Patents by Inventor Helmut Daniel

Helmut Daniel 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).

  • Method and apparatus for mixing fine material
    Patent number: 4491419
    Abstract: A method and apparatus for mixing fine material in which material is extracted from a level located above the cover of a discharge chamber at the base of a mixing silo and returned to the upper part of the silo. Fresh material is delivered to the upper part of the silo, and in a region that is radially inward of that in which the extracted material is returned.
    Type: Grant
    Filed: May 27, 1983
    Date of Patent: January 1, 1985
    Assignee: Krupp Polysius AG
    Inventors: Norbert Ahrens, Helmut Daniel, Gerhard Schacknies