Patents by Inventor Timo Vartiainen

Timo Vartiainen 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 washing the filter fabric of a filter press
    Patent number: 6071425
    Abstract: A method and apparatus for washing a filter fabric (3) of a filter press. The method includes filtering a material to be filtered containing a liquid and solids through the filter fabric (3) in a filter cell (20), retaining the solids on a surface of the filter fabric (3) thereby forming a filter cake (18) on the filter fabric (3), discharging the filter cake (18) from above the filter fabric (3) to one side of the filter press only, conveying an area of the filter fabric (3) soiled during the previous filtration step to a washing cell (21) for washing the soiled area of the filter fabric (3) and washing the soiled area of the filter fabric (3) in washing cell (21).
    Type: Grant
    Filed: October 22, 1997
    Date of Patent: June 6, 2000
    Assignee: Larox Oy
    Inventors: Timo Vartiainen, Esa Paavola