Patents by Inventor Risto Eteläaho

Risto Eteläaho 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).

  • Fluidized bed boiler and a grate element for the same
    Patent number: 8141502
    Abstract: A fluidized bed boiler comprises a furnace whose lower part is equipped with a grate comprising means for supplying fluidizing air into the furnace. The furnace also comprises at least one heat transfer surface extending across the furnace and comprising elongated heat transfer tubes on top of each other. The heat transfer surface is supported on the grate from underneath, substantially over its whole length, in the section extending across the furnace.
    Type: Grant
    Filed: April 19, 2007
    Date of Patent: March 27, 2012
    Assignee: Metso Power Oy
    Inventors: Risto Eteläaho, Vesa Kainu