Patents by Inventor Seppo Lahtinen

Seppo Lahtinen 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).

  • Rotary feeder
    Patent number: 4461700
    Abstract: A rotary feeder for simultaneous screening and discharging of material from the bottom part of a fluidized bed reactor. The rotary feeder is provided with a rotor having blades, between which pockets are formed. In the rotary feeder there is disposed an air inlet and an air outlet for accomplishing a flow of air through the pocket after it has moved over the inlet of the supply material.
    Type: Grant
    Filed: February 3, 1982
    Date of Patent: July 24, 1984
    Assignee: A. Ahlstrom Osakeyhtio
    Inventor: Seppo Lahtinen