Patents by Inventor Hugh J. Wahl

Hugh J. Wahl 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).

  • Ferromagnetic frame magnet with superconducting coils
    Patent number: 8054077
    Abstract: A magnetic resonance imaging magnet includes a ferromagnetic frame. A pair of generally toroidal superconducting coil units overlie interfaces of side walls incorporated in the frame. Each coil unit may include a vessel having hollow support extensions extending into recesses in the side walls. The coil units may further include elongated, low-thermal conductance supports disposed within the support extensions. The frame may include pole stems projecting inwardly from the side walls, and the coils may be disposed in close proximity to the pole stems. Cryocoolers may be mounted to the frame so that the cryocoolers are substantially mechanically isolated from the coils of the coil units, but are in thermal communication therewith. The cryocooler mountings may be arranged for convenient servicing and installation of the cryocoolers.
    Type: Grant
    Filed: June 17, 2009
    Date of Patent: November 8, 2011
    Assignee: Fonar Corporation
    Inventors: Hank Hsieh, Gordon T. Danby, Raymond V. Damadian, John W. Jackson, Hugh J. Wahl, Cristian Balica
  • FERROMAGNETIC FRAME MAGNET WITH SUPERCONDUCTING COILS
    Publication number: 20090256663
    Abstract: A magnetic resonance imaging magnet includes a ferromagnetic frame. A pair of generally toroidal superconducting coil units overlie interfaces of side walls incorporated in the frame. Each coil unit may include a vessel having hollow support extensions extending into recesses in the side walls. The coil units may further include elongated, low-thermal conductance supports disposed within the support extensions. The frame may include pole stems projecting inwardly from the side walls, and the coils may be disposed in close proximity to the pole stems. Cryocoolers may be mounted to the frame so that the cryocoolers are substantially mechanically isolated from the coils of the coil units, but are in thermal communication therewith. The cryocooler mountings may be arranged for convenient servicing and installation of the cryocoolers.
    Type: Application
    Filed: June 17, 2009
    Publication date: October 15, 2009
    Applicant: FONAR CORPORATION
    Inventors: Hank Hsieh, Gordon T. Danby, Raymond V. Damadian, John W. Jackson, Hugh J. Wahl, Cristian Balica
  • Ferromagnetic frame magnet with superconducting coils
    Patent number: 7560929
    Abstract: A magnetic resonance imaging magnet includes a ferromagnetic frame. A pair of generally toroidal superconducting coil units overlie interfaces of side walls incorporated in the frame. Each coil unit may include a vessel having hollow support extensions extending into recesses in the side walls. The coil units may further include elongated, low-thermal conductance supports disposed within the support extensions. The frame may include pole stems projecting inwardly from the side walls, and the coils may be disposed in close proximity to the pole stems. Cryocoolers may be mounted to the frame so that the cryocoolers are substantially mechanically isolated from the coils of the coil units, but are in thermal communication therewith. The cryocooler mountings may be arranged for convenient servicing and installation of the cryocoolers.
    Type: Grant
    Filed: August 14, 2006
    Date of Patent: July 14, 2009
    Assignee: Fonar Corporation
    Inventors: Hank Hsieh, Gordon T. Danby, Raymond V. Damadian, John W. Jackson, Hugh J. Wahl, Cristian Balica