Patents by Inventor Dawna Mauldin

Dawna Mauldin 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).

  • Patent number: 11976539
    Abstract: A gun tube for a downhole perforating gun assembly includes a body having a cavity and one or more weights in the cavity. Gravity acts on the weights, which causes the tube body to rotate around its longitudinal axis so the weights are adjacent the lower part of the wellbore in which the gun assembly is positioned when oriented horizontally. This position shape charges in the gun tube in a desired position prior to the shape charges being fired. The gun tube may also include one or more end connectors with electrical contacts having a first, extended position, and a second, contracted position, and/or end connectors that can be assembled by hand without the use of tools.
    Type: Grant
    Filed: February 16, 2023
    Date of Patent: May 7, 2024
    Assignee: SWM International, LLC
    Inventors: Dawna Mauldin, Sidney W. Mauldin
  • Publication number: 20230265746
    Abstract: A gun tube for a downhole perforating gun assembly includes a body having a cavity and one or more weights in the cavity. Gravity acts on the weights, which causes the tube body to rotate around its longitudinal axis so the weights are adjacent the lower part of the wellbore in which the gun assembly is positioned when oriented horizontally. This position shape charges in the gun tube in a desired position prior to the shape charges being fired. The gun tube may also include one or more end connectors with electrical contacts having a first, extended position, and a second, contracted position, and/or end connectors that can be assembled by hand without the use of tools.
    Type: Application
    Filed: February 16, 2023
    Publication date: August 24, 2023
    Inventors: Dawna MAULDIN, Sidney W. MAULDIN
  • Patent number: 11624266
    Abstract: A gun tube for a downhole perforating gun assembly includes a body having a cavity and one or more weights in the cavity. Gravity acts on the weights, which causes the tube body to rotate around its longitudinal axis so the weights are adjacent the lower part of the wellbore in which the gun assembly is positioned when oriented horizontally. This position shape charges in the gun tube in a desired position prior to the shape charges being fired. The gun tube may also include one or more end connectors with electrical contacts having a first, extended position, and a second, contracted position, and/or end connectors that can be assembled by hand without the use of tools.
    Type: Grant
    Filed: July 20, 2021
    Date of Patent: April 11, 2023
    Assignee: SWM International, LLC
    Inventors: Dawna Mauldin, Sidney W. Mauldin
  • Publication number: 20210348485
    Abstract: A gun tube for a downhole perforating gun assembly includes a body having a cavity and one or more weights in the cavity. Gravity acts on the weights, which causes the tube body to rotate around its longitudinal axis so the weights are adjacent the lower part of the wellbore in which the gun assembly is positioned when oriented horizontally. This position shape charges in the gun tube in a desired position prior to the shape charges being fired. The gun tube may also include one or more end connectors with electrical contacts having a first, extended position, and a second, contracted position, and/or end connectors that can be assembled by hand without the use of tools.
    Type: Application
    Filed: July 20, 2021
    Publication date: November 11, 2021
    Inventors: Dawna MAULDIN, Sidney W. MAULDIN
  • Patent number: 11078762
    Abstract: A gun tube for a downhole perforating gun assembly includes a body having a cavity and one or more weights in the cavity. Gravity acts on the weights, which causes the tube body to rotate around its longitudinal axis so the weights are adjacent the lower part of the wellbore in which the gun assembly is positioned when oriented horizontally. This positions shape charges in the gun tube in a desired position prior to the shape charges being fired. The gun tube may also include one or more end connectors with electrical contacts having a first, extended position, and a second, contracted position, and/or end connectors that can be assembled by hand without the use of tools.
    Type: Grant
    Filed: March 5, 2019
    Date of Patent: August 3, 2021
    Assignee: SWM International, LLC
    Inventors: Dawna Mauldin, Sidney W. Mauldin
  • Publication number: 20200284126
    Abstract: A gun tube for a downhole perforating gun assembly includes a body having a cavity and one or more weights in the cavity. Gravity acts on the weights, which causes the tube body to rotate around its longitudinal axis so the weights are adjacent the lower part of the wellbore in which the gun assembly is positioned when oriented horizontally. This positions shape charges in the gun tube in a desired position prior to the shape charges being fired. The gun tube may also include one or more end connectors with electrical contacts having a first, extended position, and a second, contracted position, and/or end connectors that can be assembled by hand without the use of tools.
    Type: Application
    Filed: March 5, 2019
    Publication date: September 10, 2020
    Inventors: Dawna Mauldin, Ronald Haasl, Keith Roper
  • Patent number: 10689955
    Abstract: A gun tube for a downhole perforating gun assembly includes a body, a first end, and a second end. A motor is directly or indirectly attached to one or both of the ends and is configured to rotate the gun tube around its longitudinal axis in order to position shape charges in the gun tube in a desired position before firing the shape charges. A sensor may be on the gun tube, a sub-assembly, or an outer casing to detect the relative position of the shape charges and a signal including the position of the shape charges could be sent to a human or machine operator.
    Type: Grant
    Filed: March 5, 2019
    Date of Patent: June 23, 2020
    Assignee: SWM International Inc.
    Inventors: Dawna Mauldin, Ronald Haasl, Keith Roper