Patents by Inventor Robert Wirsing

Robert Wirsing 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).

  • Filtering means for the filtration of extraction beverages, in particular espresso
    Patent number: 5711880
    Abstract: A filter for the filtration of extraction beverages includes a disk having a plurality of apertures through which the beverage extracted from the material to be extracted passes form the afflux side to the efflux side. Each aperture is formed by cut edges in the disk and by bending a cut edge away from the surface of the disk to form a roof-shaped dome. The filter is formed by a single punching, bending and embossing operation without scrap slug being produced.
    Type: Grant
    Filed: August 22, 1996
    Date of Patent: January 27, 1998
    Assignee: Braun Aktiengesellschaft
    Inventors: Dieter Friedrich, Gunther Seidel, Michael Machlitt, Rolf Eimecke, Dieter Koch, Christof Miltenberger, Robert Wirsing
  • Device for cleaning small objects, especially dentures
    Patent number: 4336816
    Abstract: A device for cleaning small objects, such as dentures, in a tank containing cleaning fluid is provided. The cleaning fluid is electromagnetically agitated. A removable basket having a perforated bottom is positioned in the tank. Releasably coupled to the bottom of the basket is a basket insert which also contains a perforated bottom. A removable screen is mounted between the basket and basket insert.
    Type: Grant
    Filed: September 25, 1980
    Date of Patent: June 29, 1982
    Assignee: Braun Aktiengesellschaft
    Inventors: Eberhard Horz, Robert Wirsing, Gunter Hoffmann