Patents by Inventor John C. Crownover

John C. Crownover 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).

  • System and Method for Lining an Earthen Formation
    Publication number: 20090022550
    Abstract: A method of lining an earthen formation pit includes covering at least a portion of the pit with a polymer. A portion of the polymer-covered area may be additionally covered with bentonite. The bentonite and polymer combine, when hydrated, to form a layer that is substantially water impermeable. A portion of the formation may be covered by a protective slurry of water and cement. A portion of the formation may be covered by a water-resistant layer such as, for example, a plastic tarpaulin.
    Type: Application
    Filed: July 17, 2007
    Publication date: January 22, 2009
    Inventors: Ronald H. Roesler, John C. Crownover