Patents by Inventor Dennis D. Zadra

Dennis D. Zadra 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: 6248275
    Abstract: A slurry mixture of alcohol, particles and a binding agent undergoes partial solidification and curve-shaped molding in sequence on flat and curved molding surfaces respectively, to produce a curve-shaped foam product suitable for further fabrication as components of curved structures. The flat molding surface is lined with a release cloth on which the slurry initially undergoes partial solidification and is then molded as flexible core material transferred to the curved molding surface for additional shape molding purposes while alcohol removal is completed by evaporation followed by resin filling infusion to form a composite core as the curve-shaped foam product.
    Type: Grant
    Filed: June 29, 1999
    Date of Patent: June 19, 2001
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventors: Dennis D. Zadra, Deborah A. Houghton, Vincent J. Castelli