Patents Assigned to G.M. Pfaff
  • Patent number: 5113773
    Abstract: A material top feeding device for sewing machines includes an arrangement to reduce the movement component of the top feed foot during its phase of touch-down. For this purpose, the connecting rod drive mechanism includes of a pair of connecting rods, whose connecting joint is fastened rotatably on a rocker arm mounted on the support element. The mounting of the rocker arm is arranged so that in the area of touch-down of the top feed foot, the rocker arm extends essentially in parallel to the connecting rod arranged between it and the top feed foot.
    Type: Grant
    Filed: March 14, 1990
    Date of Patent: May 19, 1992
    Assignee: G.M. Pfaff
    Inventor: Kurt Klundt