Abstract: The invention disclosure relates to a process for manufacturing a collapsible tube with a wall containing more than 60% by volume of plastic material from a substantially cylindrical, or tubular, blank. The inside and outside layers of the tubular blank are of polymeric plastic material, and the tube has a skirt and a necked head. In the process a shaping operation is performed where an end portion of the tubular blank is necked by bringing closer together inner and outer tools, thus producing crumpled folding of the end of the tube. Prior to the shaping operation the blank is heated in order to bring the portion of the end portion to be shaped to a temperature at the time of the shaping operation which is at least equal to the melting point of the polymeric plastic material forming of the layers the inside and outside surfaces of the wall of the blank. The polymeric plastic material is thus in a viscous molten state at the time of the shaping operation.

Abstract: The invention relates to a tube (1) of which the head (2) comprises an impermeable cap (5) which may be torn by twisting, characterized in that this cap has a lateral surface (5) of polygonal contour (6) inclined at less than 10.degree. to the axis (16) of the tube (1) and a tear zone (10) contained between the lateral surface (50) and an internal surface (11) of the cap (5) comprising at least one thin portion having a minimum thickness of 0.05 to 0.18 mm and at least one portion (9, 9') which is at least 1.5 times thicker.The invention also relates to the tube (1) accompanied by a cover maintaining the integrity of the periphery of the cap and comprising a key fitting over the cap so as to tear it by twisting, and to its use in particular for storing and dispensing liquids in metered droplets. The tube is typically used for storing and dispensing medical or cosmetic liquids.

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: The invention relates to a tube (1) having a neck (2) with a distribution orifice (3). The neck (2) being followed by a shoulder (4) and a flexible skirt (5) and, above the skirt (5). The neck (2) has an external, annular, tight fixing element (10, 30) for an external neck (27) by engagement and in that neck (2) which comprises two chambers (6, 7). The chambers are tight with respect to one another up to the distribution orifice (3). The first (6) communicating with the interior (8) of the skirt (5) of the tube (1) and the second (7) carrying through side window or windows (9). The invention also relates to the distributor obtained by engaging an external tube on the tube. It is used for the storage and distribution, without prior contact, of pairs of products in the pharmaceutical, cosmetic, food or cleaning industries.

Abstract: The cap (1) portion of the assembly comprises at least one guarantee strip (2, 3) connected to its body (5) by breakage bridges (4), the neck of the receptacle carrying ratchet teeth and the guarantee strip (2, 3) carrying internal teeth (6) adapted to cooperate with the ratchet teeth. The ratchet teeth (9) are elastically inclinable in the direction of screwing to allow the cap (1) to be screwed on while preventing its being unscrewed without breaking the bridges (4). At least one guarantee strip (2) has free ends (21) and is ejected transversely the first time the cap (1) is screwed on. The internal teeth (6) are so disposed that they cooperate with the ratchet teeth by only a single internal tooth (6) upon screwing and unscrewing. The cap (1) can be applied to tamper-proof receptacles in the cosmetic, pharmaceutical, hygiene, food and cleaning product industries.

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.

Abstract: The invention relates to a strip or portion of a strip for deep drawing or drawing and ironing comprising a metallic layer carrying on one surface a surface coating of plastics material and on its other surface a coat of varnish characterized in that: the metallic layer is of aluminum alloy with each surface having a coating of anodic or chemical conversion oxide 20 to 80 nm thick; and the coat of varnish contains a solid lubricant consisting of particles which are harder than the varnish and less hard than the shaping tool or tools, which particles are of an average diameter greater than the thickness of the said coat after firing. The invention also has an object the use of this strip to produce various hollow bodies or containers, particularly with a height:diameter ratio in excess of 2.5 and for producing aerosol or pump distributors.

Abstract: The assembly of a closure (3) and a receptacle (1) having a neck (2) of plastic material surmounted by a tamperproof cover 98). The closure (3) comprises an opening capsule (3) provided with a base (4), and the base (4) and the neck (2) are configured for snap-on engagement after the commencement of insertion in full cross-section of a fitting device (25) onto the cover (8), and, lower down, a screwing device, these devices (15 and 25) allowing the cover (8) to be ruptured and to be fitted into the neck (2).

Abstract: A dispenser having a head fixed on a body or a skirt, and a cap, with the cap comprising an outer skirt, a deformable internal crown and an intermediate ring, the head and the intermediate ring of the cap having complementary screw threads for raising and lowering the cap, the head including a stopper supported by sloping legs fixed inside the head and occluding an aperture of the cap when the cap is in a low position, the internal crown and the head cooperating sealingly once the cap is engaged on the head, the head including a shoulder which has at least one stop lug cooperating with a rib on the intermediate ring near its lower end to hinder an uncontrolled unscrewing of the cap when the cap is screwed downwards to close the dispenser.

Abstract: The invention relates to a method of making a dispensing head comprising a rigid annular dome made of plastics and, above the dome, a dispensing valve or a pump, the valve or pump having an annular fixing shoulder, the circumference of which is made at least externally of plastics, the lower end of the dome carrying an annular flange for fixing over a can body. In the method disclosed the valve or pump is disposed between tools which tightly grip the fixing shoulder and provide play which limits its heating during a molding operation. Annular tools are provided, forming a circular gap with the tools that grip the fixing shoulder, the gap closing over the shoulder and forming the geometry of the dome and its annular fixing flange. Molten plastics are injected into the annular gap through one or more injection orifices, the molded dispensing head cooled and demolded. The invention also relates to the corresponding preassembled heads and dispensers using them.

Abstract: A hollow metallic or metalloplastic element drawn or drawn-ironed from a decorated blank, and comprising an outer skirt decorated with an image formed from lines of dots of ink. The skirt has over its entire height which comprises zones of level h:2R at least equal to 0.5, a spacing between adjacent lines of dots of a same ink and an angle of inclination of the lines which are constant to better than a relative 1%.

Abstract: A pasty product dispenser (1) comprising a body defining a chamber for storing at least one main pasty product and pumping system defined by a wall surmounting the storage chamber and by an intake valve member, the wall carrying on the side of the storage chamber a separator tube enclosing the valve member and comprising passages for at least one secondary pasty product contained between the separator tube and the body, the passages being outside the separator tube, the wall having a rotating cover with traversing apertures, rotation of the cover progressively masks or exposes the passages, the apertures being occluded by the valve member when it is in its low position.

Abstract: A bag-type dispenser comprising a casing including a tubular body and a separate body portion, a tubular skirt, a dispensing portion and a one-piece molded annular dome of plastic material including an upper annular portion fixed to the dispensing portion, a lower tubular portion directly and sealingly fixed to the tubular skirt at an upper portion of the skirt over a height of 5 to 20 mm, and a lower annular portion outside the lower tubular portion, directly and sealingly fixed to the tubular body at an upper end. The dispenser can be filled with product by way of a lower end of the tubular skirt which is open, and which can subsequently be closed to form a bag.

Abstract: A container and its threaded sealing cap with a tear-off security strip, a constricted portion of the container being threaded and provided with flexible teeth having an increasing spring action ratcheting with notches of the security strip, and having a mechanical strength making it possible to guarantee that the container is tamper-proof, while insuring ease of opening after tearing off the security strip.

Abstract: According to the invention, a metallic product of a thickness less than or equal to 1 mm is compressed between a narrow elongated relief (2, 3) and an alternating succession of reliefs (10) and hollows (11) disposed opposite this narrow relief (2, 3), the differences in level between the said alternating reliefs (10) and hollows (11) being transverse in respect of the said narrow relief (2, 3), the compression stress being such that the minimum thicknesses of the said metallic product after compression are comprised between 0.01 and 0.15 mm. This method makes it possible to obtain tearing lines which have no injurious rough portions. The invention likewise relates to the products obtained and is particularly interesting in the field of packaging.

Abstract: A tube for dispensing a paste bead comprising a principal paste and a central thread of a second or secondary paste. The tube comprises a skirt portion, a neck portion having an opening serving as a dispensing orifice and a shouder portion joining the skirt and neck portions. The tube further comprises a distributing member comprising a cover portion disposed between the interior of the neck portion and the interior of the skirt portion, and fixed to the interior of the shoulder portion. This distributing member comprises a plurality of longitudinal, generally tubular passages opening into the interior of the skirt portion and into the interior of the neck portion through the cover portion, the tubular passages being separated by at least one gap which is open to the interior of the tube and open to the neck portion through at least one central aperture in the cover portion. The dispensing orifice is located at least 1.5 mm from the central aperture and has a cross-section smaller than 0.

Abstract: The invention discloses a method of and apparatus for inserting a lid, or plug closure, in a container body by use of a thrust member bearing on the back surface of the lid in which the thrust member is applied in such a way as to obtain a creasing of the lid when the pressure of the air trapped in the said body increases, this air then escaping between the lid and the container body. The invention is applicable to the fields of cosmetics, pharmaceuticals, hygiene products and foodstuffs.