Patents by Inventor Rowan Martin Walsh

Rowan Martin Walsh 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).

  • Superconducting current pump
    Patent number: 9972429
    Abstract: A superconducting current pump arranged to cause a DC electrical current to flow through a superconducting circuit accommodated within a cryogenic enclosure of a cryostat comprises a rotor external to the cryogenic enclosure and a stator within the cryogenic enclosure, the rotor and stator separated by a gap through which passes a thermally insulating wall of the cryogenic enclosure, the rotor and the stator comprising at least in part a ferromagnetic material to concentrate magnetic flux in a magnetic circuit across the gap between the rotor and the stator and through the wall, so that movement of the rotor external to the cryogenic enclosure relative to the stator within the cryogenic enclosure induces a DC transport current to flow around the superconducting circuit within the cryogenic enclosure.
    Type: Grant
    Filed: August 11, 2015
    Date of Patent: May 15, 2018
    Inventors: Rowan Martin Walsh, Christopher William Bumby, Rodney Alan Badcock, Robert Andrew Slade, Zhenan Jiang, Kent Anthony Hamilton, Michael Graeme Fee
  • Superconducting Current Pump
    Publication number: 20170236627
    Abstract: A superconducting current pump arranged to cause a DC electrical current to flow through a superconducting circuit accommodated within a cryogenic enclosure of a cryostat comprises a rotor external to the cryogenic enclosure and a stator within the cryogenic enclosure, the rotor and stator separated by a gap through which passes a thermally insulating wall of the cryogenic enclosure, the rotor and the stator comprising at least in part a ferromagnetic material to concentrate magnetic flux in a magnetic circuit across the gap between the rotor and the stator and through the wall, so that movement of the rotor external to the cryogenic enclosure relative to the stator within the cryogenic enclosure induces a DC transport current to flow around the superconducting circuit within the cryogenic enclosure.
    Type: Application
    Filed: August 11, 2015
    Publication date: August 17, 2017
    Inventors: Rowan Martin Walsh, Christopher William Bumby, Rodney Alan Badcock, Robert Andrew Slade, Zhenan Jiang, Kent Anthony Hamilton, Michael Graeme Fee