Patents by Inventor Annette Heinzel

Annette Heinzel 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).

  • Cladding tubes made of ferritic/martensitic or austenitic steel for nuclear fuel elements/fuels and method for subsequently treating a FeCrA protective layer thereon that is suited for high temperatures
    Patent number: 8202629
    Abstract: A cladding tube configured for use with nuclear fuels or nuclear feel elements and configured for contact with molten lead or molten lead alloys at up to 800° C. The cladding tube includes a tube including at least one of ferritic/martenisitic steel and austenitic steel. An alloy layer of up to 50 ?m thickness is disposed on a surface of the tube and operable for corrosion resistance. The alloy layer includes 0-25% chromium, 3-15% aluminum and 60-97% iron. A method of making the cladding tube includes the use of a pulsed electron beam to melt the alloy layer on the tube.
    Type: Grant
    Filed: June 20, 2006
    Date of Patent: June 19, 2012
    Assignee: Forschungszentrum Karlsruhe GmbH
    Inventors: Annette Heinzel, Georg Mueller, Alfons Weisenburger, Frank Zimmermann, Gustav Schumacher, Vladimir Engelko
  • CLADDING TUBES MADE OF FERRITIC/MARTENSITIC OR AUSTENITIC STEEL FOR NUCLEAR FUEL ELEMENTS/FUELS AND METHOD FOR SUBSEQUENTLY TREATING A FECRA PROTECTIVE LAYER THEREON THAT IS SUITED FOR HIGH TEMPERATURES
    Publication number: 20090035604
    Abstract: A cladding tube configured for use with nuclear fuels or nuclear feel elements and configured for contact with molten lead or molten lead alloys at up to 800° C. The cladding tube includes a tube including at least one of ferritic/martenisitic steel and austenitic steel. An alloy layer of up to 50 ?m thickness is disposed on a surface of the tube and operable for corrosion resistance. The alloy layer includes 0-25% chromium, 3-15% aluminum and 60-97% iron. A method of making the cladding tube includes the use of a pulsed electron beam to melt the alloy layer on the tube.
    Type: Application
    Filed: June 20, 2006
    Publication date: February 5, 2009
    Applicant: Forschungszentrum Karlsruhe GmbH
    Inventors: Annette Heinzel, Georg Mueller, Alfons Weisenburger, Frank Zimmermann, Gustav Schumacher, Vladimir Engelko