Patents by Inventor Tracy R. Speer

Tracy R. Speer 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).

  • METHODS TO MANUFACTURE DOWNHOLE TOOLS WITH FINISHED FEATURES AS AN INTEGRAL CAGE
    Publication number: 20120138369
    Abstract: A method of manufacturing a downhole tool includes machining at least one mill blade integral cage comprising a plurality of mill blades arranged around a central axis and securing the at least one mill blade integral cage on a tool body.
    Type: Application
    Filed: December 6, 2010
    Publication date: June 7, 2012
    Applicant: SMITH INTERNATIONAL, INC.
    Inventors: Tracy R. Speer, Dennis Simon, Bruce Nelson, Steven Marek
  • Mill and pump-off sub
    Patent number: 7325631
    Abstract: A downhole mill includes a plurality of cutters extending generally radially from a center region to a gage diameter, wherein the plurality of cutters includes a first serrated cutter blade having a plurality of peaks and valleys along its length. The plurality of cutters includes a second serrated cutter blade having a plurality of peaks and valleys along its length. The plurality of cutters includes a non-serrated cutter blade positioned upon the cutting face between the first serrated cutter blade and the second serrated cutter blade, wherein the peaks of the first serrated cutter blade is radially aligned with the valleys of the second serrated cutter blade. A pump-off sub configured to release a downhole mill includes a dovetail connection maintained by a c-ring in an expanded state.
    Type: Grant
    Filed: July 29, 2005
    Date of Patent: February 5, 2008
    Assignee: Smith International, Inc.
    Inventors: William M. Roberts, Tracy R. Speer