Patents Assigned to Modsa (Proprietary) Limited
  • Method of and apparatus for curing tobacco
    Patent number: 4559956
    Abstract: In the curing of tobacco leaf in a curer heated air is circulated through the curer and controlled so that a first temperature is maintained in the curer for a given period of time. During this period the relative humidity level is reduced to a desired level. Thereafter a maximum predetermined temperature difference is maintained between upper and lower zones in the curer to dry the leaf.
    Type: Grant
    Filed: February 28, 1983
    Date of Patent: December 24, 1985
    Assignee: Modsa (Proprietary) Limited
    Inventors: Jan H. De Lange, Ernest Fick
  • Curing of tobacco leaf
    Patent number: 4470422
    Abstract: A method of, and apparatus for, curing tobacco leaf in a curer barn. Air is caused to circulate through the barn to dry the leaf. The temperature of the air is controlled to maintain a predetermined temperature or humidity difference between upper and lower zones inside the barn, within a predetermined tolerance. The result is that the curing process is optimally controlled by the condition of the leaf itself and independently of ambient conditions.
    Type: Grant
    Filed: January 19, 1981
    Date of Patent: September 11, 1984
    Assignee: Modsa (Proprietary) Limited
    Inventors: Barend C. Joubert, Jan H. de Lange