Patents by Inventor Josef Haffmans

Josef Haffmans 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: 5771825
    Abstract: The invention relates to an embroidery machine for embroidering embroidery fabric (23), particularly for chain stitching and drop stitching. The embroidery machine has an embroidery head (1), located above the embroidery fabric (23), and an embroidery needle (2) is movably supported in the embroidery head (1) in such a way that by means of drive mechanisms, the embroidery needle (2) is movable up and down and is also rotatable about its longitudinal axis. The embroidery machine also has a stitch plate (3), which is located below the embroidery fabric (23) and on which at least some of the embroidery fabric (23) rests during the embroidering. A thread layer (18) is located on the side of the stitch plate (3) remote from the embroidery fabric (23) and guides the embroidery thread (10) for stitching, and by rotation of the thread layer (18) the embroidery thread (10) can be laid around the embroidery needle (2) that has pierced the embroidery fabric (23).
    Type: Grant
    Filed: October 15, 1996
    Date of Patent: June 30, 1998
    Assignee: ZSK Stickmaschinen GmbH
    Inventors: Manfred Degen, Ludwig Gunther, Hans-Jurgen Heinrich, Roland Thiemer, Franz-Josef Haffmans, Willibert Nusser, Manfred Weidlich, Peter Wiemer
  • Patent number: 4463692
    Abstract: A shuttle embroidery machine having an embroidery frame which is displaceable in accordance with a predetermined program with respect to the machine frame both in vertical and in horizontal directions at its two ends by separate respective drives each, each drive having a motor whose rotation can be transmitted via a transmission as a vertical or a horizontal displacement, respectively, to the embroidery frame and cross guides permitting independent movement of the embroidery frame in the horizontal or vertical directions. In order to increase the precision of positioning of the embroidery frame and at the same time to make its drives simpler and less expensive, at least one additional drive, controlled jointly with the end drives, is arranged between the ends of the embroidery frame for the vertical displacement of the embroidery frame.
    Type: Grant
    Filed: November 10, 1981
    Date of Patent: August 7, 1984
    Inventors: Rolf Berger, Josef Bonnen, Josef Haffmans, Max Schafer, Wolfgang Teetz, Franzjosef Gierse