Patents by Inventor Floyd T. Parnell

Floyd T. Parnell 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).

  • 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