Patents by Inventor Robert D. Barton

Robert D. Barton 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: 4072894
    Abstract: Inspection apparatus adapted to be propelled through a pipeline. Means are provided to establish a circumferentially directed flux field in wall of pipe, and longitudinally extending flexible fins or flaps of elastomeric material curve outwardly from apparatus to resiliently hold flux leakage detection means against wall of pipe. Means responsive to axial movement of apparatus imparts helical movement of apparatus. Apparatus is readily adapted to inspect pipelines of different sizes.
    Type: Grant
    Filed: September 19, 1975
    Date of Patent: February 7, 1978
    Assignee: AMF Incorporated
    Inventor: Robert D. Barton