Patents by Inventor Fritz J. G. E. Petzoldt

Fritz J. G. E. Petzoldt 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).

  • Multi-spindle automat
    Patent number: 3984905
    Abstract: A machine having a plurality of workpiece spindles. The spindles are angularly disposed in an indexable support with the spindle axes making one and the same axis with the axis of the support and all being tangent to a common cylinder coaxial with the support axis. Means are provided for driving the spindles and chucks are mounted on one end of the spindles for carrying workpieces for cooperation with tools mounted in the frame in which the support is indexable.
    Type: Grant
    Filed: July 24, 1974
    Date of Patent: October 12, 1976
    Inventor: Fritz J. G. E. Petzoldt