Patents by Inventor Robert C. Diehl

Robert C. Diehl 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).

  • Publication number: 20100019776
    Abstract: The present disclosure relates to a system and method for analyzing a superconducting wire. A method in accordance with at least one embodiment described herein may include performing a voltage/current (VI) test for each of a plurality of portions of superconducting wire. The VI test may include determining a plurality of VI data points for each of the plurality of portions of superconducting wire at a first VI datapoint of about (Ic (critical current), Ec (critical electric field)) and at a second VI datapoint of about (Ix, Ex). Ex may be at least 10 times Ec and Ix may be approximately equal to the current resulting at that voltage drop. The method may further include analyzing the plurality of VI data points for each portion of superconducting wire to determine if one or more of the portions of superconducting wire are defective. Of course, numerous other embodiments are also within the scope of the present disclosure.
    Type: Application
    Filed: July 23, 2008
    Publication date: January 28, 2010
    Inventors: Douglas C. Folts, Eric R. Podtburg, Robert C. Diehl
  • Patent number: 6762673
    Abstract: An elongated current limiting composite material comprising one or more high-temperature superconductor filaments and a second electrically conductive member, which may include a sheath of high bulk resistivity surrounding the filament. The current limiter exhibits dissipation in the range of 0.05-0.5 V/cm at currents of 3-10 times the operating current, thereby minimizing fault currents and improving recovery capability.
    Type: Grant
    Filed: January 20, 2000
    Date of Patent: July 13, 2004
    Assignees: American Superconductor Corp., ABB Transmission & Distribution Technologies, Ltd.
    Inventors: Alexander Otto, Ralph P. Mason, Craig J. Christopherson, Peter R. Roberts, Steven Fleshler, Gilbert N. Riley, Jr., Swarn S. Kalsi, Gregory L. Snitchler, Robert C. Diehl, Dietrich Bonmann, Martin Lakner, Willi Paul, Harry Zueger