Patents by Inventor David Leonwill Jones

David Leonwill Jones 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: 10539007
    Abstract: A cement head including a tubular body having a top end and a bottom end, and a borehole arranged through at least a portion of the tubular body; a cement plug arranged in the borehole and configured to exit the cement head upon releasing a retention device; and a spool assembly arranged on the tubular body, wherein the spool assembly comprises a drum rotatable about a central axis and a continuous cable having a first end and a second end, the first end being attached to the drum and the second end being attached to the cement plug, and wherein rotating the drum about the central axis results in spooling or unspooling the continuous cable about the drum.
    Type: Grant
    Filed: February 12, 2015
    Date of Patent: January 21, 2020
    Assignee: HALLIBURTON ENERGY SERVICES, INC.
    Inventors: Ronald Johannes Dirksen, David Leonwill Jones
  • Publication number: 20180313206
    Abstract: A cement head including a tubular body having a top end and a bottom end, and a borehole arranged through at least a portion of the tubular body; a cement plug arranged in the borehole and configured to exit the cement head upon releasing a retention device; and a spool assembly arranged on the tubular body, wherein the spool assembly comprises a drum rotatable about a central axis and a continuous cable having a first end and a second end, the first end being attached to the drum and the second end being attached to the cement plug, and wherein rotating the drum about the central axis results in spooling or unspooling the continuous cable about the drum.
    Type: Application
    Filed: February 12, 2015
    Publication date: November 1, 2018
    Applicants: HALLIBURTON ENERGY SERVICES, INC., HALLIBURTON ENERGY SERVICES, INC.
    Inventors: Ronald Johannes DIRKSEN, David Leonwill JONES
  • Patent number: 7467658
    Abstract: An apparatus for providing heat energy to a fluid, including a housing adapted for connection into a working string and for inserting into a borehole, a flow path for the fluid extending within the housing, a pressure drop device positioned within the flow path, and an actuator for actuating the apparatus between a minimum pressure drop position and a maximum pressure drop position. A method for providing heat energy to a fluid, including the steps of providing an apparatus in a borehole, actuating the apparatus to a maximum pressure drop position, and circulating the fluid through a pressure drop device which is positioned within a flow path in the apparatus.
    Type: Grant
    Filed: December 8, 2004
    Date of Patent: December 23, 2008
    Assignee: Halliburton Energy Services, Inc.
    Inventors: Gerald Edward Kent, David Leonwill Jones