Patents by Inventor Gunther Marondel, deceased

Gunther Marondel, deceased 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).

  • Pyrotechnical sealing cord
    Patent number: 4160062
    Abstract: A pyrotechnical sealing material comprises a heat-foamable synthetic resin capable of being foamed with the aid of a burnable pyrotechnical composition. The sealing material is in the form of a cord having a core made of the pyrotechnical composition and a casing separated from the core by a flexible sheath. The casing is formed from the heat-foamable synthetic resin.
    Type: Grant
    Filed: March 29, 1976
    Date of Patent: July 3, 1979
    Assignee: Dynamit Nobel Aktiengesellschaft
    Inventors: Heinz Gawlick, Axel Homburg, Werner Siegelin, Gunther Marondel, deceased