Patents by Inventor Alexandra Hassert

Alexandra Hassert 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).

  • Patent number: 7056361
    Abstract: The invention relates to a device for generating a hydrogen-rich gas from a liquid, hydrogen-containing fuel using a reforming reaction, having feed lines for supplying starting materials and having discharge lines for discharging the reformate, having at least one component for evaporating liquid starting materials, having at least one component for reforming, having at least one component for the catalytic generation of thermal energy, and having at least one component for reducing the carbon monoxide fraction in the reformate, in which device at least two of the components are arranged on a common plate, which comprises a porous layer formed by pressing catalyst material, the reaction starting materials flowing over and/or through the layer.
    Type: Grant
    Filed: September 14, 2000
    Date of Patent: June 6, 2006
    Assignee: NuCellSys GmbH
    Inventors: Andreas Ebert, Markus Portscher, Martin Schüssler, Alexandra Hassert, Ralf Heuser, Oskar Lamla, Tomas Stefanovski
  • Patent number: 6620536
    Abstract: A fuel cell system includes a fuel cell with a cathode space and an anode space that are separated by a polymer electrolyte membrane. The cathode space is supplied with an oxygen-containing gas, and the anode space is supplied with a hydrogen-containing gas. A gas-generation device is provided in which a hydrogen-rich reformate containing carbon monoxide, is produced from a fuel with the aid of steam reforming and/or partial oxidation. A gas-cleaning stage selectively oxidizes the carbon monoxide in the reformate on a suitable catalyst while oxygen is added; and a heat exchanger which is arranged in the gas-cleaning stage, has a cooling medium flowing through it and serves to dissipate thermal energy. According to the invention, to dissipate the thermal energy, the anode off-gas and/or cathode off-gas emerging from the fuel cell and/or a starting-material gas which is present in the fuel cell system flows through the heat exchanger.
    Type: Grant
    Filed: March 9, 2001
    Date of Patent: September 16, 2003
    Assignee: Ballard Power Systems AG
    Inventors: Barbara Strobel, Marco Lippert, Alexandra Hassert, Martin Schuessler
  • Publication number: 20010024745
    Abstract: A device for the selective catalytic oxidation of carbon monoxide contained in a hydrogenous gas mixture flow includes at least one CO oxidation stage having at least one inlet opening for feeding oxidizing gas to the gas mixture flow. At least one flow-through body containing a catalyst is arranged in the gas mixture flow in the CO oxidation stage. The flow-through body fills a flow-through cross section of the gas mixture flow in the CO oxidation stage. The device also contains means for pre-setting the temperature of the body as a function of the load.
    Type: Application
    Filed: December 22, 2000
    Publication date: September 27, 2001
    Inventors: Alexandra Hassert, Marco Lippert, Martin Schussler, Matthias Wolfsteiner
  • Publication number: 20010005498
    Abstract: A multistage device for the selective catalytic oxidation of carbon monoxide contained in a hydrogen-rich gas-mixture stream includes at least three stages, each stage having at least one CO oxidation chamber. An oxidizing medium may be metered to an inlet side of each stage. A common cooling device is provided for the first two stages and an independent cooling device is provided for the third stage.
    Type: Application
    Filed: December 4, 2000
    Publication date: June 28, 2001
    Inventors: Uwe Benz, Alexandra Hassert, Marco Lippert, Martin Schafer, Martin Schussler, Barbara Strobel, Mantred Strohmaier, Alexander Suss, Frank Sussemilch, Matthias Wolfsteiner, Detlef Zur Megede