Patents by Inventor Patrick Francis Campbell

Patrick Francis Campbell 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).

  • JETTISONABLE BALL SEAL
    Publication number: 20210172278
    Abstract: A device, system and method are provided for using a seal sub to isolate a well. The seal sub generally has a primary channel extending through the seal sub and seat positioned within the primary channel. As a ball setting tool passes through the seal sub and the seat, a ball connected to the setting tool with a shear pin contacts the seat and selectively connects to the seal sub. A predetermined force can be applied to the ball setting tool to break the shear pin, which leaves the seal ball in place, and the seal sub and the seal ball isolate the downhole pressures and contents from the uphole pressures and contents.
    Type: Application
    Filed: December 7, 2020
    Publication date: June 10, 2021
    Inventors: Bryce Elliott Randle, Patrick Francis Campbell
  • Jettisonable ball seal
    Patent number: 10858905
    Abstract: A device, system and method are provided for using a seal sub to isolate a well. The seal sub generally has a primary channel extending through the seal sub and seat positioned within the primary channel. As a ball setting tool passes through the seal sub and the seat, a ball connected to the setting tool with a shear pin contacts the seat and selectively connects to the seal sub. A predetermined force can be applied to the ball setting tool to break the shear pin, which leaves the seal ball in place, and the seal sub and the seal ball isolate the downhole pressures and contents from the uphole pressures and contents.
    Type: Grant
    Filed: June 15, 2017
    Date of Patent: December 8, 2020
    Assignee: CAJUN SERVICES UNLIMITED, LLC
    Inventors: Bryce Elliott Randle, Patrick Francis Campbell
  • JETTISONABLE BALL SEAL
    Publication number: 20170362913
    Abstract: A device, system and method are provided for using a seal sub to isolate a well. The seal sub generally has a primary channel extending through the seal sub and seat positioned within the primary channel. As a ball setting tool passes through the seal sub and the seat, a ball connected to the setting tool with a shear pin contacts the seat and selectively connects to the seal sub. A predetermined force can be applied to the ball setting tool to break the shear pin, which leaves the seal ball in place, and the seal sub and the seal ball isolate the downhole pressures and contents from the uphole pressures and contents.
    Type: Application
    Filed: June 15, 2017
    Publication date: December 21, 2017
    Inventors: Bryce Elliott Randle, Patrick Francis Campbell