Patents by Inventor Marion A. Tennison

Marion A. Tennison 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).

  • Ultrasonic inspection of pipelines
    Patent number: 4092868
    Abstract: A method and device which are suitable for the in-place inspection of pipelines are provided. A completely self-contained, mobile inspection station is placed inside a pipeline. The station runs through the pipe and transmits Lamb waves within the pipe wall, receives reflected and transmitted portions of the waves, and records the amplitude and phase of the received waves. The recorded information is analyzed to determine the location and nature of discontinuities in the pipe.
    Type: Grant
    Filed: October 12, 1976
    Date of Patent: June 6, 1978
    Assignee: Rockwell International Corporation
    Inventors: Robert B. Thompson, George A. Alers, Marion A. Tennison