Patents by Inventor Kenneth W. Fizer

Kenneth W. Fizer 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).

  • Patent number: 4963826
    Abstract: A reference standard and a method for manufacturing a reference standard for use in calibrating an eddy current probe is disclosed. The reference standard is produced from a block of metal that is deformed by an indentation tool to provide a notch of prescribed dimensions. The reference standard is compressed along an axis substantially transverse to the longitudinal axis of the notch to substantially close the notch. A family of reference standards formed in this manner can be produced to calibrate an eddy current probe prior to use of the probe in evaluating metal components such as aircraft framework for the presence of fatigue cracks and the like.
    Type: Grant
    Filed: July 18, 1989
    Date of Patent: October 16, 1990
    Assignee: The United States of America as represented by the Secretary of Commerce
    Inventors: Thomas E. Capobianco, William P. Dube, Kenneth W. Fizer