Patents Assigned to Siemens PLC
  • Wire-in-channel superconductor
    Patent number: 8319105
    Abstract: In a method of manufacturing a copper clad aluminum channel superconductive conductor, an electrically conductive wire comprising a metal or alloy core is formed with a longitudinally extending groove in a surface thereof. A wire made of a material that exhibits superconducting properties within a defined temperature range is soldered into the groove.
    Type: Grant
    Filed: July 11, 2007
    Date of Patent: November 27, 2012
    Assignees: Siemens Plc, Oxford Superconducting Technology
    Inventors: Adrian Mark Thomas, Seungok Hong
  • Superconducting joints
    Patent number: 8315680
    Abstract: In a cold superconducting joint, a joint cup is provided. Lengths of superconducting filaments are placed in the joint cup. A superconducting material fills the joint cup in contact with the superconducting filaments and in thermal and mechanical contact with a pipe carrying a cryogen. The pipe extends into the joint cup and the superconducting material extends around the pipe within the joint cup.
    Type: Grant
    Filed: January 25, 2012
    Date of Patent: November 20, 2012
    Assignee: Siemens PLC
    Inventors: Mark James Le Feuvre, Michael Simpkins
  • Method of forming a coupled coil arrangement
    Patent number: 8307534
    Abstract: A method of forming an encapsulated coupled coil arrangement. The method includes 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 having the encapsulation process.
    Type: Grant
    Filed: January 30, 2012
    Date of Patent: November 13, 2012
    Assignee: Siemens Plc
    Inventors: Graham Hutton, M'Hamed Lakrimi, Adrian Mark Thomas
  • Superconducting electromagnets comprising coils bonded to a support structure
    Patent number: 8306589
    Abstract: A superconducting electromagnet comprising coils of superconducting wire bonded to a support structure, and wherein heating elements are provided in thermal contact with the support structure for heating the support structure.
    Type: Grant
    Filed: February 21, 2012
    Date of Patent: November 6, 2012
    Assignee: Siemens PLC
    Inventors: Hugh Alexander Blakes, Matthew John Longfield, Patrick William Retz
  • Method for progressively introducing current into a superconducting coil mounted on a former
    Patent number: 8305726
    Abstract: 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.
    Type: Grant
    Filed: February 17, 2010
    Date of Patent: November 6, 2012
    Assignee: Siemens Plc
    Inventors: Hugh Alexander Blakes, Russell Peter Gore, Marcel Jan Marie Kruip, Robert Slade
  • Method for assembling a cylindrical magnet assembly to a bore tube
    Patent number: 8291575
    Abstract: A method for assembling a cylindrical magnet assembly, which includes at least one coil mounted on a former, to a bore tube is provided. The method involves providing a cavity 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.
    Type: Grant
    Filed: February 2, 2010
    Date of Patent: October 23, 2012
    Assignee: Siemens Plc
    Inventor: Russell Peter Gore
  • Multi-purpose valve for cryogen gas egress
    Patent number: 8294463
    Abstract: A valve for controlling cryogen egress from a cryogen vessel has a housing having a low pressure side and a high pressure side with a fluid path defined between. A valve element is interposed between the low pressure side and the high pressure side of the housing. A mechanism is provided for holding the valve element against a valve seat. The mechanism has a cam shaft that is rotatable to displace the valve element from its seat to open the fluid path.
    Type: Grant
    Filed: September 1, 2009
    Date of Patent: October 23, 2012
    Assignee: Siemens PLC
    Inventors: Trevor Bryan Husband, Philip Alan Charles Walton
  • Supported Superconducting Magnet
    Publication number: 20120238453
    Abstract: 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.
    Type: Application
    Filed: May 30, 2012
    Publication date: September 20, 2012
    Applicant: Siemens PLC
    Inventors: Marcel KRUIP, Nicholas Mann
  • Method of centralizing and retaining molded end coils in magnet formers
    Patent number: 8262971
    Abstract: A method for centralising and retaining a molded end coil (20) in a magnet former (12) which includes an oversleeve (24) for retaining the end coil in position, the radially outer (A2) surface of the end coil being of lesser diameter than the radially inner surface of the oversleeve.
    Type: Grant
    Filed: November 16, 2007
    Date of Patent: September 11, 2012
    Assignee: Siemens Plc
    Inventor: Simon James Calvert
  • Mass damped bore tube for imaging apparatus
    Patent number: 8264225
    Abstract: A bore tube for use in an imaging apparatus has a first tube and a second tube. The first tube is a complete cylinder of electrically conductive material; and the second tube is segmented into separate elements, each separately attached to the first tube.
    Type: Grant
    Filed: July 22, 2011
    Date of Patent: September 11, 2012
    Assignee: Siemens PLC
    Inventor: Marcel Jan Marie Kruip
  • Method and apparatus for cooling superconductive joints
    Patent number: 8253024
    Abstract: In a method and apparatus for joining a number of superconductive cables to establish electrical connection therebetween, a cup-like member having a base, a sidewall, and an opening to receive electrically conductive ends of said cables is provided. The base of the cup-like member is attached to a holder device. The holder device is attached to a cryogenically cooled surface. The ends of the superconductive cables are connected together within the cup-like member.
    Type: Grant
    Filed: October 16, 2008
    Date of Patent: August 28, 2012
    Assignee: Siemens PLC
    Inventors: Neil John Belton, Simon James Calvert, Raymond Hornsby, Marcel Jan Márie Kruip
  • Vacuum vessel for cooled equipment
    Patent number: 8229527
    Abstract: An annular end piece for a cylindrical vacuum vessel, comprising a metal end piece (42); an outer decorative shell (44) spaced away from a surface of the metal end piece; and a layer of solid foam filling the space between the metal end piece and the outer decorative shell.
    Type: Grant
    Filed: April 23, 2009
    Date of Patent: July 24, 2012
    Assignee: Siemens Plc
    Inventors: Mark James Le Feuvre, Edgar Charles Malcolm Rayner
  • Supported superconducting magnet
    Patent number: 8228147
    Abstract: A supported superconducting magnet, comprising 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 comprises a tubular suspension element located between the magnet and the support surface, said 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.
    Type: Grant
    Filed: September 6, 2007
    Date of Patent: July 24, 2012
    Assignee: Siemens Plc
    Inventors: Marcel Kruip, Nicholas Mann
  • Method of Manufacturing a Solenoidal Magnet, and a Solenoidal Magnet Structure
    Publication number: 20120149580
    Abstract: 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 (88) in the mold to form coils (34); placing a preformed tubular mechanical support structure (102, 120) over the coils (34) so wound; 10 impregnating the coils and bonding them to the mechanical support structure by applying a thermosetting resin and allowing the thermosetting resin to harden; and collapsing the mold and removing the resultant solenoidal magnet structure comprising the resin impregnated coils and the mechanical support structure from the mold as a single solid piece.
    Type: Application
    Filed: January 20, 2012
    Publication date: June 14, 2012
    Applicant: Siemens Plc.
    Inventors: Graham HUTTON, Jonathan Noys, Adrian Mark Thomas
  • Compact Support System Using Low Aspect Ratio Composite Tensile Support Bands
    Publication number: 20120119057
    Abstract: 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.
    Type: Application
    Filed: January 25, 2012
    Publication date: May 17, 2012
    Applicant: Siemens plc
    Inventor: Nicholas MANN
  • Electrically conductive shield for refrigerator
    Patent number: 8171741
    Abstract: A cryogenic magnet system, comprising a cryogenic vessel (1) housing a magnet winding, a vacuum jacket (3) enclosing the cryogenic vessel and a refrigerator (4) at least partially housed within the vacuum jacket and thermally linked (6) to the cryogenic vessel. In particular, the system further comprises an electromagnetic shield.
    Type: Grant
    Filed: March 12, 2005
    Date of Patent: May 8, 2012
    Assignee: Siemens Plc
    Inventors: Timothy John Hughes, Keith White, Stephen Joseph Shelford Lister
  • Device for generating a pulsed magnetic field
    Patent number: 8162037
    Abstract: A pulsed magnetic field is generated by a device having a magnet to be operated in pulse operation which contains at least one superconductive refrigerant-free winding that is disk-shaped or saddle-shaped. Also included is a refrigerating unit which has at least one cold head. A line system, having a refrigerant circulating in it according to a thermosiphon effect, thermally couples the winding to the cold head. The line system has a plurality of separate pipes lying next to one another. The pipes, open onto a common refrigerant distributor and closed at the other end, are thermally coupled to the surface of the disk-shaped or saddle-shaped winding.
    Type: Grant
    Filed: June 20, 2006
    Date of Patent: April 24, 2012
    Assignees: Siemens PLC, Siemens AG
    Inventors: Marcel Jan Marie Kruip, Marijn Pieter Oomen, Peter Van Hasselt
  • Apparatus for quench protection and stabilizing decay in a quasi-persistent superconducting magnet
    Patent number: 8154830
    Abstract: A superconducting magnet assembly comprises a superconducting magnet which, under working conditions, generates a magnetic field in a working volume. The superconducting magnet is connected in parallel with a series combination of a superconducting fault current limiter and a resistor, and with a DC power source. Under working conditions, the magnet can be energized by the power source to generate a desired magnetic field in the working volume.
    Type: Grant
    Filed: February 29, 2008
    Date of Patent: April 10, 2012
    Assignee: Siemens plc
    Inventors: Graham Gilgrass, M'Hamed Lakrimi, Adrian Mark Thomas
  • Method of producing a wound magnet coil
    Patent number: 8151443
    Abstract: A method of producing a former for winding a magnet coil, which former has a pattern of recess-defining ridges that define at least one recess into which wire may be wound to form a magnet coil. The method includes the steps of: producing an accurately machined tool bearing protrusions conforming to an inverse of said pattern of recess-defining ridges; producing said former by molding material against said accurately machined tool; and separating the former from the accurately machined tool. The invention also provides a method of producing a magnet coil employing the former so produced.
    Type: Grant
    Filed: July 16, 2008
    Date of Patent: April 10, 2012
    Assignee: Siemens Plc
    Inventors: Matthew Hobbs, Edgar Charles Malcolm Rayner
  • Magnetic resonance device
    Patent number: 8148987
    Abstract: A magnetic resonance device has a cryostat and a gradient coil assembly situated within an inner bore of the cryostat. A seal is positioned between the gradient coil assembly and the inner bore. The seal includes a first fluid filled toroid or helix mounted concentrically with the gradient coils; and a second fluid filled toroid or helix situated within the first toroid, or first helix.
    Type: Grant
    Filed: March 5, 2010
    Date of Patent: April 3, 2012
    Assignee: Siemens PLC
    Inventor: Marcel Jan Marie Kruip