Abstract: A composite closure for a container has a moulded plastics band (24) closed at one end by a plastics sure disc (72) which is held captive within a recess formed around the band interior. Also on the band interior is a screw thread (44) by which the closure may attached to a container neck (12). The disc is cut from flat plastics sheet and is initially plane. However, when the closure is fitted to the container a marginal edge region 78 surrounding the container neck is deformed downwardly to generally frustoconical form.

Abstract: A compartmented container, such as an aerosol container, has a plastics pouch (12) attached to a top component such as an aerosol cone (1). The cone is typically formed of steel laminated with polypropylene, and the pouch is attached to the cone by means of a platics/plastics heat-sealed bond using the polypropylene surface layer of the cone. The pouch is attached to the cone (1) at an area away from that used to attach the cone to an aerosol container with a double seam. The cone typically has an annular countersink (4) and the pouch is attached either to the outer countersink wall (5) or the inner countersink wall (6).

Abstract: Resistance welds on overlapped sheets of metal, such as the welded side seam of 3 piece cans, are monitored by measuring the width of the extrusion (5, 6) formed by material flowing out from the edge of the overlapped sheets (1, 2) caused by the welding process. The width of the extrusion (5, 6) is interpreted in terms of the temperature of the weld, and the welding process can be adjusted accordingly. The measurement of the extrusion width can be done optically.

Abstract: A bottle body formed of plastic injection-molded in a single piece. The bottle body includes a hollow body (12) with an open rear end (18) for filling the body with a fluid product, and a narrowed front end forming a neck (20). The body includes a transverse tear-off seal (22) integrally formed with the body for sealing the corresponding end of the body (12). The body is suitable for bottles for ophthalmological products.

Abstract: A bottle including a hollow body (12) for containing a product, the body has a first end forming a neck, a transverse tear-off seal (22) for sealing the neck, and a structure (14) for tearing off the seal (22). The tearing structure is axially movable in the neck by a control member between a stand-by position and an operative position in which the seal is ruptured. The seal (22) includes a weakened portion (24) defining therein at least one retractable flap (25A), and a flap hinge portion (25B) between at least two radially outer ends of the weakened portion (24). The tearing structure includes a flap pushing member for engaging a flap region adjacent to the hinge portion (25B). The bottle is suitable for ophthalmological products.

Abstract: The invention is directed to a method of manufacturing a double seam joining a can end (2) to a can body (1) which includes a sidewall (13) terminating in an outwardly directed flange (16) having a flange angle (.alpha.) within the range of 0 to -45.degree.. During the support of the can end (2) upon the flange (16) of the can body, seeming rolls (37, 38) form a double seam while an axial load of 600N or less is applied to force the can end and the can body one against the other.

Abstract: The present invention provides a wall for a package, which wall comprises, or includes a layer comprising, a composition comprising a polymer and capable of scavenging oxygen through the metal-catalyzed oxidation of an oxidizable organic component thereof. The oxidizable organic component is preferably itself a polymer, and may be the only polymer in the composition. Preferred compositions include a blend of 96% polyethylene terephthalate and 4% poly (m-xylyleneadipamide) containing 200 ppm cobalt as catalyst, with good permeance-versus-time performance (3) when formed into a bottle.

Abstract: A process of forming a rivet from a sheet of metal, typically double reduced steel, by producing a blister surrounded by an annular configuration in a first operation or first stage. A second operation or second stage forms the blister into a boss by flattening the annular corrugation between a die and a support so as to push metal back toward the center of the blister. Finally, the boss is converted into an upstanding hollow rivet.

Abstract: A can end 50 is attached to a flange 16 of a can body 1 by means of a double seam. The radius r.sub.2 of the seaming panel 55 of the can end is related to the radius r.sub.1 of the body flange radius 17 by the formular.sub.2 =r.sub.1 +twhere t is the thickness of the body flange. The benefit arising is that a longer body hook in the seam is achieved so that the overlap of body hook and can end is reliably increased so that reduced axial pressure may be used during formation of the double seam.

Abstract: A container includes a body (12) delimiting a first chamber (20), intended to contain a first product, and a second chamber (22) intended to contain a second product. The second chamber is connected to the first chamber by a product-flow passage (24). A device (26) is provided for obturating the passage (24). The obturating device is mounted so as to be able to move axially between a first position for obturating the passage (24) and a second position for freeing the passage (24) for the purpose of mixing the products. Also, a product-dispensing device (50) is mounted on the container. The obturating device (26) is borne by the wall of one of the chambers (22). The wall includes an extensible region (46) which, during its extension, acts to free the passage (24). Further, the container includes a removable skirt (54) for holding the obturating device (26) in the obturating position.

Abstract: A process for thermally treating a product in a container having a headspace above the product, in which the container is subjected to a heated or cooled environment and is simultaneously agitated. The acceleration to which the container is subjected by the agitation is of sufficient magnitude to cause the process to operate in a regime in which the heating or cooling time required for the product to reach a predetermined temperature is very substantially reduced and moreover is substantially insensitive to changes in the acceleration.

Abstract: Apparatus for seaming an end E to an open end of a container body B in at least first and second seaming operations comprises a lifter pad to support the container body, a seaming chuck to support the end in place on the container body, and an annular seaming tool having at least first and second annular seaming profiles on its inner surface which surrounds the end. The apparatus includes drive means for providing relative rolling movement between the seaming tool and the end in which the drive means drives the annular seaming tool to gyrate around the can end. Means are also provided for causing relative movement between the end and the annular seaming tool, from a first relative position in which the first seaming profile can contact the end E to perform the first seaming operation, to at least a second relative position in which the second seaming profile can contact the end E to perform the second seaming operation.