Patents by Inventor Donald E. Walker

Donald E. Walker 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).

  • Magnetic component assembly
    Patent number: 6124778
    Abstract: A magnetic component assembly includes a circuit board having at least one layer. A first winding is provided on at least one surface of a layer of the circuit board and a further winding is provided on the same or a different surface of the circuit board. A first magnetic core is associated with the first winding to define a first magnetic component and a further magnetic core is associated with the further winding to define a further magnetic component. There is thereby provided an assembly of two or more magnetic components integrated in a single circuit board providing an efficient space saving configuration. A particular application relates to the provision of integrated magnetic components for power supplies.
    Type: Grant
    Filed: October 14, 1997
    Date of Patent: September 26, 2000
    Assignees: Sun Microsystems, Inc., Sun Microsystems Limited
    Inventors: Anna K. Rowley, Robert G. Murton, Donald E. Walker
  • Molded framework for electroless and electrolytic plating racks
    Patent number: 4714535
    Abstract: A platable plastic product substrate assembly is disclosed. The product substrate assembly comprises a runner system having at least one runner and at least one clip for engaging the framework of a plating rack. A plurality of product substrates are removably attached to gates with clip protruding from the runner.
    Type: Grant
    Filed: May 22, 1986
    Date of Patent: December 22, 1987
    Assignee: Crown City Plating Co.
    Inventors: Robert L. Coombes, Jr., Merrill J. Owen, Terance C. Colwell, Donald E. Walker