Patents by Inventor Jurgen Bieneck

Jurgen Bieneck 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).

  • Method of making a sintered body having an internal channel
    Patent number: 4881431
    Abstract: A drilling tool having at least one helical fluid flow channel at its interior, composed of a hard metal core having an exterior surface and a hard metal tubular casing having an interior surface, the casing enclosing the core with their surfaces in firm contact so that the core and casing form a composite body, each channel being formed as a groove in the surface of the core or casing.
    Type: Grant
    Filed: May 23, 1988
    Date of Patent: November 21, 1989
    Assignee: Fried. Krupp Gesellscahft mit beschrankter Haftung
    Inventor: Jurgen Bieneck
  • Drilling tool formed of a core-and-casing assembly
    Patent number: 4813823
    Abstract: A drilling tool which has at least one helical fluid flow channel at its interior, is composed of a hard metal core having an exterior surface and a hard metal tubular casing having an interior surface. The casing encloses the core with their surfaces in firm contact so that the core and casing form a composite body. Each channel is formed as a groove in the surface of the core or casing.
    Type: Grant
    Filed: January 14, 1987
    Date of Patent: March 21, 1989
    Assignee: Fried. Krupp Gesellschaft mit beschrankter Haftung
    Inventor: Jurgen Bieneck