Patents by Inventor Gunter Twiefel

Gunter Twiefel 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).

  • Arrangement for automatically changing clamping jaws of the chuck of a machine tool
    Patent number: 4313252
    Abstract: An arrangement for automatically changing clamping jaws of the chuck of a machine tool having a turning carriage and a cross-slide rest. A clamping jaw magazine has guides for the clamping jaws stored therein which may be aligned with the clamping jaw guides of the chuck. A transfer device has a transfer element which is displaceable in the direction of the alignment guides, and this transfer element is provided on the cross-slide rest.
    Type: Grant
    Filed: November 5, 1979
    Date of Patent: February 2, 1982
    Assignee: Gildemeister AG
    Inventors: Joachim Kuska, Gunter Twiefel