Patents by Inventor Werner Mallener

Werner Mallener 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).

  • Dispersoid-reinforced electrode
    Patent number: 6180277
    Abstract: In a dispersoid-reinforced electrode with a net-like open pore structure and a ceramic and a metallic meshwork, ceramic particles with an average particle diameter of less than 100 nm are homogeneously distributed in the metallic network thereby reinforcing the electrode.
    Type: Grant
    Filed: May 26, 1999
    Date of Patent: January 30, 2001
    Assignee: Forschungszentrum J{umlaut over (u)}lich GmbH
    Inventors: Rolf Wilkenhöner, Robert Vassen, Detlev Stöver, Hans Peter Buchkremer, Werner Mallener
  • Method of storing spent nuclear fuel elements
    Patent number: 4756871
    Abstract: For safety in storage and transport of nuclear fuel elements outside a nuclear reactor core, they are provided with a coating of a neutron-absorbing substance from a liquid phase, e.g. by immersion, spraying or pouring, utilizing a melt, a solution or immersion so that the possibility of critical mass attainment is eliminated or minimized.
    Type: Grant
    Filed: December 7, 1984
    Date of Patent: July 12, 1988
    Assignee: Kernforschungsanlage Julich GmbH
    Inventor: Werner Mallener
  • Method of storing spent nuclear fuel elements
    Patent number: 4756869
    Abstract: For safety in storage and transport of nuclear fuel elements outside a nuclear reactor core, they are provided with a coating of a neutron-absorbing substance from a liquid phase, e.g. by immersion, spraying or pouring, utilizing a melt, a solution or immersion so that the possibility of critical mass attainment is eliminated or minimized.
    Type: Grant
    Filed: March 17, 1986
    Date of Patent: July 12, 1988
    Assignee: Kernforschungsanlage Julich GmbH
    Inventor: Werner Mallener
  • Method and device for reducing the activity of a gas-cooled stacked-ball nuclear reactor
    Patent number: 4735767
    Abstract: A quenching element of the size and shape of a graphite nuclear fuel ball is introduced to the stacked balls of a stacked ball nuclear reactor core to release a neutron absorbing substance upon being heated to a predetermined temperature, thereby controlling the reactivity of the reactor by causing this substance, which may be a gadolinium compound, to deposit upon the graphite surfaces of the fuel element balls.
    Type: Grant
    Filed: August 27, 1986
    Date of Patent: April 5, 1988
    Assignee: Kernforschungsanlage Julich GmbH
    Inventors: Werner Mallener, Theodor Overhoff
  • Method of and device for the reduction of reactivity of a nuclear reactor core
    Patent number: 4681732
    Abstract: A method of operating a gas-cooled nuclear reactor having graphite fuel elements in which, to reduce the reactor, a quenching element is introduced which takes a particle of a reaction-reducing substance in a sheath which will melt or release the substance in vapor form so that the substance can penetrate in gaseous form through the surrounding graphite body and deposit upon fuel elements.
    Type: Grant
    Filed: October 3, 1984
    Date of Patent: July 21, 1987
    Assignee: Kernforschungsanlage Julich GmbH
    Inventors: Werner Mallener, Theodor Overhoff