Patents by Inventor William Ziegenhagen

William Ziegenhagen 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).

  • Axial and circumferential flaw sensing eddy current probe
    Patent number: 9267921
    Abstract: A rotating field eddy current probe for sensing flaws in electrically conductive tubing is disclosed. The probe includes two stimulation coils physically arranged at 90 degrees to each other about an axis a current sensing portion. The a first alternating current is applied to one of the stimulation coils at a first phase and a second alternating current is applied to the second of the stimulation coils at a second phase, said second phase being electrically 90 degrees apart from said first phase and creating a rotating oscillating magnetic field.
    Type: Grant
    Filed: June 29, 2012
    Date of Patent: February 23, 2016
    Assignee: Zetec, Inc.
    Inventors: Jevne Branden Michaeu-Cunningham, Anil Sood, Steve Timm, William Ziegenhagen, Pauline Tarango
  • AXIAL AND CIRCUMFERENTIAL FLAW SENSING EDDY CURRENT PROBE
    Publication number: 20140002070
    Abstract: A rotating field eddy current probe for sensing flaws in electrically conductive tubing is disclosed. The probe includes two stimulation coils physically arranged at 90 degrees to each other about an axis a current sensing portion. The a first alternating current is applied to one of the stimulation coils at a first phase and a second alternating current is applied to the second of the stimulation coils at a second phase, said second phase being electrically 90 degrees apart from said first phase and creating a rotating oscillating magnetic field.
    Type: Application
    Filed: June 29, 2012
    Publication date: January 2, 2014
    Applicant: Zetec, Inc.
    Inventors: Jevne Branden Michaeu-Cunningham, Anil Sood, Steve Timm, William Ziegenhagen, Pauline Tarango