Patents by Inventor Gunther Marondel

Gunther Marondel 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
  • Priming system for high-temperature stable propellants
    Patent number: 4145969
    Abstract: A priming system for propellants having thermal decomposition points above 180.degree. C. comprising:A. an ignition charge; andB. a booster charge of solid explosive compound containing one or more --NO.sub.2 groups and/or --N.dbd.N end groups and having a deflagration point above 200.degree. C., said booster charge containing an initiating explosive in an amount between 10% and 60% by weight;The amount of the ignition charge A being between 2 and 20 weight % of the booster charge B.
    Type: Grant
    Filed: October 12, 1977
    Date of Patent: March 27, 1979
    Assignee: Dynamit Nobel AG
    Inventors: Heinz Gawlick, Gunther Marondel, Werner Sieglein