Siemens plc. Patent applications |
Patent application number | Title | Published |
20160086693 | SUPERCONDUCTING JOINTS - A superconducting joint and a cooling surface are provided as a combination. The superconducting joint joins superconducting wires each comprising superconducting filaments electrically joined together. The cooling surface comprises a thermally and electrically conductive material. An electrically isolating surface coating is provided on the cooling surface. The superconducting joint, the surface coating and the cooling surface are in thermal contact. The superconducting joint is electrically isolated from the cooling surface by the surface coating. The tails of the superconducting wires are wrapped around the electrically isolating surface coating. | 03-24-2016 |
20160078987 | AN ASSEMBLY COMPRISING A TWO-STAGE CRYOGENIC REFRIGERATOR AND ASSOCIATED MOUNTING ARRANGEMENT - An assembly has a two-stage cryogenic refrigerator and an associated mounting arrangement, and a sock having first and second stages corresponding to first and second stages of the refrigerator, with the first stage of the refrigerator being in thermal contact with the first stage of the sock and the second stage of the refrigerator being in thermal contact with the second stage of the sock. | 03-17-2016 |
20160061382 | IMPROVED THERMAL CONTACT BETWEEN CRYOGENIC REFRIGERATORS AND COOLED COMPONENTS - An arrangement for mounting a two stage cryogenic refrigerator ( | 03-03-2016 |
20160054236 | CRYOSTAT INSPECTION CAMERA ARRANGEMENT AND METHOD - A bung assembly for closing an opening in a turret of a cryostat has a camera housing and bung body that is mechanically dimensioned to fit the opening, and is provided with a sealing arrangement for forming a gas-tight seal between the bung body and the turret. | 02-25-2016 |
20150377991 | SUPERCONDUCTING MAGNET COIL ARRANGEMENT - A superconducting magnet coil arrangement has multiple superconducting coils and at least one of the superconducting coils is provided with a secondary coil of insulated resistive wire mechanically attached to a surface of the superconducting coil. | 12-31-2015 |
20150276129 | CRYOSTAT AND METHOD FOR REDUCING HEAT INPUT INTO A CRYOSTAT - In a cryostat, in particular for use in a magnetic resonance imaging (MRI) system, and a method for reducing heat input into such a cryostat, an insert is provided that is adapted to be inserted into an opening of the cryostat. The insert is adapted to provide one or more passageways for a cryogen through the opening by defining at least one space between the outer surface of the insert and at least one part of the inner surface of the opening. This space allows the cryogen to pass over the part of the inner surface of the opening. | 10-01-2015 |
20150128617 | Closed Cryogen Cooling System And Method For Cooling A Superconducting Magnet - In a cryogen cooling system for cooling a superconducting magnet, a cryogen vessel is linked to a cooling loop arrangement in thermal contact with the superconducting magnet. A recondensing chamber is arranged such that a lower extremity of the cryogen vessel is above a lower extremity of the recondensing chamber. A recondensing refrigerator is arranged to recondense cryogen gas within the recondensing chamber. A heater is positioned to heat gaseous cryogen within the recondensing chamber, and wherein the recondensing chamber is hydraulically connected to the cryogen vessel by a cryogen supply pipe. An upper end of the cryogen supply pipe is exposed to cryogen gas in the cryogen vessel and a lower end of cryogen supply pipe is exposed to an interior of the recondensing chamber towards or at its lower extremity. | 05-14-2015 |
20150099639 | SUPERCONDUCTING MAGNET APPARATUS WITH CRYOGEN VESSEL - In a superconducting magnet apparatus, at least one superconducting winding and an outer vacuum chamber are provided. A thermal radiation shield is located between the superconducting winding and the outer vacuum chamber. A cryogen vessel is positioned within the thermal radiation shield and within the outer vacuum chamber. The superconducting winding is positioned outside of the cryogen vessel. A refrigerator is operable to cool the cryogen vessel to a liquid cryogen temperature and to cool the at least one thermal radiation shield to an intermediate temperature between the liquid cryogen temperature and a temperature of the outer vacuum chamber. A substantial portion of an outer surface of the cryogen vessel has a thermal emissivity at the liquid cryogen temperature which is greater than an average surface emissivity of the superconducting winding by at least 0.1. | 04-09-2015 |
20150061801 | ADHESIVELY BONDED CYLINDRICAL MAGNETS COMPRISING ANNULAR COILS, AND METHOD OF MANUFACTURE THEREOF - In a solenoid magnet assembly, and a method for manufacture thereof, the magnet assembly includes a number of concentrically aligned coils, each including a winding impregnated with a resin. Each coil is mechanically restrained so as to hold the coils in fixed relative positions relative to each other when forming the magnet assembly. The mechanical restraint can be formed by annular support sections bonded to the respective coils, lugs bonded to the respective coils, or by lugs that are at least partially embedded in a crust formed on a radially outer surface of the respective windings. | 03-05-2015 |
20150018218 | MECHANICAL SUPERCONDUCTING SWITCH - A mechanically operating superconducting switch has two superconducting wires, a respective end of each superconducting wire being embedded in a respective block of superconducting material. A mechanical arrangement is provided for driving respective contact surfaces of the blocks into physical contact with each other, and for separating those services. | 01-15-2015 |
20140364318 | METHODS FOR FORMING JOINTS BETWEEN MAGNESIUM DIBORIDE CONDUCTORS - In a method for forming joints between MgB | 12-11-2014 |
20140357494 | VIBRATION ISOLATION FOR SUPERCONDUCTING MAGNETS - A mounting plate for locating under a superconducting magnet structure, between the superconducting magnet structure and a supporting surface of a mobile carrier, is controllable between two different states. In a first state, the mount provides rigid attachment and precise location of the superconducting magnet structure onto the supporting surface of the mobile carrier. In a second state, the mount provides vibration isolation between the superconducting magnet and the mobile carrier. | 12-04-2014 |
20140128719 | MRI MAGNET FOR RADIATION AND PARTICLE THERAPY - In an MRI magnet structure for use with a radiation beam source as an assembly, magnet coils of varying diameters are concentrically arranged along a magnetic axis, the magnetic coils not sharing a common inner or outer radius. Mechanical support is provided to retain the magnetic coils in necessary relative fixed positions. The patient bore tube is provided through the assembly and defines a patient bore axis in an essentially horizontal direction such that the magnetic axis is inclined to the patient bore axis by an angle of 30°-60°. At least one radiation therapy beam access cavity provides access in a straight line for a radiation therapy beam to reach a treatment region within the magnet structure. | 05-08-2014 |
20140085297 | PLACEMENT OF INFORMATION FIELDS WHEN DISPLAYING A DIGITAL MEDICAL DATASET - A method is disclosed for displaying a digital medical image dataset. In an embodiment of the method, when a new set of diagnostic findings is generated, an associated new information field is also generated. A number of possible positions are determined for the new information field. Each of the positions is assigned an evaluation metric in accordance with a number of predefined criteria. The new information field is in this case arranged at that position having the best evaluation metric. Each existing information field that overlaps with the new information field is shifted until the existing information field is arranged free of overlap with the new information field. Other existing information fields that overlap with previously shifted information fields are shifted until all of the information fields are arranged free of overlap with one another. | 03-27-2014 |
20140038828 | JOINTS WITH VERY LOW RESISTANCE BETWEEN SUPERCONDUCTING WIRES AND METHODS FOR MAKING SUCH JOINTS - In a method or joint for joining first and second semiconductor wires, each comprising a number of filaments which each comprise a superconductive core within a respective sheath, the filaments being embedded within a matrix and wherein the superconductive cores comprise magnesium diboride and the sheaths comprise niobium, over a certain length a matrix is removed to expose the filaments. The exposed filaments are immersed in molten tin such that the nobium of the sheaths is converted to niobium-tin throughout a thickness of the sheaths. A superconductive path is provided between the superconductive cores of filaments of the first wire through the niobium-tin sheaths of the filaments to the superconductive cores of the second wire. | 02-06-2014 |
20140033783 | FEED ROLL ASSEMBLY - A feed roll and stripper assembly for a rolling mill includes at least one feed roll at each of an entry side and an exit side of a pair of work rolls and a stripper at each of the entry and exit side of the pair of work rolls. Each stripper has a stripper tip. At least one of the strippers or feed rolls are adapted to have an adjustable vertical separation from one of the work rolls, according to the direction of movement of material through the work rolls. The vertical separation of the at least one stripper or feed roll from the one work roll on the entry or exit side is different from the vertical separation of the other at least one stripper or the feed roll on the other of the entry or exit side. Each stripper tip is separated from one of the work rolls. | 02-06-2014 |
20140033662 | CYCLONE WITH A PLURALITY OF INLET DUCTS - A cyclone has a cyclone body formed with a plurality of inlet ducts and an outlet. A first end of each of the inlet ducts is coupled to a downcomer and a second end of each of the inlet ducts is coupled to the cyclone body. The downcomer proximate the cyclone body is co-axial with and mounted to the cyclone body on a support. Each inlet duct exits the downcomer radially and enters the cyclone body tangentially. | 02-06-2014 |
20130090245 | METHOD FOR COOLING SUPERCONDUCTING JOINTS - A superconducting joint that electrically joins superconducting wires has a block of thermally and electrically conductive material that is coated with an electrically isolated coating that covers at least a part of a surface of the block. Molded semiconducting joint material is provided in contact with the electrically isolating coating. Superconducting filaments of the superconducting wires are embedded within the molded superconducting joint material. | 04-11-2013 |
20130009734 | Method for Assembling a Cylindrical Magnet Assembly to a Bore Tube - A tool for assembling a cylindrical magnet assembly to a bore tube and a resulting assembly. The cylindrical magnet assembly includes at least one coil mounted on a former. A cavity is provided in the former at selected locations. At each of the selected locations, the material of the bore tube is deformed to form a radially-directed protrusion. Each protrusion is brought to bear against a periphery of each corresponding cavity. | 01-10-2013 |
20120238453 | Supported Superconducting Magnet - A supported superconducting magnet includes a superconducting magnet arranged within an outer vacuum container and a support structure bearing the weight of the superconducting magnet against a support surface. The support structure includes a tubular suspension element located between the magnet and the support surface, the tubular suspension element retaining the magnet in a fixed relative position with reference to the outer vacuum container by means of complementary interface surfaces arranged to transmit the weight of the superconducting magnet to the support structure. The tubular suspension element is arranged about a generally vertical axis, and supports a solenoidal magnet structure which is arranged about a generally horizontal axis. | 09-20-2012 |
20120149580 | Method of Manufacturing a Solenoidal Magnet, and a Solenoidal Magnet Structure - A method of manufacturing a solenoidal magnet structure, comprising the steps of providing a collapsible mold in which to wind coils; winding wire into defined positions ( | 06-14-2012 |
20120119057 | Compact Support System Using Low Aspect Ratio Composite Tensile Support Bands - A support system comprising a number of racetrack-shaped tensile support bands held in tension between a supported article and a supporting article, respective curved end portions of each tensile support band being retained by respective mounting points mounted on respective surfaces of the supported article and the supporting article, respectively. At least one of the tensile support bands is arranged so that the curved end portions lie in a plane substantially parallel to the surface upon which the respective mounting point is mounted; and at least one mounting point is a monolithic mounting point having a curved surface which is complementary to an inner curved surface of an end of the tensile support band. | 05-17-2012 |
20110056218 | Quench Energy Dissipation for Superconducting Magnets - An energy dissipation arrangement for a cryogenically cooled superconductive magnet comprising a plurality of superconductive coils ( | 03-10-2011 |
20110053780 | Cryogen Level Probe - A cryogen level probe, comprising a superconducting conductor ( | 03-03-2011 |
20110012698 | Method of Manufacturing a Solenoidal Magnet, and a Solenoidal Magnet Structure - A method of manufacturing a solenoidal magnet structure, comprising the steps of providing a collapsible mold in which to wind coils; winding wire into defined positions ( | 01-20-2011 |
20100283565 | Quench Propagation Circuit for Superconducting Magnets - A quench propagation arrangement for a superconducting magnet comprising a plurality of series-connected superconducting coils, the arrangement comprising: a positive supply line connected to cathodes of first diodes, of which respective anodes are connected to each respective node of the series connection of superconducting coils; a negative supply line connected to anodes of second diodes, of which respective cathodes are connected to each respective node of the series connection of superconducting coils; a number of heaters, respectively thermally connected to each of the superconducting coils and electrically connected between the positive supply line and the negative supply line; and a voltage limiter connected between the positive supply line and the negative supply line, in parallel with the heaters. | 11-11-2010 |
20100237867 | Arrangements and Method for Shimming a Magnetic Field - A shim arrangement for increasing the homogeneity of a magnetic field within a homogeneous field region, comprising: shim channels extending within a volume between a magnetic field generator and the homogeneous field region; at least one piece of shim material located within each shim channel; an arrangement for moving each shim piece along the corresponding shim channel; and retaining means for retaining each shim piece in position. Shimming is performed by moving shim pieces within the shim channels, with the magnet at field. No shim pieces are added to, or removed from, the shim channels during the shimming step. | 09-23-2010 |
20100226058 | Method for Progressively Introducing Current into a Superconducting Coil Mounted on a Former - A method for progressively introducing current into, or removing current from, a superconducting coil mounted on a former, in which the coil vibrates relative to the former. | 09-09-2010 |
20100201379 | Vibrating Wire Ice Indicator - The present invention provides a sensor for detecting the build up of frozen deposits in a cryogen vessel housing a superconducting magnet, comprising a tensioned wire, a source of variable frequency alternating current and a voltage sensor. The tensioned wire is oriented perpendicular to the direction of the stray magnetic field produced by the superconducting magnet. By varying the frequency of the applied current, the resonant frequency of the tensioned wire may be detected as the frequency at which the voltage across the wire is a maximum. Any variation in the frequency or magnitude of the resonant peak may be interpreted as an indication of a frozen deposit hampering the free oscillation of the tensioned wire. | 08-12-2010 |
20100200594 | Thermal Radiation Shield, a Cryostat Containing a Cooled Magnet and an MRI System Comprising a Radiation Shield - The present invention provides a thermal radiation shield ( | 08-12-2010 |
20100199690 | Refrigerator Isolation Valve - A cryogen vessel ( | 08-12-2010 |
20100192359 | Method of Attaching Magnet Assembly to Helium Vessel - A method for assembling a cylindrical magnet assembly to a bore tube, wherein the cylindrical magnet assembly comprises at least one coil mounted on a former, comprising the steps of providing a cavity in the former at selected locations;
| 08-05-2010 |
20100051307 | Cooled Current Leads For Cooled Equipment - A cooled current lead for conducting electrical current into a cooled vessel. The current lead comprises an electrical conductor ( | 03-04-2010 |
20100013418 | Particle Radiation Therapy Equipment - Particle radiation therapy equipment arranged to apply a charged particle beam in a predetermined direction to a region of application within an imaging volume, comprising a charged particle beam source arranged to direct a charged particle beam in the predetermined direction, further comprising magnetic field generation means for generating a magnetic field in the region of application at the same time that the charged particle beam is applied, wherein the magnetic field generation means is arranged to provide access to the region of application for the charged particle beam, and to provide a homogeneous magnetic field in the region of application of the charged particle beam, said magnetic field being directed substantially in the predetermined direction. | 01-21-2010 |