Patents by Inventor Doug A. Lowry

Doug A. Lowry 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).

  • Communication and lock open safety valve system and method
    Patent number: 9903181
    Abstract: A downhole system includes a safety valve system. The safety valve system includes a tubular housing having a hydraulic control chamber, and a lock-open communication sleeve within the tubular housing. The sleeve is longitudinally movable with respect to the tubular housing. The sleeve has a downhole end portion configured to abut and enact downhole movement of a flow tube. The sleeve further has a radial communication sort alignable with the hydraulic control chamber. A method of communicating and locking open the safety valve includes using the sleeve.
    Type: Grant
    Filed: July 10, 2014
    Date of Patent: February 27, 2018
    Assignee: BAKER HUGHES, A GE COMPANY, LLC
    Inventors: Thomas S. Myerley, Doug A. Lowry
  • COMMUNICATION AND LOCK OPEN SAFETY VALVE SYSTEM AND METHOD
    Publication number: 20160010430
    Abstract: A downhole system includes a safety valve system. The safety valve system includes a tubular housing having a hydraulic control chamber, and a lock-open communication sleeve within the tubular housing. The sleeve is longitudinally movable with respect to the tubular housing. The sleeve has a downhole end portion configured to abut and enact downhole movement of a flow tube. The sleeve further has a radial communication sort alignable with the hydraulic control chamber. A method of communicating and locking open the safety valve includes using the sleeve.
    Type: Application
    Filed: July 10, 2014
    Publication date: January 14, 2016
    Applicant: BAKER HUGHES INCORPORATED
    Inventors: Thomas S. Myerley, Doug A. Lowry
  • Method of reducing deflection through a rod piston in a subsurface safety valve
    Patent number: 9151139
    Abstract: An actuation assembly including a sleeve member having a radially outwardly extending projection and a piston having an axis, the piston operatively coupled to the projection of the sleeve member and arranged to exert an actuation force on the projection of the sleeve member for actuating the sleeve member, the actuation force positioned about radially aligned with the axis or radially outwardly from the axis.
    Type: Grant
    Filed: June 2, 2011
    Date of Patent: October 6, 2015
    Assignee: Baker Hughes Incorporated
    Inventors: John E. Burris, Grant R. Thompson, David Z. Anderson, James T. Sloan, Brock Alan Peoples, Doug A. Lowry, Anthony S. Coghill
  • METHOD OF REDUCING DEFLECTION THROUGH A ROD PISTON IN A SUBSURFACE SAFETY VALVE
    Publication number: 20120304853
    Abstract: An actuation assembly including a sleeve member having a radially outwardly extending projection and a piston having an axis, the piston operatively coupled to the projection of the sleeve member and arranged to exert an actuation force on the projection of the sleeve member for actuating the sleeve member, the actuation force positioned about radially aligned with the axis or radially outwardly from the axis.
    Type: Application
    Filed: June 2, 2011
    Publication date: December 6, 2012
    Applicant: Baker Hughes Incorporated
    Inventors: John E. Burris, Grant R. Thompson, David Z. Anderson, James T. Sloan, Brock Alan Peoples, Doug A. Lowry, Anthony S. Coghill