Patents by Inventor Clarence C. Smith

Clarence C. Smith 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).

  • Directional drilling apparatus
    Patent number: 4153119
    Abstract: A device for facilitating directional drilling of small diameter holes radially of a mine long hole comprising a segmented sleeve for movement through a guide channel in a main drill unit. A small bit is driven by a flexible shaft which passes through the segmented sleeve. The segmented sleeve remains partially in the guide channel and extends partially out of the guide channel in a straight line from the guide channel. The segments are joined in a manner permitting a 90.degree. turn in the guide channel but allowing no curvature in the portion of the segmented sleeve extending from the guide channel.
    Type: Grant
    Filed: April 10, 1978
    Date of Patent: May 8, 1979
    Assignee: Continental Oil Company
    Inventors: Tibor O. Edmond, Rondon L. Schroeder, Clarence C. Smith