Patents by Inventor Rupert Josef Gasser

Rupert Josef Gasser 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).

  • Preparation of tea extracts
    Patent number: 4048344
    Abstract: A process for preparing a tea extract is disclosed in which a heated aqueous tea slurry is confined in a first zone separated from a second zone by a liquid-pervious barrier, a body of extraction liquid is maintained in said second zone to permit diffusion of tea solubles from the tea slurry into the extraction liquid, the volume of the slurry being 0.5 to 2.5 times the volume of the body of extraction liquid. After a suitable contact time, the extraction liquid and slurry are removed from the zones and the tea solubles diffused in the extraction liquid and present in the slurry ultimately are combined, intervening processing including, for example, stripping and removing of aromatic volatiles before a final extract product is provided.
    Type: Grant
    Filed: June 26, 1975
    Date of Patent: September 13, 1977
    Assignee: Societe d'Assistance Technique Pour Produits Nestle S.A.
    Inventors: Rupert Josef Gasser, Steven N. Watercutter
  • Preparation of tea extracts
    Patent number: 3992983
    Abstract: A process for preparing a tea extract is disclosed in which a heated aqueous tea slurry is confined in a first zone separated from a second zone by a liquid-pervious barrier, a body of extraction liquid is maintained in said second zone to permit diffusion of tea solubles from the tea slurry into the extraction liquid, the volume of the slurry being 0.5 to 2.5 times the volume of the body of extraction liquid. After a suitable contact time, the extraction liquid and slurry are removed from the zones and the tea solubles diffused in the extraction liquid and present in the slurry ultimately are combined, intervening processing including, for example, stripping and removing of aromatic volatiles before a final extract product is provided. Apparatus for carrying out the process also is disclosed.
    Type: Grant
    Filed: December 5, 1973
    Date of Patent: November 23, 1976
    Assignee: Societe d'Assistance Technique pour Produits Nestle S.A.
    Inventors: Rupert Josef Gasser, Steven N. Watercutter