Patents by Inventor Giovanni Squarzoni

Giovanni Squarzoni 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).

  • Method and device for determining the density of a stream of fibrous material on a cigarette manufacturing machine
    Patent number: 5568818
    Abstract: To determine the density of a stream of fibrous material on a cigarette manufacturing machine, two different measurements are performed, the first of which is capacitive and supplies a first signal as a function of the density of the dry component and of the density of the liquid in the stream of fibrous material, and the second of which is ultrasonic and supplies a second signal indicating the density of the dry component; the second signal is combined with the first signal to obtain a third signal indicating the density of the liquid in the stream of fibrous material; and, from the third and second signals, a fourth signal is obtained indicating the density of the stream of fibrous material as the sum of the density of the dry component and of the liquid in the stream of fibrous material.
    Type: Grant
    Filed: December 2, 1994
    Date of Patent: October 29, 1996
    Assignee: G.D Societa' Per Azioni
    Inventors: Armando Neri, Giancarlo Santin, Giovanni Squarzoni
  • Method and device for determining the density of a stream of fibrous material on a cigarette manufacturing machine
    Patent number: 5566686
    Abstract: To determine the density of a stream of fibrous material on a cigarette manufacturing machine, two different measurements are performed, the first of which is capacitive and supplies a first signal as a function of the density of the dry component and of the density of the liquid in the stream of fibrous material, and the second of which is optical and supplies a second signal indicating the density of the dry component; the second signal is combined with the first signal to obtain a third signal indicating the density of the liquid in the stream of fibrous material; and, from the third and second signals, a fourth signal is obtained indicating the density of the stream of fibrous material as the sum of the density of the dry component and of the liquid in the stream of fibrous material.
    Type: Grant
    Filed: December 2, 1994
    Date of Patent: October 22, 1996
    Assignee: G.D. Societa 'Per Azioni
    Inventors: Rudolf Grossbach, Peter Huber, Ernst-Guenter Lierke, Michael Fiedler, Rainer Weiss, Armando Neri, Giancarlo Santin, Giovanni Squarzoni