Patents by Inventor Orban Olsson

Orban Olsson 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).

  • Rock drilling tool including a drill bit having a recess in a front surface thereof
    Patent number: 5890551
    Abstract: A drill bit for percussive drilling includes a front surface in which cutting inserts are mounted. A recess is formed in the front surface, and a fluid channel extends through the drill bit for supplying flushing fluid to the recess. The recess is completely bordered by an endless land. Some of the cutting inserts are mounted in the land. Others of the cutting inserts are mounted in the recess in order to be cooled and flushed by a cushion of flushing fluid created in the recess.
    Type: Grant
    Filed: March 6, 1997
    Date of Patent: April 6, 1999
    Assignee: Sandvik AB
    Inventors: Per-Olof Liljebrand, Orban Olsson