Patents by Inventor Keelan J. Prewett

Keelan J. Prewett 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).

  • Isolation Plug With Energized Seal
    Publication number: 20240133502
    Abstract: A pipeline isolation tool [10] and method of its use includes a plugging head [20] having a seal [30] to sealably engage a pipe wall; a fluid-activated cylinder [64] located on one side of the seal and moveable in an axial direction; metal support segments [40] located on another side of the seal and moveable in a transverse direction radially outward and inward; the metal segments including a concave portion [45], a portion [35] of the seal residing within the concave portion when unset and set. When in a seal unset position a portion [33] of the seal is covered by adjacent metal support segments of the plurality. When in a seal set position the portion of the seal is exposed between the adjacent metal support segments. The seal is self-energizing, its actuating force being in a same direction as a force from isolation pressure.
    Type: Application
    Filed: October 22, 2023
    Publication date: April 25, 2024
    Inventors: Thomas H. McKone, Cody A. Parsley, Keelan J. Prewett
  • Isolation plug with energized seal
    Patent number: 11796114
    Abstract: A pipeline isolation tool [10] and method of its use includes a plugging head [20] having a seal [30] to sealably engage a pipe wall; a fluid-activated cylinder [64] located on one side of the seal and moveable in an axial direction; metal support segments [40] located on another side of the seal and moveable in a transverse direction radially outward and inward; the metal segments including a concave portion [45], a portion [35] of the seal residing within the concave portion when unset and set. When in a seal unset position a portion [33] of the seal is covered by adjacent metal support segments of the plurality. When in a seal set position the portion of the seal is exposed between the adjacent metal support segments. The seal is self-energizing, its actuating force being in a same direction as a force from isolation pressure.
    Type: Grant
    Filed: April 26, 2021
    Date of Patent: October 24, 2023
    Assignee: TDW Delaware, Inc.
    Inventors: Thomas H. McKone, Cody A. Parsley, Keelan J. Prewett
  • Isolation Plug With Energized Seal
    Publication number: 20220065380
    Abstract: A pipeline isolation tool [10] and method of its use includes a plugging head [20] having a seal [30] to sealably engage a pipe wall; a fluid-activated cylinder [64] located on one side of the seal and moveable in an axial direction; metal support segments [40] located on another side of the seal and moveable in a transverse direction radially outward and inward; the metal segments including a concave portion [45], a portion [35] of the seal residing within the concave portion when unset and set. When in a seal unset position a portion [33] of the seal is covered by adjacent metal support segments of the plurality. When in a seal set position the portion of the seal is exposed between the adjacent metal support segments. The seal is self-energizing, its actuating force being in a same direction as a force from isolation pressure.
    Type: Application
    Filed: April 26, 2021
    Publication date: March 3, 2022
    Inventors: Thomas H. McKone, Cody A. Parsley, Keelan J. Prewett
  • Isolation plug with energized seal
    Patent number: 10989347
    Abstract: A pipeline isolation tool [10] and method of its use includes a plugging head [20] having a seal [30] to sealably engage a pipe wall; a fluid-activated cylinder [64] located on one side of the seal and moveable in an axial direction; metal support segments [40] located on another side of the seal and moveable in a transverse direction radially outward and inward; the metal segments including a concave portion [45], a portion [35] of the seal residing within the concave portion when unset and set. When in a seal unset position a portion [33] of the seal is covered by adjacent metal support segments of the plurality. When in a seal set position the portion of the seal is exposed between the adjacent metal support segments. The seal is self-energizing, its actuating force being in a same direction as a force from isolation pressure.
    Type: Grant
    Filed: June 21, 2019
    Date of Patent: April 27, 2021
    Assignee: TDW Delaware, Inc.
    Inventors: Thomas H. McKone, Cody A. Parsley, Keelan J. Prewett
  • Isolation Plug With Energized Seal
    Publication number: 20190390814
    Abstract: A pipeline isolation tool [10] and method of its use includes a plugging head [20] having a seal [30] to sealably engage a pipe wall; a fluid-activated cylinder [64] located on one side of the seal and moveable in an axial direction; metal support segments [40] located on another side of the seal and moveable in a transverse direction radially outward and inward; the metal segments including a concave portion [45], a portion [35] of the seal residing within the concave portion when unset and set. When in a seal unset position a portion [33] of the seal is covered by adjacent metal support segments of the plurality. When in a seal set position the portion of the seal is exposed between the adjacent metal support segments. The seal is self-energizing, its actuating force being in a same direction as a force from isolation pressure.
    Type: Application
    Filed: June 21, 2019
    Publication date: December 26, 2019
    Inventors: Thomas H. McKone, Cody A. Parsley, Keelan J. Prewett