Patents by Inventor David J. Grigger

David J. Grigger 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).

  • Water electrolysis
    Patent number: 5110436
    Abstract: This disclosure is directed to an electrolysis cell forming hydrogen and oxygen at spaced terminals. The anode terminal is porous and able to form oxygen within the cell and permit escape of the gaseous oxygen through the anode and out through a flow line in the presence of backpressure. Hydrogen is liberated in the cell at the opposing solid metal cathode which is permeable to hydrogen but not oxygen so that the migratory hydrogen formed in the cell is able to escape from the cell. The cell is maintained at an elevated pressure so that oxygen liberated by the cell is delivered at elevated pressure without pumping to raise the pressure of the oxygen.
    Type: Grant
    Filed: February 1, 1991
    Date of Patent: May 5, 1992
    Assignee: The United States of America as represented by the Adminstrator of the National Aeronautics and Space Administration
    Inventors: Franz H. Schubert, David J. Grigger