Patents by Inventor Leslie Dale Hiebert

Leslie Dale Hiebert 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).

  • Non-intrusive locating of a blockage in a pipeline
    Patent number: 6725717
    Abstract: A blockage in a pipeline is detected by selecting a position on the pipeline between a supply position and a downstream receiving position where the blockage may be located, attaching a strain gauge to the pipeline at the selected position, applying pressure changes to product in the pipeline on one side of the blockage sufficient to cause strain changes in the pipeline, detecting by the strain gauge the presence of any strain changes in the pipeline at the selected position caused by the pressure changes and determining therefrom whether the blockage is upstream or downstream of the selected position.
    Type: Grant
    Filed: July 29, 2002
    Date of Patent: April 27, 2004
    Inventor: Leslie Dale Hiebert
  • Non-intrusive locating of a blockage in a pipeline
    Publication number: 20030029252
    Abstract: A blockage in a pipeline is detected by selecting a position on the pipeline between a supply position and a downstream receiving position where the blockage may be located, attaching a strain gauge to the pipeline at the selected position, applying pressure changes to product in the pipeline on one side of the blockage sufficient to cause strain changes in the pipeline, detecting by the strain gauge the presence of any strain changes in the pipeline at the selected position caused by the pressure changes and determining therefrom whether the blockage is upstream or downstream of the selected position.
    Type: Application
    Filed: July 29, 2002
    Publication date: February 13, 2003
    Inventor: Leslie Dale Hiebert