Abstract: Apparatus for manufacturing flexible tubes comprising a skirt and a head provided with a neck and a shoulder linking the neck to the skirt, the apparatus having a first zone devoted to manufacturing the skirts, a second zone devoted to manufacturing the flexible tubes, a third zone devoted to finishing the flexible tubes thus produced, a first transfer device transferring the skirts in continuous motion from the first zone to the second zone, and a second transfer device transferring, in continuous motion synchronized with the former, the tubes from the second zone to the third zone.

Abstract: Apparatus for manufacturing flexible tubes comprising a skirt and a head provided with a neck and a shoulder linking the neck to the skirt, the apparatus having a first zone devoted to manufacturing the skirts, a second zone devoted to manufacturing the flexible tubes, a third zone devoted to finishing the flexible tubes thus produced, a first transfer device transferring the skirts in continuous motion from the first zone to the second zone, and a second transfer device transferring, in continuous motion synchronized with the former, the tubes from the second zone to the third zone.

Abstract: A flexible tube and a container manufactured with a detachable cover that is reusable as a cap. The detachable cover includes a plastic top member and a skirt. The plastic top member has a neck and a cover. The neck is connected to the cover by a tearable ring-shaped part. The cover has a circular plate with an interlocking mechanism, for example, at least three lugs projecting radially from a periphery of the circular plate. The skirt has a common axis of symmetry with the cover and has an inner surface that follows the periphery of the circular plate. The skirt also has a receiving mechanism, for example, at least three cavities that are positioned to receive the at least three lugs such that the skirt becomes immobilized with respect to the plastic top member. The skirt encircles the outer surface of the neck. The skirt and the cover are configured to cap the flexible tube or container after tearing the tearable ring-shaped part.

Abstract: The invention relates to a process for manufacture of a top 1 intended to be attached on a container or a flexible tube 50 and comprising a neck 3 the opening 7 of which is connected by a tearable ring-shaped part 10 to a cover 20 serving as an impervious stopper prior to breaking of the ring-shaped part and then being able to serve for recapping. The cover 20 is extended by a plate 30 the periphery 31 of which has a common axis of symmetry with the tearable ring-shaped part 10 and is provided with at least three lugs 32. The skirt 40 is open at one end; its inner surface 46 is partially cylindrical, its section following the exact shape of the periphery 31, except for the lugs, of the plate 30, and is provided with at least three cavities 41 intended to accommodate said lugs. The skirt is drawn around the plate 30 to the point of immobilization, brought about by the insertion of the lugs 32 on the plate 30 into the cavities 41 of the skirt 40.

Abstract: The invention concerns a double-walled tube (1) for storing and dispensing hazardous products, comprising an inner tube (10) with a skirt (13), a shoulder (12) and an inner neck (11) delimiting an inner orifice (14), a metal tube with a skirt (25), a shoulder (24) and an outer neck (21), the two tubes being mutually connected at their necks (11 and 21) by a joining piece (30) comprising a bottom (34) and at least an outer skirt (35) enclosing the two necks (11 and 21). The invention is characterised in that the joining piece (30) is provided with an inner skirt (31) with its outer wall having a globally truncated profile, such that, when the joining piece (30) is forcefully pushed down, said inner skirt (31) causes the median parts of the necks (11 and 21) to expand at their circumference, thus widening the ends of said necks.

Abstract: A container and stopper assembly with the container having a head comprising a neck connected by a shoulder to a body of the container. The stopper and the head have respective complementary locking portions for locking by rotation. The locking portions are an elastically flexible axial blade carried by the stopper and axial portions carried by the shoulder. The axial portions include a first portion for catching and retaining the blade and a second portion for abutment of the blade ensuring that it is retained by the first portion and between the two portions.

Abstract: The invention relates to a tube head equipped with an internal lining having a barrier effect, the internal lining consists of a multi-layered polymeric element fixed by an external surface layer of the element to a plastics annular covering of the head, the element also has one or more polymeric layers having a barrier effect and a total thickness of between 0.008 and 0.05 mm and an internal surface layer of polyolefin or of polyester. The invention also relates to such thermoformed monobloc becoming the internal lining element. The invention is suitable for the production of numerous tubes.

Abstract: A process for producing markings or lines engraved on a sheet or a tubular piece (6) made of plastic material or multi-layered metal-plastic material less than 1 mm in thickness, in which the sheet or piece (6) is gripped between a tool (1) bearing one or more marking contour(s) (2, 3) and a resilient support (9), in order to produce the engraved markings or lines. The sheet or piece (6) is at less than 50.degree. C. during the gripping stage, and in the resilient support (9) has a Shore hardness D of between 70 and 120, the markings or lines obtained being produced by plastic deformation with elastic return.

Abstract: A metal dispensing container for contents under pressure comprising a neck portion with a diameter of over 22 mm and a cup-shaped valve portion. A clearance gap of at least 0.5 mm is left between the inside of the neck portion and the cup portion into which the neck portion is fitted following insertion of a seal. The outside of the cup-shaped portion is crimped over the neck portion so that deformation of the seal prevents leakage.