Patents by Inventor Fred A. Travers

Fred A. Travers 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).

  • Void detector for buried pipelines and conduits using acoustic resonance
    Patent number: 6386037
    Abstract: A method and system are provided for detecting a void in backfill material such as soil surrounding a buried conduit such as a pipeline. The void is detected by monitoring an acoustic response from the conduit in response to acoustic excitation of the interior of the conduit. An analysis of changes in the acoustic response is then related to the presence or absence of a void in the backfill material.
    Type: Grant
    Filed: June 6, 2001
    Date of Patent: May 14, 2002
    Assignee: The United States of America as represented by the Secretary of the Interior
    Inventors: William F. Kepler, Fred A. Travers