EP0906873A1 - Packaging and dispensing unit for bi-products - Google Patents

Abstract

The container has two chambers for the separate products (A, B) and a dispenser (9) with a hollow rod (11) and actuator (13). The actuator is mounted on the hollow rod via an intermediate member (32) which creates a flow of product (A) and determines the output rate of both products. The flow of the first product (A) applies a pressure to a piston (31) in the chamber containing the second product (B), causing a combined flow to pass through a channel (25) to an outlet (35).

Description

The present invention relates to a device for the simultaneous distribution of two products packaged separately. The invention is particularly suitable for the application of certain products used in cosmetics, pharmacy or dermato-pharmacology. The invention relates in particular to products which, for reasons of stability cannot be brought into contact with each other until of use. By way of example, there may be mentioned active agents such as vitamin C, A, or E, bicarbonate, fruit acids such as citric acid, to be distributed with a moisturizing product in the form of a gel, a cream or a cream gel.

Patent FR-A-2 615 826 describes a device for the distribution of a mixture of pasty substance and at least one pasty additive, in particular in the form of a ribbed cord. The device comprises a container, in particular a walled tube flexible, containing a first pasty product. The container is surmounted by a neck on which a distribution head is mounted. The dispensing head has a body of which an annular part forms a reservoir for a second product, capable of exit through an outlet orifice, under the pressure of the first product. The body also defines a central passage to convey the first product towards said outlet, so as to form a ridged bead having a little of the two products. According to a variant illustrated in this document, the second product is contained in a central part of the body of the dispensing head, the the first product being conveyed by an annular passage. Debits respective products are determined to a large extent by the diameter of the neck of the flexible-walled container, and by the configuration of the body of the distribution head, etc. Thus, if one wishes to produce such a system, with different flow characteristics, this involves changing the body of the distribution head, and therefore to invest in an expensive mold. Certainly, in one of embodiments the body containing the second product, has a bottom reported. However, the configuration of the background is such that it does not change nothing the flow of product leaving the flexible-walled tube. It therefore has no impact on the respective debits of each product.

In patent FR 2 629 058, a device of the same type is described comprising further means for varying the respective bit rates of each of products. Typically, the flow rates are adjusted at the outlet of the device, making vary the angular position of a dispensing spout relative to a capsule, which has the effect of modifying consequently the section of orifices through which take out the products. Such a device has the disadvantage of being relatively complex and expensive to manufacture.

In one of the embodiments of patent EP 0 410 858, there is described a equivalent system in which the outlet opening is closed at the by means of an elastically deformable member, in the form of a lip, capable of deviate under the pressure of the product to allow the product to pass, and to return to closed position, with or without air intake, as soon as the pressure ceases.

It is therefore one of the objects of the invention to provide a device for the distribution of two products packaged separately, presenting means simple and economical to carry out, to determine the respective flow rates of each of the products.

It is in particular an object of the invention to provide a device for the distribution of two separately packaged products, the adjustment of which respective debits of each product, does not require to change the whole of the distribution head.

It is another object of the invention to be able to use a dispensing head comprising a body obtained from molding a thermoplastic material in particular, and the modification of the respective output flow rates of the products does not involve any modification to the body of the dispensing head.

It is yet another object of the invention to produce an adaptable device on a container whose output of the product is controlled by a pump manual actuation or by a valve, via an outlet rod whose diameter outside is very small (typically less than 5 mm, and generally 2 to 3 mm).

Still other objects will appear in detail in the description which follows.

a) un premier récipient contenant un premier produit A;

b) un organe de distribution pour permettre la sortie sous pression du produit A, via une tige creuse montée sur des moyens de rappel élastiques, et dont une extrémité débouche hors du premier récipient;

c) des moyens surmontant l'organe de distribution, pour permettre l'actionnement de l'organe de distribution, lesdits moyens comportant un corps d'axe X, formant d'une part un réservoir pour le second produit B, apte à sortir au travers d'un premier orifice, sous la poussée du produit A, et d'autre part, au moins un passage en communication avec la tige creuse pour acheminer le produit A sous pression, vers un second orifice;

caractérisé en ce que lesdits moyens d'actionnement sont montés sur la tige creuse via une pièce intermédiaire apte, en coopération avec le corps, à répartir le produit A sous forme d'au moins un flux de produit A dont la configuration détermine les débits respectifs de sortie des produits A et B.Thus, according to the invention, these objects are achieved by producing an assembly for the distribution of at least two products packaged separately, through at least one outlet orifice comprising:

a) a first container containing a first product A;

b) a dispensing member to allow the product A to exit under pressure, via a hollow rod mounted on elastic return means, and one end of which opens out from the first container;

c) means surmounting the dispensing member, to allow actuation of the dispensing member, said means comprising a body of axis X, forming on the one hand a reservoir for the second product B, capable of exiting at through a first orifice, under the pressure of product A, and on the other hand, at least one passage in communication with the hollow rod for conveying product A under pressure, to a second orifice;

characterized in that said actuating means are mounted on the hollow rod via an intermediate piece capable, in cooperation with the body, of distributing product A in the form of at least one product flow A whose configuration determines the respective flow rates of output of products A and B.

Advantageously, the body consists of a single piece obtained from molding, in particular of a thermoplastic material such as polypropylene, a polyethylene terephthalate, a polyethylene, etc. Advantageously still, the product A pushes product B through a movable piston. This prevents the products A and B are kept in contact with each other, which can be essential for certain pairs of products.

Thus according to the invention, the respective flow rates are determined at least in part, by a separate part of the body of the dispensing head, which part ensures in in addition to the watertight assembly of the assembly on the hollow rod (pump or valve for example). This intermediate piece, located between the container containing the first product and the tank containing the second product, allows, if necessary considerably facilitate the molding of the body, and consequence of reducing the manufacturing cost. In other words, the same body can be used to dispense couples of products with flow rates respective, simply by changing the intermediate mounting part. The intermediate piece can also be obtained by molding, which molding is, in terms of cost, out of all proportion to the additional cost that would be imposed the manufacture of a head body mounted directly on the hollow rod and incorporating all the elements necessary for the distribution of product A flows in the head in order to modify the respective flow rate of each of the products. In addition, the possibilities for adjusting the respective flow rates are much more as many as would be possible if the flow splitter were part integral with the body of the dispensing head, and this only by playing on the configuration of channels, passages or orifices formed by the intermediate piece.

Furthermore, the emptying of the device can be complete, whatever the ratio the respective debits of each product.

Advantageously, the body can be surmounted by an element closing said body and forming a bearing surface to allow pressure to be exerted actuation, the (or) outlet (s) being carried by said element. This element can be mounted by breakdown, gluing, welding, or any other means appropriate.

According to a first embodiment, product A is pressurized in the first container, said dispensing member being formed of a valve. Product A can be pressurized by means of a liquefiable gas or not, or by means of a piston pushed by a gas for example. Alternatively, the distribution unit is consisting of a manually operated pump.

The product reservoir B may consist of an annular part of the body, the product A being conveyed to the second orifice via a central intake passage.

Advantageously, the body has a fixed annular bottom defining at least an orifice for placing the body in communication with the hollow rod, the reservoir comprising a movable bottom in the form of an annular piston able to move axially under the thrust of product A, said movable bottom being separated axially from the fixed bottom. The presence of the piston is not essential, in especially when it comes to distributing products with a very pasty consistency.

The central intake passage can be raised relative to said annular bottom fixed and be carried by bridges of material angularly spaced around said orifice, and a first end of which is integral with the annular bottom, a second end being integral with the supply passage.

According to a first embodiment, the intermediate piece has an orifice in communication with the hollow rod, and distributes product A in the form of a central flow of product A, leading both directly into the passage central inlet, and under the annular piston, between the fixed bottom and the piston annular. Thus in this embodiment, the intermediate piece allows, in assuring the mounting on the hollow rod of small diameter, to authorize the realization of a wider central passage. Furthermore, with this embodiment, one can use product A coming directly from the container in which it is packaged.

According to a second embodiment, the intermediate piece has an orifice inlet, in communication with the hollow rod, a part located opposite the inlet orifice being able to form a deflector for the product A so as to route it both through the central intake passage and under the annular piston via lateral passages located between material bridges supporting the deflector. This regulates both the flow of product A passing through the channel central and product flow A pushing the annular piston. Also as for the previous embodiment, this makes it possible to widen the central passage. Of orifices or slots may be provided at the base of the central chimney, which orifices may, at the start of use of the device, be located opposite the piston, but which will be released after a slight rise in the piston, thus allowing to increase the flow in the central intake passage.

Another type of regulation is obtained with an embodiment in which the intermediate piece has an inlet opening in communication with the rod hollow, a portion of said intermediate piece being able to close off altogether or part of the orifice delimited by the fixed bottom, the product A being brought both into the central inlet passage and under the annular piston via lateral passages arranged between the fixed bottom and the intermediate piece, and opening into the body through orifices made in the fixed bottom, near the periphery of the body of the actuating means. In addition to widening the central passage, the intermediate piece according to this embodiment, allows the product to pass At the periphery, under the annular piston. This embodiment is advantageous in that it allows the evacuation of air, in particular in the case of a product A very viscous.

The portion capable of closing the central orifice can be carried by one or more bridges angularly spaced material, so as to allow the passage of the product A in the side passages.

Alternatively, the reservoir for the second product B consists of a part center of the body, the first product A being conveyed to the second orifice via an annular supply passage surrounding all or part of the central tank.

In this case, the intermediate piece may include an inlet opening in communication with the hollow rod and arranged so as to distribute the product A in the form of a central flow intended to push product B and passages lateral to generate the first lateral flows to feed the passage annular supply, said first lateral flows opening into the passage annular supply through slots or orifices in a bottom annular of said intake passage. This reduces the central flow under the product B, to increase the passage of product A through the annular zone.

Ports or slots can be made in the central part of the body and leading to the annular inlet passage so as to generate second lateral flows to feed the annular supply passage. We thus increases the flow of product A leaving through the annular passage. Otherwise, on priming, the piston evacuates the residual air located under it, through the slots or holes in the central passage.

Advantageously, the actuating means are mounted on a hoop of dressing. The covering hoop can be molded with the part intermediate.

According to yet another embodiment, the hoop and the actuation means are formed from a single piece obtained from molding, said hoop being connected to means of actuation by bridges of frangible material. Bridges of matter can be broken during the first use, which ensures the inviolability of the system.

Product A can be contained in a pocket made of flexible material. As example, we use aluminum foil, or a complex of several different materials. Advantageously, the pocket is contained inside a rigid or semi-rigid enclosure.

The first and second orifices can lead to a single outlet orifice, or on two separate outlet ports.

In particular in the case of a single outlet, it can be closed by an elastically deformable member, able to move apart under the pressure of the product so as to release said outlet orifice and allow the outlet of the product, and return to the closed position when the pressure stops. Advantageously ion uses a lip made of elastomeric material.

The B / A flow rate ratio varies depending on the products and applications. As for example, the B / A flow rate ratio varies between 5/95 and 50/50.

Advantageously, the intermediate piece is mounted on the hollow rod via a sleeve, the hollow rod (or sleeve) having on at least part of the height of its external surface (internal surface), streaks capable of allowing exhaust air. This air extraction function is particularly advantageous when the dispensing head is removable.

According to a preferred embodiment, the actuation means are mounted in force on the intermediate piece. Still other means can be used to mounting the actuating means on the intermediate piece.

By way of example, products A and B are cosmetic compositions, pharmaceutical, or dermato-pharmaceutical.

• la figure 1 représente un premier mode de réalisation d'un ensemble de conditionnement et de distribution bi-produit selon l'invention;
• les figures 2A-2D illustrent une vue partielle de quatre variantes du mode de réalisation de la figure 1;
• la figure 3 illustre un second mode de réalisation d'un ensemble de conditionnement et de distribution bi-produit selon l'invention; et
• les figures 4A et 4B illustrent une variante du mode de réalisation de la figure 3.

The invention consists, apart from the arrangements set out above, of a certain number of other arrangements which will be explained below, with reference to nonlimiting exemplary embodiments, described with reference to the appended figures, among which:

• FIG. 1 represents a first embodiment of a bi-product packaging and distribution assembly according to the invention;
• Figures 2A-2D illustrate a partial view of four variants of the embodiment of Figure 1;
• FIG. 3 illustrates a second embodiment of a bi-product packaging and distribution assembly according to the invention; and
• FIGS. 4A and 4B illustrate a variant of the embodiment of FIG. 3.

The assembly 1 illustrated in FIG. 1 comprises a pocket made of flexible material 2, to aluminum base in particular, inside which is arranged a first product A (in the form of a cream for example). Product A can be a product moisturizer in the form of an aqueous or hydro-alcoholic gel, a cream water-in-oil or oil-in-water, a cream gel, or an anhydrous phase.

A free edge of the pocket is mounted by gluing or welding on a pocket head 3, which is mounted on the free edge of a rigid or semi-rigid enclosure 4, having at its bottom an air intake orifice 5. The pocket head 3 has an annular skirt 6 closed by an annular bottom 7, carrying a chimney central 8 in communication with the pocket, and on which is mounted a manually operated pump 9. Pump 9 can be mounted by crimping, via an intermediate piece (not shown) which can be snapped inside the central chimney 8. The annular skirt 6 has on its outer surface, a annular edge 10 intended to come to bear on the free edge of the rigid enclosure or semi rigid 4, the skirt 6 being inserted by force into the opening of the enclosure 4.

A dispensing head 13 is mounted on the pump rod 11 by means of a intermediate element 32 whose function and characteristics will be described in more detail later. The dispensing head comprises a body 14 of axis X, obtained by molding in one piece, in polypropylene for example. The body 14 delimits an annular zone 15, containing a second product B, for example a active, to be distributed in combination with the product contained in bag 2. The product B can consist of an anhydrous product, a cream or a gel, containing active ingredients such as vitamin C, A or E, bicarbonate or fruit acids.

The body 14 has a fixed annular bottom 16 delimiting an axial opening 17. A central chimney 18 is carried by three legs 19 arranged regularly around the orifice 17, so as to allow the passage of the first product A between said legs 19.

A cap 20 is arranged so as to close the body 14 and define a bearing surface 21 to allow actuation of the pump 9. The cap is snap-mounted on the free edge of the body 14. The central chimney 18 is axial height such that, in the mounted position of the cap 20, the chimney central is in contact with the internal surface of the transverse wall 27 of the cap forming the bearing surface 21. An elastomeric member 22 is disposed inside the cap, and defines with the body of the cap, an axial passage 23 in communication with the annular zone 15 via a slot or an orifice 24 formed in a transverse wall 28 of the cap, said axial passage 23 leading to a radial passage 25, also in communication with the central chimney 18 via a slot or an orifice 26 formed in the wall of the central chimney 18, near its upper edge. The radial passage 25 leads to a spout at which the elastomeric member forms a lip 29. In the rest position, the lip 29 is in elastic support on an edge corresponding formed by the transverse wall 27 of the plug 20, said edge forming a seat 30 for said lip 29. Under product pressure, lip 29 moves away from seat 30 to let the product pass. When the pressure stops, the lip 29 returns in leaktight support against the rigid seat 30.

The annular zone 15 is closed by a movable bottom forming a piston 31, suitable, under the pressure of product A, push product B towards the orifice 24. The annular piston 31 is axially separated from the bottom 16, so as to allow the product A to pass into the annular space between the fixed bottom 16 and the piston, in order to push the latter. The dispensing head 13 is mounted on the rod pump 11, via an intermediate element 32, further playing the function of flow divider. The intermediate element 32 comprises a transverse wall 39 connected to an annular edge 40, of external diameter slightly less than the internal diameter of the free edge of the body 14, so as to allow mounting in force of the body 14 on the intermediate element 32. The intermediate element carries in its center an axial chimney 33 forming an inner diameter sleeve suitable for allowing it to be force-fitted to the pump rod 11. The chimney axial 33 opens onto an orifice 34, in communication with the hollow rod 11, and opening out opposite the central orifice 17 delimited by the fixed bottom 16.

A removable cover 36 covers the dispensing head. The distribution head also includes a covering band 42. In this embodiment, the hoop 42 is obtained by molding with the body 14 of the dispensing head 13. The hoop 42 is mounted by snap-fastening on the pocket head 3. On leaving the mold, the hoop is connected to the body by breakable tabs 43, in particular during the first use, guaranteeing the inviolability of the assembly before its first use.

To dispense the mixture, the user presses on the support surface 21 of the button pusher 13, which causes the pump rod 11 to sink in and out of the product A, through the hollow rod, via the orifice 34 of the intermediate element 32. The product A passes through the legs 19 under the piston 31, which under the pressure, causes product B to exit through port 24 and the passage 23. The product B is thus routed in the radial passage 25. Simultaneously, the product A passes through the central chimney 18 and opens into the radial channel 25, where it mixes with product B. The pushing of the mixture causes the opening of the lip 29, the said mixture leaving at the outlet orifice 35 delimited by lip and seat. By releasing the pressure on the push button 13, the rod pump returns to closed position by elastic return, which interrupts output products A and B.

Alternatively, it is possible to provide two passages 25 arranged side by side, and leading to two adjacent orifices, so as to cause the exit simultaneous, but separate from the two products A and B. The orifice (s) can open laterally as in the illustrated embodiment, or parallel to the axis of the device.

Thus, in this version, the intermediate part used to ensure the mounting distribution head on the pump rod, allows, in addition to sealing, to increase the flow rate of product A passing directly into the central channel 18, by making it possible to give the latter a wider section than that which it could have if the push button was mounted directly on the pump rod, in particular because of the imperatives of molding and demolding. Of the same way, we decrease the effective product flow to push the piston 31 and make take out product B. This reduces the ratio of flow rates B / A. In addition, we reduces the fragility of the central chimney.

In the variant of FIG. 2A, the intermediate element 32 bears opposite the orifice 34, a deflector 37 carried by tabs 38 angularly spaced around orifice 34. Product flows A are illustrated in the drawing by the arrows. The deflector 37 breaks the flow of product A leaving the pump rod and increases the flow of said product A directed laterally under the piston, which increases the thrust applied to the piston, and therefore the quantity of product B distributed. This regulates the flow of product B at the start. Advantageously, orifices or slots 38 formed at the base of the central chimney 18, and located, before the first use, opposite the piston 31, are released, as and as the piston goes up. These openings, once released, allow effect of product A to pass from the annular passage to the central channel 18, thus increasing the flow of product A in the central passage 18. In this mode embodiment, the internal surface of the axial skirt 33 carries vertical ridges 41 to allow the evacuation of air during mounting of the dispensing head 13 on the pump rod. The ridges 41 extend over the entire height of the rod or the axial skirt 33, with the exception of the upper end, so as to ensure a waterproof surface of the skirt on the hollow rod, about 1 mm. Of the same so that for the previous embodiment, we can realize a channel inlet 18 of more or less wide section, depending on the flow rate B / A wish.

In the variant of FIG. 2B, the fixed bottom 16 of the body 14 is separated axially of the transverse wall 39 of the intermediate element 32. Furthermore, the orifice 17 is sealed off by a closure element 44 carried by angularly spaced legs 45. In addition, passages or orifices 46 are formed in the fixed bottom 16, in the vicinity of its periphery. So product A leaves the hollow rod 11 via the orifice 34 of the intermediate element 32, passes under the fixed bottom 16, opens into the body 14 via the orifices or peripheral slots 46. Once in the body, the product, on the one hand, pushes the piston 31, and on the other hand, passes through the central channel 18 between the legs 19. This configuration advantageously allows the air to be evacuated, in particular during priming, in particular if product A is very viscous.

The variant of Figure 2C differs from the variant of Figure 2B in that the element 44 does not completely block the orifice 17 of the bottom 16, so that a part of the product passes all around the element 44 to be conveyed in the central channel 18, the rest of the product A passing under the fixed bottom 16 and opens out under the piston 31 via the peripheral passages or orifices 46. Thus, with respect to in the previous variant, the product flow A is increased in the central channel 18. The quantity of product passing through the annular space located all around the element 44 depends on the width of the latter. By playing on this width, we plays accordingly on the respective flow rates of each of products A and B.

In the variant of FIG. 2D, the product flows A are substantially identical to the flows of product A in the variant of the previous figure However, the fixed bottom 16 of the body 14 has a profile having a recess axial, similar to that formed by the intermediate element 32, thereby reducing the axial space present between the intermediate element 32 and the fixed bottom 16, and increasing the length of the path of product A under the fixed bottom 16. Product A leaves the hollow rod 11 via the orifice 34 of the intermediate element 32, passes from a part, in the central chimney 18, all around the element 44, and secondly, under the fixed bottom 16, where it opens into the body 14 via the orifices or slots peripheral 46. Once in the body, the product, on the one hand, pushes the piston 31, and on the other hand, passes into the central channel 18 via orifices or slots 47 formed in the lower part of the central chimney 18, in the vicinity of the fixed bottom. Thus, part of the product A passes substantially directly into the supply channel 18, while another part passes first under the piston 31 before going into the intake channel 18. As we can see, playing on the size, the number, the length of the passages, and their configuration, we modify the respective flows of products A and B. In reality, the number of variants is unlimited and provides very fine adjustments to the B / A ratio.

In the embodiment of FIG. 3, the body 114 of the dispensing head 113 has a central passage 118 in which product B. central passage 118 at its bottom closed by a movable bottom 131 acting as piston. The body 114 defines an annular zone 115 intended for the passage of the product A. The body is closed in its upper part by a cap 200 of which an inclined surface 210 defines a bearing surface for actuating a valve 105 surmounting a container 104 of aerosol can type, containing the product A. The valve is surmounted by a valve stem 103. The cap 200 comprises two channels 250, 251, opening onto two adjacent outlet orifices 350, 351. The first channel 251 is in communication with the central channel 118 via a orifice 126. The second channel 250 is in communication with the annular zone via one orifice 124. The two outlet orifices 350, 351 are located so close together so as to facilitate the simultaneous removal of two products distributed. The annular zone has a fixed annular bottom 116 pierced with an annular slot 146, or a plurality of slots or orifices arranged regularly on the periphery of the bottom 116. A hoop 142 is integral with the body and has a free edge 101 suitable, when the valve 105 is actuated. slide inside a skirt 102 snap mounted on the edge of the container 104. The body 114 of the dispensing head 113 is mounted on the valve stem 103 via an intermediate element 132 which also acts as a flow distributor for the product A, so as to determine the flow rate ratio B / A.

In this embodiment, the intermediate element 132 comprises a plate transverse 139 carrying an axial skirt 133 forming a sleeve of diameter suitable for allowing it to be force-fitted to valve stem 103. The skirt axial 133 opens onto an outlet port 134 arranged opposite the piston mobile 131. The body 114 of the dispensing head 113 is forcibly mounted on the intermediate element 132, via a side skirt 140, cooperating sealingly with the internal surface of the free edge of the body 114, said plate 139 being in contact with the fixed annular bottom 116. The surface upper of the transverse plate 139 has channels 150 extending radially from the orifice 134 to the periphery of the element 132 so to be in communication with the annular passage 115 via the slots or orifices 146. Channels are evenly spaced over the entire surface of the element 132.

To use the set for the simultaneous distribution of products A and B, the user presses on the surface 210, causing the rod to sink valve 103. The pressurized product exits via the hollow rod 103 and opens into the body 114 of the dispensing head 113 through the orifice 134 formed in the tray 139 of the intermediate element 132. A first part of the product A pushes the central piston 131 and causes the product B to exit through outlet 351. The other part of product A passes through the radial channels 150, under the annular bottom 116, and opens into the annular passage 115, via the slots or orifices 146. The product A leaves simultaneously with the product B through the outlet port 350. When the actuation pressure on the surface ceases 210, the valve stem 103 returns by elastic return, in the closed position, this which interrupts the distribution of products A and B.

In the same way as for the other embodiment, the mounting of the head distribution 113 on the valve stem 103, via an intermediate element 132 allows to freely choose the respective sections of the central channel 118 and the annular passage 115, independently of the section of the valve stem 103. In in addition, the ratio of the respective flow rates is adjusted by playing in particular on the dimensions and number of radial passages 150 and orifices 146.

According to the variant of FIGS. 4A and 4B, the intermediate element 132 is extended radially by a skirt, obtained by molding with the element 132, and forming a covering hoop 142. The element 132 consists of two parts 153, 154, force-fitted one over the other. The first part 153 includes a tray transverse annular 139 on the outer surface of which are formed the radial channels 150. The outer edge of the annular plate 139 is connected to the hoop 142 via a vertical edge 140 whose external diameter is slightly less than the internal diameter of the lower edge of the body 114, so as to allow force fitting of the body 114 on the intermediate element 132. The internal edge of the annular plate 139 is connected to a raised central portion 151, via an edge 152 whose external diameter is slightly smaller than the internal diameter of the central passage 118 so as to be forced into said central passage. The raised central portion is pierced in its center with an orifice 134. The part 153 is mounted in force on a second part 154 having in its center a bore to be force fitted on the valve stem 103. A space 155 is provided between part 152 and part 153 so as to form for the product a expansion chamber at the outlet of valve 105.

By actuating the valve, product A leaves the valve stem 103, and opens into the expansion chamber 155. Part of the product A leaves under the central piston 131 via orifice 134, so as to push a quantity of product B towards the orifice outlet 351. Part of the product A directed in the central passage 118, passes in the annular zone 115 through orifices or slots 157 arranged in the lower part of the central chimney 118. This creates two levels of flow towards the annular zone. The openings 157 can, before first use, be located opposite the piston, and disengage after the piston has risen certain axial height. At the same time, the other part of product A passes into the radial channels 150, between the intermediate piece 132 and the fixed bottom 116, and opens into the annular zone 115 via the slots or orifices 146. The product A exits through the outlet port 350. In the same way as for the other modes of realization, the possibilities of adjustment are endless by playing on the size, the number, and configuration of passages, orifices or other components the intermediate element 132.

In all of these embodiments, the respective flow rates of products A and B are also determined to some extent by channel configuration output of products A and B. These output channels can include example of restrictions or other elements capable of modifying the flow of products outgoing.

In the foregoing detailed description, reference has been made to modes of preferred embodiments of the invention. Obviously there may be variations made without departing from the spirit of the invention as claimed below.

Claims (31)

Assembly (1) for the packaging and distribution of at least two products packaged separately, through at least one outlet orifice (35, 350, 351) comprising: a) a first container (2, 104) containing a first product A; b) a dispensing member (9, 105) to allow the product A to exit under pressure, via a hollow rod (11, 103) mounted on elastic return means, and one end of which opens out of the first container; c) means (13, 113) surmounting the dispensing member, for controlling the actuation of the dispensing member (9, 105), said means comprising a body (14, 114) of axis X, forming d on the one hand a reservoir (15, 118) for the second product B, capable of leaving through a first orifice (24, 126), under the pressure of the product A, and on the other hand, at least one passage ( 18, 115) in communication with the hollow rod (11, 103) for conveying the product A under pressure, to a second orifice (26, 124); characterized in that said actuating means (13, 113) are mounted on the hollow rod (11, 103) via an intermediate piece (32, 132) capable, in cooperation with the body, of distributing the product A in the form of '' at least one product A flow whose configuration determines the respective output flows of products A and B. Assembly according to Claim 1, characterized in that the body (14, 114) is consisting of a single piece obtained from molding of a thermoplastic material. Assembly according to claim 1 or 2 characterized in that the body (14, 114) is surmounted by an element (20, 200) closing said body (14, 114) and forming a bearing surface (21, 210) to allow pressure to be exerted actuation, the outlet orifice (s) (35, 350, 351) being carried by said element (20, 200). Assembly according to any one of Claims 1 to 3, characterized in that that product A is pressurized in the first container (104), said distribution being formed by a valve (105). Assembly according to any one of Claims 1 to 3, characterized in that that the dispensing member consists of a manually operated pump (9). Assembly according to any one of Claims 1 to 5, characterized in that that the reservoir consists of an annular part (15) of the body (14), the product A being routed to the second port (26) via a central intake passage (18). Assembly according to claim 6 characterized in that the body (14) comprises a fixed annular bottom (16) delimiting at least one orifice (17, 46) for the placing the body (14) in communication with the hollow rod (11), the reservoir (15) comprising a movable bottom in the form of an annular piston (31) capable of being move axially under the thrust of product A, said movable bottom (31) being axially separated from the fixed base (16). Assembly according to Claim 7, characterized in that the passage central inlet (18) is raised relative to said fixed annular bottom (16) and is carried by bridges of material (19) angularly spaced around said orifice (17), and a first end of which is integral with the annular bottom (16), a second end being integral with the supply passage (18). Assembly according to any one of Claims 1 to 8, characterized in that that the actuating means (13, 113) form a removable structure of so as to make a rechargeable device. Assembly according to any one of Claims 7 to 9, characterized in that that the intermediate piece (32) has an inlet orifice (34) in communication with the hollow rod (11), and distributes the product A in the form of a central flow of product A, both opening directly into the central intake passage (18), and under the annular piston (15), between the fixed bottom (16) and the annular piston (31). Assembly according to any one of Claims 7 to 9, characterized in that that the intermediate piece (32) has an inlet orifice (34), in communication with the hollow rod (11), a part located opposite the orifice inlet being able to form a deflector (37) for the product A so as to route it both through the central intake passage (18) and under the piston annular (31) via lateral passages located between material bridges (38) supporting the deflector (37). An assembly according to claim 11 characterized in that slots or orifices (38) pass through the central intake passage (18) to bring communicating the central intake passage (18) with the annular part (15). An assembly according to claim 12 characterized in that the slots or orifices (38) are closed by the piston (31) before the first use of all. Assembly according to any one of Claims 7 to 10, characterized in that the intermediate piece has an inlet opening (34) in communication with the hollow rod (11), a portion (44) of said intermediate piece (32) being able to close all or part of the orifice (17) defined by the fixed bottom (16), the product A being brought both into the central intake passage (18) and under the annular piston (15) via lateral passages arranged between the fixed bottom (16) and the intermediate piece (32), and opening into the body (14) through slots or orifices (46) made in the fixed bottom (16), in the vicinity of the periphery of the body (14) of the actuating means. An assembly according to claim 14 characterized in that said portion (44) able to close, in whole or in part, the central orifice (17) is carried by one or several angularly spaced bridges of material (45) so as to allow the passage of product A in the lateral passages. Assembly according to any one of Claims 1 to 5, characterized in that that the reservoir for the second product B consists of a central part (118) of the body, the first product A being conveyed to the second orifice via a annular supply passage (115) surrounding all or part of the central tank (118). Assembly according to Claim 16, characterized in that the part intermediate comprises an inlet orifice (134) in communication with the rod hollow (103) and arranged so as to distribute the product A in the form of a flow central intended to push product B and lateral passages (150) for generate first lateral flows for the supply of the intake passage annular (115), said first lateral flows opening into the passage annular feed (115) through slots or orifices (146) formed in a annular bottom (116) of said intake passage (115). Assembly according to the preceding claim, characterized in that slots or orifices (157) are formed in the central part (118) of the body and leading to the annular feed passage (115) so as to generate second lateral flows for supplying the annular supply passage (115). An assembly according to any one of the preceding claims characterized in that the actuating means (14, 114) are mounted on a cover band (42, 142). Assembly according to the preceding claim, characterized in that the hoop covering (42, 142) is molded with the intermediate piece (32, 132). An assembly according to claim 19 characterized in that the hoop (42, 142) and the actuating means (13, 113) are formed in one piece obtained from molding, said hoop (42, 142) being connected to the actuation means by bridges of frangible matter (43). Assembly according to claim 5 as well as all those which depend on it, characterized in that product A is contained in a bag of material flexible (2). Assembly according to Claim 22, characterized in that the pocket is contained inside a rigid or semi-rigid enclosure (4). An assembly according to any one of the preceding claims characterized in that said first and second orifices (24, 26) open onto a single outlet (35). Assembly according to claim 24, characterized in that the outlet orifice single is closed by an elastically deformable member (22), able to move away under the pressure of the product so as to disengage said outlet orifice (35) and allow the exit of products A and B, and to return to the closed position when the pressure stops. An assembly according to any one of the preceding claims characterized in that the B / A flow rate ratio varies between 5/95 and 50/50. Assembly according to any one of the preceding claims, characterized in that the intermediate piece (32, 132) is mounted on the rod hollow via a sleeve (33, 133), the hollow rod (11, 103) (or the sleeve (33, 133)) with at least part of the height of its exterior surface (internal surface), ridges (41) capable of allowing the evacuation of air. An assembly according to any one of the preceding claims characterized in that the actuating means (13, 113) are mounted in force on the intermediate piece (32, 132). An assembly according to any one of the preceding claims characterized in that the products A and B are cosmetic compositions, pharmaceutical, or dermato-pharmaceutical, liquid consistency to pasty. An assembly according to any one of the preceding claims characterized in that the products A and B are in the form of a gel, a cream, a cream gel, or a composition in the anhydrous phase. Assembly according to Claim 30, characterized in that the product B contains an active ingredient, including vitamin A, C, E, bicarbonate, or an acid of fruits.

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