Patents by Inventor Ernest M. Cohn

Ernest M. Cohn 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).

  • Rechargeable battery which combats shape change of the zinc anode
    Patent number: 3972727
    Abstract: A rechargeable cell or battery is provided in which shape change of the zinc anode is combatted by profiling the ionic conductivity of the paths between the electrodes so that ion flow is greatest at the edges of the electrodes and least at the centers thereof, thereby reducing migration of the zinc ions from edges to the center of the anode. A number of embodiments are disclosed, wherein the strength and/or amount of electrolyte, and/or the number and/or size of the paths provided by the separator between the electrodes, are varied to provide the desired ionic conductivity profile.
    Type: Grant
    Filed: August 13, 1975
    Date of Patent: August 3, 1976
    Assignee: The United States of America as represented by the Administrator of the National Aeronautics and Space Administration
    Inventor: Ernest M. Cohn