Patents by Inventor Helmut Nitsche

Helmut Nitsche 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).

  • Ear clip having improved securing means
    Patent number: 4723421
    Abstract: A reliable, cheaply producible connection between two parts of an ornamental ear clip comprises an inserted and a receiving nut, the nut supporting a flexible flange adjacent an interior cavity in the nut in which a hollow shaft is present which is capable of elastic transverse movement and which has an engaging element that which engages a retaining element on the pin. The nut, hollow shaft, and engaging element consist of tough and resilient plastic and the flexible flange is a metallic ring that is attached to the nut.
    Type: Grant
    Filed: May 7, 1986
    Date of Patent: February 9, 1988
    Inventor: Helmut Nitsche