Patents by Inventor Rudy Cesena

Rudy Cesena 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).

  • Bonded composite structure and its fabrication
    Patent number: 6291071
    Abstract: A composite structure is made by first furnishing a skin layer made of a composite material of quartz fibers embedded in an uncured cyanate ester-resin matrix. A transition layer of a first epoxy resin is applied to the skin layer. The skin structure including the skin layer and transition layer is cured at a first temperature and post cured at a second temperature greater than the first temperature. A bonding layer of a second epoxy resin is thereafter applied to the bonding surface of the transition layer, and a substrate is contacted to the exposed face of the bonding layer. The second epoxy resin is cured at a third temperature no greater than the first temperature.
    Type: Grant
    Filed: December 30, 1999
    Date of Patent: September 18, 2001
    Assignee: McDonnell Douglas Helicopter Co.
    Inventors: Paul C. Kuhl, Rudy Cesena, Don J. Bridges, Edward S. Harrison, James L. Melquist
  • Bonded composite structure and its fabrication
    Patent number: 6056846
    Abstract: A composite structure is made by first furnishing a skin layer made of a composite material of quartz fibers embedded in an uncured cyanate ester-resin matrix. A transition layer of a first epoxy resin is applied to the skin layer. The skin structure including the skin layer and transition layer is cured at a first temperature and post cured at a second temperature greater than the first temperature. A bonding layer of a second epoxy resin is thereafter applied to the bonding surface of the transition layer, and a substrate is contacted to the exposed face of the bonding layer. The second epoxy resin is cured at a third temperature no greater than the first temperature.
    Type: Grant
    Filed: July 25, 1996
    Date of Patent: May 2, 2000
    Assignee: McDonnell Douglas Helicopter Co.
    Inventors: Paul C. Kuhl, Rudy Cesena, Don J. Bridges, Edward S. Harrison, James L. Melquist