Patents by Inventor Karl-Heinz Kratzenberg

Karl-Heinz Kratzenberg 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).

  • Mortars for firing smoke candles and explosive shells
    Patent number: 4155285
    Abstract: An improvement in a pot mortar for electrically firing different types of ammunition charges said mortar having a mortar tube, the improvement residing in the mortar tube contains therewithin at least three electrical contacts for electrically contacting ammunition placed therein, one of which contacts is positioned to electrically fire a plurality of different types of ammunition, the other two of which are each positioned to electrically fire only one type of ammunition, each of said two electrical contacts positioned to fire a different type of ammunition.
    Type: Grant
    Filed: April 28, 1975
    Date of Patent: May 22, 1979
    Assignee: Firma Wegmann & Co.
    Inventors: Karl-Heinz Kratzenberg, Helmar Stobbe, Gunter Kullmer