Patents by Inventor Barbel Rathjen

Barbel Rathjen 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: 5082676
    Abstract: A cassette for producing coffee by the cup or pot and for use with a liquid receptacle having an internal locking flange. The cassette comprises a ring defining an interior and forming a bottom annular groove to receive the locking flange of the liquid receptacle and thereby to hold the cassette in place therein. The cassette further includes a plurality of ribs connected to and extending across the ring and separating the interior thereof into a multitude of sections, and coffee particles disposed in said sections. A bottom filter and a top filter are secured to the ring and extend across the bottom and top, respectively, of the interior of the ring to hold the flavoring particles therein. Preferably, the cassette is packaged in a sealed vacuum pack; and as it is so packaged, the mass of particles in each section of the cassette is reshaped slightly and formed into a firm conglomerate, which facilitates the subsequent flow of hot water through the cassette.
    Type: Grant
    Filed: January 25, 1991
    Date of Patent: January 21, 1992
    Assignee: Hag Gf Aktiengesellschaft
    Inventors: Graham Love, Karl Schellhaass, Barbel Rathjen, Jurgen Schwarz
  • Patent number: 4996066
    Abstract: A cassette for flavoring a liquid and for use with a liquid receptacle having an internal locking flange. The cassette comprises a ring defining an interior and forming a bottom annular groove to receive the locking flange of the liquid receptacle and thereby to hold the cassette in place therein. The cassette further includes a plurality of ribs connected to and extending across the ring and separating the interior thereof into a multitude of sections, and particles disposed in said sections for flavoring a liquid. A bottom filter and a top filter are secured to the ring and extend across the bottom and top, respectively, of the interior of the ring to hold the flavoring particles therein. Preferably, the cassette is packaged in a sealed vacuum pack; and as it is so packaged, the mass of particles in each section of the cassette is reshaped slightly and formed into a firm conglomerate, which facilitates the subsequent flow of a liquid through the cassette.
    Type: Grant
    Filed: May 15, 1989
    Date of Patent: February 26, 1991
    Assignee: Hag GF Aktiengesellschaft
    Inventors: Graham Love, Karl Schellhaass, Barbel Rathjen, Jurgen Schwarz