Patents by Inventor Hannu Sekki

Hannu Sekki 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).

  • Apparatus for cleaning a filter surface
    Patent number: 6284136
    Abstract: The invention relates to a method and apparatus for cleaning the filter surface (2, 3) of a filter medium in a suction drier. According to the invention, in order to mark the surface to be cleaned, in contact with the surface to be cleaned there is set a sealing surface (4) that forms an essentially closed space for the surface to be cleaned, and that into said closed space, there is conducted cleaning liquid (7) in order to carry out the cleaning.
    Type: Grant
    Filed: July 20, 2000
    Date of Patent: September 4, 2001
    Assignee: Outokumpu Oyj
    Inventors: Timo Tuori, Hannu Sekki, Jorma Ihalainen, Pentti Pirkonen, Hannu Mursunen
  • Combined ultrasonic cleaning and washing of filter disks
    Patent number: 6217782
    Abstract: The invention relates to a method and apparatus for cleaning the filter surface (2, 3) of a filter medium in a suction drier. According to the invention, in order to mark the surface to be cleaned, in contact with the surface to be cleaned there is set a sealing surface (4) that forms an essentially closed space for the surface to be cleaned, and that into said closed space, there is conducted cleaning liquid (7) in order to carry out the cleaning.
    Type: Grant
    Filed: June 21, 1999
    Date of Patent: April 17, 2001
    Assignee: Outokumpu Oyj
    Inventors: Timo Tuori, Hannu Sekki, Jorma Ihalainen, Pentti Pirkonen, Hannu Mursunen