Patents by Inventor Gustav M. Norberg

Gustav M. Norberg 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).

  • Apparatus for treatment of solid material
    Patent number: 5515775
    Abstract: An apparatus is provided that comprises a self-stacking spiral conveyor that traverses through a circulating atmosphere. The atmosphere is manipulated by one or more chambers having an open side adjacent to the perforated sides of the spiral conveyor. Additional control over the circulating atmosphere may be achieved by injection or ejection of gas into one or more chambers.
    Type: Grant
    Filed: May 25, 1994
    Date of Patent: May 14, 1996
    Assignee: Philip Morris Incorporated
    Inventors: John C. Crump, III, Eugene B. Fischer, Robert C. Wilson, Warren D. Winterson, Leif E. B. Jaxmar, Gustav M. Norberg, Lennart F. Olsson
  • Apparatus for treatment of solid material
    Patent number: 5335590
    Abstract: An apparatus is provided that comprises a self-stacking spiral conveyor that traverses through a circulating atmosphere. The atmosphere is manipulated by one or more chambers having an open side adjacent to the perforated sides of the spiral conveyor. Additional control over the circulating atmosphere may be achieved by injection or ejection of gas into one or more chambers.
    Type: Grant
    Filed: October 30, 1992
    Date of Patent: August 9, 1994
    Assignee: Philip Morris Incorporated
    Inventors: John C. Crump, III, Eugene B. Fischer, Robert C. Wilson, Warren D. Winterson, Leif E. B. Jaxmar, Gustav M. Norberg, Lennart F. Olsson