Patents by Inventor Alfonso Schembri

Alfonso Schembri 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).

  • 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