Patents by Inventor Magnus Aspeby

Magnus Aspeby 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).

  • Tool carrier
    Patent number: 6045308
    Abstract: The invention relates to a tool carrier with a coupling end (2) arranged on the tool machine side and a tool holder (9) arranged on the tool side, a surface (16) with a radial projection being provided internally in the coupling end of the tool machine side, which surface is machineable through the opening of the coupling end of the tool machine side. In said surface (16) is/are provided one or several borings (15) for a static and dynamic balancing of the tool machine side coupling end (2) of the tool carrier. Inter alia, this can provide both a static and a dynamic balancing.
    Type: Grant
    Filed: January 16, 1998
    Date of Patent: April 4, 2000
    Assignee: Sandvik AB
    Inventors: Peter Frank, Rudi Holland-Moritz, Dietmar Kurschner, Magnus Aspeby
  • Cutting insert with twisted chip surface
    Patent number: 5810521
    Abstract: An indexable cutting insert comprises an upper surface, a bottom surface and side surface extending between said two surfaces. Between two adjacent cutting corners, a rake surfaces is formed such that the rake angle decreases with increasing cutting depth. In this way the cutting edge is reinforced towards a maximal cutting depth. This configuration is favorable, for example, at the machining of materials with a tendency of surface hardening.
    Type: Grant
    Filed: December 23, 1996
    Date of Patent: September 22, 1998
    Assignee: Sandvik AB
    Inventors: Goran Pantzar, Per Nilsson, Magnus Aspeby
  • Arrangement in a rotatable device to protect against over-tightening
    Patent number: 5795116
    Abstract: A rotatable device, such as a screw, a bolt, etc., comprises a cylindrical clip (4) inserted into a bore (3) in the head of the rotatable device. The clip (4) is compressed to a certain extent when inserted into the bore in order to confer to the clip a springing effect on the wall of the bore. Further, the clip comprises a socket for the insertion of a suitable turning key. When turning the key, only a maximum torque is transferable to the rotatable device. If this value is exceeded, the clip starts sliding in the bore.
    Type: Grant
    Filed: March 10, 1997
    Date of Patent: August 18, 1998
    Assignee: Sandvik AB
    Inventors: Peter Frank, Klaus Kraft, Erwin Nitz, Magnus Aspeby
  • Cutting insert with twisted relief surface
    Patent number: 5447396
    Abstract: A cutting insert, preferably for milling cutters, comprises an upper side or chip surface, a bottom surface and side surfaces extending between the upper and bottom surfaces. At least one of the side surfaces having a relief surface adjacent to a cutting edge, which relief surface is helically twisted along the cutting edge so that the relief or clearance angle decreases with increasing cutting depth. This arrangement makes it possible to obtain an equally large clearance along the cutting edge even with a negative inclination of the cutting insert in the milling cutter body.
    Type: Grant
    Filed: January 24, 1994
    Date of Patent: September 5, 1995
    Assignee: Sandvik AB
    Inventors: Goran Pantzar, Per Nilsson, Magnus Aspeby