Siemens Magnet Technology Ltd. Patent applications |
Patent application number | Title | Published |
20100064506 | METHOD OF FORMING A COUPLED COIL ARRANGEMENT - There is provided a method of forming an encapsulated coupled coil arrangement. The method comprises: coupling a first lead of a first coil to a second lead of an electrical circuit device, by soldering or infusion, using a superconductive jointing alloy; and encapsulating the first coil, the electrical circuit device and the jointed leads of the first coil and the electrical circuit device in an encapsulation material. The jointing alloy has a melting point higher than a highest temperature experienced by the encapsulation material during the encapsulation process. | 03-18-2010 |
20100038131 | Current Leadthrough for Cryostat - A current lead-through for providing an electrically conductive path between an interior of a vessel and the exterior of the vessel. The electrically conductive path is electrically isolated from the material of the vessel. The current lead-through comprises an electrically conductive pin surrounded by an electrically isolating sealing material, and retained within a tubular carrier body by the sealing material, the electrically conductive pin being exposed at each end of the tubular carrier body to enable electrical connection thereto. | 02-18-2010 |
20090280989 | Control of Egress of Gas from a Cryogen Vessel - A method for controlling egress of gas from a cryogen vessel ( | 11-12-2009 |
20090277517 | Passive Overpressure and Underpressure Protection For A Cryogen Vessel - In a magnet system for MRI imaging comprising a superconducting magnet ( | 11-12-2009 |
20090275475 | VACUUM VESSEL FOR COOLED EQUIPMENT - An annular end piece for a cylindrical vacuum vessel, comprising a metal end piece ( | 11-05-2009 |
20090261830 | MAGNETIC RESONANCE IMAGING SCANNER - A processor is provided in a MRI scanner which senses pressure within a cryogen vessel and the ambient environmental pressure outside of the scanner. It controls a pressure controller means in the cryogen to in turn control the pressure to ensure that it is set to provide as large a buffer as possible before a pressure relief valve is opened. This ensures that cryogen is not lost unnecessarily. | 10-22-2009 |
20090234219 | Particle Radiation Therapy Equipment - Particle radiation therapy equipment arranged to apply a charged particle beam to a region of application in a predetermined direction, 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 an imaging volume which includes 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. | 09-17-2009 |
20090205721 | Burst Disc Replacement Apparatus - A burst disc replacement apparatus ( | 08-20-2009 |
20090205720 | Burst Disc Replacement Apparatus - A burst disc replacement apparatus ( | 08-20-2009 |
20090200905 | Panel Mounted Equipment, Cables and Conduits - In a method and apparatus for mounting and retention of ancillary equipment to cover panels of a magnetic field generator of a magnetic resonance imaging system having a cryogenic refrigerator and/or liquid cryogen housed within at least an outer vacuum container, ancillary equipment, cables and conduits are attached to the magnetic field generator, by integrating the electronic assemblies, cables and conduits into a set of modular covers which are connected to each other on installation. The covers may be mechanically mounted directly to the OVC, enabling them to be quickly fitted either in the factory or on the user's site. | 08-13-2009 |
20090193818 | Apparatus for Improved Precooling of a Thermal Radiation Shield in a Cryostat - A cryostat comprises a cryogen vessel housed within an outer vacuum container (OVC), a thermal radiation shield being located between an external surface of the cryogen vessel and an internal surface of the OVC. A decouplable thermal link arrangement is provided between an external surface of the cryogen vessel and an internal surface of the thermal radiation shield, being decoupled by action of an applied magnetic field. | 08-06-2009 |
20090193816 | Method and Apparatus for Controlling the Cooling Power of a Cryogenic Refrigerator Delivered to a Cryogen Vessel - The present invention provides a cryostat comprising a cryogen vessel ( | 08-06-2009 |
20090188261 | Limiter for Limiting the Motion of Components in a Cryostat - A limiter is provided to limit the motion of components in a cryostat during transit. This permits the use of a support structure which minimises the disturbance to an insulating structure and thus reduces ingress of heat to the cryogen. Cryogen loss is reduced leading to lower operating costs. | 07-30-2009 |
20090184714 | HOUSING FOR A MAGNETIC RESONANCE IMAGING SCANNER AND A SCANNER - Pumping out of a vacuum vessel and housing of a scanner is facilitated by providing a hole through a radiation shield. To reduce radiation of heat via this hole to an inner coolant containing vessel a closure member is provided. This is held in spaced apart relationship during pump down by clips. The closure member is provided with a ferrous constituent or member which is then attracted inwards during initialization of the superconducting. This draws the closure member into engagement with the shield to close the hole and to prevent radiation thereby. The clips are profiled to maintain the abutment of the closure member over the hole. | 07-23-2009 |
20090184713 | Tomography System with Cooled Electrically Conductive Conduits - In a tomography system having a superconducting magnet and gradient coils, a cooling arrangement for cooling the gradient coils includes a cooling circuit which itself comprises an outward branch carrying cooling fluid to the gradient coils and a return branch carrying cooling fluid away from the gradient coils. At least part of each of the outward and return branches is formed of an electrically conductive conduit. The conduits provide electrical connections from a power supply to the superconducting magnet. In one embodiment, a first end of the bore of the first electrically conductive conduit is fluidly coupled to the bore of the outward branch; and a first end of the bore of the second electrically conductive conduit is fluidly coupled to the bore of the return branch. An electrically isolating bridging conduit is fluidly coupled between second ends of the first and second electrically conductive conduits. | 07-23-2009 |
20090162584 | RE-WORKABLE PRESSURE VESSELS FOR SUPERCONDUCTING MAGNET ARRANGEMENTS - A reworkable pressure vessel for containing a superconducting magnet arrangement. At least first and second separate parts of the vessel are fabricated from fibre-reinforced thermoplastic material. Said first and second parts comprise facing end surfaces adapted for fusion bonding together to form a union closing said vessel such that said vessel can be opened by application of heat and a cutting tool, and re-closed by re-application of fusion bonding to said union. | 06-25-2009 |
20090158752 | VARIABLE POWER CRYOGENIC REFRIGERATOR - A compressor ( | 06-25-2009 |
20090076376 | Material For Electrical Isolation And Vibro-Acoustic Performance - The present invention provides a material for the construction of external coverings accessible by humans or animals. It aims to increase the breakdown voltage between a high voltage VRF, high frequency source of energy and the human or animal, by adaptation of materials and structures. According to an embodiment of the invention, a structure is provided for the cover | 03-19-2009 |
20090039991 | Electromagnet - An electromagnet comprising a plurality of coils of superconductive material, monolithically embedded in an embedding material, which is solid at the temperature of operation of the superconductive electromagnet, and a method for producing an electromagnet comprising a plurality of coils of superconductive material, comprising the steps of winding coils of superconductive material, retaining the coils at predetermined relative positions, and monolithically embedding the plurality of superconducting coils in an embedding material, which is solid at the temperature of operation of the superconductive electromagnet. | 02-12-2009 |
20090031554 | Method Of Producing A Former For Winding A Magnet Coil And A Method Of Producing A Magnet Coil - A method of producing a former for winding a magnet coil, said former ( | 02-05-2009 |
20080271467 | Refrigerator Interface for Cryostat - A substantially cylindrical cryostat defining an axial imaging region, the cryostat housing a magnet which, in use, provides a substantially homogeneous magnetic field in the imaging region, further comprising a refrigerator arranged to cool certain elements of the cryostat, said refrigerator comprising a magnetic material which, in use, oscillates along an axis of the refrigerator. The cryostat is arranged such that the axis of the refrigerator is substantially tangential to a circle centred on the axis of the cylindrical cryostat. | 11-06-2008 |
20080258729 | Shim for Imaging Magnets - An arrangement for producing an imaging region of increased maximum radial diameter in a magnetic resonance imaging (MRI) system, comprising a solenoidal magnet arrangement ( | 10-23-2008 |
20080250793 | Electrically Conductive Shield For Refrigerator - A cryogenic magnet system, comprising a cryogenic vessel ( | 10-16-2008 |
20080236673 | Burst Disc Arrangement And A Method For Replacing A Burst Disc In A Burst Disc Arrangement - A burst disc arrangement for a cryostat comprising a replaceable burst disc ( | 10-02-2008 |
20080232004 | Circuit For Effective Quench Heating in Superconducting Magnets - An assembly comprising a number of superconductive coils, at least one quench heater arranged to heat the superconductive coil(s) in the event that at least part of at least one of the coils enters a quenched state; means for transferring energy from the coil(s) to the heater(s) in the event that at least part of at least one of the coils enters a quenched state; wherein the means for transferring energy from the coil(s) to the heater(s) includes a series capacitance, through which the energy transferred must pass. | 09-25-2008 |
20080216486 | Cooling Apparatus Comprising a Thermal Interface and Method For Recondensing a Cryogen Gas - A thermal interface between a removable cryogenic refrigerator ( | 09-11-2008 |
20080204025 | Tool and Method for Shimming a Magnet - The invention provides tools and methods for shimming magnets such as MRI and NMR magnets, while at field. The invention provides safe methods for shimming at field. The invention particularly provides a tool ( | 08-28-2008 |