Patents Assigned to Parnell Consultants, Inc.
  • Patent number: 6769152
    Abstract: An improved pipeline pig launcher method and use thereof for conveying a pig into a pipeline including an upright launch barrel having a lower end in communication with the pipeline, a valve affixed to an upper end of the launch barrel and having a full diameter passageway therethrough, an upright pig receiving chamber connected at a lower end to the valve and in vertical alignment with the valve and launch barrel, and a cover removably closing an upper end of the receiving chamber providing, when in an open position, provision for insertion of a pig so that when said valve is open, the pig can pass downwardly into the launch barrel and from there into the pipeline.
    Type: Grant
    Filed: June 19, 2002
    Date of Patent: August 3, 2004
    Assignee: Parnell Consultants, Inc.
    Inventors: Doyle J. Crenshaw, Floyd T. Parnell