Patents by Inventor Werner Ferstl

Werner Ferstl 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 metal alloy for shaping by electrical discharge machining methods
    Patent number: 6514456
    Abstract: The invention concerns the use of a WC—Co cutting metal alloy for a component or a tool insert, which is shaped from a corresponding cutting metal blank by means of an electrical discharge processing method. The WC fraction in the carbide phase of the cutting metal alloy is more than 90 wt %; the binder phase consists mostly of cobalt and is 8 to 15 wt % with reference to the cutting metal alloy. 0.1 to 3 wt % of one or more metals from the group Re, Ge, Ga, Ir, Os, Pd, Ag, Au, Pt, Te, Sb, Rh, and Ru, with reference to the binder phase, are dissolved in the binder phase.
    Type: Grant
    Filed: October 6, 2000
    Date of Patent: February 4, 2003
    Assignee: Plansee Tizit Aktiengesellschaft
    Inventors: Andreas Lackner, Werner Ferstl, Gerhard Kn{overscore (u)}nz, Hans-Peter Martinz, Klaus Prandini
  • Drill bit
    Patent number: 6021857
    Abstract: A masonry drill bit having an active diameter of D, comprising a shaft and a tip 1 for engaging a workpiece, wherein the tip 1 is formed with a plurality of stepped portions shaped to cut a workpiece as the drill bit rotates. By virtue of the drill bit tip 5 configuration as described and claimed herein, a masonry drill bit 1 having improved performance is provided.
    Type: Grant
    Filed: September 17, 1997
    Date of Patent: February 8, 2000
    Assignees: Black & Decker Inc., Plansee Tizit
    Inventors: Rudi Birk, Werner Ferstl, Ronald Huber, Walter Lempach