Patents by Inventor Charles Wintill

Charles Wintill 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).

  • Seal stack for sliding sleeve
    Patent number: 7363981
    Abstract: A method and apparatus for sealing a tool for use in a wellbore is provided. The seal is configured to be disposed in a tool comprising a ported sliding sleeve and a ported housing. The tool may be actuable between a closed and an open position. The seal is configured so that one side of the seal acts as a flow restrictor to protect the other side of the seal from damage during actuation of the tool under pressurized conditions.
    Type: Grant
    Filed: December 30, 2003
    Date of Patent: April 29, 2008
    Assignee: Weatherford/Lamb, Inc.
    Inventors: Robert Coon, Khai Tran, Antonio Flores, Charles Wintill
  • Seal stack for sliding sleeve
    Publication number: 20050139362
    Abstract: A method and apparatus for sealing a tool for use in a wellbore is provided. The seal is configured to be disposed in a tool comprising a ported sliding sleeve and a ported housing. The tool may be actuable between a closed and an open position. The seal is configured so that one side of the seal acts as a flow restrictor to protect the other side of the seal from damage during actuation of the tool under pressurized conditions.
    Type: Application
    Filed: December 30, 2003
    Publication date: June 30, 2005
    Inventors: Robert Coon, Khai Tran, Antonio Flores, Charles Wintill