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5956957 |
Cryostat apparatus
A cryostat having inner and outer vessels, with a containment vessel disposed in the interior of the cryostat spaced from the inner vessel wall. The containment vessel houses a superconducting coil...
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5941080 |
Thin-walled cryostat
A cryostat includes an upper shell and a lower shell connected along a seam. The shells are made of a relatively thin material which would be subject to collapse once the cryostat is evacuated. In...
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5941079 |
Microminiature stirling cycle cryocoolers and engines
A microminiature Stirling cycle engine or cooler is formed utilizing semiconductor, planar processing techniques. Such a Stirling cycle thermomechanical transducer has silicon end plates and an...
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5934082 |
Indirect cooling system for an electrical device
A cooling system for indirect cooling of a device, in particular a superconducting device, located in a vacuum chamber includes at least one refrigerating machine component. This refrigerating...
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5921102 |
Storage apparatus particularly with automatic insertion and retrieval
A storage unit includes a housing with a storage chamber, a carrier disposed inside the chamber for supporting a plurality of specimens in a predetermined array, and an access port on the housing...
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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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5913888 |
Antenna device having at least one cooled antenna
Within a cryostat housing (17), an antenna device (7) having an antenna (16) to be cooled by a cryogenic medium (M). The cryostat housing includes a cold head (15) of a pulse tube cooler, whose...
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5906101 |
Dewar flask-compatible storage system and method of use thereof
A system for storing a plurality of cryopreservable samples is provided, comprising a liquid nitrogen Dewar flask having a substantially circular opening of diameter X defined therein, the Dewar...
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5894733 |
Cryogenic specimen container and labeled sleeve combination and method of using same
A sleeve structure and method are provided for use with a cryogenic specimen container which is maintained at a cryogenic temperature below -80° C. to allow for labeling of the specimen container....
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5893269 |
Crystal freezing apparatus
A crystal freezing apparatus in accordance with the invention includes a first chamber for receiving a macromolecular structure and a second chamber which includes a cryogenic liquid holder. Gas...
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5887449 |
Dual stage active magnetic regenerator and method
A dual stage active magnetic regenerator refrigerator as well as method using the Joule-Brayton thermodynamic cycle includes a high temperature stage refrigerant comprising DyAl 2 or (Dy 1 -x Er x...
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5884489 |
Superconducting magnets
A super-conducting electro-magnet for use in an MRI system comprising a helium vessel within which magnet windings are positioned, a vacuum chamber within which the helium vessel is contained, at...
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5864273 |
Cryocooler vibration isolation and noise reduction in magnetic resonance imaging
Vibration and noise isolation for a magnetic resonance imager (MRI) superconducting magnet cryocooler includes a bellows between the cryocooler and its vacuum sleeve in the magnet, a mass suspended...
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5861574 |
Apparatus for mounting a superconducting element
An apparatus for mounting a superconducting element includes a first chamber which accommodates a first coolant and maintains the superconducting element at a very low temperature, a second chamber...
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5857342 |
Temperature controlling cryogenic package system
A temperature controlled cryogenic package system for efficiently and precisely monitoring and controlling the operating temperature of a high temperature superconductor circuit placed on a...
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5857341 |
Specimen-cooling device
There is disclosed a sample-cooling device for efficiently cooling a sample observed with a scanning probe microscope down to a cryogenic temperature. Cryogenic temperature provided by liquid...
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5848532 |
Cooling system for superconducting magnet
A cooling system is configured to control the flow of a refrigerant by controlling the rate at which the refrigerant is heated, thereby providing an efficient and reliable approach to cooling a...
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5845500 |
Magnetic telescope with enhanced noise suppression
A magnetic telescope utilized to detect flaws in underground articles such as underground piping, implements multiple stages in the form of geometric and electronic configurations to enhance noise...
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5842348 |
Self-contained cooling apparatus for achieving cyrogenic temperatures
A cryogenic cooling apparatus including a vacuum container for containing an object to be cooled, at least one refrigerator for cooling the object, and a thermal switch unit. The refrigerator has a...
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5829256 |
Specimen freezing apparatus
An apparatus for cryogenically freezing tissue specimens includes a linear motion platform and a pair of rotary motion platforms. The rotary motion platforms can be used alternatively with respect...
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5816052 |
Method and apparatus for mechanically cooling energy dispersive X-ray spectrometers
An improved X-ray spectrometer detector system includes a mechanical cooling system with a compressor connected by supply and return lines to a cryocooler connected to an X-ray dispersive...
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5806318 |
Cooling using a cryogenic liquid and a contacting gas
A cooling apparatus includes a dewar and a quantity of liquid nitrogen within the container. Gaseous helium is contacted to the liquid nitrogen, either by contacting its top surface or by being...
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5787714 |
Cooling method and energizing method of superconductor
A method is provided for cooling a high temperature superconductor such as an oxide superconductor to a lower temperature at a lower cost with a more simple system. A superconducting coil is...
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5782095 |
Cryogen recondensing superconducting magnet
A helium cooled superconducting magnet assembly with helium gas recondensing apparatus to return liquid helium to the helium supply in the helium vessel in which the recondensing apparatus...
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5778681 |
Cooling device for cooling heatable gas chromatography analyte sample injector
The present invention is an improved modular cooling device for cooling gas chromatography analyte sample injectors. The invention is embodied in a series of tubes connected in fluid communication...
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5759960 |
Superconductive device having a ceramic superconducting lead resistant to breakage
A superconductive device (e.g., magnet) having a superconductive lead assembly and cooled by a cryocooler coldhead having first and second stages. A first ceramic superconductive lead has a first...
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5744959 |
NMR measurement apparatus with pulse tube cooler
A NMR measurement apparatus comprising a cryostat (10) in which a superconducting magnet coil system (9) is disposed in a first tank (8) having cryogenic liquid and surrounded by additional cooling...
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5737927 |
Cryogenic cooling apparatus and cryogenic cooling method for cooling object to very low temperatures
A cryogenic cooling apparatus is provided, wherein the degree of freedom of installation and use is increased without deteriorating the reliability or stability and the range of uses of the...
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5735129 |
Specimen-cooling system for electron microscope or the like
A cooling system for an electron microscope specimen comprises a refrigerant container, a passage for introducing the refrigerant into a heat-exchanging position, a flow rate-adjusting valve...
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5735127 |
Cryogenic cooling apparatus with voltage isolation
A cryogenic cooling apparatus (cryocooler) with voltage isolation includes a cold end structure, which may be placed in thermally and electrically conductive contact with an electrically charged...
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5724820 |
Permanent magnet system based on high-temperature superconductors with recooling and recharging capabilities
In a "permanent" magnet system based on high-temperature superconductors, a superconducting magnet is cooled to a temperature below its critical temperature with a cooler. The magnet is coupled to...
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5720173 |
Gas-cooled bushing in cryotanks for superconducting applications
A cooling device for cooling of current leads (6, 7) in the bushings of a cryotank (1), wherein the current leads in the gas-filled part of the cryotank are designed as plate-formed sub-leads (12)...
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5701745 |
Cryogenic cold shelf
A cryogenic cold shelf for use in a freeze drying system having a cryogen distributor for passing cryogenic fluid into the shelf volume of the cold shelf at differing rates so as to even...
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5701744 |
Magnetic resonance imager with helium recondensing
A cryogen recondensing system magnetic resonance imager superconducting magnet and a cryogen recondensing system with a rare earth displacement material cryocooler and superconductive lead bismuth...
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5701742 |
Configured indium gasket for thermal joint in cryocooler
An indium gasket having a configuration which allows the indium to reach its yield point at a relatively low contact pressure. The indium gasket is provided with a multiplicity of openings which...
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5697220 |
Refrigeration of superconducting magnet systems
A refrigeration system includes a dewar and a refrigerator/liquefier which meets the variable demands of a superconducting magnet within the dewar. The system is sized to meet average loads over a...
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5694775 |
Magnetic resonance diagnostic apparatus
A magnetic resonance imaging apparatus generates a radiofrequency magnetic field to excite magnetization spins of a subject placed in a static magnetic field, and which receives magnetic resonance...
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5692379 |
Long term thermally stable cryostat
A long-term thermally stable cryostat (40). The cryostat (40) pre-cools an incoming high-pressure gas, converts it to a cold liquid, contains the liquid, and cools an item by allowing the liquid to...
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5682751 |
Demountable thermal coupling and method for cooling a superconductor device
A demountable thermal coupling for engaging a refrigeration unit with a cryogenic device includes a collet assembly which is slidingly mounted against a retainer ring in the passageway of a sleeve...
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5668516 |
Simplified active shield superconducting magnet assembly for magnetic resonance imaging
An improved actively shielded superconducting magnet in which the main and bucking coils are directly wound onto respective coil support structures made of glass fiber-reinforced epoxy. The main...
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5661980 |
Thermally stabilized dewar assembly, and its preparation
A dewar assembly has a wall contacting a liquefied gas within the interior of the dewar assembly. The dewar assembly is processed so as to remove the stable gaseous film boiling layer that is...
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5660053 |
Cold table
A ceramic composite is provided comprising ceramic fibers and microparticles bound together as a porous matrix with a ceramic binder. The ceramic composite is particularly useful for transporting...
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5657634 |
Convection cooling of bellows convolutions using sleeve penetration tube
A sleeve assembly for reducing the thermal conduction heat load from the bellows penetration tube to the heliumvessel of a superconducting magnet assembly. The sleeve assembly is designed to force...
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5653112 |
Cryocooler system with welded cold tip
A cryocooler system (20) includes a heat sink (24), such as a Stirling cycle heat engine having a cold cylinder sleeve (26) and a cold gas pocket region (32) within the cold cylinder sleeve (26)....
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5653113 |
Cooling system
There is provided a cooling chamber which communicates with a nozzle pipe. A heat absorption portion is formed on an outer peripheral surface of an expansion chamber of a cryopump and the heat...
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5651256 |
Superconductive magnet having a thermal shield
A superconductive magnet has a superconductive coil surrounded by a thermal shield surrounded by a vacuum enclosure. The thermal shield has one and preferably several flexible layers of thermally...
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5648638 |
Low-temperature current transfer structure with heat exchanger
In a low-temperature current transfer structure including a conductor with a cold end for connection to a superconductive component and a warm end for connection to a bus, there are provided heat...
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5647228 |
Apparatus and method for regulating temperature in a cryogenic test chamber
A dual capillary inlet cryogenic test chamber having the ability to continuously regulate temperature between about 1.5 K. and 400 K. A controllably heated capillary tube is located in the...
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5644855 |
Cryogenically purged mini environment
A portable contamination-sensitive component transport container provides a continuously purged environment for the components. The container includes an attached cryogenically liquefied inert gas...
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5644919 |
Cryogenic cold storage device
A ceramic composite is provided comprising ceramic fibers and microparticles bound together as a porous matrix with a ceramic binder. The ceramic composite is particularly useful for transporting...
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