Patents by Inventor Helmut Berief

Helmut Berief 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).

  • Cooler and a method for cooling hot bulk material
    Patent number: 6796141
    Abstract: The invention relates to a cooler and to a method for cooling hot bulk material. The hot bulk material is fed on a stationary aerating base through which cooling gas can flow and is transported by means of reciprocating conveyor elements disposed above the aerating base. In the cooler and cooling method, at least two groups of conveyor elements are used which are actuated jointly in the transport direction and separately from one another against the transport direction.
    Type: Grant
    Filed: December 4, 2002
    Date of Patent: September 28, 2004
    Assignee: Polysius AG
    Inventors: Gerhard Kästingschäfer, Wolfgang Rother, Günter Milewski, Martin Uhde, Arthur Berger, Hermann Niemerg, Ludwig Könning, Helmut Berief, Patrick Jean-Marc Brunelot
  • Cooler and a method for cooling hot bulk material
    Publication number: 20030126878
    Abstract: The invention relates to a cooler and to a method for cooling hot bulk material (2), wherein the hot bulk material is fed on a stationary aerating base through which cooling gas can flow and is transported by means of reciprocating conveyor elements disposed above the aerating base. In this case at least two groups of conveyor elements are used which are actuated jointly in the transport direction and separately from one another against the transport direction.
    Type: Application
    Filed: December 4, 2002
    Publication date: July 10, 2003
    Inventors: Gerhard Kastingschafer, Wolfgang Rother, Gunter Milewski, Martin Uhde, Arthur Berger, Hermann Niemerg, Ludwig Konning, Helmut Berief, Patrick Jean-Marc Brunelot
  • Rotary kiln with planetary coolers
    Patent number: 3994677
    Abstract: A plurality of cooling tubes are arranged in planetary fashion about the periphery of the kiln. An inlet for each cooling tube includes a transition member extending from one end of each tube, which transition member comprises the wall of an inclined frustum whose base lies on the end of the cooling tube in a plane perpendicular to the axis of the tube. An inlet tube has one end intersecting the wall of the kiln and its other end intersecting the wall of the transition member, two surface lines of the transition member being tangent to the inlet tube.
    Type: Grant
    Filed: April 14, 1975
    Date of Patent: November 30, 1976
    Assignee: Polysius AG
    Inventors: Hans Mollenkopf, Karl Eiring, Heinz-Herbert Schmits, Antonius Vering, Rainer Philipp, Jurgen Wurr, Otto Heinemann, Helmut Berief