Patents by Inventor John E Medema

John E Medema 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 core winding method, apparatus, and product produced therefrom
    Patent number: 7154368
    Abstract: The invention relates to winding wire around a magnetic core. The invention includes forming corners on the wire that align with inside corners of the magnetic core such that the wire is more tightly wound around the magnetic core. The invention also includes pinching a portion of wire that is positioned on the internal diameter of a magnetic core when the wire is wound around the core to provide more turns of the wire around the magnetic core. A magnetic inductor made in accordance with the present invention can have increased inductance, lower temperature rise, smaller size, and exhibit less EMI noise than the prior art.
    Type: Grant
    Filed: July 2, 2004
    Date of Patent: December 26, 2006
    Assignee: Actown Electricoil, Inc.
    Inventors: Matthew Sweeney, John E. Medema, Michael G. Roeber
  • Magnetic core winding apparatus
    Patent number: 7124977
    Abstract: The invention relates to winding wire around a magnetic core. The invention includes forming corners on the wire that align with inside corners of the magnetic core such that the wire is more tightly wound around the magnetic core. The invention also includes pinching a portion of wire that is positioned on the internal diameter of a magnetic core when the wire is wound around the core to provide more turns of the wire around the magnetic core. A magnetic inductor made in accordance with the present invention can have increased inductance, lower temperature rise, smaller size, and exhibit less EMI noise than the prior art.
    Type: Grant
    Filed: May 24, 2005
    Date of Patent: October 24, 2006
    Assignee: Actown Electrocoil, Inc.
    Inventors: Matthew Sweeney, John E Medema, Michael G Roeber