Patents by Inventor Horst Kalestra

Horst Kalestra 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).

  • Clamping device for individual tools
    Patent number: 5244322
    Abstract: A clamping device for individual tools has a spindle and a pulling member nnected inside the spindle. The pulling member has a conical clamping and centering element projection from the spindle. A tool holder has an end face with a recess, the recess having at least one conical mantle surface. The conical mantle surface cooperates with the conical clamping and centering element for clamping and centering the tool holder at the spindle.
    Type: Grant
    Filed: July 17, 1992
    Date of Patent: September 14, 1993
    Assignee: Gebr. Heller Maschinenfabrik Gesellschaft mit beschrankter Haftung
    Inventors: Ernst Schweizer, Horst Kalestra