Patents by Inventor Hans-Peter Berz

Hans-Peter Berz 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).

  • Patent number: 4634838
    Abstract: An electric coffee percolator is provided with a fresh water container located above a water heating chamber sized to receive and retain about 30-60% of the volumetric amount of fresh water required for a complete coffee infusion. The heating chamber is separated by a common wall from the water container and receives fresh water therefrom through a non-return value located in the common wall. A ventilating pipe in the water container is slidably amounted in the common wall to project a selected distance into the heating chamber so that the water level in the heating chamber can be adjusted. A check valve in the ventilating tube prevents expulsion of water from the heating chamber into the water container. The bottom wall of the heating chamber is provided with an electric heating element surrounding a well from which a riser pipe through which the hot water is expelled extends upwardly to a water outlet chamber having a cross-sectional area which increase in size from its inlet end to its outlet end.
    Type: Grant
    Filed: May 14, 1984
    Date of Patent: January 6, 1987
    Assignee: Intropa S.A.
    Inventor: Hans-Peter Berz