Patents by Inventor Gunter Gutmann

Gunter Gutmann 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: 5364713
    Abstract: A storage battery cell based on the principle of the oxygen cycle, having a block-shaped, gastightly sealed cell housing in which the rectangular electrode plates of different polarity are stacked. The electrode plates are electrically connected via current collector lugs to positive and negative terminal pillars of corresponding polarity passed through the wall of the same housing side. In order to achieve a longer service life of the cell, the electrode plates are arranged in parallel with the housing wall of the terminal pillars and are enclosed in an equidistant manner on all four peripheral sides of the electrode plates by the walls of the cell housing. All the electrode plates have in each case a central hole on whose inner edge the current collector lugs are mounted, the current collector lugs being routed elastically in the duct formed by the central holes to the terminal pillars of the corresponding polarity.
    Type: Grant
    Filed: June 3, 1993
    Date of Patent: November 15, 1994
    Assignee: Daimler-Benz AG
    Inventors: Klaus Von Benda, Gunter Gutmann, Wolfgang Weger
  • Patent number: 4237196
    Abstract: An electrolyte glass for use as the solid electrolyte in high-temperature galvanic batteries, for example a sodium-sulfur battery. The glass electrolyte has relatively low resistivity and high corrosion resistance and is easily worked by glass manufacturing techniques. The composition of the glass electrolyte according to the invention is defined by xNa.sub.2 O.multidot.ySiO.sub.2 .multidot.zAl.sub.2 O.sub.3.
    Type: Grant
    Filed: March 19, 1979
    Date of Patent: December 2, 1980
    Assignees: Deutsche Automobilgesellschaft mbH, Jenaer Glaswerk Schott & Gen.
    Inventors: Gunter Gutmann, Holger Kistrup, Friedrich G. K. Baucke, Gerd M/ller
  • Patent number: 4215184
    Abstract: The heat transfer in a nickel-oxide/hydrogen battery cell is substantially improved by increasing the thermal conductivity in the axial direction of the electrode stack. This improvement in thermal conductivity is due principally to the construction of the negative electrode containing catalyst as an integral part of the gas diffusion element, thus reducing the number of components in an electrode unit of the battery stack from six to four.
    Type: Grant
    Filed: August 6, 1979
    Date of Patent: July 29, 1980
    Assignee: Firma Deutsche Automobilgesellschaft mbH
    Inventors: Gunter Gutmann, Gabor Benczur-Urmossy
  • Patent number: 4117206
    Abstract: Nickel/hydrogen cells have a long cycle life and other attributes making them desirable for electric vehicle applications, but their cost is high. Cost reduction is obtained by the use of positive electrodes with high capacity per unit area, e.g. porous sintered nickel oxide electrodes, which contain absorbed therein major quantities of the electrolyte. The structure of positive and hydrophilic negative electrodes and of separators is specially adapted for this purpose.
    Type: Grant
    Filed: August 17, 1977
    Date of Patent: September 26, 1978
    Assignee: Deutsche Automobilgesellschaft GmbH
    Inventors: Heinz Plust, Gunter Gutmann