Patents by Inventor Craig Sneed

Craig Sneed 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: 6454457
    Abstract: A mixing apparatus includes a mixing tube, a liquid inlet, a dry substance inlet and a recirculation mixture inlet. The mixing apparatus is utilized with a tub. A liquid and a dry substance may be mixed in the mixing tube and the mixture may be recirculated so that a liquid, a dry substance and a recirculated mixture may all be mixed in a mixing tube and subsequently utilized in a wellbore. The mixing apparatus includes a valve connected to the liquid inlet. The valve comprises a cylindrical outer housing, a jetting sleeve and a rotatable plug therein. The jetting sleeve is disposed in the outer housing and has a plurality of ports which will direct liquid downwardly and inwardly so that it mixes with the dry substance as the dry substance passes downwardly in the mixing tube. The plug may be rotated in the jetting sleeve to completely cover all the jetting ports to prevent flow into the mixing tube and is rotatable to an open position in which liquid may be allowed to flow through the jetting ports.
    Type: Grant
    Filed: October 13, 2000
    Date of Patent: September 24, 2002
    Assignee: Halliburton Energy Services, Inc.
    Inventors: Michael J. Banse, Paul O. Padgett, Craig Sneed