Patents by Inventor WALTER MAPLES

WALTER MAPLES 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).

  • REVERSE CIRCULATION JUNK BASKET
    Publication number: 20020053428
    Abstract: An apparatus and method for capturing debris and metal cuttings downhole in a wellbore. Fluid is reverse circulated through a tubing positioned in the wellbore. An aperture opens to a larger space within the tubing interior and creates a pressure drop which separates the debris from the fluid. The debris is separated from the fluid and is collected by an interior space within the tubing. The tubing can be retrieved from the wellbore so that the debris is separated from the interior space.
    Type: Application
    Filed: November 30, 1999
    Publication date: May 9, 2002
    Inventor: WALTER MAPLES