Patents by Inventor Lothar Koerner

Lothar Koerner 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).

  • Patent number: 8500376
    Abstract: The invention relates to a cutting insert for chip-forming machining, of which at least the top surface, on one side, forms the face (1) and the peripheral, planar side surface, which are located at right angles to one another, form the flanks (2), wherein, downstream of a planar face portion (3) which is adjacent to the flanks and is arranged at a rake angle of 0°, the face terminates, via downwardly sloping planar wall portions (4), in a lower-level, planar chip-forming base (5) and, in the direction of the centre, it slopes up, via upwardly sloping planar wall portions (6), to a central, planar face plateau (7).
    Type: Grant
    Filed: August 21, 2007
    Date of Patent: August 6, 2013
    Assignee: Kennametal Inc.
    Inventors: Lothar Koerner, Carsten Schwaner, Uwe Hahn
  • Publication number: 20100061816
    Abstract: The invention relates to a cutting insert for chip-forming machining, of which at least the top surface, on one side, forms the face (1) and the peripheral, planar side surface, which are located at right angles to one another, form the flanks (2), wherein, downstream of a planar face portion (3) which is adjacent to the flanks and is arranged at a rake angle of 0°, the face terminates, via downwardly sloping planar wall portions (4), in a lower-level, planar chip-forming base (5) and, in the direction of the centre, it slopes up, via upwardly sloping planar wall portions (6), to a central, planar face plateau (7).
    Type: Application
    Filed: August 21, 2007
    Publication date: March 11, 2010
    Inventors: Lothar Koerner, Carsten Schwaner, Uwe Hahn
  • Patent number: 5339342
    Abstract: A fuel assembly for a boiling water reactor includes approximately mutually parallel fuel rods in a bundle having upper and lower ends. A skeleton holding the bundle has a handle, an upper tie plate retained on the handle at the upper end of the bundle, a lower tie plate at the lower end of the bundle, and at least one support element joining together the lower tie plate and the upper tie plate. The skeleton and the bundle are inserted in a fuel assembly case. A redundant support device holds the lower tie plate, the fuel assembly case and the upper tie plate together, when the handle is lifted.
    Type: Grant
    Filed: January 11, 1993
    Date of Patent: August 16, 1994
    Assignee: Siemens Aktiengesellschaft
    Inventors: Werner Meier, Hans-Joachim Lippert, Peter Rau, Lothar Koerner