Patents by Inventor Kent Hansen

Kent Hansen 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).

  • Publication number: 20070269701
    Abstract: SOFC cell comprising a metallic support 1 ending in a substantially pure electron conducting oxide, an active anode layer 2 consisting of doped ceria, ScYSZ, Ni—Fe alloy, an electrolyte layer 3 consisting of co-doped zirconia based on oxygen ionic conductor, an active cathode layer 5 and a layer of a mixture of LSM and a ferrite as a transition layer 6 to a cathode current collector 7 of single phase LSM. The use of a metallic support instead of a Ni—YSZ anode support increases the mechanical strength of the support and secures redox stability of the support. The porous ferrite stainless steel ends in a pure electron conducting oxide so as to prevent reactivity between the metals in the active anode which tends to dissolve into the ferrite stainless steel causing a detrimental phase shift from ferrite to austenite structure.
    Type: Application
    Filed: June 9, 2005
    Publication date: November 22, 2007
    Applicant: RISOE NATIONAL LABORATORY
    Inventors: Peter Larsen, Mogens Mogensen, Soren Linderoth, Kent Hansen, Weiguo Wang
  • Publication number: 20050016864
    Abstract: A working electrode for an electrochemical reactor, the electrochemical reactor comprising a working electrode, a counter electrode, and an ion-selective electrolyte; the working electrode comprising an electric conductive ceramic oxide material having the general formula: A2A?(1?x)ByB?(1?y)O(3??) wherein A and A? designate first substitution metals of similar sizes, said first substitution metals having a high efficiency for reducing vacancies for oxygen ions, 0?x?1; B and B? designate second substitution metals of similar sizes, said second substitution metals being of smaller sizes, said second substitution metals being of smaller sizes than those of said first substitution metals, and having a high transition efficiency between oxidation states, 0?y?1; O designates oxygen; and ? is a small number, positive or negative, that allows for compensation of differences in valences of said metals. An electrochemical reactor comprising said working electrode.
    Type: Application
    Filed: May 21, 2002
    Publication date: January 27, 2005
    Inventors: Henrik Christensen, Kent Hansen
  • Patent number: 5722586
    Abstract: A portable desk is disclosed for hanging from the rear portion of a seat back. The desk includes a table board having substantially planer upper and lower surfaces, a top portion and a bottom portion. A pair of mounting brackets are provided with each such bracket having a mounting portion securable to the table board bottom surface and an attachment portion extending beyond the top portion of the table board. The attachment portion includes connection members for releasable attachment to the top of a seat back. Support members extend from the table board bottom surface for bracing the table board against the rear surface of a seat back to define the operational angle of the desk relative to the seat back. Finally, a support ledge is disposed along the upper table board surface at the bottom portion to provide a brace for materials placed on the table board upper surface during the use of the desk.
    Type: Grant
    Filed: May 28, 1996
    Date of Patent: March 3, 1998
    Inventor: David Kent Hansen