Patents by Inventor Andreas Bernt

Andreas Bernt 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).

  • Publication number: 20130078045
    Abstract: A drill head for a deep hole drilling tool. A drill head body is rotatable about an axis of rotation and has a drilling side and a cavity duct with a chip collecting orifice. A cutting edge has a main and a secondary cutting edge cant, the secondary cutting edge cant arranged on a radial outside of the cutting edge. The main and the secondary cutting edge cants form a cutting edge corner and span a rake which is arranged contiguously to the chip collecting orifice. A first guide pad is arranged in a circumferential half, facing away from the rake, and a second guide pad is arranged diametrically opposite the cutting edge corner. The first guide pad can be offset to the cutting edge corner by the amount of a guide pad angle in the circumferential direction of the drill head The guide pad angle amounts to less than 70°.
    Type: Application
    Filed: April 15, 2011
    Publication date: March 28, 2013
    Inventors: Hermann Randecker, Andreas Bernt