Patents by Inventor Gaurav D. Kulkarni

Gaurav D. Kulkarni 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).

  • Stress detection tool using magnetic barkhausen noise
    Patent number: 8797033
    Abstract: A stress detecting system and method operable to detect stresses in a conduit or pipe includes a tool movable along a conduit or pipe and operable to generate a magnetic field. The tool is operable to sense magnetic Barkhausen noise within the conduit, such as within a wall of the conduit, in response to the tool generating the magnetic field. The stress detecting system is operable to detect a change in stress along the conduit responsive to an output of the tool. The system may detect changes in stress that are caused by geological changes or shifting or thermal changes at or near the conduit to determine changes in stress along the conduit and changes in stress along the conduit over time and during use of the conduit.
    Type: Grant
    Filed: October 5, 2011
    Date of Patent: August 5, 2014
    Assignee: Microline Technology Corporation
    Inventors: Bruce I. Girrell, Thomas A. Johnson, Ameet V. Joshi, Douglas W. Spencer, Gaurav D. Kulkarni, David J. Henderson