TREA

Ernst A. Siemssen

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  • Gwynedd, PA, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Calciner screw construction
    • Patent number 4,430,057
    • Issue date Feb 7, 1984
    • Selas Corporation of America
    • Donald P. Hoover
    • B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
  • Information Patent Grant

    Furnace lining or burner cup element
    • Patent number 4,237,801
    • Issue date Dec 9, 1980
    • Selas Corporation of America
    • Ernst A. Siemssen
    • F27 - FURNACES KILNS OVENS RETORTS
  • Information Patent Grant

    Method for making furnace lining
    • Patent number 4,216,183
    • Issue date Aug 5, 1980
    • Selas Corporation of America
    • Ernst A. Siemssen
    • C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES