Patents by Inventor Salvatore Rizzoli

Salvatore Rizzoli 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).

  • Patent number: 5267577
    Abstract: A device for transferring cigarette portions from a dual-rod production machine to a filter assembly machine, wherein a rotary transfer unit presents a number of heads, each having two seats for two respective portions of two continuous cigarette rods, and each rotating in such a manner as to move the respective seats along respective circular paths; the transfer unit being connected to a conveyor having first and second seats traveling along respective paths respectively tangent to the circular paths of the seats on the transfer heads at a loading station, and tangent to each other at a station wherein the cigarette portions are unloaded.
    Type: Grant
    Filed: February 5, 1992
    Date of Patent: December 7, 1993
    Assignee: G. D. Societa per Azioni
    Inventors: Salvatore Rizzoli, Roberto Polloni, Bruno Belvederi
  • Patent number: 5076290
    Abstract: A method of manufacturing filter-tipped cigarettes, whereby a first and second series of cigarette portions, obtained by transversely cutting two continuous cigarette rods travelling axially at substantially constant speed, are fed by respective transfer members into respective seats on respective first and second receiving rollers arranged side by side and tangent to each other. The portions in the first series are fed on to the first receiving roller in an axially offset position in relation to that in which the portions of the second series are fed on to the second receiving roller, and are fed from the first to the second receiving roller so as to form, inside each seat on the second receiving roller, a pair of coaxial portions the facing ends of which define a gap. A double filter is inserted between the facing ends of the two coaxial portions; is connected to the two coaxial portions to produce a double cigarette; and is subsequently cut to divide the double cigarette into two cigarettes.
    Type: Grant
    Filed: November 28, 1990
    Date of Patent: December 31, 1991
    Assignee: G.D. Societa' Per Azioni
    Inventors: Salvatore Rizzoli, Bruno Belvederi
  • Patent number: 5033482
    Abstract: A method of manufacturing filter-tipped cigarettes whereby series of first and second double cigarette portions, produced by transversely cutting two continuous cigarette rods traveling axially at substantially constant speed, are fed by respective transfer members into respective seats on respective first and second receiving rollers.The first double portions are then fed into respective seats on a third transfer roller and subsequently into alternate seats on a fourth transfer roller, the vacant seats of which receive the second double portions supplied by the second transfer roller. The first and second double portions on the fourth transfer roller are cut transversely to produce, on the fourth roller, successive pairs of aligned single portions, which are parted axially, connected via the interposition of a double filter, and then cut into cigarettes by cutting the double filter.
    Type: Grant
    Filed: January 28, 1991
    Date of Patent: July 23, 1991
    Assignee: G. D Societa per Azioni
    Inventors: Bruno Belvederi, Salvatore Rizzoli
  • Patent number: 4883075
    Abstract: A dual-rod cigarette manufacturing machine wherein two streams of tobacco, retained by suction on parallel conveyor belts, are subjected to the action of respective tobacco shaving devices prior to being wrapped in strips of cigarette paper; each of the aforementioned shaving devices comprising two tangent, coplanar, counter-rotating discshaving respective cutting edges, and the respective shafts of which are parallel, inclined at a given angle from vertical, and the shafts lie in a plane substantially perpendicular to the two tobacco streams.
    Type: Grant
    Filed: July 20, 1988
    Date of Patent: November 28, 1989
    Assignee: G. D. Societa' per Azioni
    Inventors: Riccardo Mattei, Salvatore Rizzoli