Patents by Inventor Kim E. Shinn

Kim E. Shinn 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: 4304311
    Abstract: A drilling tool apparatus having easily released hard surface wear inserts for use in earth boring operations of the fixed blade stabilizer type is disclosed. Tungsten carbide inserts are preferably used on the wear surfaces of a fixed blade stabilizer and are formed where the tungsten carbide inserts may be released and dropped down the bore hole if it becomes necessary to free the stuck stabilizer by washover operations.A method for easy release of wear resistant inserts as used in the wall contact surfaces of earth boring drill string stabilization tools is disclosed. The inserts are formed and placed in the stabilization tool wall contact surfaces in such a way that the inserts may be released and dropped downhole should it be necessary to washover the stuck drill string.
    Type: Grant
    Filed: October 29, 1979
    Date of Patent: December 8, 1981
    Inventor: Kim E. Shinn