Patents by Inventor Fritz Kappertz

Fritz Kappertz 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).

  • Needle packaging
    Patent number: 4573575
    Abstract: A plastic needle package is disclosed with parallel partitions defining compartments in which needle constraining projections are provided by controlled deformation of the partition top and to facilitate removal of needles each partition is interrupted between its ends to encourage bending of the package to expose needle extremities for access.
    Type: Grant
    Filed: November 19, 1984
    Date of Patent: March 4, 1986
    Assignee: Singer Spezialnadelfabrik GmbH
    Inventors: Siegmar Bergrath, Fritz Kappertz
  • Sewing needle with two portion shank
    Patent number: 4519330
    Abstract: A needle for use in a sewing machine having a one-way needle clamp, in which the needle is formed with a shank having a minor portion adjacent the free extremity which cooperates with the one-way needle clamp to properly orient the sewing needle, and a major portion extending between the minor portion and the blade which includes a reference surface for locating the blade with respect to the sewing machine looptaker.
    Type: Grant
    Filed: December 28, 1983
    Date of Patent: May 28, 1985
    Assignee: The Singer Company
    Inventors: Thaddeus J. Zylbert, Wolf-Dieter Fuhrmann, Hans Hammer, Fritz Kappertz