Patents by Inventor George T. Paulissen

George T. Paulissen 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: 4008603
    Abstract: A method and apparatus for measuring the wall thickness of tubular members using pulses of ultrasonic energy and measuring the time interval between the echoes from the two surfaces of the wall. A rotating diagonal reflector in combination with a fixed transducer is used to scan the interior of the member with the time between the echo from the inner and outer surfaces of the wall being used as a measure of the wall thickness. Each of the time measurements is assigned to a particular counter to accumulate all measurements of a particular thickness. This provides a profile of the wall thickness of the tubular member.
    Type: Grant
    Filed: December 29, 1975
    Date of Patent: February 22, 1977
    Assignee: Shell Oil Company
    Inventor: George T. Paulissen