Patents by Inventor Swietlik George

Swietlik George 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).

  • Flow stop valve
    Patent number: 8776887
    Abstract: A flow stop valve positionable in a downhole tubular, and a method. The flow stop valve is in a closed position when a pressure difference between fluid outside the downhole tubular and inside the downhole tubular at the flow stop valve is between a threshold value, thereby preventing flow through the downhole tubular. The flow stop valve is in an open position when the pressure difference between fluid outside the downhole tubular and inside the downhole tubular at the flow stop valve is above a threshold value, thereby permitting flow through the downhole tubular.
    Type: Grant
    Filed: April 8, 2013
    Date of Patent: July 15, 2014
    Assignee: Pilot Drilling Control Limited
    Inventors: Swietlik George, Large Robert
  • FLOW STOP VALVE
    Publication number: 20130043045
    Abstract: A flow slop valve (20) positioned in a downhole tubular (6), wherein: the flow slop valve (20) is in a closed position when a pressure difference between fluid outside the downhole tubular (6) and inside the downhole tubular (6) at the flow stop valve (20) is below a threshold value, thereby preventing flow through the downhole tubular; and the flow stop valve (20) is in an open position when the pressure difference between fluid outside the downhole tubular (6) and inside the downhole tubular (6) at the flow stop valve (20) is above a threshold value, thereby permitting flow through the downhole tubular (6).
    Type: Application
    Filed: October 18, 2012
    Publication date: February 21, 2013
    Applicant: PILOT DRILLING CONTROL LIMITED
    Inventors: SWIETLIK George, LARGE Robert
  • FLOW STOP VALVE
    Publication number: 20110036591
    Abstract: A flow stop valve (20) positioned in a downhole tubular (6), wherein: the flow stop valve (20) is in a closed position when a pressure difference between fluid outside the downhole tubular (6) and inside the downhole tubular (6) at the flow stop valve (20) is below a threshold value, thereby preventing flow through the downhole tubular; and the flow stop valve (20) is in an open position when the pressure difference between fluid outside the downhole tubular (6) and inside the downhole tubular (6) at the flow stop valve (20) is above a threshold value, thereby permitting flow through the downhole tubular (6).
    Type: Application
    Filed: February 16, 2009
    Publication date: February 17, 2011
    Applicant: PILOT DRILLING CONTROL LIMITED
    Inventors: Swietlik George, Large Robert