Patents by Inventor Engstrom Folke

Engstrom Folke 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 reactor system
    Patent number: 4311670
    Abstract: A fluidized bed reactor where material from a prereactor is brought into contact with hot particles separated from flue gases. The particles when removed from the flue gases by a separator are passed to a prereactor having a gas supply and vapor removal port where the hot particles are mixed with fresh feed material and the mixture is passed to the fluidized bed reactor for chemical and/or thermal treatment.
    Type: Grant
    Filed: January 4, 1980
    Date of Patent: January 19, 1982
    Assignee: A. Ahlstrom Osakeyhtio
    Inventors: Jorma J. Nieminen, Engstrom Folke