Patent ID: 8800771

Claim:
A container for pressurized fluids, having a tubular body formed in sheet metal and comprising: a cylindrical side wall, having a lower edge and an upper edge which presents a reduced diameter: a bottom wall in the form of a spherical dome projecting to an interior of the container and attached to the lower edge of the side wall by a lower double seam; and an upper wall comprising a first annular wall portion and a spherical dome portion, inferiorly attached to the upper edge of the side wall by an upper double seam and defining a central opening, the container being characterized in that the bottom wall is configured, in a single piece to include at least one seating region having a predetermined circumferential extension disposed according to a plane extending transversely with respect to an axis of the container and being axially spaced inwardly within the side wall of the container in relation to the lower double seam, said seating region being configured to be fitted and axially seated respectively around and on a respective circumferential extension of the upper double seam of an identical and adjacent container inferiorly disposed in a vertical stack, so as to define a single contact region between two vertically stacked containers, the seating region comprising an annular axial stop portion, to be seated onto a container inferiorly disposed in the vertical stack, and a guiding skirt portion pending from the annular axial stop portion and to be fitted, around the upper double seam of the container inferiorly disposed in the vertical stack, the guiding skirt portion, of each seating region, being inferiorly connected to the lower double seam, by a second annular wall portion spaced back in relation to the lower edge of the cylindrical side wall, wherein, the radial width of the second annular wall portion is larger than the diametric reduction of the upper edge of the side wall, in relation to an adjacent upper cylindrical portion of the side wall, so as to maintain the lower double seam of a container radially outwardly spaced from the upper cylindrical portion of the side wall of another container disposed immediately below the second annular wall portion, when the container is in a vertical stack of similar containers, and the seating region, in conjunction with the second annular wall portion, complement a radial extension of the spherical dome of the bottom wall.