Patents by Inventor Rolf David

Rolf David 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: 5733080
    Abstract: The invention relates to a process for milling a turbine-blade profile which extends along a main axis from a workpiece. The turbine blade has a convex suction side and a concave pressure side. The suction side is milled with a milling cutter which rotates about an associated axis of rotation and which has an circular and flat endface defined by a rotating configuration with at least one cutting edge. The milling cutter and the workpiece are moved relative to one another approximately perpendicularly to the main axis. The cutting edge of the milling cutter is located in the endface, and the endface is oriented tangentially to the suction side surface to be milled. The pressure side is milled by with a rotating milling cutter whose rotary axis intersects a plane perpendicular to the main axis at an acute angle.
    Type: Grant
    Filed: March 29, 1996
    Date of Patent: March 31, 1998
    Assignee: Siemens Aktiengesellschaft
    Inventors: Rolf David, Berthold Kinzel