Patents by Inventor John H. Waygan

John H. Waygan 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).

  • Analyzing internal pressure of a sealed container using frequency spectra
    Patent number: 5353631
    Abstract: The internal pressure of a sealed container is characterized by tapping to vibrate a wall of the container, and then basing the characterization of the internal pressure on a frequency spectrum of the vibration and stored data measured from vibrating other sealed containers. The stored data is generated by vibrating a series of tests controllers having different, known internal pressures.
    Type: Grant
    Filed: May 29, 1992
    Date of Patent: October 11, 1994
    Assignee: Benthos, Inc.
    Inventors: Charles Woringer, John H. Waygan