Patents by Inventor Heinrich Kappelhof

Heinrich Kappelhof 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 holding system for automatic tool changing
    Patent number: 4976575
    Abstract: The invention relates to a tool holding system for automatic tool changing in a machine tool, stamping machine or other such machine, wherein the machine has a spindle which has at its free end a gripping means in the form of a sleeve for a tool which can be inserted and removed by a tool changing system, while a draw rod actuating the sleeve by axial displacement is guided in the spindle, and the tool having at the spindle end a tool holding head with an inverted centering frustum cone which can be engaged by a conical inner surface of the sleeve in its clamping position in order to clamp the tool against the spindle.
    Type: Grant
    Filed: April 12, 1988
    Date of Patent: December 11, 1990
    Assignee: AXA-Entwicklungs- und Maschinenbau- gesellschaft fur produktionstechnisch e anlagen und Gerate mbH
    Inventors: Heinrich Kappelhof, Gottfried Wolf