Patents by Inventor Martin Howard Hempstead

Martin Howard Hempstead has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Thermal buses for cryogenic applications
    Patent number: 11551841
    Abstract: A superconducting magnet device including a plurality of superconducting magnet coils; a structural element mechanically and thermally linked to respective magnet coils to retain them in respective relative positions; and a cooling station thermally connected to a cryogenic refrigerator and to the structural element. A thermally conductive path, which passes through the structural element, is established between the cryogenic refrigerator and the superconducting magnet coils through the structural element.
    Type: Grant
    Filed: October 21, 2019
    Date of Patent: January 10, 2023
    Assignee: Siemens Healthcare Limited
    Inventors: Simon Chorley, Martin Howard Hempstead, Michael Simpkins
  • Assembly comprising a cylindrical structure supported by a support structure
    Patent number: 11387026
    Abstract: An assembly having a cylindrical structure supported by a support structure having at least one support element, the support structure being cradle shaped, such that vertical and horizontal loads are taken largely as shear forces by respective interface surfaces which are substantially parallel to the direction of the respective load, and vertical loads are taken in a direction substantially tangential to the cylindrical surface of the cylindrical structure.
    Type: Grant
    Filed: November 21, 2018
    Date of Patent: July 12, 2022
    Assignee: Siemens Healthcare Limited
    Inventors: William James Bickell, Ashley Fulham, Martin Gambling, Martin Howard Hempstead, Graeme Hyson, Paul Lewis, Nicholas Mann, Michael Simpkins
  • AN ASSEMBLY COMPRISING A CYLINDRICAL STRUCTURE SUPPORTED BY A SUPPORT STRUCTURE
    Publication number: 20210183551
    Abstract: An assembly having a cylindrical structure supported by a support structure having at least one support element, the support structure being cradle shaped, such that vertical and horizontal loads are taken largely as shear forces by respective interface surfaces which are substantially parallel to the direction of the respective load, and vertical loads are taken in a direction substantially tangential to the cylindrical surface of the cylindrical structure.
    Type: Application
    Filed: November 21, 2018
    Publication date: June 17, 2021
    Applicant: Siemens Healthcare Limited
    Inventors: William James Bickell, Ashley Fulham, Martin Gambling, Martin Howard Hempstead, Graeme Hyson, Paul Lewis, Nicholas Mann, Michael Simpkins
  • THERMAL BUSES FOR CRYOGENIC APPLICATIONS
    Publication number: 20210074457
    Abstract: A superconducting magnet device including a plurality of superconducting magnet coils; a structural element mechanically and thermally linked to respective magnet coils to retain them in respective relative positions; and a cooling station thermally connected to a cryogenic refrigerator and to the structural element. A thermally conductive path, which passes through the structural element, is established between the cryogenic refrigerator and the superconducting magnet coils through the structural element.
    Type: Application
    Filed: October 21, 2019
    Publication date: March 11, 2021
    Applicant: Siemens Healthcare Limited
    Inventors: Simon Chorley, Martin Howard Hempstead, Michael Simpkins
  • Combined shim and bore cooling assembly
    Patent number: 10520567
    Abstract: For shimming a background magnetic field of a magnetic resonance imaging apparatus having an outer vacuum chamber (OVC) bore tube, a shimming arrangement has rails on the OVC bore tube and shim trays are mounted between respective rails.
    Type: Grant
    Filed: September 9, 2015
    Date of Patent: December 31, 2019
    Assignee: Siemens Healthcare Limited
    Inventors: Nicholas Aley, Neil John Belton, Martin Howard Hempstead, Marcel Kruip, Patrick William Retz
  • COMBINED SHIM AND BORE COOLING ASSEMBLY
    Publication number: 20170285121
    Abstract: An arrangement for shimming a background magnetic field of a magnetic resonance imaging apparatus having an outer vacuum chamber (OVC) bore tube (1). Rails (8, 9) are provided on the OVC bore tube and shim trays (4) are mounted between respective rails.
    Type: Application
    Filed: September 9, 2015
    Publication date: October 5, 2017
    Applicant: SIEMENS HEALTHCARE LIMITED
    Inventors: Nicholas ALEY, Neil John BELTON, Martin Howard HEMPSTEAD, Marcel KRUIP, Patrick William RETZ
  • Support structure for cylindrical superconducting coil structure
    Patent number: 9711267
    Abstract: An arrangement for supporting a cylindrical superconducting coil structure has recesses in an axial end-surface of the coil structure, and support brackets that individually horizontally protrude into the recesses, such that a vertical loading on the support brackets bears the weight of the coil structure. Opposite ends of the support brackets engage a support member, which supports the support brackets engaged therein, thereby also bearing the weight of the coil structure.
    Type: Grant
    Filed: May 12, 2014
    Date of Patent: July 18, 2017
    Assignee: Siemens Healthcare Limited
    Inventors: Peter Jonathan Davis, Yunxin Gao, Martin Howard Hempstead, Matthew John Longfield
  • SUPPORT STRUCTURE FOR CYLINDRICAL SUPERCONDUCTING COIL STRUCTURE
    Publication number: 20160314885
    Abstract: An arrangement for supporting a cylindrical superconducting coil structure has recesses in an axial end-surface of the coil structure and support brackets protruding into the recesses, such that a vertical loading on the support brackets bears the weight of the coil structure.
    Type: Application
    Filed: May 12, 2014
    Publication date: October 27, 2016
    Applicant: SIEMENS HEALTHCARE LIMITED
    Inventors: Peter Jonathan DAVIS, Yunxin GAO, Martin Howard HEMPSTEAD, Matthew John LONGFIELD
  • Turret subassembly for use as part of a cryostat and method of assembling a cryostat
    Patent number: 8650889
    Abstract: A turret subassembly for use as part of a cryostat, the turret subassembly comprising a vent tube (32) housing an auxiliary vent (40); a refrigerator sock (34) for housing a refrigerator; a termination box (30) linking the vent tube and the refrigerator sock, and having an opening (52) in one wall (54); and means (38) for attachment of the turret subassembly to a cryogen vessel (12).
    Type: Grant
    Filed: September 13, 2007
    Date of Patent: February 18, 2014
    Assignee: Siemens Plc
    Inventors: Martin Howard Hempstead, Stephen Paul Trowell
  • Current leadthrough for cryostat
    Patent number: 8084698
    Abstract: 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.
    Type: Grant
    Filed: October 31, 2008
    Date of Patent: December 27, 2011
    Assignee: Siemens Plc
    Inventors: Neil John Belton, Martin Howard Hempstead, Stephen Paul Trowell
  • Turret Subassembly for use as Part of a Cryostat and Method of Assembling a Cryostat
    Publication number: 20100043454
    Abstract: A turret subassembly for use as part of a cryostat, the turret subassembly comprising a vent tube (32) housing an auxiliary vent (40); a refrigerator sock (34) for housing a refrigerator; a termination box (30) linking the vent tube and the refrigerator sock, and having an opening (52) in one wall (54); and means (38) for attachment of the turret subassembly to a cryogen vessel (12).
    Type: Application
    Filed: September 13, 2007
    Publication date: February 25, 2010
    Inventors: Martin Howard Hempstead, Stephen Paul Trowell
  • Current Leadthrough for Cryostat
    Publication number: 20100038131
    Abstract: 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.
    Type: Application
    Filed: October 31, 2008
    Publication date: February 18, 2010
    Applicant: Siemens Magnet Technology Ltd.
    Inventors: Neil John BELTON, Martin Howard Hempstead, Stephen Paul Trowell