Patents by Inventor Jouko Ruokonen

Jouko Ruokonen 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).

  • Distilling apparatus
    Patent number: 4917771
    Abstract: A column construction or boiling space in a distilling apparatus, having a pure vapor input connector, an input connector for water to be distilled, numerous heat exchange tubes within the column construction, a pure vapor removal connector, a condensate removal connector, and a connector for removing water to be distilled that has not vaporized. Pure steam is disposed to flow through heat exchange tubes, while impure water to be distilled is disposed to flow through an intermediate space between the heat exchange tubes. The heat exchange tubes are, at both ends, joined to flanges.
    Type: Grant
    Filed: February 25, 1988
    Date of Patent: April 17, 1990
    Assignee: Oy Santasalo-Sohlberg Oy
    Inventors: Lauri Santasalo, Esko Huhta-Koivisto, Jouko Ruokonen