Patents by Inventor Richard J. Dusman

Richard J. Dusman 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: 4531395
    Abstract: Modular male and female drawbead structures comprise wafers of varying thickness which abut each other and are longitudinally wholly or partially aligned relative to each other in respective slots of die binders. The male structure has a body portion including a base wall and side walls which match and are spaced from like walls of a respective slot. A bead portion projects from an outer wall of the body portion and is joined thereby across concave shoulders. The female structure has a body portion including a base wall seating on the matching base wall of a respective slot and side walls which match and are spaced from like walls of a respective slot. A groove portion in the outer wall of the female module interfits with the bead portion and is joined to such outer wall by convex shoulders which match the concave shoulders.
    Type: Grant
    Filed: September 14, 1984
    Date of Patent: July 30, 1985
    Assignee: General Motors Corporation
    Inventors: Richard J. Dusman, Harmon D. Nine