Patent ID: 9637260
Date: 2017-05-02
CPC Classifications: B65B

Claim:
1. A packaging machine for producing sealed packages of pourable food products from a web of packaging material, comprising: an aseptic chamber through which the web of packaging material is fed in a feeding direction, the aseptic chamber within which a sterilizing agent is applied onto the web of packaging material and within which the web is formed into a tube; a station arranged downstream from the aseptic chamber in the feeding direction and in which the tube is fed; a member positioned between the chamber and the station, the member possessing an inner surface configured to contact an outer surface of the tube as the tube is fed in the feeding direction from the aseptic chamber, through the member, and to the station to prevent the sterilizing agent in the aseptic chamber from flowing toward the station; a fluid circuit including an inlet end which opens into the station at a position downstream of the member in the feeding direction, the fluid circuit being fluidically connected with the station to convey away residues of the sterilizing agent located downstream of the member relative to the feeding direction by passing through the inlet end, the fluid circuit being fluidically interposed between the station and an area of the packaging machine, and the fluid circuit receiving air current with the residues by the station and feeding a current of cleaned air to the area; a separating element interposed along the fluid circuit and configured to separate the residues from the air current; and a plurality of closable opening devices spaced apart along the tube and projecting from the outer surface of the tube, each of the opening devices possessing an outer surface.