Patents by Inventor Roland Brobeil

Roland Brobeil 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 for manufacturing cutting tools and cutting tools made thereby
    Patent number: 5413016
    Abstract: In a method of manufacturing tools having attached thereto cutting plates with a cutting edge coated with a hard cutting material, the cutting plates are first positioned on the cutting tool body in a desired position and fixed on the cutting tool body in that desired position by electric spot welding. Subsequently, the soldering material is applied to each cutting plate. Soldering of the cutting plates to the cutting tool body is performed at a temperature of 720.degree. C. to 850.degree. C. in a vacuum of 10.sup.-4 to 10.sup.-6 mbar. In a final step, the cutting tool body with the cutting plates soldered thereto is slowly cooled in the vacuum oven.
    Type: Grant
    Filed: June 11, 1993
    Date of Patent: May 9, 1995
    Assignee: Ledermann GmbH
    Inventors: Uwe Kranz, Roland Brobeil, Bernd Hamann