Patents by Inventor Klas Tübinger

Klas Tübinger 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).

  • Cutting tool for metal working as well as method in the production of cutting tools
    Patent number: 7270504
    Abstract: A cutting tool and a method for the production of cutting tools for metalworking characterized in that the holder body of the tool first is submitted to a surface hardening that results in the formation of compressive stresses in the surface and then submitted to a surface treatment that gives additional contribution of compressive stresses in the surface. In this way, it is allowed to, on one hand, be able to modify/machine or remove parts of or the entire phase-transition layer obtained in the surface hardening at the same time as additional compressive stresses are built up in the surface of a hardened steel material in the tool body.
    Type: Grant
    Filed: May 17, 2004
    Date of Patent: September 18, 2007
    Assignee: Sandvik Intellectual Property AB
    Inventors: Klas Tübinger, Mikael Herdin, Dan Höglund
  • Vibration-dampened tool for working in metallic material
    Patent number: 6929431
    Abstract: A drill for working in metallic materials includes a tool body having located in its front end at least one cutting insert, wherein the tool body is provided with one or several damping elements mounted such that during machining, a relative movement (i.e., sliding and/or deformation) of the tool body and the damping element is allowed to occur.
    Type: Grant
    Filed: June 5, 2003
    Date of Patent: August 16, 2005
    Assignee: Sandvik AB
    Inventors: Marie-Louie Bergholt, Leif Karlsson, Klas Tübinger