Patents by Inventor Kolln Bernd

Kolln Bernd 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).

  • Tunnel kiln
    Patent number: 4884969
    Abstract: The invention relates to a tunnel kiln for fine ceramic products comprizing a heating section, a firing section, and a cooling section, where by means of gas conveying means (10) gases are taken in from the region of said cooling section (140, 176, 182) and are conveyed to said firing section (41, 78, 80, 126, 128), whereby at least one additional burner (132) is arranged in a transition region (130) between said firing section (128) and said cooling section (140).
    Type: Grant
    Filed: July 6, 1987
    Date of Patent: December 5, 1989
    Assignee: Ludwig Riedhammer Gmbh
    Inventors: Kolln Bernd, Rudiger Grun