method for sterile packaging of liquid or semi liquid product in an aseptic container or bottle and container or bottle used for this method

摘要

The present invention relates to an aseptic container or bottle (1) for conserving a non-pasty product and comprises a body with a cylindrical or prismatic lateral wall, closed off at one end by a base (3) and having an orifice (7) for discharge of the product, and a movable inner piston (4) rubbing in a leaktight manner against the inner surface of the lateral wall of the container (1) and delimiting a volume containing the product (2). In order to prevent microorganisms and bacteria present in the ambient air from penetrating inside the product and contaminating it, means are provided for exerting on the piston (4), during each use, a force sufficient to push the piston (4) back in the direction of the discharge orifice (7) and consequently to exert on the product (2) a pressure discharging the desired quantity of product, and non-return means hold the piston, after cessation of the force exerted with a view to the discharge of the product, in the position reached so as permanently to retain a residual pressure in the product. IMAGE