Patents by Inventor Werner Yzelman

Werner Yzelman 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).

  • Method and apparatus for demagnetizing generator components prior to electromagnetic core imperfection testing or EL-CID testing
    Patent number: 8941970
    Abstract: A method and apparatus for determining and for reducing magnetism in a generator stator core (20). The method includes extending one or more conductors (38) proximate the core, applying a polarity-reversing excitation voltage to the one or more conductors, and reducing an amplitude of the voltage over time, wherein the voltage causes current to flow in the conductors, the current generating a magnetic field that demagnetizes the core. The method and apparatus are useful for determining hot spots in the core.
    Type: Grant
    Filed: October 18, 2011
    Date of Patent: January 27, 2015
    Assignee: Siemens Energy, Inc.
    Inventors: Michael J. Metala, Werner Yzelman
  • METHOD AND APPARATUS FOR DEMAGNETIZING GENERATOR COMPONENTS PRIOR TO ELECTROMAGNETIC CORE IMPERFECTION TESTING OR EL-CID TESTING
    Publication number: 20130094117
    Abstract: A method and apparatus for determining and for reducing magnetism in a generator stator core (20). The method includes extending one or more conductors (38) proximate the core, applying a polarity-reversing excitation voltage to the one or more conductors, and reducing an amplitude of the voltage over time, wherein the voltage causes current to flow in the conductors, the current generating a magnetic field that demagnetizes the core. The method and apparatus are useful for determining hot spots in the core.
    Type: Application
    Filed: October 18, 2011
    Publication date: April 18, 2013
    Inventors: Michael J. Metala, Werner Yzelman