Patents by Inventor Randall L. Hebert

Randall L. Hebert 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).

  • Cutting and pulling tool with double acting hydraulic piston
    Patent number: 9366101
    Abstract: A cutting and pulling tool has a piston responsive to flow therethrough with an orifice to create backpressure to drive the piston uphole to rotate the blades outwardly such as in an expanded section of tubular below a transition from a smaller tubular dimension. The extended cutters are pulled to the transition and an overpull determines that the desired location has been reached. The overpull force is removed and fluid flow and rotation is commenced to cut. The blades extend to a position perpendicular to the tool axis so that they are supported off a radial housing surface as the weight of the cut string above is supported on the blades. The string is pulled up and supported with slips on a rig floor at which point weight is slacked off and a plug is landed in the top of the piston to push it down to remove the tool.
    Type: Grant
    Filed: October 4, 2012
    Date of Patent: June 14, 2016
    Assignee: Baker Hughes Incorporated
    Inventors: Robbie B. Colbert, Randall L. Hebert, Joshua C. Joerg, Mary L. Laird
  • Cutting and Pulling Tool with Double Acting Hydraulic Piston
    Publication number: 20140096947
    Abstract: A cutting and pulling tool has a piston responsive to flow therethrough with an orifice to create backpressure to drive the piston uphole to rotate the blades outwardly such as in an expanded section of tubular below a transition from a smaller tubular dimension. The extended cutters are pulled to the transition and an overpull determines that the desired location has been reached. The overpull force is removed and fluid flow and rotation is commenced to cut. The blades extend to a position perpendicular to the tool axis so that they are supported off a radial housing surface as the weight of the cut string above is supported on the blades. The string is pulled up and supported with slips on a rig floor at which point weight is slacked off and a plug is landed in the top of the piston to push it down to remove the tool.
    Type: Application
    Filed: October 4, 2012
    Publication date: April 10, 2014
    Applicant: BAKER HUGHES INCORPORATED
    Inventors: Robbie B. Colbert, Randall L. Hebert, Joshua C. Joerg, Mary L. Laird