Patents by Inventor Cody Loy Campbell

Cody Loy 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).

  • Equalizing device for safety valves
    Patent number: 11203917
    Abstract: A subsurface safety valve for controlling fluid flow in a well conduit incorporating a pressure equalizing feature. The safety valve includes a body member having a longitudinal bore, a valve actuator having axial movement within the longitudinal bore and a valve that restricts flow through the longitudinal bore. An equalization fluid flow passageway provides a fluid path between the longitudinal bore above the valve and the longitudinal bore below the valve. An equalizing device is located within the equalization fluid flow passageway and configured to resist sand and debris effects on its operation, the equalizing device regulating flow through the equalization fluid flow passageway and operated by the valve actuator prior to opening the valve.
    Type: Grant
    Filed: January 28, 2020
    Date of Patent: December 21, 2021
    Assignee: Halliburton Energy Services, Inc.
    Inventors: James Dan Vick, Jr., Cody Loy Campbell, Jimmie Robert Williamson, Bharat B. Pawar
  • EQUALIZING DEVICE FOR SAFETY VALVES
    Publication number: 20200256159
    Abstract: A subsurface safety valve for controlling fluid flow in a well conduit incorporating a pressure equalizing feature. The safety valve includes a body member having a longitudinal bore, a valve actuator having axial movement within the longitudinal bore and a valve that restricts flow through the longitudinal bore. An equalization fluid flow passageway provides a fluid path between the longitudinal bore above the valve and the longitudinal bore below the valve. An equalizing device is located within the equalization fluid flow passageway and configured to resist sand and debris effects on its operation, the equalizing device regulating flow through the equalization fluid flow passageway and operated by the valve actuator prior to opening the valve.
    Type: Application
    Filed: January 28, 2020
    Publication date: August 13, 2020
    Inventors: James Dan Vick, JR., Cody Loy Campbell, Jimmie Robert Williamson, Bharat B. Pawar