Patents by Inventor Frederick W. Heidt

Frederick W. Heidt 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).

  • Clinch nut and method of installing same
    Patent number: 4370794
    Abstract: A clinch nut having a projecting rectangular pilot and opposed laterally extending flanges. The side edges of the pilot are inclined inwardly from the pilot end face and the flanges have opposed projecting abutment portions extending laterally from the inclined pilot faces to an edge spaced from the side faces of the flanges. The method includes punching a rectangular opening in a panel to receive the nut pilot and ramming the nut abutment portions against the panel to deform the panel beneath the inclined pilot side faces. The nut and nut ram-die are configured to fully seat the nut and fill the spaces beneath the pilot side faces.
    Type: Grant
    Filed: October 1, 1980
    Date of Patent: February 1, 1983
    Assignee: Multifastener Corporation
    Inventors: Alfred A. Bien, Frederick W. Heidt