Patents by Inventor James A. Krajnak

James A. Krajnak 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).

  • Flexible composite duct for the transport of cryogenic fuels and oxidizers
    Patent number: 10612716
    Abstract: A multi-ply composite duct comprised of polymeric materials, inter-ply cryogenic epoxy or sealing agent, and structural reinforcement material and methods of making the duct are disclosed. Ducts according to the present disclosure demonstrate the ability to satisfy performance requirements for transfer of single and multiphase fluids at cryogenic temperatures, and resist perforation, occlusion, combustion and galvanic coupling.
    Type: Grant
    Filed: December 15, 2017
    Date of Patent: April 7, 2020
    Assignee: United Launch Alliance, L.L.C.
    Inventors: Connor W. Campbell, Guy Brendan Kayne, James A. Krajnak