Patents by Inventor Robert Koder

Robert Koder 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).

  • High temperature primary galvanic element
    Patent number: 4650680
    Abstract: In view of operating temperatures above 100.degree. C., a silver oxide/zinc cylindrical cell is provided with a housing cup which is enclosed by a sealing element formed of PTFE, and which incorporates a double-layer separator whose inner layer is formed of a semi-permeable ion exchange membrane and whose outer layer is formed of a flexible ceramic material. The element is protected against extreme overpressure, in excess of 65 bar, by a rupture line in the form of an indentation in the bottom of the cup.
    Type: Grant
    Filed: October 3, 1984
    Date of Patent: March 17, 1987
    Assignee: Varta Batterie A.G.
    Inventors: Rolf Brenner, Horst-Udo Jose, Gerd Jung, Robert Koder