Patents by Inventor Carl G. Hagberg

Carl G. Hagberg 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).

  • Falling strand devolatilization apparatus
    Patent number: 3966538
    Abstract: The invention relates to an improved falling strand devolatilization apparatus. Said apparatus includes in combination a flash chamber for devolatilizing an input material fed as heated falling strands from the tubes of a shell and tube heat exchanger mounted in gastight relationship to said flash chamber. Said heat exchanger tubes are fed by a first pump through a headerbonnet with volatiles being removed from said flash chamber by a second pump adapted to evacuate said chamber.
    Type: Grant
    Filed: December 13, 1974
    Date of Patent: June 29, 1976
    Assignee: Monsanto Company
    Inventor: Carl G. Hagberg