Patents by Inventor Granville G. Ward

Granville G. Ward 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).

  • NMR shim forming method
    Patent number: 6627003
    Abstract: A method of forming a shimming body for a NMR assembly is provided. A magnetizable metal powder of known magnetic properties is provided. The powder is uniformly dispersed into a non-magnetic material to form a mixture having a selected uniform density. A selected weight of magnetic material is determined for a particular installation of an NMR assembly. The mixture is heated. A selected volume corresponding to the selected weight of magnetic material is extruded into a container. The mixture is cooled to form a shimming body.
    Type: Grant
    Filed: January 7, 2002
    Date of Patent: September 30, 2003
    Assignee: GE Medical Systems Global Technology Company, LLC
    Inventors: Gregory F. Hayworth, Delton A. Grey, Jr., Granville G. Ward, Jr.
  • NMR shim forming method
    Publication number: 20030075243
    Abstract: A method of forming a shimming body for a NMR assembly is provided. A magnetizable metal powder of known magnetic properties is provided. The powder is uniformly dispersed into a non-magnetic material to form a mixture having a selected uniform density. A selected weight of magnetic material is determined for a particular installation of an NMR assembly. The mixture is heated. A selected volume corresponding to the selected weight of magnetic material is extruded into a container. The mixture is cooled to form a shimming body.
    Type: Application
    Filed: January 7, 2002
    Publication date: April 24, 2003
    Inventors: Gregory F. Hayworth, Delton A. Grey, Granville G. Ward
  • Superconducting joints for superconducting sheets
    Patent number: 5571602
    Abstract: A superconducting magnet shield includes a plurality of overlapping NbTi sheets welded together with a plurality of welds extending along elongated parallel slots in the overlap region with the slots extending in the direction of superconducting current flow.
    Type: Grant
    Filed: December 29, 1994
    Date of Patent: November 5, 1996
    Assignee: General Electric Company
    Inventors: Phillip W. Eckels, Delton A. Grey, Jr., Christopher G. King, Anthony Mantone, O'Neil T. McClam, Granville G. Ward, Jr.
  • Coil leap lap joint for superconducting magnet
    Patent number: 5255837
    Abstract: A method of forming a long 100-inch low resistance lap joint suitable for joining magnet coils in a superconducting magnet assembly on the magnet drum, which is accomplished by forming a flat solder sandwich within a groove on the drum and moving a heat source along the lap joint with controlled temperature, pressure and rotational speed of the drum.
    Type: Grant
    Filed: August 3, 1992
    Date of Patent: October 26, 1993
    Assignee: General Electric Company
    Inventors: Bu X. Xu, Granville G. Ward, Winfield S. DeWitt, III, Gerhard S. Kobus, Craig C. Duer, Jimmy L. Turner