Patents by Inventor Robert B. Litt

Robert B. Litt 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).

  • Grain drying method and apparatus utilizing fluidized bed
    Patent number: 4790748
    Abstract: A grain drying system includes a fluidized bed for burning grain dust. The hot gases produced by the combustion of the grain dust are directed to a cyclone for cleaning and then to a known grain dryer. The ashes or other particles removed from the hot gases by the cyclone are returned to the fluidized bed.
    Type: Grant
    Filed: April 14, 1987
    Date of Patent: December 13, 1988
    Assignee: Gwyer Grimminger
    Inventors: Robert B. Litt, John M. Corliss