EP0823389A1 - Pressurised device with a slit element of foam material as pressurising means - Google Patents

Abstract

A pressurised dispensing container has a valve (12) at its upper end connected to a dispensing nozzle (14),and a plunger tube inside the container. The container holds a pressurising element (15) made from a cellular material with closed cells, having a radial slit and fitting round the plunger tube. The pressurising element and the liquid or cream in the container are subjected to a constant and uniform pressure; the cellular material being selected from a polyolefin foam, an elastomer, a thermoplastic, foam rubber, Buna (RTM), Neoprene (RTM) or silicone, with its cells filled with a compressible gas such as nitrogen or air. As the contents are dispensed from the container the pressurising element expands and takes up the available volume.

Description

The invention relates to a new pressurized device for the distribution of products liquids or creams, such as for example cosmetics, foodstuffs, pharmaceutical.

According to the prior art, a pressurized device consists of a container body, on which possibly comes to fit a cover; on the neck of this container is crimped a valve via a valve holder cup, a distribution means connected to the valve is provided; the container body and the cup define a reservoir cavity; the valve consists of a valve body, a valve control rod which passes through the valve body, a seal and a return system that presses the control rod valve against the seal, the assembly being held in place by crimping the valve holder cup; the valve control rod is surmounted by a push button. In the reservoir cavity are arranged a product to be dispensed and a means of propulsion.

The means of propulsion can be a compressed gas directly in contact with the product in the container body. In this case a plunger member is attached to the valve. We can also provide, when you do not want the product to be in contact with gas, separate the gas and the product by a flexible bag or by a piston. In the case of flexible pocket, we are often faced with compatibility problems with the formula and strength of the material constituting the bag, which must be flexible and waterproof that time. If we use a piston to separate the gas from the product, we are faced with sealing problems along the contact surfaces between the piston and the inner wall of the container body. In addition, in these two cases, the filling orifice of the gas must be distinct from that of the formula: the filling of the gas is often done by an orifice located at the bottom of the container, closed by a rubber stopper. This configuration requires rework during manufacture: opening of the orifice filling the gas, fitting the bag or piston, fitting the plug. It is also expensive because of the complexity of the filling process: filling of the product then of the gas.

Furthermore, we know from document EP-A-561292, dispensing devices using as a means of propulsion, a closed cell cellular material. A gas is held captive in the cells of the alveolar material. This document describes devices in which the product is placed in a flexible bottle, inside the body container. The foam material is placed in this container body in contact and at the outside of the flexible bottle. The foam material is connected to a wheel. Before to actuate the valve via a push button, the user must to store energy in the cellular material by actuation of the wheel. The gas contained in the foam material is then put under mechanical pressure and transmits this pressure to the bottle and its contents: by actuating the valve the product can then be distributed.

However, such a device has several drawbacks: this device includes a high number of pieces; these parts require very fine adjustment (no screws, tightness) and are sophisticated, therefore this device is very expensive. The energy storage by mechanical compression of the cellular material is done in small quantities: the user must turn the dial to store the corresponding energy about a dose of use before pressing the push button. The need to this double action makes the device complex and unattractive to the consumer hurry. The bottle in which the product is contained has the shape of a bellows, also, even if it is compressed as much as possible by the action of the foam material, this bottle cannot empty completely and you get a low refund rate.

When the user stores energy in the cellular material element in turning the dial, it creates a strong osmotic pressure on both sides of the wall of the bottle. Thus, the wall of this bottle, subjected to a back-and-forth movement by the action mechanical of the cellular material, is weakened by too frequent uses. We encounter with this device the same problem of compatibility of the product with the wall of the bottle than in the case where a flexible bag is used to separate a gas from product. In addition, if the user, by mistake, exerts too strong an action on the wheel, it subjects the foam material to burst cells containing the gas and irreversibly damaging the device. Finally, such a device does not not fill the bottle with product, via the valve, by pressurizing the cellular material, because one would also obtain by this mechanical compression a bursting of the cells, the device then no longer being usable.

Also, it is with astonishment that the applicant discovered new devices pressurized using as a means of propulsion an element of cellular material with closed cells remedying the drawbacks of the prior art.

The invention relates to new pressurized devices for the distribution of a product comprising a reservoir cavity, a longitudinal axis, a valve placed at the top of the reservoir cavity and a distribution means connected to the valve, a means of pressurization, characterized in that the pressurization means consists of a element in closed cell foam material, the element in foam material and the product are placed together inside the tank cavity and subjected to pressure permanent and uniform, so that the device distributes the product when actuates the valve, the element of cellular material comprising at least one slot at its periphery over its entire height measured along the longitudinal axis.

The shape of the element of cellular material is defined according to the invention before its introduction into the reservoir cavity.

Although the invention is particularly well suited to a pressurized device in which the foam element and the product are subjected to pressure permanent and uniform, it applies to any type of product distributor.

The term peripheral means a slot, one end of which is situated on the periphery of the element of cellular material. A peripheral slit opens the material element alveolar on the outside.

The devices according to the invention make it possible to distribute all kinds of products under form of solution, emulsion, gel: lotions, creams, self-foaming compositions, milks, gels.

Such a device makes it possible to avoid mixing of the gas with the product to be dispensed and to avoid gas leaks. Thus, the duration of use of the device is extended. According to nature of the foam material and the size of the element of foam material, the pressure inside the device at the viscosity of the product to be dispensed. Such a device allows to pressurize a product, without risk of product pollution by gas and without air pollution. In addition, this device has only a small number of mechanical parts in common use and its manufacture is simple, so it is little expensive. Its use is simple. The device is not very fragile and does not have any risks of cells bursting due to clumsy use. Finally, the means of compression is retained inside the device after complete restitution of the product, this device can therefore be reused several times provided that it is recharged with product. A such a device thus makes it possible to save on the cost of packaging and its possible reprocessing.

In addition, a device according to the invention makes it possible to obtain a rate of return of the product. around 95%.

A cellular material usable in the present invention consists of a multitude cells filled with gases included in a deformable matrix, such as for example a polyolefin, elastomer or any type of thermoplastic foam, a foam of rubber, Buna, Neoprene, silicone or any other material. The gas can be any gas which is compressible or liquefiable at the pressures of use, like nitrogen or it can just be air.

When the foam is compressed, the cells are also compressed, they thus store a reserve of energy to pressurize the product. When we actuates the valve of the pressurized device, the cells expand and the product is returned.

The gas present in the cells is retained there and cannot escape from it. We thus avoid leakage and mixing problems with the product.

Advantageously, the element of cellular material used as a means of pressurization in the devices according to the invention has a shape complementary to that of the reservoir cavity, and preferably, it is chosen in shape overall cylindrical.

The element of cellular material used in such a device can be manufactured so known by extrusion or by cutting from a block of cellular cellular material closed. To cut a cylinder of cellular material, you have to compress before cutting. By this process, after cutting and decompression, an element of cellular material with slightly lateral contours concaves as described in document EP-A-561292. When such an element does not having no slot at its periphery is placed in a device as described above, of the product is housed between the concavity of the element in cellular material and the walls of the container. We therefore obtain a lower refund rate than that can be obtained with a cylinder with perfectly straight contours. However, a cylinder of foam material cut from a large block is less expensive than cylinder of extruded foam material. For economic reasons, we wish therefore be able to use an element of cellular material in pressurized devices cut rather than extruded, while maintaining a satisfactory rate of restitution.

The element of foam material used in the present invention can be extruded or even cut out. Indeed, the slot allows a wider expansion of the element of foam material, this expansion compensates for the concavity of the material elements alveolar cut. We can thus obtain an almost complete return of the product with an element of cut foam material.

However, an element of cut honeycomb material has open cells on its contours, while an extruded element does not. Therefore in the present invention it is preferred to use an element of cellular material obtained by extrusion.

Preferably the element of cellular material is of dimensions (height, diameter) greater than those of the reservoir cavity so that when the cavity is closed tank, we obtain a pre-compression of the element in cellular material so still have energy available when there is little product left in the device.

Preferably, according to the invention, the slot is radial with respect to the cylinder of material alveolar.

The element of cellular material may optionally include a central orifice on all its height.

Advantageously, when the cylinder of cellular material does not have an orifice central, the slot is made over the entire height of the cylinder of cellular material and over a width substantially equal to the radius of the cylinder of cellular material.

When a central opening is provided, this can constitute a housing for an organ plunger connected to the valve.

When the device does not include a plunger member, it may be advantageous to provide a central orifice in the element of cellular material: in fact, when mounting the device, the element made of cellular material is introduced into the reservoir cavity. The element of foam material is usually greater than or equal to the height of the tank cavity. When the valve is placed at the top of the tank cavity, by example when crimping the valve at the top of the container body, whose walls define the reservoir cavity, using a valve holder cup, the valve exerts a mechanical compression on the top of the element of cellular material. Cells under compression burst, the cellular material element is deformed in its upper part. Product can then be lodged in this deformation. Gas is diffused in the reservoir cavity and will mix with the product. To avoid these drawbacks, a central orifice can be provided in the element of cellular material, into which the valve can be inserted even when the device does not have diving organ.

According to a preferred embodiment of the invention, the slot is associated with an orifice central over the entire height of the cellular material element. The slot can open the cylinder from its outer surface to its central orifice or being only superficial, that is to say, not extend to the central orifice. The material element honeycomb has at most one slot extending from its outer surface to its central opening. Preferably, it has a slot extending from its surface outside to its central opening. It may have several surface slots.

When the device does not include a plunger member, the central orifice is preferably of elongated shape and oriented in the extension of the slot.

According to a first variant of the invention, when the device comprises a member plunger, it is possible to provide for the cylinder of cellular material comprising a slot which extends from its outer surface to its central opening consists of a piece rectangular-shaped foam material that is wrapped around the organ diver. Indeed, the production of lumps of shaped foam material rectangular is simpler, therefore more economical, than a cylinder in which a circular central hole is cut and then a slot.

It is possible to provide that the device according to the invention comprises, in a known manner, a body container, the container body defining the reservoir cavity, a valve comprising a body valve separate from the container body, the valve being placed at the top of the cavity tank, a distribution means connected to the valve and a pressurization means consisting of an element in closed cell cellular material, the element in material alveolar and the product being placed in the reservoir cavity and subjected to pressure permanent and uniform, so that the device distributes the product when operates the valve

The valve can be crimped to the neck of the container in a known manner by means of a valve holder cup, the container body and the cup defining the reservoir cavity.

One can also provide that the device according to the invention is provided with a valve in elastomeric material comprising latching means able to cooperate with the neck of the container body as described in French patent application FR-A-2741933.

A second variant of the invention relates to a pressurized container comprising a cup, a valve provided with a valve body, a valve control rod possibly surmounted by a push button possibly comprising a means valve, seal and return system, cup and valve body cooperating with each other to form, on the one hand, a reservoir cavity capable of containing a product to be dispensed and a means of propulsion, on the other hand, the valve body properly said delimiting the valve cavity, a passage being arranged between the reservoir cavity and the valve cavity.

According to this variant, the valve body crosses the reservoir cavity over its entire height and constitutes a plunger member.

According to this variant, the cup and the valve body cooperate sealingly with their ends to form the body of the container. For example, the cup and the body of valve include complementary fastening elements, for example means likely to snap or complementary profiles which, once assembled, are welded together by any means known to those skilled in the art, such as, for example, rotational welding or gluing. Hanging elements can also consist of complementary threads, so that one can screw the valve body and the cup tightly onto each other.

In order to achieve this cooperation, one can choose a valve body which has, on its circumference, said hooking elements and a cup comprising a skirt outer, which has, at its end, said hooking elements complementary to those of the valve body, this cooperation defining the body of the can. You can also choose a cup that has, on its circumference, hooking elements and a valve body comprising an outer skirt, which has, at its end, hooking elements complementary to those of the cup. It is also possible to use a cup and a valve body comprising each an outer skirt, the two skirts comprising hooking elements complementary.

According to this variant, the valve body and the cup cooperate with each other to define a cavity inside the container, this cavity delimiting the valve. Preferably, the valve body and possibly the cup each comprise an inner skirt. Advantageously, the internal skirts of the valve body and of the cup fit together one inside the other over all or part of their height to delimit the valve cavity. Of preferably, the internal diameter of the internal skirt of the cup is substantially equal the outside diameter of the inner skirt of the valve body.

The upper surface of the inner skirt of the valve body advantageously comes press the seal by pressing it against the edge of the cup, which surrounds the passage valve control rod. The valve is then sealed.

According to this variant, a passage is arranged between the reservoir cavity and the valve. Of preferentially, the internal skirts of the cup and of the valve body comprise at least one notch, these notches being associated with a chamfer circular of one or other of the skirts, along the periphery of the contact surface between the skirts and possibly a groove over the entire height of the contact surface between the skirts, all of these cutouts (throat, chamfer, notches) defining said passage of the product, and possibly gas, between the reservoir cavity and the cavity valve.

Advantageously, the valve body and the cup are made of material thermoplastic. These two elements can be made of the same material or of two different chemically compatible materials so they can be welded together or two chemically incompatible materials, assembled by screwing, gluing or snapping. Among the materials which can be used in the present invention, may include, for example, the family of polyolefins, such as polypropylene, polyethylene and copolymers of ethylene and propylene, the family of polyacetals, such as polyoxyethylene; polyethylene terephthalate can also be used, polymethyl methacrylate, the polymer used in the invention may contain fillers such as silica, glass fibers, carbon fibers. We may also consider manufacturing these elements from other materials, such as example in metal or glass.

The thickness of the walls of the cup and of the valve holder, and in particular of the skirts, are adapted by a person skilled in the art to resist the pressure of the propulsion means.

The valve control rod can be of any type known to those skilled in the art, like for example an emerging rod, a female rod, whether it is displacement axial or lateral displacement, the latter type of valve also being called “tilt”.

The return means may in a known manner be a spring or any compressible material or elastically deformable that can be accommodated in the valve cavity.

Optionally, the cup may include a circular groove. The existence of this groove allows the use of a standard format push button which is positioned in said groove. In addition, this groove gives more resistance to the cup.

The containers according to this variant of the invention are particularly advantageous when produced in the form of aerosol containers for sampling of at a few doses of using a product, because they compensate for an absence of this type of packaging satisfying the economic requirements of the market. However, their use is in no way limited to the distribution of samples: the containers according to this variant of the invention can be produced in formats of all sizes, for which the skilled person can adapt the nature and thickness of the material in order to give the container the necessary resistance.

In order to better understand the object of the invention, we will describe below, by way of for example, several containers meeting the characteristics of this invention.

Figures 1A and 1B show, in longitudinal section, a pressurized device having a cylinder of closed cell foam material as a means of propulsion, this device being provided with a plunger member.

Figures 2A and 3A show a cylinder of foam material used in the present invention, in cross section, before its introduction into the cavity tank.

Figures 2B, 2C, 3B and 3C show two variants of pressurized device according to the invention in cross section. Figures 2B and 2C are cross sections along the plane ll-ll of the device shown respectively in Figures 1A and 1B.

FIGS. 4A, 4B and 4C represent a device according to a variant of the invention in longitudinal section during assembly.

The device shown in FIGS. 1A and 2B comprises a container body 1 defining a reservoir cavity 1.1, of longitudinal axis X-X. On this body can possibly fitting a cover (not shown); on the neck of this container is crimped a valve 2 via a valve holder cup 3; the valve consists of a body of valve 2.1, of a valve control rod 2.2 which passes through the valve body, of a seal 2.3 and a spring 2.4 which presses the valve control rod 2.2 against the seal 2.3, the assembly being held in place by crimping the valve holder cup 3. A dip tube 7 is attached to the valve. Before crimping the valve 2 on the container body 1, we have introduces, through the opening of the canister, a cylinder 5 of plastazote: polyolefin matrix and nitrogen.

In FIG. 2A we see an element 25 of cellular material of cylindrical shape comprising a cylindrical orifice 26 in its center and a radial slot 28 which extends from the external surface of the cylinder up to orifice 26, before its introduction into the body container 1.

In FIG. 3A we see an element 35 of cellular material of cylindrical shape, having an elongated central hole 36 which is substantially in the shape of an eye, and a slot 38 in the extension of the orifice 36. This element can be used in place of the cylinder 25 in a device according to the invention not comprising a plunger member.

In Figure 2B we see the cylinder 5 of closed cell foam material which has been introduced into the container body 1. The external diameter of the cylinder 5 is expected to be larger than the diameter of the reservoir cavity 1.1, to obtain a lateral pre-compression of the cellular material element in order to have still energy available for distribute the last parts of the product. A cylindrical central orifice 6 is provided in the cylinder 5, the dip tube 7 coming to be housed in this orifice.

For the elements of Figure 1B common with Figure 1A we used the references of Figure 1A increased by 10. For the elements of Figure 2C common with the figure 2B we used the references of figure 2B increased by 10.

In FIGS. 1B and 2C is shown a device according to the invention ready for use: this device differs from that shown in FIGS. 1A and 2B by the fact that a product 19 was introduced by force through the valve 12, which resulted in a lateral and longitudinal compression of the cylinder of cellular material 15. The compression is of the hydraulic type, that is to say in the three dimensions, over the entire volume of the element of cellular material 15. The internal diameter of the orifice 16 is then slightly increased compared to the diameter of the orifice 6 shown in the figure 1A, the edges of the slot 8 shown in FIG. 2B have moved apart to form an opening 18. The cylinder of cellular material 15 is therefore free to move the along the dip tube 17 as a function of its relative density with respect to the product. On the valve control rod 12.2 is placed a push button 14. By actuation of the push-button 14, the valve 12 is opened, the cylinder 15 expands and expels the product 19. When all the product 19 has been expelled from the device, the latter is found in the configuration shown in Figures 1A and 2B. Thanks to the slot, the cylinder foam material expands widely and the formation of retention zones is avoided product. We can then again charge this device with product 19 as it was described above. This saves on packaging and reduces considerably the problem of reprocessing pressurized devices, since a same device can be reused a very large number of times.

The variant of the device according to the invention shown in FIGS. 3A, 3B and 3C is distinguishes from the device shown in FIGS. 1A, 1B, and 2A 2B and 2C by the absence of dip tube in the cylinder of foam material. However, this includes a elongated central hole 36 having substantially the shape of an eye and a slot 38 in the extension of this orifice. In FIG. 3B we see the cylinder of cellular material 45 which is placed in the container 41, then in FIG. 3C, we see this same cylinder 55 in hydraulic compression in the container 51 into which the product 59 has been introduced.

A pressurized container according to Figures 4A to 4C, of generally cylindrical shape, consists of a cup 40.1 on which can come to fit a cover (not shown). This cup cooperates with the valve body 40.2 to form, on the one hand, an annular reservoir cavity 40.3 of longitudinal axis XX, containing a product 40.7 and in which a ring of cellular material 40.8 as shown in FIG. 2A has been introduces, and on the other hand, the valve cavity 40.9. Inside it are: an emerging valve control rod 40.4, a seal 40.5 and a spring 40.6, which together with the valve body constitute the valve itself. The emerging rod 40.4 is intended to cooperate with a push button not shown.
The cup 40.1 has, inter alia, at the center of its upper plate 41.1, an orifice 42.1, through which the emerging rod 40.4 passes, an outer skirt 43.1 and an inner skirt 44.1, coaxial, the plate 41.1 being of orientation substantially perpendicular to these skirts.

The outer skirt 43.1 has, in its lower part, a profile 45.1, suitable for accommodating a complementary profile 41.2 coming from the body 40.2 of the valve; these two profiles are welded (Figure 4C).

The inner skirt 44.1. of the cup has a substantially corresponding internal diameter to that of the seal 40.5 and a height substantially identical to that of the cavity 40.3. The 46.1 lower surface of the inner skirt of the cup is welded to the bottom of the body valve (Figure 4C). On the inner periphery of the skirt 44.1 is located a chamfer 48.1. A notch 47.1 is also provided in the inner periphery of the bottom of the skirt 44.1; this notch breaks the continuity of the weld between the internal skirt and the body valve.

The valve body 40.2 has on its circumference the profile 41.2 complementary to that already described 45.1; this profile allows the centering of the valve body and the cup during assembly and is welded to part 45.1 of the cup. The valve body has an inner skirt 45.2 whose external diameter is substantially equal to the diameter internal of the inner skirt 44.1 of the cup and these two elements are welded. On the external lateral face of this skirt 45.2, over its entire height is provided a groove 46.2 and on the upper edge of this skirt is located a notch 48.2.

The assembly of the pressurized container as shown in FIG. 4C is shown on Figures 4A and 4B: we first assembled the spring 40.6 around the rod emergent 40.4, then the joint 40.5, in the space defined by the inner skirt of the body of valve; then the ring 40.8 and the cup 40.1 are positioned and the cup is welded to the valve body 40.2 at the end of the skirts.

The pressurized container is then filled through the valve: by pressing on the rod emergent 40.4, the product, under pressure, fills the first cavity 40.9 defined by the inner skirt of the valve body, passes through the notch 48.2, descends along the groove 46.2 by the chamfer 48.1 then by the notch 47.1 and fills the cavity 40.3.

A push button and a cover, not shown, can then be mounted on the emergent stem and on the cup respectively.

When the emerging rod is pressed via the push button, the product follows the reverse path to that described for filling the device.

Upon injection of the product, the ring is still compressed. When the product arrives through orifices 47.1 located at the bottom of the cavity 40.3, the ring is pushed up. he it follows that the container thus formed has a multi-position operation. If the product passes, during filling, towards the upper part of the cavity, compressing the ring on itself, or even pushing it down, it does not change the operation, because thanks to the slot in the ring 40.8 the ring can expand completely and repel all of the product to the valve.

In a device whose element of cellular material does not have a slot, would obtain a refund rate of around 60%.

On the other hand, the devices according to the invention represented above make it possible to obtain a product refund rate greater than 90%.

Claims (21)

Pressurized device for dispensing a product (19; 59) comprising a cavity tank (1.1; 11.1; 40.3), a longitudinal axis (X-X), a valve (2; 12; 40.2) placed at the top of the reservoir cavity and a distribution means connected to the valve, a means of pressurization (5; 15; 25; 35; 45; 55), characterized in that the means of pressurization consists of an element in closed cell cellular material, the foam material element and the product are placed together inside the reservoir cavity, so that the device distributes the product when the valve, the element of cellular material comprising at least one slot (8; 28; 38; 48) at its periphery over its entire height measured along the longitudinal axis. Device according to the preceding claim, characterized in that the element in foam material (15; 55) and product (19; 59) are subjected to pressure permanent and uniform. Device according to any one of the preceding claims, characterized in that that the cellular material is chosen from a polyolefin, elastomer, thermoplastic material, rubber foam, Buna, Neoprene and silicone. Device according to any one of the preceding claims, characterized in that that the element (5; 15; 35; 45; 55; 40.8) of cellular material is of shape complementary to that of the reservoir cavity. Device according to any one of the preceding claims, characterized in that that the element (5; 15; 25; 35; 45; 55) of cellular material is of overall shape cylindrical. Device according to claim 5, characterized in that the slot (8; 28; 38; 48) is radial with respect to the cylinder (5; 25; 35; 45; 55) of cellular material. Device according to either of Claims 5 and 6, characterized in that the slot extends over a width substantially equal to the radius of the cylinder of material alveolar. Device according to any one of the preceding claims, characterized in that that the element (5; 15; 25; 35; 45; 55) of cellular material is obtained by extrusion. Device according to any one of the preceding claims, characterized in that that the element (5; 15; 25; 35; 45; 55) of cellular material is of dimensions greater than those of the cavity Device according to any one of the preceding claims, characterized in that that the element (5; 15; 25; 35; 45; 55) of cellular material has a central orifice over its entire height. Device according to the preceding claim, characterized in that the slot (8; 28; 38; 48) extends from the external surface of the element (5; 15; 25; 35; 45; 55) of material alveolar to its central orifice. Device according to either of Claims 10 and 11, characterized in that the element of cellular material comprises a cylindrical central orifice (6; 26). Device according to any one of the preceding claims, characterized in that that it includes a plunger member (7; 17; 45.2; 44.1). Device according to the preceding claim, characterized in that the cylinder foam material consists of a piece of shaped foam material rectangular wrapped around the plunger. Device according to claim 10, characterized in that the orifice (36) has a shape elongated and oriented in the extension of the slot. Device according to any one of the preceding claims, characterized in that that it comprises a container body (1; 11) defining the reservoir cavity (1.1; 11.1) and a valve (2; 12) comprising a valve body (2.1) separate from the container body. Device according to the preceding claim, characterized in that the valve (2; 12) is crimped to the neck of the container (1; 11) via a valve holder cup (3), the container body and the cup defining the reservoir cavity (1.1; 11.1). Device according to claim 16, characterized in that it is provided with a valve in elastomeric material comprising latching means able to cooperate with the neck of container body. Device according to any one of claims 1 to 15, characterized in that it comprises a cup (40.1), a valve provided with a valve body (40.2), a rod (40.4) valve control optionally surmounted by a push button, a seal (40.5) and a return system (40.6), the cup and the valve body cooperating between them to form, on the one hand, a reservoir cavity (40.3) capable of containing a product to distribute and the means of propulsion (40.8), on the other hand, the valve body itself delimiting the cavity (40.9) of the valve, a passage (47.1; 48.1; 46.2; 48.2) being fitted between the tank cavity and the valve cavity. Device according to any one of the preceding claims, characterized in that that the product is chosen from any type of solution, emulsion, gel Device according to any one of the preceding claims, characterized in that that the product is chosen from: lotions, creams, self-foaming compositions, milks, gels.

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