Patents by Inventor Erkki Rautiainen

Erkki 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).

  • Planetary gear provided with friction planet wheels
    Patent number: 4235128
    Abstract: The invention concerns a planetary gear with friction planet wheels, especially for high rotational speeds. One of the gear shafts is connected to a flange further connected to the friction planet wheels transmitting the power. The planet wheels form the sole bearing for the gear casing and both gear shafts.
    Type: Grant
    Filed: March 21, 1978
    Date of Patent: November 25, 1980
    Inventors: Seppo Kanervo, Erkki Rautiainen