Patents by Inventor Tapani Rautiainen

Tapani Rautiainen 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).

  • Humidifier for use in a sauna stove
    Patent number: 5771503
    Abstract: A humidifier for use in a sauna stove includes a high vessel open at the top, forming storage for water to be vaporized. The humidifier is placed in the stone space, or similar heating space, of the sauna stove. When in use, the heat from the heat source vaporizes the water in the vessel, to spread steam to the sauna room. The humidifier includes at least one cup placed on top of the high vessel, in which there is a channel to lead the steam from the lower vessel through the cup to the sauna room.
    Type: Grant
    Filed: May 12, 1997
    Date of Patent: June 30, 1998
    Inventors: Markku Tapani Valimaa, Tapani Rautiainen