|
Match
|
Document |
Document Title |
|
|
4745764 |
Method and device for metal-mirror cryofixation of biomedical or similar technical specimens
A method for metal-mirror cryofixation of bio-medical or similar technical specimens in which a specimen is brought into contact with a highly polished, cooled metal mirror in order to cool at...
|
|
|
4739633 |
Room temperature to cryogenic electrical interface
Apparatus is disclosed for electrically interfacing a circuit operable at one temperature with a circuit operable at another temperature, comprising a primary cooling or heating surface disposed...
|
|
|
4739634 |
Cylindrical counter-flow heat exchanger
A compact and easy-to-construct cylindrical counter-flow heat exchanger is provided for cryogenic refrigeration systems. It has an annular body, a helical pipe wound around and in contact with the...
|
|
|
4740702 |
Cryogenically cooled radiation detection apparatus
A radiation detection apparatus, such as for the detection of infrared radiation, is formed of inner and outer cylindrical stainless steel vessels with the inner vessels supported from the top wall...
|
|
|
4727255 |
Silicone dielectric gel cryogenic detector interface
The inherent video noise and video-flashing encountered at the liquid nitrogen boiling point within a cryogenically cooled detector is substantially eliminated by filling any space which might...
|
|
|
4723420 |
Apparatus for treating specimens at low temperature
Apparatus for treating biological specimens at low temperatures for subsequent microscopic examination comprises a container having a specimen treatment chamber disposed in a vessel adapted to...
|
|
|
4719353 |
Integrated infrared detector and cryoengine assembly
An apparatus for mounting a device used for detecting infrared signals is disclosed. The apparatus includes a housing and an expander upon which the device is mounted. An insulating material...
|
|
|
4715186 |
Coolant preservation container
A coolant preservation container having vacuum space in a peripheral portion of the interior thereof for making a container member adiabatic and a partition for dividing the container member into a...
|
|
|
4713945 |
Turret for cryostat
A turret system providing access to the interior of a vacuum vessel integral to a cryostat used for super conducting magnets in MRI systems. The system enabling the movable connection of a neck...
|
|
|
4713941 |
Cryogenic vessel
A cryogenic vessel comprises a liquid helium tank including a substantially flat top wall and which contains therein a cryogen-cooled electrical apparatus. The helium tank is surrounded by a...
|
|
|
4712388 |
Cryostat cooling system
A cryostat cooling system cools the central processor (CP) circuit boards of a computer to enhance the performance of the electronic components of the central processor. The cryostat includes a...
|
|
|
4712607 |
Cryosystem for biological material
A cryo-cell assembly for biological material including a space for receiving the material, the space being at least partly enclosed by means suitable for conducting heat from the space to a heat...
|
|
|
4706497 |
Liquid detection circuit
Herein is a circuit which is capable of detecting the presence of liquids, especially cryogenic liquids, and whose sensor will not overheat in a vacuum. The circuit parameters, however, can be...
|
|
|
4702825 |
Superconductor high gradient magnetic separator
A high gradient magnet is disclosed having a coil of superconducting material immersed in liquid helium in a toroidal shaped liquid helium vessel, supported in axial spaced concentric relation to a...
|
|
|
4698976 |
Device for producing a cold treatment gas
A device is provided for producing a cold treatment gas from nitrogen and air for the cryotherapy of rheumatic diseases in which liquid nitrogen vaporizes and is mixed in the desired ratio with the...
|
|
|
4696169 |
Cryogenic support member
A cryogenic support member is comprised of a non-metallic rod having a depression in at least one end and a metallic end connection assembled to the rod. The metallic end connection comprises a...
|
|
|
4694655 |
Controllable helium-II phase separator
A controllable helium-II phase separator utilizes the cut-off action of the thermomechanical effect if superfluid helium-II flows through a capillary gap-shaped canal. For controlling the...
|
|
|
4694175 |
Thermal damper for infrared detector
The present invention is directed to a method and apparatus for reducing temperature variation in an infrared detector. The apparatus comprises a coldfinger for receiving thermal energy from an...
|
|
|
4692560 |
Forced flow cooling-type superconducting coil apparatus
In a forced flow cooling-type superconducting coil apparatus including a superconducting coil having superconducting wires inserted into a hollow conduit, current leads for supplying a current to...
|
|
|
4689970 |
Cryogenic apparatus
A cryogenic apparatus comprises a refrigerant vessel containing a superconducting magnet and a refrigerant, a vacuum casing containing the vessel, a radiation shield disposed between the vessel and...
|
|
|
4680945 |
Cooling chamber for processing specimens for microscopic and electron-microscopic investigations
A cooling chamber has an interspace between the structure defining the work chamber and coolant vessel on the one hand, and the outer insulating vessel on the other hand to provide better thermal...
|
|
|
4680936 |
Cryogenic magnet systems
According to the present invention, improved cryogenic magnet systems for use in MRI devices are provided. These systems comprise an electromagnet immersed in a first tank containing a first...
|
|
|
4674290 |
Vent control for a vessel
An apparatus and method for controlling the venting of vapor from a vessel utilizes a differential vapor pressure detection means to measure the difference between vapor pressure in the vessel and...
|
|
|
4672202 |
Adjustable mount for electro-optic transducers in an evacuated cryogenic system
The invention is an adjustable mount for positioning an electro-optic transducer in an evacuated cryogenic environment. Electro-optic transducers are used in this manner as high sensitivity...
|
|
|
4667487 |
Refrigerated penetration insert for cryostat with rotating thermal disconnect
A rotating refrigerator connection is provided which allows field interruption of the heat conduction path between a one, two or three stage cryogenic refrigerator and a cryostat in the event of a...
|
|
|
4667486 |
Refrigerated penetration insert for cryostat with axial thermal disconnect
An axial disconnect is provided for use with refrigerator systems in which the valve motor and displacer drive are not on the same axis as the displacer (cold end) or for situations where the...
|
|
|
4663944 |
Cryogenic sample stage for an ion microscope
A cryogenic sample stage for an ion mass spectrometry system. A mounting is adjustable relative to the ion microscope lens system to maintain alignment with the immersion lens. Sample temperatures...
|
|
|
4658601 |
Cryogenic cell
A cryogenic cell comprises a sealed external annular chamber, adapted to be maintained under vacuum which chamber surrounds a heat shield. A section of the shield is exposed and is adapted to make...
|
|
|
4655045 |
Cryogenic vessel for a superconducting apparatus
A cryogenic vessel for a superconducting apparatus has an inner vessel which houses a freezing mixture and a winding of a superconducting apparatus. The inner vessel is surrounded by a vacuum...
|
|
|
4652824 |
System for generating images and spacially resolved spectra of an examination subject with nuclear magnetic resonance
For providing nuclear magnetic resonance equipment with reduced noise generation, gradient coils are disposed in the vacuum of the cryostat which accepts the superconducting magnetic coils for...
|
|
|
4646525 |
Vessel for a cryogenic mixture and a process for drawing off the liquid
The liquid is drawn from this vessel through a coiled tube (20) provided with a calibrated valve (21) at its inlet. The resulting drop in pressure is compensated for by means of a pressure raising...
|
|
|
4644761 |
Low-temperature goniometer for X-ray and neutron diffractometry
An Euler's goniometer for low-temperature diffractometry is rotatable about two turning circles and is arranged within a chamber filled with a coolant. Each of the turning circles - that is the...
|
|
|
4640099 |
Process and installation for cooling a viscous and in particular food product
The invention concerns the cooling of a viscous product. The product placed in a vessel 30 is cooled by a rotary pot 8 in which is generated, by sleeves 20 and 21, a deposit of carbonic acid snow...
|
|
|
4638639 |
Gas refrigeration method and apparatus
A method of liquefying a permanent gas stream, includes the steps of reducing the temperature of the permanent gas stream at elevated pressure to below its critical pressure and performing at least...
|
|
|
4638638 |
Refrigeration method and apparatus
A method of liquefying a permanent gas stream includes the step of reducing the temperature of the permanent gas stream at elevated pressure to below its critical temperature. The reduction in...
|
|
|
4637226 |
Device for the cryogenic transfer of specimens
A device for use in transferring a specimen from an apparatus containing a cryogenic coolant, comprises a specimen holder and coolant transfer means. The coolant transfer means permits coolant from...
|
|
|
4635451 |
Spring loaded valve for adding cryogenic liquid to a cryostat
A spring loaded valve for use with a cryostat insert is provided for selectively directing liquid cryogen to the bottom or top of a supercoolable vessel. The spring loaded valve situated at the tip...
|
|
|
4635450 |
Compact retractable cryogenic leads
Retractable cryogenic leads for superconducting magnets are provide for making low resistance contacts at liquid helium temperature reliably in the presence of heavy frost. A tube defining a...
|
|
|
4635448 |
Training aid for detector/cooler assembly
A training device is provided to test the skill of a worker assembling cors with cold fingers to dewars containing infrared detectors. The latter are very expensive and fragile. Dummy units are...
|
|
|
4633682 |
Horizontal cryostat insert with a vertical service stack
The insert has a horizontal vacuum jacketed, vapor cooled tube that fits in the cryostat penetration tube. The insert is equipped with a vertical service stack to access cryogenic leads of the...
|
|
|
4619113 |
Process and installation for cooling a powder by means of a refrigerating fluid
A device for injecting a liquefied refrigerating fluid directly into a mass of detergent powder within a hopper the device being connected to a tank storing this fluid under pressure.
|
|
|
4611474 |
Microminiature refrigerator
A microminiature refrigerator or cryocooler which comprises three flat rectangular plates forming a laminate assembly. Passages are formed as opposed channels in the outer plates for routing...
|
|
|
4609003 |
Method and apparatus for generation of a pneumatic feedback trigger signal
An entirely pneumatic feedback signal can be generated within a gas delivery system by diverting the portion of the gas from the main supply line to a cryostat. The gas is cooled in the cryostat...
|
|
|
4600802 |
Cryogenic current lead and method
A cryostat current lead design uses a relatively high (i.e., at room temperature) thermal and electrical conductiveity first tube at its top to minimize joule heating. A relatively low thermal and...
|
|
|
4601040 |
Condensers
A condenser including a condenser chamber having an extension portion extending through the base of a refrigerant storage vessel. The length of the conduction path along this portion is variable....
|
|
|
4589203 |
Method and apparatus for the cryogenic stripping of electric cables
The cable C to be stripped is wound with non-touching coils and crossed layers of cable onto a drum 6 having a perforated core 10 rotatively mounted in a thermally insulated container 1. By...
|
|
|
4586500 |
Breathing apparatus
In a breathing apparatus of the closed circuit type wherein breathable air is recirculated with the removal of carbon dioxide and the replenishment of oxygen, the breathable air is cooled by...
|
|
|
4580411 |
Liquid nitrogen freezer
A portable compact liquified gas refrigeration system and apparatus comprising a freezer housing, a liquid delivery system, a liner and a tray means. The freezer housing is constructed for being...
|
|
|
4580416 |
Apparatus for the cryofixation of specimens
Apparatus for the cryofixation of biological, medical or technical specimens having a high water content or fluid content by immersion in a cooling bath or on a metal mirror surface, comprises a...
|
|
|
4580409 |
Device for freezing biological products contained in straws
The invention relates to the freezing of biological products contained in straws and more particularly to the initiation of the crystallization phase. A series of straws is disposed in such manner...
|