Patents by Inventor Bernhard Walter Borschert

Bernhard Walter Borschert 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).

  • Drilling tool and method for drilling
    Patent number: 9248511
    Abstract: A drilling tool extends in a longitudinal direction and has a drill point and first and second major cutting edges, which extend approximately radially outward. The drill point is arranged eccentrically relative to a central axis, which is the same as the axis of rotation. The second major cutting edge is arranged by a cutting-height difference higher than the first major cutting edge. The first major cutting edge has a shorter radial edge length than the second major cutting edge. A method of utilizing the tool is also disclosed.
    Type: Grant
    Filed: April 19, 2008
    Date of Patent: February 2, 2016
    Assignee: KENNAMETAL INC.
    Inventor: Bernhard Walter Borschert
  • Drilling Tool and Method for Drilling
    Publication number: 20100221078
    Abstract: A drilling tool extends in a longitudinal direction and has a drill point and first and second major cutting edges, which extend approximately radially outward. The drill point is arranged eccentrically relative to a central axis, which is the same as the axis of rotation. The second major cutting edge is arranged by a cutting-height difference higher than the first major cutting edge. The first major cutting edge has a shorter radial edge length than the second major cutting edge. A method of utilizing the tool is also disclosed.
    Type: Application
    Filed: April 19, 2008
    Publication date: September 2, 2010
    Applicant: KENNAMETAL INC.
    Inventor: Bernhard Walter Borschert
  • Drill for drilling, a method for making a drill for drilling, and a cutting tool
    Patent number: 6688817
    Abstract: A method of making a drill comprising a tip (16), a shank (10) and a flute area having chip spaces (12, 14) formed therein, the drill being substantially completely coated with a hard material, and is characterized by applying an abrasive material to merely the tip (16) before coating the drill with the hard material. The drill may more particularly be a solid carbide drill.
    Type: Grant
    Filed: August 10, 2001
    Date of Patent: February 10, 2004
    Assignee: Kennametal Inc.
    Inventors: Bernhard Walter Borschert, Dieter Hermann Mühlfriedel, Karl-Heinz Wendt
  • Drill for drilling, a method for making a drill for drilling, and a cutting tool
    Publication number: 20020046629
    Abstract: A method of making a drill comprising a tip (16), a shank (10) and a flute area having chip spaces (12, 14) formed therein, the drill being substantially completely coated with a hard material, and is characterized by applying an abrasive material to merely the tip (16) before coating the drill with the hard material. The drill may more particularly be a solid carbide drill.
    Type: Application
    Filed: August 10, 2001
    Publication date: April 25, 2002
    Inventors: Bernhard Walter Borschert, Dieter Hermann Muhlfriedel, Karl-Heinz Wendt