Patents by Inventor Ken S. Shoemaker

Ken S. Shoemaker 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).

  • Variable length three-cone rock bit nozzles
    Patent number: 4665999
    Abstract: This invention relates to multi-cone rock bits with three or more nozzles of varying length to affect different flow velocities from each of the nozzles. The nozzles at different lengths create a crossflow of fluid on a borehole bottom to lift detritus therefrom during rock bit drilling operations.
    Type: Grant
    Filed: May 16, 1984
    Date of Patent: May 19, 1987
    Inventor: Ken S. Shoemaker