Patents by Inventor Herbert Pietzsch

Herbert Pietzsch 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).

  • Contact electrode for melting and heating furnaces with DC plasma heating
    Patent number: 4434494
    Abstract: The invention relates to a contact electrode for melting and heating furnaces with DC plasma heating wherein the flow body assures a uniform removal of heat over the entire end surface of the contact electrode, a temperature transmitter signals exceptional thermal loads, and a steel head is metallically connected as wear part to the end surface of the contact electrode.
    Type: Grant
    Filed: February 5, 1981
    Date of Patent: February 28, 1984
    Inventors: Herbert Pietzsch, Walter Lachner, Karlheinz Hofmann, Erich P/o/ tzsch, Fred Esser