Patents by Inventor Dennis E. Sherlin

Dennis E. Sherlin 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).

  • Pin-less composite sleeve or coupling to composite mandrel or shaft connections
    Patent number: 9803449
    Abstract: Methods, devices, and systems of downhole tools are disclosed. The tools each has a sleeve attached to a mandrel to form a composite frac or bridge plug or similar coupling to a downhole tool tubing product without the use of shear pins. The engagement between the mandrel and the sleeve includes a load breaking ledge, threads, ring and groove combination, and helical spiral groove with a helical coil.
    Type: Grant
    Filed: June 6, 2013
    Date of Patent: October 31, 2017
    Assignee: CCDI Composites Inc.
    Inventors: Frederick A. Good, III, Dennis E. Sherlin, Jack A. Shippy
  • PIN-LESS COMPOSITE SLEEVE OR COUPLING TO COMPOSITE MANDREL OR SHAFT CONNECTIONS
    Publication number: 20130327517
    Abstract: Different methods, devices, and systems of downhole tools are disclosed. The tools each has a sleeve attached to a mandrel to form a composite frac or bridge plug or similar coupling to a downhole tool tubing product without the use of shear pins and with tensile and compressive strength over and above what can be achieved solely with adhesive bonding, especially at elevated operating temperatures and pressures.
    Type: Application
    Filed: June 6, 2013
    Publication date: December 12, 2013
    Inventors: Frederick A. Good, III, Dennis E. Sherlin, Jack A. Shippy