Patents by Inventor Richard Hoss

Richard Hoss 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: 4389952
    Abstract: A holder (3) for replacing the presser foot of a sewing machine comprising a foot plate (3a) attached to a presser bar (1) of the sewing machine (2), and a presser foot sole (8) operatively associated with the holder and being supported in a pendulating and vertically resilient fashion. A fixed blade (5) is adjustably mounted to the foot plate (3a) of the holder (3). A movable blade (9) is fashioned as a two-armed lever and is pivotably supported in a vertical plane. The movable blade (9) operatively engages the lower arm (13a) of a two-armed intermediate toggle joint with a carrier bolt (13). The other arm (13b) of the toggle joint has a curved cam contour (14). A control pin (15) is guided in the curved path of the cam contour (14), said pin being disposed on a control lever (16) supported (16a) at one end by the holder (3). The other end of the control lever is provided with a fork (6a) at the needle bar (6).
    Type: Grant
    Filed: June 25, 1981
    Date of Patent: June 28, 1983
    Assignee: Fritz Gegauf Aktiengesellschaft Bernina-Machmaschinenfabrik
    Inventors: Ernst Dreier, Richard Hoss