Patents by Inventor Karl Bernetich

Karl Bernetich 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).

  • Liquid molded hollow cell core composite articles
    Publication number: 20030082339
    Abstract: A hollow core composite assembly 10 is provided, including a hollow core base 12 having at least one open core surface 14, a bondable solid film 22 applied to the open core surface 14, at least one dry face ply 30 laid up dry and placed on top of the solid film 22, and a liquid resin 32 applied to the at least one dry face ply 30 and then cured.
    Type: Application
    Filed: October 30, 2001
    Publication date: May 1, 2003
    Inventor: Karl A. Bernetich
  • One-step resin transfer molding of multifunctional composites consisting of multiple resins
    Patent number: 6048488
    Abstract: Multiple resin transfer molding is the simultaneous injection of differing esins in fiber preforms with or without a separation layer. The flow of the resins is controlled by varying the permeabilities of the preforms and the separation layer. The method produces multifunctional hybrid composites made of multilayered preforms and multiple resins. A fundamental advantage of the invention is the simplification of the manufacturing process.
    Type: Grant
    Filed: October 23, 1997
    Date of Patent: April 11, 2000
    Assignee: The United States of America as represented by the Secretary of the Army
    Inventors: Bruce K. Fink, John Gillespie, Emanuele Gillio, Karl Bernetich