Patents by Inventor Kurt Buttner

Kurt Buttner 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).

  • Patent number: 4450881
    Abstract: This invention relates to a roller table for woodworking machines, especially for tenoning and slot mortising machines for the manufacture of window frames, which can be moved in translation along a straight guideway and which is provided, at the end facing away from the guideway, with a longitudinal adjustable supporting plate for the overhanging end of the workpieces.
    Type: Grant
    Filed: July 8, 1983
    Date of Patent: May 29, 1984
    Assignee: Okoma Maschinenfabrik GmbH
    Inventor: Kurt Buttner
  • Patent number: 4331191
    Abstract: A woodworking machine for window frames has at least one vertical tenoning spindle, at least one further spindle for longitudinal profiling disposed diagonally with respect to the first spindle, and a further tenoning spindle fitted at the opposite side of the profiling assembly to that having the first tenoning spindle, a work table for the profiling spindle, and two sliding tables respectively for the first and second tenoning spindles and aligned with the work table of the profiling spindle. The improvement is that at least two first tenoning spindles are fitted one behind the other at an input end of the machine and are followed, in the direction of passage of a workpiece through the machine, by at least two profiling spindles, and then at least two second tenoning spindles.
    Type: Grant
    Filed: April 8, 1980
    Date of Patent: May 25, 1982
    Assignee: Okoma Maschinenfabrik GmbH
    Inventor: Kurt Buttner