Patents by Inventor Rolf August Brand

Rolf August Brand 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).

  • Pressure electrolyzer and method for operating one such electrolyzer
    Patent number: 7314539
    Abstract: The invention discloses a pressure electrolyzer comprising a pressure vessel (2) and an electrolytic-cell block (3) arranged in the pressure vessel (2) and containing a plurality of electrolytic cells (4) combined in the form of a stack. The electrolytic cells (4) in each case contain anodes (11) and cathodes (12), and an electrolyte-circuit system is provided for supplying an anolyte to the anodes (11) and for supplying a catholyte to the cathodes (12), and wherein the electrolytic-cell block (3) comprises a housing (5) which is sealed relative to the interior of the pressure vessel (2). The invention provides that the housing (5) of the electrolytic-cell block (3), together with the pressure vessel (2), forms at least two chambers (7, 8) separated from each other, which constitute a part of the electrolyte-circuit system and which are defined relative to the electrolytic cells (4) by the housing (5) and relative to the atmosphere by the pressure vessel (2).
    Type: Grant
    Filed: October 12, 2002
    Date of Patent: January 1, 2008
    Assignee: Gesellschaft fuer Hochleistungselektrolyseure zur Wasserstofferzeugung mbH
    Inventors: Rolf August Brand, Pietro d'Erasmo, Hans Hofmann, Marko Raemisch