Patents by Inventor Olle Arph

Olle Arph 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).

  • Method and apparatus for continuous sterilization of a liquid milk based product
    Patent number: 5443857
    Abstract: A method of sterilizing a liquid milk based product comprises indirect preheating of the product and final heating to a sterilization temperature 140.degree.-150.degree. C. by direct steam injection. The product is cooled by so called flash-cooling at which steam corresponding to the added amount of steam is evaporated. The product is cooled by indirect cooling. It is now proposed that the product prior to the flash-cooling is cooled from the sterilization temperature 140.degree.-150.degree. C. to a temperature in the interval 90.degree.-120.degree. C. in an indirect, first cooling step after which the product is cooled by flash-cooling to a temperature of 70.degree.-85.degree. C. The apparatus for sterilization comprises a balance vessel (1) connected to an indirectly working first heat exchanger (4) for heating of the milk based product. A steam injection nozzle (6) is arranged in a pipe line out from the heat exchanger (4).
    Type: Grant
    Filed: March 11, 1994
    Date of Patent: August 22, 1995
    Assignee: Tetra Laval Holdings & Finance S.A.
    Inventors: Olle Arph, Bengt Palm, Bozena Malmgren, Roland Ringstrom