Patents Represented by Law Firm Baumbaugh, Graves, Donohue & Raymond
  • Patent number: 4910684
    Abstract: To facilitate a smooth and quick start-up of a rotary kiln, a Fuzzy Logic Control system is proposed, the principal feature of which is to mandate control actions to decrease the specific heat consumption along a straight line from an initial high value to a steady-state value established for the kiln, and then to switch over to an existing steady-state fuzzy logic control mode. In the start-up phase, further process variables are preferably measured and monitored against reference values to mandate concurrent control actions influencing the Fuzzy Logic Control system in a weighted manner.
    Type: Grant
    Filed: August 5, 1988
    Date of Patent: March 20, 1990
    Assignee: F. L. Smidth & Co. A/B
    Inventors: Jens J. Ostergaard, Klaus Gadeberg