Patents by Inventor Erich Schnieder

Erich Schnieder 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).

  • Process for the production of cement in a fluidized bed
    Patent number: 4213790
    Abstract: A process for producing cement wherein preheated, partially calcined powder-form raw material is finally calcined in a fluidized bed and is discharged to a cooler through which a cooling stream of air passes. A part of the cooling air passes into the fluidized bed from below and another part of the cooling air, together with the partially calcined material, passes into the fluidized bed from the side. The rates of material flow to and from the fluidized bed is regulated to maintain a substantially uniform intersticial ratio between the upper and lower regions of the fluidized bed.
    Type: Grant
    Filed: July 24, 1978
    Date of Patent: July 22, 1980
    Assignee: Polysius AG
    Inventors: Klaus Bauer, Wolf Goldmann, Horst Kretzer, Heinrich Weber, Rudiger Beyer, Wilfried Kreft, Frank Schaberg, Rudolf Weber, Herbert Schmelter, Horst Ritzmann, Erich Schnieder, Georg Schepers