Patents by Inventor Ulrich Fels, deceased

Ulrich Fels, deceased 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: RE36390
    Abstract: The invention pertains to a device for the cooling of edible foams, where a cooling or freezing system for pre-freezing of the foam is directly outlet-connected to an aeration system, a motor driven extruder device designed as combined deep freezing and transport device is outlet-connected to the cooling and freezing system, in which the pre-frozen foam can be cooled down to storage temperature, and the aeration device, the cooling or freezing system and the extruder device are connected together by means of pipes. The device of the present invention is characterized in that the extruder device has at least one double screw system with two screws positioned parallel to each other with their rotational axes. The lands of the screws of the double screw system scrape against the inner cylinder mantle surface of the housing surrounding it.
    Type: Grant
    Filed: September 13, 1996
    Date of Patent: November 16, 1999
    Inventors: Ulrich Fels, deceased, by Elisabeth Fels, legal representative, Erich Windhab, Ralf Hoffmann, Peter von Holdt, Lutz Hahn