Patents by Inventor Nicholas C. Ferreira

Nicholas C. Ferreira 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: 4805459
    Abstract: An ultrasonic sound echography technique is disclosed in which echo-masked zones of the workpiece are reduced by utilizing particular orientations of the beam of ultrasonic sound relative to formations in the workpiece. Echo-masked zones result from formations in the workpiece which reflect the ultrasonic sound waves back to the probe and therefore mask the much smaller echoes from anomalies, if any, in the workpiece. Instead of the conventional orientation of the beam, in which the scanning plane in which the beam lies is oriented perpendicularly to formations, the scanning planes are selected so as to be non-perpendicular with respect to such formations and to minimize the amount of masking echoes from the formations.
    Type: Grant
    Filed: February 29, 1988
    Date of Patent: February 21, 1989
    Assignee: Aerospace Testing Lab, Inc.
    Inventor: Nicholas C. Ferreira