Patents by Inventor DENNIS R. LEBEDA

DENNIS R. LEBEDA 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).

  • Method for joule heating diffusion bonded honeycomb core
    Patent number: 10307856
    Abstract: A joule-heating press and method for manufacturing a metallic honeycomb core via diffusion bonding. The method may include printing a pattern of strips of a stop-off material to surfaces of a plurality of sheets of metal at locations where diffusion bonding is not desired and stacking the sheets of metal together in a sequence for forming the honeycomb core. Then the method may include steps of pressing the sheets of metal together between two press plates made of conductive material and applying electric current to the conductive material of the press plates. This allows current to flow through a thickness of the sheets of metal and the sheets of metal are thereby diffusion bonded to each other via joule heating at locations absent the stop-off material. Finally, the method may include a step of expanding the sheets of metal into the honeycomb core.
    Type: Grant
    Filed: November 11, 2015
    Date of Patent: June 4, 2019
    Assignee: Spirit AeroSystems, Inc.
    Inventors: Rahbar Nasserrafi, Dennis R. Lebeda, Michael Basala
  • METHOD FOR JOULE HEATING DIFFUSION BONDED HONEYCOMB CORE
    Publication number: 20170129041
    Abstract: A joule-heating press and method for manufacturing a metallic honeycomb core via diffusion bonding. The method may include printing a pattern of strips of a stop-off material to surfaces of a plurality of sheets of metal at locations where diffusion bonding is not desired and stacking the sheets of metal together in a sequence for forming the honeycomb core. Then the method may include steps of pressing the sheets of metal together between two press plates made of conductive material and applying electric current to the conductive material of the press plates. This allows current to flow through a thickness of the sheets of metal and the sheets of metal are thereby diffusion bonded to each other via joule heating at locations absent the stop-off material. Finally, the method may include a step of expanding the sheets of metal into the honeycomb core.
    Type: Application
    Filed: November 11, 2015
    Publication date: May 11, 2017
    Applicant: SPIRIT AREOSYSTEMS, INC.
    Inventors: RAHBAR NASSERRAFI, DENNIS R. LEBEDA, MICHAEL BASALA