Patents by Inventor Norbert Leege

Norbert Leege 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).

  • Actuating arrangement for a tool or workpiece clamping device in a machine tool spindle
    Patent number: 5018916
    Abstract: The actuating arrangement for a tool clamping device (1) has a clamping bar (3) which is axially displaceable in a clamping direction in a machine tool spindle (2) under the effect of a spring arrangement (11) and a firsst wedge transmission assembly (9) which is operable between the spindle and the clamping bar, with freely movable balls which bear respectively against three cone surfaces. They are disposed on a clamping sleeve (13) which is axially displaceable on the clamping bar, on a clamping ring (14) connected to the clamping bar (3), and on a support ring (15) which is arranged stationarily with respect to the spindle. The spring arrangement (11) acts by way of a pressure sleeve (12) which is axially displaceable on the clamping bar.
    Type: Grant
    Filed: August 22, 1990
    Date of Patent: May 28, 1991
    Assignee: Ott Maschinentechnik GmbH
    Inventors: Karl Bauch, Alfred Raff, Helmut Heel, Norbert Leege