Patents by Inventor David H. Grant

David H. Grant 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).

  • TUBING EXPANSION
    Publication number: 20120181732
    Abstract: A tubing expansion device is adapted to be advanced axially, without rotation, through tubing to be expanded. The device comprises a body and a plurality of expansion members mounted on the body, the expansion members being independently radially movable. The expansion members may be rotatable, or may be non-rotating.
    Type: Application
    Filed: December 13, 2011
    Publication date: July 19, 2012
    Inventors: David Stephenson, Grant Adams, David H. Grant, Neil Andrew Abercrombie Simpson
  • Tubing expansion
    Patent number: 8075813
    Abstract: A tubing expansion device is adapted to be advanced axially, without rotation, through tubing to be expanded. The device comprises a body and a plurality of expansion members mounted on the body, the expansion members being independently radially movable. The expansion members may be rotatable, or may be non-rotating.
    Type: Grant
    Filed: December 5, 2006
    Date of Patent: December 13, 2011
    Assignee: Weatherford/Lamb, Inc.
    Inventors: David Stephenson, Grant Adams, David H. Grant, Neil Andrew Abercrombie Simpson
  • Tubing expansion
    Patent number: 7144243
    Abstract: A tubing expansion device (20) is adapted to be advanced axially, without rotation, through tubing (10) to be expanded. The device (20) comprises a body (22) and a plurality of expansion members (30,32,34) mounted on the body (22), the expansion members (30,32,34) being independently radially movable. The expansion members may be rotatable, or may be non-rotating.
    Type: Grant
    Filed: November 27, 2002
    Date of Patent: December 5, 2006
    Assignee: Weatherford/Lamb, Inc.
    Inventors: David Stephenson, Grant Adams, David H. Grant, Neil Andrew Abercrombie Simpson
  • Tubing expansion with an apparatus that cycles between different diameter configurations
    Patent number: 7063149
    Abstract: A method of expanding tubing comprises the steps: providing a length of expandable tubing; locating an expansion tool, such as a cone, in the tubing; and applying impulses to the tool to drive the tool through the tubing and expand the tubing to a larger diameter. The tubing may be located downhole and may have a solid wall or a slotted wall.
    Type: Grant
    Filed: February 2, 2004
    Date of Patent: June 20, 2006
    Assignee: Weatherford/Lamb, Inc.
    Inventors: Neil Andrew Abercrombie Simpson, David H. Grant, Grant Adams
  • Tubing expansion
    Publication number: 20040154808
    Abstract: A method of expanding tubing comprises the steps: providing a length of expandable tubing; locating an expansion tool, such as a cone, in the tubing; and applying impulses to the tool to drive the tool through the tubing and expand the tubing to a larger diameter. The tubing may be located downhole and may have a solid wall or a slotted wall.
    Type: Application
    Filed: February 2, 2004
    Publication date: August 12, 2004
    Applicant: Weatherford/Lamb, Inc.
    Inventors: Neil Andrew Abercrombie Simpson, David H. Grant, Grant Adams
  • Tubing expansion
    Patent number: 6695065
    Abstract: A method of expanding tubing comprises the steps: providing a length of expandable tubing; locating an expansion tool, such as a cone, in the tubing; and applying impulses to the tool to drive the tool through the tubing and expand the tubing to a larger diameter. The tubing may be located downhole and may have a solid wall or a slotted wall.
    Type: Grant
    Filed: June 19, 2002
    Date of Patent: February 24, 2004
    Assignee: Weatherford/Lamb, Inc.
    Inventors: Neil Andrew Abercrombie Simpson, David H. Grant, Grant Adams
  • Tubing expansion
    Publication number: 20030127774
    Abstract: A tubing expansion device (20) is adapted to be advanced axially, without rotation, through tubing (10) to be expanded. The device (20) comprises a body (22) and a plurality of expansion members (30,32,34) mounted on the body (22), the expansion members (30,32,34) being independently radially movable. The expansion members may be rotatable, or may be non-rotating.
    Type: Application
    Filed: November 27, 2002
    Publication date: July 10, 2003
    Applicant: Weatherford/Lamb, Inc.
    Inventors: David Stephenson, Grant Adams, David H. Grant, Neil Andrew Abercrombie Simpson
  • Tubing expansion
    Publication number: 20030051885
    Abstract: A method of expanding tubing comprises the steps: providing a length of expandable tubing; locating an expansion tool, such as a cone, in the tubing; and applying impulses to the tool to drive the tool through the tubing and expand the tubing to a larger diameter. The tubing may be located downhole and may have a solid wall or a slotted wall.
    Type: Application
    Filed: June 19, 2002
    Publication date: March 20, 2003
    Inventors: Neil Andrew Abercrombie Simpson, David H. Grant, Grant Adams