Patents Assigned to Intertaba, S.p.A.
  • Control process and apparatus for the production of cigarette filters
    Patent number: 5116298
    Abstract: To improve quality control a cigarette filter manufacturing line is provided with a testing station which periodically removes a filter to test the diameter and resistance to draw. The mean diameter and RTD of a number of filters is calculated and compared to acceptable ranges. Adjustments are made to the manufacturing line to correct any unacceptable values according to a set of priorities dependent on the degree and sense of the inaccuracies.
    Type: Grant
    Filed: July 13, 1990
    Date of Patent: May 26, 1992
    Assignee: Intertaba, S.p.A.
    Inventors: Luigi Bondanelli, Mauro Sirani, Alfonso Schembri, Dante Boido