart from, or within a fixed portion of, the lid and which provides refrigeration to the...
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7287388 |
Cryostat having an integrated staining station
A cryostat ( 1 ) having a sealable housing ( 2 ) is described. The housing ( 2 ) encloses a coolable cryostat chamber ( 3 ), and a refrigeration device ( 4 ), a control system ( 5 ) and a power...
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7263841 |
Superconducting magnet system with supplementary heat pipe refrigeration
A superconducting magnet system wherein a cryocooler provides refrigeration to a cryogenic shield for the superconducting magnet and a heat pipe extends from the cryogenic shield to a cryogen...
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7257953 |
Apparatus and method for preparing frozen tissue specimens
An apparatus and method for preparing frozen tissue specimens includes a base supporting a pair of rotary motion platforms and a center platform. The rotary motion platforms are movable from an...
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7240497 |
Cryostat having a heating plate
A cryostat ( 1 ) having a sealable housing ( 2 ) is described, the housing ( 2 ) enclosing a coolable cryostat chamber ( 3 ). For cooling the cryostat chamber ( 3 ), a refrigeration device ( 4 ), a...
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7240496 |
Superconductive device comprising a refrigeration unit, equipped with a refrigeration head that is thermally coupled to a rotating superconductive winding
The invention relates to a superconductive device containing a rotor that can be rotated about an axis of rotation and that comprises a superconductive winding in a winding support. Said winding...
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7234308 |
Cold mold
A metallic, reusable mold with one or more wells. The mold is kept within a cryostat at low temperature. The mold is removed from the cryostat and a tissue specimen is placed into a well within the...
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7222490 |
NMR spectrometer with refrigerator cooling
An NMR spectrometer comprising an NMR magnet system ( 27 ) disposed in a helium tank of a cryostat and an NMR probe head ( 11 ) disposed in a room temperature bore of the cryostat, which contains a...
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7207178 |
Superconducting device with a cooling-unit cold head thermally coupled to a rotating superconductive winding
The superconducting device has a rotor which is rotatable about an axis of rotation and is provided with a superconductive winding in a heat conducting winding carrier. The winding carrier has a...
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7201003 |
Magnet vent assembly apparatus
A magnet vent assembly for venting a cryogenic gas from a superconducting magnet of an MRI system. The assembly comprises: a first burst disc, the first burst disc comprising a first inlet and a...
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7191601 |
Magnetic field generating assembly
A magnetic field generating assembly comprises a superconducting magnet located in a cryostat defining a bore accessible from outside the cryostat, and a mechanical refrigerator having at least two...
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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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7165422 |
Small-scale gas liquefier
A cryogenic gas is liquefied using a refrigeration system [ 101 ] thermally coupled at an evaporator [ 125 ] to a cold end of a gas supply system [ 103 ] within a dewar [ 116 ]. The refrigerator...
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7162888 |
Robot-based automation system for cryogenic crystal sample mounting
A method and robot-based automation system are provided for cryogenic crystal sample mounting, for example, for use for cryogenic crystal sample mounting in the x-ray crystallography station at an...
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7140190 |
Refrigerator and neck tube arrangement for cryostatic vessel
A cryogenic chamber comprising an outer vacuum vessel ( 9 ), an inner cryogen vessel ( 11 ), a turret ( 40 ) housing a neck tube ( 8 ) itself providing external access to the inner cryogen vessel (...
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7114340 |
Method of making active magnetic refrigerant materials based on Gd-Si-Ge alloys
An alloy made of heat treated material represented by Gd 5 (Si x Ge 1−x ) 4 where 0.47≦x≦0.56 that exhibits a magnetic entropy change (−ΔS m ) of at least 16 J/kg K, a magnetostriction of...
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7073340 |
Cryogenic compressor enclosure device and method
A low-leakage enclosure for cryogenic compressor apparatus includes climate control equipment and guide fixtures to direct ultra-cold coolant lines to a superconducting utility power transformer....
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7059138 |
Biological refrigeration system
A refrigeration system especially useful for refrigerating biological samples wherein a cryocooler, such as one employing a pressure wave from a pressure wave generator, is used to generate...
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7040099 |
Cryostat
A cryostat having a connecting branch which is connected to a coolant chamber and is open on the end side. The connecting branch expands from an inside diameter to an outside diameter.
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7018249 |
Boat propulsion system
A boat propulsion system includes at least one propeller, at least one electric motor by which the at least one propeller can be driven, and one converter-fed power supply unit. The at least one...
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7005953 |
Magnet system with shielded regenerator material
A magnet system with a magnet arrangement (M), a working volume (V) and a pulse tube cooler (P) with magnetic regenerator material (r) is characterized in that a shielding (m) of magnetic material...
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6998947 |
Cryogen pressure vessel assembly for superconducting magnets
A cryogen pressure vessel assembly for a superconducting magnet comprises an inner former, an outer former, and an outer shell. The inner former has a plurality of superconducting magnet coils...
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6996994 |
Vacuum retention method and superconducting machine with vacuum retention
A superconducting machine includes a superconductive device and a vacuum enclosure containing and thermally insulating the superconductive device. A cold-trap is configured to condense gases...
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6990818 |
Device for the recondensation, by means of a cryogenerator, of low-boiling gases evaporating from a liquid gas container
In a device for the re-condensation of low-boiling gases evaporating from a liquid gas container having a tubular neck in which a cold head of a cryo-generator is supported, the cold head includes...
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6965288 |
Pumping or mixing system using a levitating magnetic element
A system capable of pumping or mixing fluids using a rotating magnetic element or bearing levitated by a cold superconducting element is disclosed.
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6959554 |
Passive gas-gap heat switch for adiabatic demagnetization refrigerator
A passive gas-gap heat switch for use with a multi-stage continuous adiabatic demagnetization refrigerator (ADR). The passive gas-gap heat switch turns on automatically when the temperature of...
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6959206 |
Dual-duplexed, tower-top front-end for a radio transceiver system
A system handles both reception signals collected via an antenna and transmission signals generated by a communication station for transmission via the antenna. The system includes a cryostat, a...
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6933817 |
Support member for a superconducting magnet assembly
A superconducting magnet assembly is described wherein the magnet cartridge is suspended within the vacuum chamber by a single support member extending from a wall of the vacuum chamber to the...
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6925815 |
Robot compatible crystal worksite suite
The present invention is directed to a robot compatible crystal worksite suite comprising a unique dewar, a plurality of magazines, a plurality of cryo-pins (that mount crystals to be transferred...
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6923009 |
Pre-cooler for reducing cryogen consumption
MRI system 10 is provided. The MRI system 10 includes a magnet assembly 12 . A first cryogen cooling fluid 20 is utilized to cool the magnet assembly 12 . A first supply line 16 ...
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6900714 |
System and method for quench and over-current protection of superconductor
A system and method for protecting a superconductor. The system may comprise a current sensor operable to detect a current flowing through the superconductor. The system may comprise a coolant...
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6865897 |
Method for providing refrigeration using capillary pumped liquid
A method for providing refrigeration to a refrigeration load such as superconducting equipment while reducing or eliminating potential two phase instability oscillations, wherein refrigeration...
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6854276 |
Method and apparatus of cryogenic cooling for high temperature superconductor devices
A method and apparatus for providing cryogenic cooling to HTS devices, in particular those that are used in high-voltage electric power applications. The method involves pressurizing liquid cryogen...
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6828889 |
Recondensing superconducting magnet thermal management system and method
Heater duty cycle (the active pressure control circuit) in recondensing superconducting magnet systems is monitored to determine total thermal system performance, to minimize non-zero boil-off...
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6804968 |
Cryostat configuration with improved properties
A cryostat configuration for keeping liquid helium, comprising an outer jacket ( 2 ) accommodating a helium container ( 5 ), a neck pipe ( 3 ) which is filled with gaseous helium during operation,...
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6768300 |
Apparatus for measuring electromagnetic characteristics
An apparatus for measuring electromagnetic characteristics includes a sample rod with a sample fixed to a lower part thereof, a helium 3 refrigerator, in which the sample rod is inserted, having...
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6748749 |
Open type magnetic resonance imaging apparatus
Within upper and lower cryostats for a super conducting magnet level sensors which measure respective amounts of liquid helium therein are assembled and are connected to a measuring circuit. When a...
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6732535 |
Device for closing and connecting to external conduits a reservoir of cryogenic fluid, and reservoir provided with such a device
The device comprises a monobloc subassembly ( 1 ) of cast stainless steel comprising a principal portion in the form of a disc ( 4 ) mounted on a collar ( 2 ) of the reservoir ( 3 ) and defining at...
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6688116 |
Refrigerator electron beam ion trap-source
An ion beam producing device employing a refrigeration system to provide the cooling for a superconducting compression magnet at a trap core of an electron beam ion trap (EBIT) without the use of...
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6629426 |
Device used in superconductor technology
In a superconducting current limiter 1 , in the limiting state pressure waves which may damage the superconductor are produced as a result of the evaporation of cooling liquid. According to the...
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6622494 |
Superconducting apparatus and cooling methods
The current invention provides, in some embodiments, superconducting cryostat apparatuses, and methods for containing a coolant within the apparatuses and for cooling the apparatuses. The...
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6615914 |
Programmable, heatable, coolable reaction vessel utilizing phase change refrigeration
A reaction vessel system includes a reaction vessel, a cooling unit functionally connected to the vessel to impart controlled cooling thereto; a heating unit functionally connected to the vessel to...
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6615592 |
Method and system for preparing tissue samples for histological and pathological examination
Viable biological material is cryogenically preserved (cryopreservation) by immersing the material in a tank of cooling fluid, and circulating the cooling fluid past the material at a substantially...
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