Patents by Inventor Delton A. Grey, Jr.

Delton A. Grey, Jr. 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.
  • Niobium tin sheet for superconducting magnets
    Patent number: 5597423
    Abstract: A method to provide large sheets of Nb.sub.3 Sn superconducting material suitable for use as a superconducting gradient shield in a magnetic resonance imaging system magnet by heating an anodized Nb-1 Zr sheet, tin dipping and reacting the sheet, and subsequently quenching the sheet in a purged atmosphere to provide an improved time constant and lowered Jc heating when used in a superconducting magnetic field.
    Type: Grant
    Filed: December 20, 1995
    Date of Patent: January 28, 1997
    Assignee: General Electric Company
    Inventors: John E. Book, Delton A. Grey, Jr., Christopher G. King, Antony Mantone
  • 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.
  • Metal-clad laminate construction
    Patent number: 4499152
    Abstract: A metal-clad laminate having special utility in the production of high resolution printed circuit patterns and preparation of the laminate are described. The laminate preferably comprises a resin-bonded, glass-reinforced substrate, a layer of coupling agent covering and bonded to a major surface of the substrate, a layer of ultra-thin copper adjacent the layer of coupling agent, and a composite bonding layer disposed between the copper layer and the layer of coupling agent. The composite bonding layer comprises copper alloyed with at least one non-copper metal and oxide material of the non-copper metal.
    Type: Grant
    Filed: November 7, 1983
    Date of Patent: February 12, 1985
    Assignee: General Electric Company
    Inventors: Robert W. Green, Delton A. Grey, Jr.
  • Method for predetermining peel strength at copper/aluminum interface
    Patent number: 4452664
    Abstract: A low temperature (about 0.degree. C. to about 100.degree. C.) method is disclosed for forming an ultrathin film of copper on an aluminum carrier sheet. By this method, which employs matte finish aluminum foil, the peel strength for separating the aluminum carrier from the copper film can be preset at a desired value between 0.1 and 2 pounds per inch.
    Type: Grant
    Filed: August 1, 1983
    Date of Patent: June 5, 1984
    Assignee: General Electric Company
    Inventors: Delton A. Grey, Jr., Robert W. Green