Patents by Inventor Harry N. Ball

Harry N. Ball 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).

  • Fluid passage formed by diamond insert studs for drag bits
    Patent number: 4303136
    Abstract: Diamond drag bits with a multiplicity of individual diamond insert studs standing-off from the face of the bit require fluid over and around each separate insert to cool and clean the stud. An axially aligned fluid passage formed within the insert stud communicates with a fluid-filled chamber formed by the drag bit. The fluid exits the passage in the stud in front of the diamond cutting face of the stud to assure cooling and cleaning of each insert stud inserted in the face of the drag bit.
    Type: Grant
    Filed: May 4, 1979
    Date of Patent: December 1, 1981
    Assignee: Smith International, Inc.
    Inventor: Harry N. Ball