Patents by Inventor Per Olof Ekeblad

Per Olof Ekeblad 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 cooling a product using a condensed gas
    Patent number: 5799506
    Abstract: A method of chilling, cooling or likewise refrigerating a product with the aid of the cold content of a condensed gas, wherein the product, preferably in a gas or liquid state, is caused to pass at least one product-cooling heat-exchanger. According to the invention, the condensed gas is vaporized in at least one evaporation heat-exchanger and the vaporized gas is delivered to the product-cooling heat-exchanger for cooling the product therein. The gas heated by the product in the product-cooling heat-exchanger is then returned to the evaporation heat-exchanger for vaporization of the condensed gas therein. The invention also relates to an arrangement for use in carrying out the method.
    Type: Grant
    Filed: September 6, 1996
    Date of Patent: September 1, 1998
    Assignee: AGA AB
    Inventors: Sven-Ake Johansson, Per Olof Ekeblad