FLUIDSPENDER

Description

Domaine technique

[0001] The present invention relates to a device for distributing a fluid.

[0002] Such a device allows a user to dispense a fluid. The field of the invention is more particularly that of the distribution of products such as liquids, gels or creams, for example for the pharmaceutical, cosmetic or food industries. Etat de la technique antérieure

[0003] We know of fluid distributors, such as those disclosed for example by document WO2015 / 155318 A1 or document EP 0 484 835 A1.

[0004] In this field, manufacturers are making continuous efforts to try to improve and / or simplify the compactness, use, ergonomics, manufacturing, recharging, priming, hygiene and / or recycling of such fluid dispensing devices.

[0005] The aim of the present invention is to solve at least one of these problems. Exposé de l'invention

[0006] According to a first aspect of the invention, the invention makes it possible to achieve at least one of the aforementioned goals by means of a device for distributing a fluid according to claim 1. Advantageous but optional features are specified in the dependent claims. Description détaillée des figures

[0007] Other advantages and features will become apparent upon examination of the detailed description of examples, which are by no means exhaustive, and the accompanying drawings on which: [ Fig.1 ] there FIGURE 1 is a cross-sectional profile view of a first embodiment of a device not forming part of the claimed subject matter, in which a distribution head is in a stable position, [ Fig.2 ] there FIGURE 2 is a cross-sectional profile view of the first embodiment, with the distribution head in an inclined position, [ Fig.3 ] there FIGURE 3 is a perspective view of the first embodiment, with the distribution head removed, [ Fig.4 ] there FIGURE 4 is a zoom of a profile view of the first embodiment, [ Fig.5 ] there FIGURE 5 is a schematic representation of a non-limiting example embodiment of a cap with a lid that is not part of the claimed subject matter, [ Fig.6 ] there FIGURE 6 is a schematic representation of a non-limiting example embodiment of a supply valve not forming part of the claimed subject matter, [ Fig.7 ] there FIGURE 7 is a cross-sectional profile view of a second embodiment of a device not forming part of the claimed subject matter, the distribution head of which is in the stable position, [ Fig.8 ] there FIGURE 8 is a cross-sectional profile view of the second embodiment, with the distribution head in the inclined position, [ Fig.9 ] there FIGURE 9 is an exploded perspective view of the second embodiment, with the distribution head in the stable position [ Fig.10 ] there FIGURE 10 is a cross-sectional profile view of a tank and a pouch of the second embodiment after partial emptying of the tank [ Fig.11 ] there FIGURE 11 is a cross-sectional profile view of the pouch and reservoir of the second embodiment after complete emptying of the reservoir [ Fig.12 ] there FIGURE 12 is a cross-section of the lower part of the reservoir of the figure 10 [ Fig.13 ] there FIGURE 13 is an exploded perspective view of a third embodiment of the device not forming part of the claimed subject matter, the distribution head of which is in the stable position, [ Fig.14 ] there FIGURE 14 is a cross-sectional profile view of the third embodiment, with the distribution head in the stable position, [ Fig.15 ] there FIGURE 15 is a cross-sectional profile view of the third embodiment, with the distribution head in the inclined position, [ Fig.16 ] there FIGURE 16 is a zoomed-in profile cross-section view of the third embodiment during the stretching of tank 6 for filling, [ Fig.17 ] there FIGURE 17 is a cross-sectional profile view of a portion of a fourth embodiment of a device according to the invention, [ Fig.18 ] there FIGURE 18 is a perspective view of part of the fourth embodiment of the device according to the invention, [ Fig.19 ] there FIGURE 19 is a cross-sectional profile view of a fifth embodiment of a device according to the invention, [ Fig.20 ] there FIGURE 20 is an exploded perspective view of the fifth embodiment of the device according to the invention without its reservoir [ Fig.21 ] there FIGURE 21 is a cross-sectional profile view of a distribution channel of the fifth embodiment of the device according to the invention [ Fig.22 ] there FIGURE 22 is a cross-section of the distribution channel of the fifth embodiment of the device according to the invention [ Fig.23 ] there FIGURE 23 is an exploded perspective view of a sixth embodiment of a device according to the invention, [ Fig.24 ] there FIGURE 24 is a cross-sectional profile view of the sixth embodiment of the device according to the invention, [ Fig.25 ] there FIGURE 25 is a cross-sectional profile view illustrating a step in a manufacturing process of the sixth embodiment of the device according to the invention, [ Fig.26 ] there FIGURE 26 is a cross-sectional profile view of a seventh embodiment of a device not forming part of the claimed subject matter, [ Fig.27 ] there FIGURE 27 is an exploded perspective view of the seventh embodiment, [ Fig.28 ] there FIGURE 28 is an exploded perspective view of an eighth embodiment of a device not forming part of the claimed subject matter. Fig.29 ] there FIGURE 29 is a cross-sectional profile view of the eighth embodiment, [ Fig.30 ] there FIGURE 30 is a cross-sectional profile view of a ninth embodiment of a device not forming part of the claimed subject matter. Fig.31 ] there FIGURE 31 is an exploded perspective view of a tenth embodiment of a device not forming part of the claimed subject matter. Fig.32 ] there FIGURE 32 is a cross-sectional profile view of the tenth embodiment, [ Fig.33 ] there FIGURE 33 is a cross-sectional profile view of an eleventh embodiment of a device not forming part of the claimed subject matter. Fig.34 ] there FIGURE 34 is a cross-sectional profile view of a twelfth embodiment of a device not forming part of the claimed subject matter [ Fig.35 ] there FIGURE 35 is a cross-sectional profile view of a thirteenth embodiment of a device not forming part of the claimed subject matter. Fig.36 ] there FIGURE 36 is a cross-sectional profile view of a portion of the thirteenth embodiment, [ Fig.37 ] there FIGURE 37 is a cross-sectional profile view of a portion of the thirteenth embodiment, [ Fig.38 ] there FIGURE 38 is a cross-sectional profile view of a portion of the thirteenth embodiment, [ Fig.39 ] there FIGURE 39 is a cross-sectional profile view of a portion of the thirteenth embodiment, [ Fig.40 ] there FIGURE 40 is an exploded perspective view of the thirteenth embodiment, [ Fig.41 ] there FIGURE 41 is a cross-sectional profile view of a fourteenth embodiment of a device not forming part of the claimed subject matter [ Fig.42 ] there FIGURE 42 is a cross-sectional profile view of the fourteenth embodiment, [ Fig.43 ] there FIGURE 43 is a perspective view of the flexible wall 108 of the fourteenth embodiment, [ Fig.44 ] there FIGURE 44 is a cross-sectional profile view of the fourteenth embodiment, [ Fig.45 ] there FIGURE 45 is a cross-sectional profile view of the flexible wall 108 of the fourteenth embodiment, [ Fig.46 ] there FIGURE 46 is an exploded perspective view of the fourteenth embodiment.

[0008] It is understood that the methods of implementation which will be described in the following are in no way exhaustive.

[0009] In the figures, elements common to several figures retain the same reference.

[0010] We will first describe, with reference to FIGURES 1 à 6 , a first embodiment of a device not forming part of the claimed object for distributing a fluid.

[0011] On the FIGURES 1 à 3 The device 100 for distributing the fluid includes: a pouch 2 having an internal volume arranged to contain the fluid, the internal volume being delimited at least in part by a deformable wall 4, a reservoir 6 having an inner shell arranged to contain the fluid, a supply orifice 8 connecting the internal volume of the reservoir 6 to the internal volume of the pouch 2, a distribution head 10 fixed on the deformable wall 4 of the pouch 2 such that the distribution head 10 is supported by the deformable wall 4 in different possible positions relative to the reservoir 6, including at least: * a stable position 12 in the absence of an external force 18 exerted on the head 10 and * an inclined position 14 at an angle of inclination 16 relative to the stable position 12 when an external force 18 is exerted on the head 10, so as to deform the deformable wall 4 and thus decrease the internal volume of the pouch 2 relative to the stable position 12,a distribution channel 20 located in the distribution head 10 and arranged to conduct the fluid from the internal volume of the pouch 2 to an outlet 24, said outlet 24 being positioned at one end of the distribution head 10, a distribution orifice 22 connecting the internal volume of the pouch 2 to the distribution channel 20.

[0012] In this description, all head positions are defined in a reference frame for which the feed port and / or reservoir is fixed.

[0013] In this description, "flexible" means any part that can deform under the effect of at least 1 kg, having for example a flexural modulus of less than 600 MPa and / or having a sufficiently reduced thickness.

[0014] In this description, "rigid" means any part that cannot deform under the effect of a maximum of 1 kg, having for example a flexural modulus greater than 600 MPa and / or having a sufficiently large thickness.

[0015] The distribution head 10 includes a contact surface 26, arranged to receive, from outside the device, an external force 18 orthogonal to the longitudinal direction of the distribution head 10 positioned in the stable position 12.

[0016] The distribution head 10 of the device 100 extends longitudinally over a length of at least 10 mm (preferably at least 20 mm and even at least 30 mm or even at least 40 mm) as follows: a longitudinal direction (carried by axis A on the figure 1 ) connecting the distribution port 22 to one end of the head 10 (preferably bearing the surface 26 and / or the outlet 24), and / or a direction (carried by the Z axis on the figure 1 ) connecting the distribution port 22 to the outlet 24 and / or to the surface 26 (preferably bearing the outlet 24).

[0017] In particular, a long lever arm reduces the effort required for dispensing, for example, less than 1 kg and even less than 0.5 kg if the device is a facial care applicator (by comparison, a standard pump requires a 2 kg flexing force). The dispensing head 10 and the reservoir 6 extend longitudinally when the head is in its stable position.

[0018] The distribution head is longer (along the longitudinal direction) than it is wide (perpendicular to the longitudinal direction).

[0019] The contact surface 26, accessible from outside the device 100 by a hand or even a fingernail of a user, or a face of a user, has a minimum surface area of ​​10 mm², and preferably of at least 20 mm² (preferably of at least 30 mm², preferably of at least 60 mm², more preferably of at least 100 mm²) in the case where the contact surface 26 is intended to be in contact with the face.

[0020] Axis A extends along an X direction.

[0021] In the stable position of the device, the contact surface 26 forms (over a width less than 15 mm defined in a plane perpendicular to the direction X and over an area of ​​at least 30 mm², preferably over at least 60 mm², preferably over at least 100 mm²) an angle between -45° and 45° (more precisely between -30° and 30°, more precisely between -20° and 20°) with the direction X along which the distribution channel 20 extends out of the pocket 2.

[0022] Output 24 is located at a distance of less than 10 mm from axis A.

[0023] Surface 26 is located at a distance from axis A of less than 10 mm.

[0024] Exit 24 is located on surface 26.

[0025] The dispensing head 10 is arranged to tilt in the opposite direction to the contact surface 26. The dispensing head may have at its end an application and / or massage element on the face opposite the surface 26, which may be made of metal. The device is arranged so that force on this surface does not tilt the head, or only slightly tilts it, so as to limit or prevent the product from dispensing.

[0026] The pouch 2 is formed mainly in three parts. A first part, comprising the deformable wall 4, a second part comprising a rigid wall 54 and a third part 84 (of the pouch 2) arranged to be fixed to the reservoir 6.

[0027] The rigid wall 54 of the pocket 2 is located below the deformable wall 4. The deformable wall 4, more precisely its lower part, is fixed or integral with the rigid wall 54 of the pocket 2 at the point of connection 58.

[0028] The deformable wall 4 of the pocket 2 is formed by a part 41 and a part 42.

[0029] Parts 41 and 42 face each other. Part 41 of the deformable wall 4 is arranged to bend under the effect of the compression of the force 18, part 42 of the deformable wall 4 elongates very slightly under the effect of tension but moves less than part 41 so as to promote the inclination of the head 10 of the device 100 towards part 41 when the external force 18 is exerted at the contact surface 26 of the distribution head 10. In order to promote the inclination of part 41, the curvilinear length in a cutting plane of part 41 of the distribution head 10 in the stable position 12 is greater (i.e. longer) than that of part 42 (which forms a hinge).

[0030] Thus, the deformable wall 4 includes an asymmetry about an axis A, so that the pocket 2 is arranged to favor an inclination of the distribution head 10 in a favored direction of inclination, i.e. opposite to the contact surface 26 and / or the outlet 24. Thus, parts 41 and 42 are asymmetrical so as to favor the inclination of the distribution head 10 on the side of part 41.

[0031] Thus, the deformable wall 4 of pocket 2 comprises: a certain flexibility to allow the tilting of the distribution head 10, i.e. the passage from its stable position 12 to a tilted position 14, and an elastic restoring force arranged to reposition the distribution head 10, tilted according to its tilted position 14, into its stable position 12.

[0032] The deformable wall 4 is for example a thin wall and the rigid wall 54 is for example a wall thicker than the wall 4.

[0033] Preferably, the deformable wall 4 can be associated with the wall 54 by a "co-molding", i.e. either by overmolding or bi-injection of materials having different flexibilities, preferably with PP for the rigid wall 54 of the pocket 2 and TPO for the deformable wall 4 of the pocket 2.

[0034] Parts 41 and 42 of the deformable wall 4 and the rigid wall 54 can also be injected in one go when the rigid wall 54 and the deformable wall 4 of the bag are for example made of polypropylene.

[0035] The deformable wall 4 is preferably made of PP with a polymer or plastomer additive (such as Vistamaxx™ < 6202), in order to reduce its hardness so that the hardness of the wall 4 is less than 80 Shore D. This avoids excessive thinness and fragility of the wall 4.

[0036] The rigid wall 54 is arranged to fit onto the third part 84 of the pocket 2.

[0037] At the weld or connection point 58, an edge 66 materializes the junction between the third part 84 of the pocket 2 and the rigid wall 54 of the pocket 2. This edge 66 is orthogonal to the axis A when the device 100 is in stable position 12.

[0038] The deformable wall 4 of the pocket 2 holds the dispensing head 10.

[0039] The pouch 2 is fixed to the distribution head 10. The pouch 2 is in particular embedded in the distribution channel 20 of the distribution head 10 via a ring 88.

[0040] The distribution head 10 includes the ring 88, located at the junction between the inner volume of the pocket 2 and the distribution channel 20, in which the distribution orifice 22 is housed. Specifically, at said junction between the inner volume of the pocket 2 and the distribution channel 20, the deformable wall 4 of the pocket 2 is compressed against the distribution channel 20 by the ring 88. The ring 88 is pinched and fitted into the distribution head 10. The ring 88 is arranged to be press-fitted into the distribution channel 20.

[0041] The distribution head 10, along its entire length, is traversed by the distribution channel 20.

[0042] The distribution channel 20 starts at the distribution orifice 22 and extends to the outlet 24 housed in the distribution head 10.

[0043] In addition, the distribution head 10 includes a distribution valve 28 located in the distribution channel 20, which, in an open state, allows fluid to pass from the distribution channel 20 to the outlet 24, and, in a closed state, does not allow it.

[0044] The dispensing valve 28 is typically made of thermoplastic polyolefin or TPO (polyolefin alloys: polyethylene and polypropylene) (flexible, recyclable), modified polypropylene (PP), or modified polyethylene (PE). TPO has the advantage of being flexible and more easily recyclable if the same sub-family is used (for example, PP with a TPO base).

[0045] The distribution valve 28 is arranged to remain in its closed state as long as the angle of inclination 16 is less than 2° or 5° relative to the stable position 12. The device 100 is arranged not to incline more than 2 degrees as long as a threshold force is not reached, said threshold force corresponding, for example, to an external force (perpendicular to the surface 26) of 0.5 kilogram (Kg).

[0046] For device 100, if the external force 18 is greater than or equal to the threshold effort of 0.5Kg then an overpressure in the pocket 2 and in the distribution channel 20 allows the distribution valve 28 to open, thus causing the distribution of fluid at the outlet 24.

[0047] If the external force 18 is less than the threshold force when the distribution head 10 is in its stable position 12, then the distribution head 10 does not tilt more than 2 degrees from its stable position 12. In the case where the distribution head 10 is in the tilted position 14, if the external force 18 is less than the threshold force but present to maintain the elastic restoring force of the pocket 2 (precisely of the deformable wall 4), then the distribution head 10 remains tilted in its tilted position 14.

[0048] In the case of FIGURES 1 à 3 The distribution head 10 comprises two separable parts 101, 102, of which: an upper part 101, in which the distribution valve 28 is located, and, a lower part 102 fixed to the bag 2 and comprising an anti-drip device 30. The anti-drip device 30 is located at the junction of these two parts 101, 102 and comprises a valve 301 in the distribution channel 20, which: is arranged to be open and allow the passage of fluid towards the outlet 24 when these two parts 101, 102 are assembled, and, is arranged to be closed when these two parts 101, 102 are separated so as to prevent an exit of fluid from this lower part 102 to the outside of the device.

[0049] The upper and lower parts 101, 102 are nested one inside the other.

[0050] The distribution valve 28 includes a portion 281, in particular one end 281, arranged to maintain the valve 301 of the anti-drip device 30 in its open state, that is, in a position that allows fluid to pass to the outlet 24, when the two portions 101, 102 of the head 10 are assembled. The end 281 is tapered so that it can open the valve 301 of the anti-drip device 30 towards an inner wall of the distribution channel 20. In this configuration, the anti-drip device 30 allows the fluid contained in the pocket 2 to be directed and conveyed to the outlet 24.

[0051] The distribution valve 28 includes a part 28 2 held by clamping between internal walls of the distribution channel 20.

[0052] The distribution valve 28 is housed in a distribution housing 80. Housing 80 is part of channel 20.

[0053] Part 28 2 is stationary between the open and closed states of the distribution valve 28.

[0054] A conduit 28 3 allows the passage of fluid between the part 28 2 and the internal walls of the housing 80 towards the outlet 24 when the valve 28 (and more precisely its movable part 28 4) is open.

[0055] The distribution valve 28 includes a movable part 28 4 which, in the closed state of this distribution valve 28, is pressed against a distribution seat 105 so as to block this distribution seat 105, and in the open state of this distribution valve 28, moves away from the distribution seat 105 so as to open this distribution seat 105.

[0056] This part 28 4 is a membrane.

[0057] The distribution valve 28 includes the part 28 4 which is inserted into the upper part 10 1 of the distribution head 10. The part 28 4 is the part of the distribution valve 28 closest to the outlet 24. This part 28 4 is the movable diaphragm 28 4 of the distribution valve 28.

[0058] Part 28 4 is movable between the open and closed states of the distribution valve 28.

[0059] The distribution seat 105 is a lateral part of the internal walls of the housing 80, that is to say that this seat 105 is limited to one face, preferably flat (or curved), of the internal walls of the housing 80, and does not go all around a section of the housing 80 which would be made in a plane perpendicular to the direction of elongation of the part of the housing 80 containing the valve 28.

[0060] In one embodiment of a manufacturing process for device 100, the distribution valve 28 is mounted in the distribution housing 80 by inserting the distribution valve 28 into the upper head 10 1 at the junction between the upper head 10 1 and lower head 10 2 before the upper head 10 1 and lower head 10 2 are assembled together.

[0061] Device 100, in particular the upper part 10 1 of the distribution head 10, includes the outlet 24.

[0062] Exit 24 leads to the outside of device 100.

[0063] The outlet 24 is located at the end of the distribution head 10, specifically in the upper part 10 1 of the distribution head 10. The outlet 24 is positioned on the left side of the distribution head 10 relative to axis A.

[0064] The contact surface 26 surrounds or borders the outlet 24.

[0065] Outlet 24 is arranged to distribute fluid in a direction substantially perpendicular to the support surface 26.

[0066] The outlet 24 is arranged to distribute fluid in a direction substantially perpendicular and opposite to the external force 18 exerted on the contact surface 26 at the distribution head 10.

[0067] On the FIGURES 1 à 4 , the pouch 2 is attached to the reservoir 6. To attach the pouch 2 to the reservoir 6, the device 100 further includes means 32 for screwing the pouch 2 to the barrel 55 so as to attach the reservoir 6.

[0068] The means for screwing 32 include a 32 screw pitch.

[0069] The pouch 2 includes a nozzle 34 designed to fit into the reservoir 6. The nozzle 34 is rigid and preferably made of PP or PE, and is preferably at least 8 mm long. The feed orifice 8 is positioned at the end of the nozzle 34.

[0070] In a variant of device 100, the nozzle 34 is pushed into reservoir 6 so as to fix the pouch 2 to the reservoir 6.

[0071] On the device 100, the reservoir 6 includes a sash 36 arranged to block the flow of fluid contained in the reservoir 6 to the bag 2 until the nozzle 34 of the bag 2 is pushed into the reservoir 6. Thus, before positioning the bag 2 above the reservoir 6, the reservoir 6 is airtight because the sash 36 is not yet pierced.

[0072] The nozzle 34 is arranged to pierce the seal 36. Thus, to attach the pouch 2 to the reservoir 6, the nozzle 34 must be inserted into the reservoir 6, and then the means 32 must be screwed to attach the pouch 2 to the drum 55 to secure the reservoir 6. During the step of screwing the means 32 to the drum 55, a finger 75 located in the bottom of the drum 55 presses against the bottom of the reservoir 6 to facilitate priming the device. In another embodiment, the reservoir 6 may comprise a rigid cylindrical container in which a piston slides; the finger 75 is then arranged to push said piston by passing through an orifice located in the bottom of the rigid cylindrical container.

[0073] The device 100 includes a supply valve 38 positioned at the supply port 8, more precisely inside the nozzle 34 in a supply seat 62, and which, in an open state, allows the passage of the fluid contained in the reservoir 6 to the bag 2, and which, in a closed state, does not allow it.

[0074] In the FIGURES 1 à 3 The reservoir 6 is arranged to reduce its internal volume after each opening of the supply valve 38. On the FIGURES 1 à 4 , the reservoir part 6 further includes the feed valve 38 housed at the feed seat 62, said valve 38 being located at the junction between the internal volume of the pouch 2 and an internal volume of the reservoir 6.

[0075] The supply valve 38 of device 100 is illustrated in FIGURE 6 .

[0076] The supply valve 38 comprises two parts: an upper part, formed by a cylinder, and a lower part. The lower part of the supply valve 38 includes a plunger or diaphragm 38 1. The supply valve 38 is typically made of TPO.

[0077] The feeding valve 38 is located inside the bag 2 and is arranged to: in its closed state, press itself against the feed port 8, and in its open state, move away from the feed port 8.

[0078] At rest, that is to say without the device 100 undergoing any external stress or force 18, the supply valve 38 is in its closed state.

[0079] The supply valve 38 includes a second anti-drip device located, along with the valve 38 and the supply seat 62, inside the nozzle 34. This second anti-drip device is arranged to limit the amount of product remaining in the supply orifice 8. The second anti-drip device may be mistaken for the supply valve 38. The supply valve 38 is arranged to close if force is applied to the bag 2.

[0080] Preferably, although less essential, at rest, i.e. without the device 100 undergoing any external stress or force 18, the valve 38 is also in its closed state.

[0081] When pocket 2 is filled with fluid to be distributed and the volume of pocket 2 decreases (for example due to an increase and / or application of the external force 18 on the contact surface 26): The distribution valve 28 (more precisely the diaphragm 28 4) moves away from the distribution seat 105 and the distribution valve 28 is in its open state; fluid exits through the outlet 24 and the bag 2 empties at least partially, the supply valve 38 is pressed against the inner wall of the nozzle 34 of the bag 2 (in particular the flap 38 1 of the valve 38) and blocks the passage of fluid from the supply orifice 8. The supply valve 38 is in its closed state; fluid cannot (or almost cannot) escape from the bag 2 into the reservoir 6.

[0082] When pocket 2 is filled with fluid to be distributed and the volume of pocket 2 increases (for example by releasing the external force 18 on the contact surface 26): The distribution valve 28 (more precisely the diaphragm 28 4) presses against the distribution seat 105 and the valve 28 is in its closed state; fluid cannot pass from the bag 2 to the outlet 24, the supply valve 38 is "aspirated" and the flap 38 1 of the valve 38 moves away from the internal walls of the tip 34 of the bag 2 giving to the supply orifice 8. The valve 38 is in its open state; fluid can pass from the reservoir 6 (passing through the supply orifice 8) to the bag 2 so as to refill the bag 2.

[0083] The reservoir 6 is equipped with a part 64 comprising a sealing skirt 60 having the operculum 36, said sealing skirt 60 being located at the junction of the nozzle 34 of the pouch 2 and the upper casing of the reservoir 6.

[0084] Part 64 of the reservoir 6 is integral with the inner casing of the reservoir 6. Part 64 of the reservoir 6 is in particular located in the upper part of the reservoir 6, that is to say in a housing of the reservoir 6 located at the junction between the reservoir 6 and the nozzle 34 of the pouch 2.

[0085] The supply port 8 is located at the end of the nozzle 34, that is to say at the junction between the reservoir 6 and the pouch 2.

[0086] There FIGURE 5 illustrates the sealing skirt 60 including the operculum 36.

[0087] The sealing skirt 60 is typically made of PP, and the lid 36 is also made of PP. The lid 36 is made of the same material as the sealing skirt 60. There is continuity of material between the sealing skirt 60 and the lid 36. Thus, the sealing skirt 60 and the lid 36 form a single piece.

[0088] Reservoir 6 is preferably made of polyolefin and is manufactured by blow molding. FIGURES 1 et 2 typically represent two configurations of the device 100 arranged to distribute a fluid.

[0089] The fluid comprises a liquid and / or a gas, and is preferably a liquid, a cream, a paste, a gel or a mixture thereof.

[0090] The plane of the junction between the upper head 101 and lower head 102 and the plane in which the distribution orifice 22 is located are parallel.

[0091] On the FIGURES 1 à 3 , the distribution head 10 extends predominantly longitudinally along axis A.

[0092] Unless otherwise stated, throughout this description, axis A will be defined by default as axis A in the stable position 12.

[0093] This axis A passes through the centroid of the distribution orifice 22 and the central axis of the distribution channel 20.

[0094] The central axis of the distribution channel 20 passes through the centroid of the junction between the upper head 101 and lower head 102.

[0095] In FIGURE 1 No external force is applied to the contact surface 26. The dispensing head 10 is therefore in a stable position 12. Thus, the device 100 is said to be in a stable position 12 when the plane containing the edge 66 of the pocket 2 and the plane containing the dispensing orifice 22 are parallel. In this case, the axis A intersects the edge 66 of the pocket 2 perpendicularly, specifically at its centroid.

[0096] In FIGURE 2 The external force 18 is exerted at the contact surface 26. The distribution head 10 is therefore in an inclined position 14. The plane containing the edge 66 of the pocket 2 and the plane containing the distribution orifice 22 are no longer parallel. The axis A passes through the centroid of the edge 66 but does not intersect it perpendicularly.

[0097] The distribution head 10 tilts at an angle of inclination 16. The angle of inclination 16 is defined, in FIGURE 2 , by the angle between (for example at the intersection on edge 66) of: the axis A or the longitudinal direction of the head 10 in the stable position 12 of the distribution head 10, with the axis A or the longitudinal direction of the head 10 in the tilted position 14 of the distribution head 10, that is typically when the distribution orifice 22 is no longer parallel to the edge 66 of the pocket 2.

[0098] This angle 16 is the same between: the direction connecting the distribution port 22 to the outlet 24 and / or to the surface 26 in the stable position 12 of the distribution head 10, and the direction connecting the distribution port 22 to the outlet 24 and / or to the surface 26 in the tilted position 14 of the distribution head 10.

[0099] In FIGURE 2 The distribution head 10 is typically inclined at a tilt angle of 25 degrees (25°). However, the distribution head 10 can be inclined at other tilt angles. In the case considered, the distribution head 10 is inclined to the right relative to the axis A of the distribution head 10.

[0100] Indeed, the dispensing head 10, apart from its stable position 12 and according to various possible inclined positions 14, is arranged to reach a maximum tilt position when the tilt angle 16 is inclined by at least 20°, preferably 30 degrees, or even at least 45 degrees, relative to said stable position 12, said maximum tilt position being arranged to decrease the internal volume of the pouch 2 typically by at least 20%. Thus, the dispensing head 10 cannot tilt beyond the maximum tilt position, even if the external force 18 is greater than the threshold force. If the device 100 is in its maximum tilt position and an external force 18 greater than the threshold force is applied to the contact surface 26, then such an external force 18 could damage the device 100.

[0101] THE FIGURES 7 à 12 illustrate another embodiment of a device 700 for distributing a fluid. Device 700 includes all the elements of device 100. Thus, only the differences with device 100 will be described. In this section, axis A is considered to be the axis on which the distribution head 10 is centered.

[0102] The distribution valve 28 of device 700 includes all the elements of the distribution valve 28 of device 100 except the part 28 1, tapered end 28 1, of the distribution valve 28 of device 100.

[0103] In device 700, the deformable wall 4 of pocket 2 includes a bellows 44.

[0104] Bellows 44 is a bellows 44 comprising one fold. In an alternative embodiment, device 700 may include at least one fold.

[0105] The bellows 44 is cylindrical in shape and is centered, when the device 700 is in stable position 12, on an axis collinear with the axis A. In this case, the bellows 44 therefore includes on its outer wall undulations propagating parallel to the axis A, that is to say parallel to the direction of elongation of the distribution head 10.

[0106] In FIGURE 7 , device 700 is in stable position 12.

[0107] The two parts 41 and 42 of the deformable wall 4 are identical. The device 700 can therefore tilt into different tilt positions 14 on both sides of the elongation axis of the distribution head 10 or even in all directions of tilt of the distribution head 10 around the axis A.

[0108] The bellows 44 is also arranged to be compressed when an external force 18, comprising at least one component parallel to the axis of the bellows cylinder 44 and oriented in the direction of the reservoir 6, is applied at the distribution head 10.

[0109] Bellows 44 is made of TPO

[0110] The device 700 includes locking means 50 arranged to limit and / or prevent stretching of one side of the bellows 44 during any inclined position of the distribution head 10. Indeed, the bellows 44 of the pocket 2 is contained within a rigid housing 50 which serves as a locking means 50. Thus, when the bellows 44 tilts to the left on the figure 8 , part 4 2 of the deformable wall of the bellows 44 collapses and folds back on itself while part 4 1 stretches slightly and comes to rest against the rigid housing 50. The extension of part 4 1 of the deformable wall 4 is therefore blocked by the rigid housing 50.

[0111] The locking means 50 are also arranged to limit and / or prevent stretching of the bellows 44 when the bellows 44 is subjected to any stretching force.

[0112] Thus, the distance separating the two ends of part 4 1 of the deformable wall 4, in the inclined position 14, is equal to or very slightly greater than the distance separating the two ends of part 4 1 of the deformable wall 4 from the stable position 12.

[0113] The distance separating the two ends of part 4 2 of the deformable wall 4, in the inclined position 14, is less than the distance separating the two ends of part 4 2 of the deformable wall 4 in the stable position 12.

[0114] The distance separating the two ends of part 4 1 of the deformable wall 4, in the inclined position, is greater than or equal to the distance separating the two ends of part 4 2 of the deformable wall 4 in the inclined position 14.

[0115] In the case where the bellows 44 is compressed, then the distance separating the two ends of parts 41 and 42 of the deformable wall 4 is less than the distance separating the two ends of parts 41 and 42 of the deformable wall 4 when no force is exerted on the distribution head 10.

[0116] In FIGURE 8 , the distribution head 10 is inclined on the left side of the elongation axis of the distribution head 10.

[0117] There is therefore an asymmetry between the two parts 41 and 42 of the deformable wall 4 of the bellows 44 in position 14.

[0118] Pocket 2 of device 700 includes two tips 34 1 and 34 2 positioned at the two ends, upper and lower, of pocket 2.

[0119] The upper end of pocket 2 includes a holding surface 68.

[0120] The 34 1 and 34 2 tips are cylindrical in shape.

[0121] Pocket 2 or module 46 includes means 32 for screwing pocket 2 to distribution head 10. Module 46 can be fitted or screwed into pocket 2.

[0122] The means 32 for screwing include a 32 thread pitch.

[0123] The nozzle 34 1 is positioned on the upper end of the pocket 2, i.e. on the retaining surface 68, and is arranged to screw into the inside of the distribution channel 20 in the distribution head 10.

[0124] The screw thread 32 is positioned on the outer wall of the nozzle 34 1. Thus, the nozzle 34 1 to the distribution head 10 screws into the inside of the distribution head 10.

[0125] The nozzle 34 2 is positioned on the lower end of the pouch 2, i.e. on a surface of the pouch 2 opposite to the retaining surface 68. The nozzle 34 2 is arranged to fit into and / or be integral with the reservoir 6.

[0126] When the device 700 is not subjected to an external force 18, for example on the FIGURE 7 , the support surface 68 is a flat surface.

[0127] Device 700 is designed so that the upper end of pouch 2, particularly the support surface 68, deforms as little as possible to maximize the reduction in the volume of pouch 2. This can be achieved by: a holding surface 68 sufficiently rigid so that its deformation, caused by the inclination of the pouch 2, at the level of the attachment of the tip 34 1, includes only deformation heights less than or equal to 2 or 3 mm with respect to the flat surface of the holding surface 68 (i.e. when no force is applied at the level of the contact surface 26), and / or a consolidation of the upper end of the pouch 68 (with walls of the tip 34 1). The said consolidation can typically be carried out at the level of a plate 52 (or pusher 52) integral with the distribution head 10 and preferably fixed by fitting the pouch 2 onto the nozzle 34 1 at the level of the plate 52 (or pusher 52) of the distribution head 10, and / or the nozzle 34 1 which includes an outside diameter almost as large as the diameter of the bellows 44, for example being at least two-thirds of the diameter of the bellows 44.

[0128] The distribution head 10 is a single, unique piece that breaks down into: a middle part (preferably cylindrical), centered on the axis A, and in which is disposed in its center the distribution channel 20, an applicator, carried by the middle part, and comprising at least one curved shape (i.e. a curve) comprising the contact surface 26 and / or the outlet 24. For the device 700, the curved shape is a sphere and extends over the entire surface of the applicator; a part, in the form of a plate 52, carrying the middle part and positioned at the end of the distribution head 10, i.e. the end of the distribution head 10 giving on the holding surface 68 of the pocket 2.

[0129] The part in the form of a tray 52 and giving access to the holding surface 68 includes the pusher 52.

[0130] The distribution channel 20 passes through all parts of the distribution head 10 and is centered on the central axis of the distribution head 10, i.e. on axis A.

[0131] The applicator, i.e. the spherical part of the distribution head 10, is located at the upper end of the distribution head 10 and thus includes the outlet 24 through which the fluid from the device 700 escapes.

[0132] The outlet 24 of the device 700 is arranged to distribute fluid according to the elongation direction of the distribution head 10.

[0133] The contact surface 26 of the distribution head 10, specifically of the applicator, extends over the entire perimeter of the curved shape of the applicator and therefore over the entire spherical part of the distribution head 10. In this way, the device 700 comprises an extended contact surface 26 which makes it possible to exert an external force 18 at a multitude of localized positions on the applicator of the distribution head 10. The device 700 can therefore adapt to different forms of application of external force 18.

[0134] In the case of the FIGURE 7 no external force 18 is applied to the contact surface 26.

[0135] The longitudinal direction of the distribution head is defined by axis A, that is, the axis on which the middle part of the distribution head 10 is centered.

[0136] The distribution head 10 and the reservoir 6 are axially aligned along the longitudinal direction when the head 10 is in its stable position 12, that is to say there is a co-axiality of the distribution head 10 with the reservoir 6.

[0137] The distribution head 10 and the pocket 2 are also axially aligned along the longitudinal direction when the head 10 is in its stable position 12, that is to say there is a co-axiality of the distribution head 10 with the pocket 2.

[0138] The distribution head 10 is arranged to tilt to the opposite side on which the external force 18 is exerted at the level of the contact surface 26.

[0139] The arrangement of the device 700, i.e. the use of the bellows 44 and a spherical contact surface 26, means that the distribution head 10 and the pocket 2 follow the same inclination movement when the external force 18 is applied to the device 700 at the level of the contact surface 26.

[0140] In FIGURE 8 , an external force 18 is exerted on the right side of the contact surface 26. The distribution head 10 and the pocket 2 are inclined on the left side of the elongation axis of the distribution head 10, i.e. on the left side of the axis A.

[0141] The distribution head 10 is equipped with the pusher 52 arranged for: to press against the holding surface 68 of the pocket 2, preferably a holding surface 68 of the bellows 44, and to keep said holding surface 68 fixed relative to the distribution head 10.

[0142] In the case of the FIGURE 8When the dispensing head 10 is tilted, the locking means 50 press on the pusher 52, and the pusher 52 itself presses on the retaining surface 68 of the pouch 2. FIGURES 7 and 8 , the retaining surface 68 and the pusher 52 are held assembled by tightening the locking means 50 on a housing 70 containing the reservoir 6.

[0143] The 70 case can be made of metal and / or polymer.

[0144] The locking means 50, i.e. the rigid housing 50, are arranged to limit and / or prevent stretching of one side of the pocket 2, and thus limiting the inclination of the distribution head 10.

[0145] The locking means 50 is cylindrical in shape.

[0146] The medium 50 includes a head insertion hole 10.

[0147] The distribution head 10 is arranged in the orifice of the locking means 50. Thus the orifice of the locking means 50 surrounds the middle part of the distribution head 10. The orifice of the locking means 50 therefore has an internal diameter larger than the middle part of the distribution head 10 so as to allow the inclination of the distribution head 10 while limiting it.

[0148] Thus, the internal and / or external diameter of the locking means 50 can be chosen so as to define the maximum angle of inclination.

[0149] The locking means 50 include, on an outer wall, means for screwing 102 the locking means 50 to the rigid housing 70 comprising the reservoir 6. The rigid housing 70 is arranged to contain the entire volume of the reservoir 6.

[0150] Tank 6 is equipped with a part comprising: the supply valve 38 housed at a supply seat, said valve 38 being located at the junction between the inner volume of the bag 2 and an inner volume of the reservoir 6, and a cap 40 having a lid 42, said cap 40 being located at the junction between the inner volume of the bag 2 and the distribution channel 20, and arranged to fit into the nozzle 34 1 (in the inner part of the nozzle 34 1) and a connecting element 46 linking the supply valve 38 and the cap 40, said connecting element 46 being arranged to deform when the bag 2 is deformed.

[0151] The reservoir component 6, including the cap 40, further includes the feed valve 38 housed at the feed seat 62, said valve 38 being located at the junction between the internal volume of the pouch 2 and an internal volume of the reservoir 6.

[0152] The cap 40 further includes insertion means arranged to push the supply valve 38 into the nozzle 34 2, more precisely into the inner part of the nozzle 34 2 of the bag 2.

[0153] These insertion means are connected to the feeding valve so as to insert it into the bag, forming an element equipped, preferably at the end opposite the feeding valve, with means for grasping and securing it more precisely by fitting it into the bag on the side of the upper nozzle 34 1 and / or lower nozzle 34 2

[0154] The supply valve is located at the lower nozzle.

[0155] The cap's seal is housed in the upper end.

[0156] The connecting element links the supply valve to the insertion means.

[0157] In the case of FIGURES 7, 8 and 9, the supply valve 38, the cap 40 fitted with the operculum 42 and the connecting element 46 form a single connecting piece 701.

[0158] Thus, regarding tips 341 and 342 of pocket 2: the nozzle 34 1 of the bag 2 includes an internal diameter, hollow (and cylindrical in shape), arranged to accommodate the cap 40 of the connecting piece 701, and the nozzle 34 2 of the bag 2 includes an internal diameter, hollow (and cylindrical in shape), arranged to accommodate the supply valve 38 of the connecting piece 701 (and to fit onto the upper end of the reservoir 6)

[0159] In the case of FIGURES 7 and 8 , the connecting element 46 is flexible and is located in the internal volume of pocket 2.

[0160] The device 700 further includes a perforator 48, located in the distribution head 10, and arranged to perforate the operculum 42 of the stopper 40 housed in the distribution seat at the time of assembly of the device 700. Mainly, the perforator 48 thus includes an end having an acute angle, oriented towards the operculum 42 of the stopper 40 and arranged to perforate the operculum 48 of the stopper 40.

[0161] In the case of FIGURES 7 to 9 , the connecting element 46 of the connecting part 701 is flexible or breakable after the assembly of the pouch 2 on the reservoir 6.

[0162] In the case of device 700, the connecting element 46 is flexible. In this way, with each tilt of the dispensing head 10, the connecting element 46 follows the movement of the pouch 2 and does not break. The pouch 2 is no longer aligned with the central axis of the reservoir 6 and axis A. It should be noted that the pouch 2 can tilt relative to a stable position 12, but also compress along axis A even in the stable position 12, including for device 100. The device is arranged to dispense product by tilting the dispensing head 10 relative to a stable position 12, but it is also arranged to dispense product by compressing the dispensing head 10 along axis A.

[0163] The 6 tank of the 700 device is formed from a single piece.

[0164] The reservoir 6 and the pouch 2 of the 700 device are formed from a single piece.

[0165] The reservoir 6 of the device 700 includes a bellows 6 1 of the reservoir 6. Thus, the reservoir 6 of the device 700 includes an outer wall comprising two parts: a first part 6 1 including the bellows 6 1 of the reservoir 6, a second part 6 2 positioned below the bellows 6 1 of the reservoir 6.

[0166] The bellows 6 1 of the reservoir 6 (preferably cylindrical) is centered on axis A when the head is in stable position 12 ( FIGURE 7 ). The bellows 6 1 of the reservoir 6 therefore includes on its outer wall parallel undulations 6 1 succeeding each other parallel to the axis A, that is to say parallel to the direction of elongation of the distribution head 10 when the distribution head 10 is in a stable position.

[0167] The reservoir 6, more precisely the bellows 6 1 of the reservoir 6, is arranged to compress in a direction parallel to the axis A and in a direction from the reservoir 6 towards the pocket 2.

[0168] The reservoir 6, more precisely the part 6 2 of the reservoir 6, is arranged to compress towards the interior of the reservoir 6, preferably in a direction orthogonal to the axis A and in a 90 direction from the outer wall of the reservoir 6 towards the axis of the reservoir 6, i.e. the axis A.

[0169] For this purpose, the reservoir 6 includes on its outer wall grooves 92 or stiffnesses 92, in particular on the part 6 2 of the reservoir 6, arranged to move towards the interior of the reservoir 6. Thus the grooves 92 are arranged to compress the reservoir 6 in the direction orthogonal to the axis A and in the direction 90, at each decrease in the volume of fluid contained in the reservoir 6.

[0170] The 92 grooves of the tank are located below the bellows 6 1 of the tank 6 more precisely in the part 6 2 of the tank 6.

[0171] The reservoir 6, more precisely part 62 of the reservoir 6, is arranged to compress by entering the inside of the reservoir 6 (more precisely inside the bellows 61), preferably in a direction parallel to axis A as illustrated in the figure 11 .

[0172] On the FIGURES 11 and 10 , the device 700 is in stable position 12. These figures do not illustrate the locking means 50, the housing 70 of the reservoir 6 and the distribution head 10.

[0173] The pouch 2 and the reservoir 6 of the device 700 are joined together to form a single unit. This unit is preferably obtained by blow molding or 3D printing.

[0174] More specifically, the FIGURES 10 and 11 illustrate the 700 device including the 2-pocket and 6-reservoir blown after complete or incomplete use of the 700 device.

[0175] Indeed, in FIGURE 10 We can see that: The upper part 61 (i.e., the bellows 61 of the reservoir 6), comprising undulations parallel to the central axis of the device 1000, is compressed. Figure 10 , the spacing between the undulations of reservoir 6 has decreased compared to the FIGURES 7, 8 and 9 Thus, the length of the bellows 6 1 of the tank 6 in FIGURE 10 is less than the length of the bellows 6 1 of the tank 6 of the FIGURES 7, 8 and 9 The bellows 61 of the tank 6 is therefore compressed. The lower part 62 comprises a smooth wall structured by stiffeners 92, also called grooves 92, arranged so that this part 62 of the tank 6 deforms radially to avoid creases, for example, pinching in the wall of the tank 6. The shape of the stiffeners 92 in longitudinal "embossing" is illustrated by the cross-section of part 62 of the tank 6 in FIGURE 12 .

[0176] Thus, the FIGURE 10illustrates, after several fluid distributions, a reduced form of the reservoir 6. The use of the device 700 is not complete, that is to say there remains fluid contained in the pocket 2 and the reservoir 6 of the device 700.

[0177] In FIGURE 11 The use of device 700 is complete, that is to say, there is no more fluid contained in reservoir 6 of device 700. There may be a certain amount remaining in pocket 2.

[0178] In Figure 11 The spacing between the corrugations of reservoir 6 is the same as the spacing of the corrugations of reservoir 6 of the FIGURE 10 However, part 62 of tank 6 was compressed in the direction of axis A.

[0179] In the case of device 700, if the reservoir 6, in particular part 6 1 of the reservoir 6, has an outside diameter greater than the outside diameter of part 6 2 of the reservoir 6, then part 6 2 is arranged to fit inside the reservoir 6.

[0180] Thus, after each tilt of the distribution head 10, the internal volume of the reservoir 6 decreases, preferably compresses, so that the lower part 6 2 of the reservoir 6 approaches the upper part 6 1 of the reservoir 6 and / or compresses radially on the part 6 2.

[0181] Indeed, in FIGURE 11 , the lower part 6 2 of the tank 6 is compressed and folded inside the upper part 6 1 of the tank 6, in order to optimize the draining of fluid contained in the tank 6.

[0182] THE FIGURES 13 to 16illustrate another embodiment of a device 1300 for distributing a fluid. Only the differences with device 700 will be described.

[0183] The distribution valve 28 of device 1300 is identical to the distribution valve of device 700.

[0184] The 1300 device includes: the reservoir 6 positioned in the rigid housing 70, the pouch 2 supported by the reservoir 6, the distribution head 10 supported by the pouch 2, a cover 94 being in the case of the FIGURES 13 to 16 , a rigid hood 94 positioned above the pouch 2, a dispensing button 72 forming part of the dispensing head 10, a cap 74 covering the dispensing button 72, the hood 94, the dispensing head 10, the pouch 2 and the reservoir 6.

[0185] The cap 74 is designed to fit onto the rigid housing 70 when the device 1300 is no longer used to dispense fluid. The entire internal volume of the reservoir 6 is contained within the rigid housing 70.

[0186] The rigid 70 case includes an inner wall 70 1.

[0187] The rigid 70 case can be made of metal and / or glass, and / or wood.

[0188] The 1300 device (more precisely the 10 head) includes a maximum tilt position.

[0189] The device 1300 includes the cover 94 arranged to limit and / or prevent the tilting of the distribution head 10 beyond its maximum tilt position. Thus, the cover 94 blocks the tilting of the distribution head 10 when the distribution head has reached its maximum tilt position.

[0190] The hood 94 includes means for screwing 104 the hood 94 to the rigid housing 70, thus allowing the distribution head 10, the pouch 2 and the reservoir to be fixed to the rigid housing 70.

[0191] The hood 94, as with the device 700, includes an opening positioned on its central axis, this axis being collinear with axis A. The opening in the hood 94 is designed to allow the distribution head 10 to pass through it. The diameter of the opening in the hood 94 is therefore larger than the diameter of the distribution head 10. The maximum tilt position of the distribution head 10 is determined by the diameter of the hood opening. In a variant of the device 1300, the diameter of the opening in the hood 94 is designed so as not to obstruct the tilt of the distribution head 10.

[0192] The 72, 10 1 distribution button of the 10 head comprises an outer wall and an inner wall.

[0193] The distribution head 10, on its outer wall, includes means 106 for screwing the part 10 2 of the distribution head 10 including the channel 20 to the distribution button 72, typically to the inner wall of the distribution button 72.

[0194] The dispensing button 72 further includes an orifice 73 positioned on the upper wall of the dispensing button 72 and passing through both the outer and inner walls of the dispensing button 72. The orifice 73 is arranged so as to be centered on the outlet 24 of the dispensing head 10 when the device 1300 is assembled, that is, when the dispensing button 72, the cover 94, the dispensing head 10, the pouch 2, the reservoir 6, and the rigid housing 70 are assembled together. Thus, when part 102 is attached to the dispensing button 72, fluid can escape from the outlet 24 through the orifice 73 of the dispensing button 72 of the head 10.

[0195] As the distribution button 72 is fixed by the screw means 106, the outer wall of the distribution button 72 of the head includes the contact surface 26.

[0196] The distribution button 72, being fixed to the part 10 2, follows the positions, i.e. the stable position 12 and / or the inclined positions 14, of the entire distribution head 10.

[0197] The reservoir 6 includes a cap 96 arranged to delimit at least part of the reservoir 6. The cap 96 comprises two parts: a platform 98, and a trunk 76 housed in the tank 6 and carrying the platform 98 of the cap 96.

[0198] Platform 98 and trunk 76 are interconnected.

[0199] The trunk 76 is cylindrical and is centered on the central axis of the distribution channel 20, said central axis being collinear with axis A. Thus, the trunk 76 and the distribution channel 20 are coaxial in position 12. The trunk 76 is also centered on the central axis of the deformable shell 56 of the reservoir 6.

[0200] The platform 98 of the cap 96 comprises a rigid flat wall and having at its ends two wedge-shaped edges 98 1 oriented towards the interior of the reservoir 6.

[0201] The reservoir 6 includes the deformable envelope 56 delimiting at least in part the internal volume of the reservoir 6, said deformable envelope 56 comprising successive undulations 56 2 radially around the axis A.

[0202] The deformable casing 56 of the tank 6 thus comprises three parts: an upper part 56 1 comprising edges, preferably smooth, and running along the inner wall 70 1 of the rigid case 70, a lower part 56 2 comprising successive radial undulations 56 2, a lower part 56 3 bearing the undulations 56 2 and comprising a filling orifice 82.

[0203] The lower part 56 3 is a rigid wall, that is to say more rigid than the lower part 56 2 comprising the undulations 56 2.

[0204] The filling orifice 82 includes a central axis centered on the central axis of the reservoir 6 (i.e., on axis A). Thus, the filling orifice 82 and the reservoir 6 are coaxial, and the filling orifice 82 and the stem 76 of the cap 96 of the reservoir 6 are coaxial.

[0205] The filling orifice 82 is circular in shape and includes a diameter equivalent to the external diameter of the trunk 76.

[0206] The filling port 82 is arranged to fit and / or embed the shaft 76 of the cap 96 of the reservoir 6 during the assembly of the device 1300, more specifically during the assembly of the reservoir 6. In this way, the shaft 76 is arranged to trap an air bubble (not shown) when the shaft 76 is assembled in the filling port 82 after the reservoir 6 has been filled with the fluid, the said air bubble being trapped in the shaft 76. This prevents this air bubble from rising into the reservoir 6 and then the pocket 2.

[0207] Part 56 3 of the tank 6, including the filling port 82, includes hermetic closing means 82 1. The hermetic closing means 82 1 include a sealing skirt 82 1.

[0208] The filling orifice 82 is arranged to be closed by the cap 96 of the reservoir 6, in particular by the trunk 76. The part 56 3 of the deformable envelope 56 of the reservoir 6 is arranged to be separated from the cap 94, in particular from the trunk 76, for example, with suction cups during a filling phase of the device 1300.

[0209] The deformable wall 56 of the tank is fixed or welded to the cover 94 of the tank 6.

[0210] The corner edges 98 1 of the platform 98 of the tank 6 are arranged to retain the deformable wall 56 of the tank 6. In particular, the corner edges 98 1 of the platform 98 of the tank 6 press the upper end of the wall 56 against the inner wall 70 1 of the rigid housing 70.

[0211] The deformable envelope 56 is arranged to fold back towards the platform 98 with each decrease in volume of the deformable envelope 56.

[0212] The deformable envelope 56 is arranged to fold around the trunk 76 with each decrease in volume of the deformable envelope 56.

[0213] Indeed, on the FIGURES 13 and 14 The device 1300 is completely filled. Thus, the reservoir 6, containing all the available fluid of the device 1300, therefore comprises its maximum internal volume. In this case, the successive undulations 56 2 of the deformable shell 56 of the reservoir 6 are radial with respect to the central axis of the trunk 76, i.e. around the axis A.

[0214] In FIGURE 15 , almost all the fluid contained in the deformable envelope 56 of the tank 6 has been distributed. The deformable envelope 56 has folded back towards the platform 98. Thus, the undulations 56 2 of the deformable envelope 56, initially radial around the axis of the trunk 76, have moved towards the trunk 76 and thus form undulations 56 2 .

[0215] The smooth edges 56 1 , of the deformable envelope 56, initially pressed against the inner wall 70 1 of the rigid casing 70 are arranged to approach the cap 96 of the reservoir 6, in particular the platform 98, at each decrease in the volume of the fluid contained in the reservoir 6.

[0216] Such a configuration allows for maximum consumption of the fluid volume contained in tank 6 and optimizes fluid delivery: by increasing the surface area of ​​the deformable wall 56 of the tank 6, in particular by the undulations 56 2 of the deformable wall 56, and by arranging the deformable wall 56 so that it conforms as closely as possible to the rigid shapes of the tank, in particular the hood 96, at each reduction in volume of the shell of the tank 6.

[0217] The device 1300 for distributing a fluid includes the pouch 2 having an internal volume arranged to contain the fluid, the internal volume being delimited at least in part by the deformable wall 4.

[0218] The pocket 2 is formed by a bottom wall 21 and by the flexible deformable wall 4.

[0219] Walls 21 and 4 face each other.

[0220] Wall 4 forms a skirt, concave in shape, and has an upper part and a lower part.

[0221] The deformable wall 4 (more precisely its lower part) is fixed or welded to the bottom wall 21.

[0222] The bottom wall 21 preferably has a planar or substantially planar shape.

[0223] The bottom wall 21 is a rigid wall, that is to say, more rigid than wall 4.

[0224] The deformable wall 4 is for example a thin wall and the bottom wall 21 is for example a thicker wall than the wall 21.

[0225] Walls 21 and 4 are for example made of polypropylene (PP).

[0226] The deformable wall 4 is preferably made of PP with a polymer or plastomer additive (such as Vistamaxx™ < 6202), in order to reduce its hardness so that the hardness of the wall 4 is less than 80 Shore D. This avoids excessive thinness and fragility of the wall 4.

[0227] The bottom wall 21 is parallel to the platform 98. More precisely, the bottom wall 21 is fixed to the platform 98 of the cap 94. In a variant of device 1300, the bottom wall 21 and the platform 98 are a single piece.

[0228] The supply port 8 is located at the bottom wall 21 and pierces the bottom wall 21 and the platform 98 so as to connect the reservoir 6 to the pocket 2.

[0229] The deformable wall 4 of the pocket 2 includes areas of weakness 78 and / or joints 78 arranged to allow inclined positions 14 but stable of the distribution head 10 in the absence of external force 18.

[0230] These areas of weakness 78 correspond to an area 78 where the deformable wall of the pocket 4 is less thick than on the other parts of the deformable wall 4.

[0231] When the distribution head 10 is in inclined position 14, the area of ​​weakness 78 of the deformable wall 4 is arranged to press against and / or approach the bottom wall 21 of the pocket 2, thus forming the preferred (and stable) inclined position 14 of the distribution head 10.

[0232] As long as no secondary external force is applied to the contact surface 26, the device 1300 remains and maintains this inclined but stable position 14 of the distribution head 10. However, this secondary external force must be applied on the opposite side to the side on which the external force 18 was exerted in order to position the distribution head 10 in its inclined position 14.

[0233] In all cases, the deformation effort is more difficult at the beginning of the inclination to then arrive more easily or automatically at a preferred position in a precise angle to within 5 degrees, thus allowing for a dosage.

[0234] Indeed, in FIGURE 15The external force 18, relative to the central axis of the distribution channel 20, is applied on the right side of the distribution head 10. The distribution head 10 and the pouch 2 maintain an inclined but stable position 14 to the left. Thus, to return the device 1300 to its initial stable position, that is, before the application of any external force 18 (i.e., when there is coaxiality between the distribution head 10 and the reservoir 6), the secondary external force must be applied on the left side of the distribution head 10, i.e., on the side of the inclined position 14.

[0235] In an embodiment of a method for assembling device 1300, illustrated in FIGURE 16The deformable wall 56 of the reservoir 6, specifically part 563, is pulled outwards to expose the filling opening 82. The reservoir 6 is then filled with fluid and closed with the cap 96 by pushing the deformable wall 56 of the reservoir 6 inwards, specifically part 563 (the reverse of the previous movement). The reservoir 6 includes the sealing skirt that seals part 563, i.e., the bottom of the reservoir 6 mounted in the cap 96. The deformable wall 56 of the reservoir 6 includes the skirt and is made of the same material.

[0236] The skirt is more rigid than part 56 2 of the deformable wall 56.

[0237] In the case of a blow-fitting of the 1300 device, the sealing skirt can be made of a more rigid material because the thicknesses of the deformable wall 56 can be reduced.

[0238] In the case of injection molding of the 1300 device: deformable wall thicknesses vary between 0.4 mm and 0.5 mm. In this case, a flexible material is used to construct the reservoir, specifically the deformable wall 56. The sealing skirt is made of a more rigid material than the material used for the deformable wall 56.

[0239] In a variant of devices 100, 700, 1300, there may be two fluids contained in two separate reservoirs 6. Devices 100, 700, 1300 may have a preferred inclination for each of the fluids, and / or a third inclination arranged to mix the fluids. The third inclination may be, for example, a support force 18 parallel to the elongation direction of the distribution head 10, or collinear with axis A.

[0240] THE FIGURES 17 to 18illustrate another embodiment of a 1700 device for distributing a fluid. Only the differences with devices 100, 700 and 1300 will be described.

[0241] The 1700 device for distributing the fluid includes: a pocket 2 comprising an inner pocket 21 and an outer pocket 22, said inner pocket 21 being located at least partly in the outer pocket 22, said inner and outer pockets 21, 22 each having an inner volume arranged to contain the fluid, said inner volume of the outer pocket 22 being delimited at least partly by a movable wall 3, said movable wall 3 being arranged to, under the exercise of a support pressure 18, decrease the inner volume of the inner pocket 21 and the inner volume of the outer pocket 22 by deforming, an outlet 24 arranged to distribute the fluid.

[0242] The internal volume of the inner pocket 2 1 is delimited at least in part by: a piston 5 attached to a junction wall 7 delimiting at least part of the internal volume of the outer pocket 2 2 , a housing 9 for the piston 5 arranged to receive the piston 5 and guide it during an axial movement 11 of said piston 5 in the housing.

[0243] The 1700 device is arranged to guide the fluid through a circuit comprising: a first path, passing: o from the inside of the outer pocket 2 2 to the inside of the inner pocket 2 1 and / or the piston 5, into the inner pocket 2 1, via at least one connecting orifice 13 linking the inner volume of the outer pocket 2 2 to the inside of the inner pocket 2 1 and / or the piston 5, and a second path, passing from the inside of the inner pocket 2 1 and / or the piston 5 to the outlet 24.

[0244] The 1700 device also includes a feed port 8 connecting a reservoir 6 to the internal volume of the outer pocket 2 2.

[0245] From the FIGURE 17 , the term volume of pocket 2 means the sum of the internal volume of the inner pocket 2 1 and the internal volume of the outer pocket 2 2 .

[0246] Pocket 2 is delimited by the movable wall 3, the junction wall 7 and the bottom wall 21.

[0247] The device 1700 further includes braking means 15 arranged to block axial movement 11 of the piston 5 within the housing 9, reducing the internal volume of the inner pocket 21 and the outer pocket 22 when the movable wall 3 is subjected to a support pressure 18 (previously called external force 18) less than a threshold force. The device 1700 includes "free" movement means in which the internal volume of the pocket 2 decreases without overpressure of the liquid during the closure of the connecting orifice 13 (acting as an inlet valve). During this step, the liquid is forced back into the reservoir 6 through the orifice 8, and the pocket 2 is deformed. The piston 5 rubs against the internal walls of the housing 9 and / or the guiding means 65 of the piston 5 within the housing 9. This step allows for an acceleration / impulse of the bearing surface 26.Finally, the device 1700 includes means for increasing pressure: as soon as the connecting orifice 13 is closed, the piston compresses the product in the internal pocket 21. Preferably, the support force during the pressure increase is less than the threshold force.

[0248] Piston 5 and housing 9 are therefore arranged to allow three phases of movement of piston 5 in housing 9 during an exercise of force 18: 1. A blocking phase in which the piston 5 does not move beyond the means 15 as long as the force 18 is less than the threshold force, then a crossing of the means 15 as soon as the force 18 is greater than this threshold force; 2. Free movement of the piston 5 in the housing 9 once the piston 5 has passed the means 15 (acceleration in space during the closure of the orifice 13, space between the piston and the housing), typically by a translation of the piston 5 of at least 0.5 mm or even 1 mm in its housing 9, allowing an impulse or acceleration to be given to the threshold force (kinetic energy); and 3. A compression phase, including an increase in pressure in the pocket 2 after closure of the orifice 13.

[0249] The most important are phases 2 and 3, phase 1 is optional and / or can be found by the restoring forces of deformation or displacement of the external pouch.

[0250] The axial movement 11 of the piston 5 is along the central axis of the piston 5.

[0251] The device 1700 includes a support surface 26, also called contact surface 26, arranged to, under the exercise of the support pressure 18 and via the distribution head 10, decrease the internal volume of the inner pocket 2 1 and outer pocket 2 2 by deforming and displacing the movable wall 3.

[0252] The bearing surface 26 is integral with the distribution head 10, and preferably includes at least a part of the distribution head 10.

[0253] The 1700 device includes output 24.

[0254] Exit 24 leads to the outside of device 1700.

[0255] Output 24 is located on distribution head 10.

[0256] Outlet 24 is arranged to distribute fluid in a direction substantially perpendicular to a direction of movement of the distribution head 10.

[0257] The distribution head 10 is arranged to follow a translational movement.

[0258] Outlet 24 is arranged to distribute fluid in a direction substantially parallel to an elongation axis of the distribution channel 20.

[0259] The 1700 device includes a distribution orifice 22 connecting the pouch 2 to the distribution channel 20.

[0260] The distribution valve 28 is inside the distribution channel 20 of the device 1700.

[0261] The distribution channel 20 of the device 1700 includes an internal volume arranged to only include (or accommodate) the distribution valve 28. Thus only the distribution valve 28 is included in the distribution channel 20.

[0262] The device 1700 includes the distribution valve 28 located in the distribution channel 20, which in an open state allows fluid to pass from inside the inner pocket 21 to the outlet 24 through the distribution orifice 22 and the distribution channel 20 (specifically through the housing 80), and, in a closed state, does not allow fluid to pass from inside the inner pocket 21 to the outlet 24 through the distribution orifice 22 and through the distribution channel 20 (specifically through the housing 80).

[0263] The distribution head 10 is attached to the bottom wall 21 by overmolding or bi-injection of the distribution head 10 onto the bottom wall 21.

[0264] Thus, the distribution channel 20 comprises and / or is formed by a wall of the distribution head 10 and an upper wall of the bottom wall 21.

[0265] The dispensing head 10 includes a spray 10.

[0266] The distribution head 10 is located outside the pocket 2.

[0267] The distribution head 10 is arranged so that, by exerting a pressure 18 on the bearing surface 26, it moves at least in the same direction as the translational movement. The translational movement of the distribution head 10 is in the same direction but opposite to the axial movement 11 of the piston 5.

[0268] Part of the distribution head 10 is arranged, under the exercise of the support pressure 18, to slide at least in part along the outer wall of the outer pocket 2 2 so as to deform the movable wall 3 of the outer pocket 2 2.

[0269] The bearing surface 26 is arranged to, under the exercise of pressure, decrease the internal volume of the inner pocket 2 1 and outer pocket 2 2 by deforming the movable wall 3, more precisely by crushing it towards the junction wall 7.

[0270] The deformable movable wall 3 has shape memory. When this wall 3 is not subjected to any external stress, it returns to or remains in the shape illustrated in FIGURE 17 , which maximizes the volume of the inner pocket 2 1 and outer pocket 2 2.

[0271] The bearing surface 26, accessible from outside the device 1700 by a user's hand, has a minimum surface area of ​​10 mm²

[0272] The housing 9 of the piston 5 is delimited at least in part by the bottom wall 21. A part of the bottom wall 21, that is to say the part of the bottom wall 21 in contact with the distribution channel 20, is integral with the housing 9 of the piston 5.

[0273] The bottom wall 21 delimits at least in part the volume of the outer pocket 2 2.

[0274] The junction wall 7 delimits at least in part the piston 5.

[0275] The bottom wall 21 delimits at least in part the housing 9 of the piston 5.

[0276] The gap between wall 7 and wall 21 defines the volume of the inner pocket 21.

[0277] In device 1700, the braking means 15 are integral with the housing 9 of the piston 5 and preferably include at least one inclined tongue 17 towards the inside of the housing 9.

[0278] The 1700 device includes a 17-inch tab.

[0279] In device 1700, the movable wall 3 is separated from the junction wall 7. The junction wall 7 is arranged to delimit the internal volume of the pouch 2 and the internal volume of the reservoir shell 6.

[0280] The junction wall 7 has a substantially flat shape. In the case of device 1700, the junction wall 7 is rigid, that is to say, more rigid than the deformable wall 3 of pocket 2.

[0281] The movable wall 3 is located between the bottom wall 21 and the junction wall 7.

[0282] The connecting wall 7 has the same rigidity as the bottom wall 21.

[0283] The connecting wall 7 is fixed to the movable wall 3 of the pocket 2.

[0284] The movable wall 3 is fixed to the bottom wall 21 of the pocket 2.

[0285] The deformable wall 3 is flexible.

[0286] The movable wall 3 is typically made of TPO.

[0287] Piston 5 is partially delimited by the junction wall 7.

[0288] The piston 5 is fixed to the junction wall 7 by welding and / or molding

[0289] Piston 5 is integral with the flat part of the junction wall 7.

[0290] The junction wall 7 is made of PP.

[0291] The piston 5 is made of the same material as the junction wall 7. On the device 1700, the piston 5 and the junction wall 7 form a single piece.

[0292] Thus, piston 5 is positioned between the flat part of the junction wall 7 and the housing 9 for piston 5.

[0293] The housing 9 for piston 5 is positioned between piston 5 and distribution channel 20.

[0294] The piston 5 is hollow and cylindrical and includes an outer diameter delimited by the junction wall 7.

[0295] The outer diameter of the piston 5 includes an increase in its diameter at the end of the piston 5 that meets the housing 9 of the piston 5. This arrangement allows for a tight, linear annular contact during compression phases, i.e., when the distribution head 10 is moving in a translational fashion, reducing the volume of the pocket 2. This allows, among other things, for increased sealing performance of the device 1700. A small rotational movement (for example, of the ball joint type) is optionally complementary to this translational movement.

[0296] The device 1700 further includes a feed port 8 connecting the feed channel 78 and / or a reservoir 6 to the volume of the outer pocket 2 2.

[0297] Device 1700 includes reservoir 6. Reservoir 6 communicates with outer pocket 2 2 via feed port 8. Reservoir 6 includes an internal volume arranged to contain the fluid.

[0298] The device 1700 is arranged to guide the fluid along the second path, at each pressure 18 on the movable wall 3 greater than the threshold force, and / or, at each decrease in the internal volume of the inner pocket 2 1 and the outer pocket 2 2 for which the connecting orifice 13 is closed, thus causing the movement of the piston 5 in the housing 9. The movement of the piston 5 in the housing 9 causes a compression of the product present in the volume of the pocket 2.

[0299] The connecting orifice 13 closes after (sufficient) pressure on the movable wall 3, thus forming the supply valve of the inner bag 2 1.

[0300] The 1700 device is arranged to guide the fluid along the first path: after the end of each support pressure 18 greater than the threshold force, that is to say when the movable wall 3 is no longer under the exercise of a support pressure 18 greater than the threshold force, and / or at each increase in the internal volume of the inner pocket 2 1 and the outer pocket 2 2 for which the connecting orifice 13 is open, that is to say when the piston 5, located in the housing 9, returns towards and into the outer pocket 2 2.

[0301] Connection port 13: is formed at a junction 19 between one end of the piston 5 and one end of the housing 9 of the piston 5, and / or includes a hole 23 located in the housing 9 of the piston 5.

[0302] The connecting port 13 is arranged for: to close during a movement of piston 5 reducing the internal volume of pocket 2, to open during a movement of piston 5 increasing the internal volume of pocket 2.

[0303] It is noted that this embodiment includes a cavity 139.

[0304] This cavity 139 corresponds to the internal volume of piston 5.

[0305] This cavity 139 is not closed but the fluid contained in the reservoir 6 can flow from the reservoir 6 to the cavity 139, and / or from the cavity 139 to the outlet 24.

[0306] However, a majority (more than 50%) or even the entire volume of cavity 139 is a dead volume, that is to say, fluid can flow from reservoir 6 to outlet 24 without disturbing or creating fluid movement in cavity 139.

[0307] It is also noted that the internal volume of cavity 139 is greater than the maximum volume of fluid exiting through outlet 24 when the piston 5 enters its housing 11.

[0308] THE FIGURES 19 to 22 illustrate another embodiment of a 1900 device for distributing a fluid. Only the differences with the 1700 device will be described.

[0309] The device 1900 includes the distribution head 10 extending longitudinally over a certain length in a longitudinal direction connecting the distribution orifice 22 to the outlet 24.

[0310] The dispensing head 10 is substantially (within + / - 20 mm) in line with the reservoir (at the end of the reservoir), and the dispensing direction is substantially opposite to the elongation of the reservoir by + / - 20 degrees. The device 1900 is arranged to operate in all positions, including with the head facing upwards or downwards relative to the Earth's gravitational force.

[0311] The distribution head 10 is a straight piece extending longitudinally along the longitudinal direction.

[0312] The distribution head 10 includes the distribution channel 20. The distribution channel is a cylinder extending longitudinally along the entire length of the distribution head 10 and following the same longitudinal direction as the distribution head 10.

[0313] The distribution head 10 is equipped with a collar 45. The collar 45 is arranged to fix the reservoir 6 in the bottom wall 21.

[0314] The axis of the distribution channel 20 is centered on the central axis of the distribution head 10, i.e. that the channel 20 and the head 10 are coaxial.

[0315] On the FIGURES 19 And 22 The 1900 device includes the reservoir 6 comprising a deformable envelope 56. The deformable envelope 56 of the reservoir 6 is arranged to delimit the pocket 2.

[0316] The device 1900 includes a distribution orifice 22 connecting the pouch 2, in particular the inner pouch 21, to the distribution channel 20.

[0317] The braking means 15 are integral with the housing 9 and preferably include at least one tab 17 inclined outwards from the piston 5.

[0318] The connecting orifice 13 includes the hole 23 located in the housing 9 of the piston 5.

[0319] The connecting port 13 is arranged to to close during a movement of piston 5 reducing the internal volume of pocket 2, to open during a movement of piston 5 increasing the internal volume of pocket 2.

[0320] The device 1900 further includes the distribution channel 20 arranged to conduct the fluid from the inner pocket 21 to the outlet 24.

[0321] The 1900 device includes the distribution valve 28 located in the distribution channel 20 and arranged to conduct the fluid from the inner pocket 21 to the outlet 24.

[0322] The 1900 system also includes: the distribution valve 28, a mixer 25 arranged to receive different separate fluid streams (from the bag 2) and mix them in the form of a spray at the outlet 24.

[0323] The flows can originate from the same fluid and / or from distinct fluids.

[0324] One end or part (more precisely part 28 3 ) of the distribution valve 28 is integral with a rod 27 arranged to penetrate into the mixer 25 so as to form different channels 59 arranged to conduct the different separate flows of fluid to the mixer 25.

[0325] The distribution valve 28 includes a stiffener 49 arranged to prevent excessive bending or deformation of the valve 28 during its insertion into the channel 20.

[0326] Rod 27 is an element used to make a spray (i.e. vaporizer).

[0327] The mixer 25 comprises three cavities 57 arranged in the distribution channel 20 (valve housing 80 28) to converge at the outlet 24. The outlet 24 is closed by a front face of the stem 27 (forming the cavities 57 of the mixer 25 connected to the channels 59). These cavities 57 are supplied by the three channels 59 formed by the lateral walls of the stem 27 and the triangular hole in the distribution piece 25, spaced apart from one another, and arranged to define the three channels 59. In some variants, there are at least two cavities 57 and at least two channels 59. Blades are located at the bottom of the piece 25 to increase the pressure at the outlet 24 and create a vortex. Thus, these channels 59 are directed towards the same central direction so as to create a vortex. A groove in the inner wall of channel 20, which is in line with channels 59, imparts a rotational movement to the fluid flowing through it.

[0328] The channels 59, and the cavities 57 (located in the extension of the channels 59), are arranged to create an outlet vortex 24 comprising the flows from the pocket 2.

[0329] The movable wall 3 is a deformable wall.

[0330] The movable wall 3 includes the junction wall 7. More precisely, there is continuity of material between the movable wall 3 and the junction wall 7. The movable wall 3 and the junction wall 7 are similar, that is to say, made of the same material.

[0331] Walls 3 and 7, for example, are made of polypropylene.

[0332] The movable wall 3 delimits at least part of the volume of the outer pocket 2. The movable wall 3 forms a dome, that is to say, the movable wall 3 includes a part that is concave in shape relative to the bottom wall 21.

[0333] The inner pocket 21 includes a portion delimited by the bottom wall 21. The bottom wall 21 includes the housing 9 for the piston 5. The housing 9 for the piston 5 is delimited at least in part by the bottom wall 21.

[0334] The outer pouch 22 includes a part delimited by the bottom wall 21. The bottom wall 21 includes the feed port 8 for connecting the pouch 2 to the reservoir 6, more precisely the outer pouch 22 to the reservoir 6.

[0335] The bottom wall 21 preferably includes a plane or substantially plane shape onto which the movable wall 3 is fixed.

[0336] The movable wall 3 is fixed or welded to the bottom wall 21, in particular to a plane of the bottom wall 21.

[0337] The bottom wall 21 is a rigid wall, that is to say, more rigid than the movable wall 3.

[0338] The movable wall 3 is for example a thin wall and the bottom wall 21 is for example a thicker wall than the movable wall 3.

[0339] The movable wall 3 is preferably made of PP with a polymer or plastomer additive (such as Vistamaxx™ < 6202), in order to reduce its hardness so that the hardness of the movable wall 3 is less than 80 Shore D. This avoids excessive thinness and fragility of the movable wall 3.

[0340] The pouch 2, more precisely the bottom wall 21, defines at least one recess 39 arranged to accommodate means 31 for attaching the reservoir 6 to the pouch 2. Thus, the reservoir 6 can be fitted into the bottom wall 21. The reservoir 6 is held in place by clamping with the distribution piece 10. In another embodiment, not shown, the distribution piece 10 includes an external end fitting onto which the reservoir 6 is fitted at a neck. This neck is held in tension by the end fitting; optionally, an external ring can be crimped onto the outside of the neck by sliding along it to improve the seal.

[0341] Pocket 2 also includes a housing 41 in pocket 2 arranged to mount and / or fit the distribution head 10 to pocket 2, more precisely to the bottom wall 21.

[0342] The device 1900 includes the reservoir 6 communicating with the outer pocket 2 2 by the supply port 8, said reservoir 6 comprising an internal volume arranged to contain the fluid, said internal volume being delimited at least in part by the deformable envelope 56.

[0343] The deformable casing 56 of the tank is made of TPO or PE or PP.

[0344] The deformable envelope 56 includes a bearing surface 26 arranged to receive, from outside the device 1900, the bearing pressure 18, external to the device 1900 and orthogonal to the longitudinal direction of the distribution channel 20.

[0345] Thus, at each support pressure 18 greater than the threshold force, the piston 5 or a part of the piston 5, initially contained in the inner volume of the outer pocket 2 2, will move into the housing 9 of the piston 5.

[0346] Thus, the reservoir 6 is arranged to reduce its internal volume after each state of opening of the supply valve 38.

[0347] The reservoir 6, in particular the deformable wall 56 of the reservoir 6, includes the means 31 for fixing the reservoir 6 to the pocket 2, specifically for fixing the reservoir 6 to the bottom wall 21, in particular to the bottom wall 21 comprising a part of the inner pocket 21.

[0348] The means 31 for attaching the pouch 2 to the reservoir 6 are integral with the reservoir 6, in particular with the deformable wall 56 and the retaining surface 33 of the reservoir. The means 31 are thicker than the rest of the deformable wall 56 of the reservoir 6.

[0349] These means 31 for fixing are a rigid part of the deformable wall 56, that is to say more rigid than the other parts of the deformable wall 56 of the tank 6..

[0350] The retaining surface 33 is flat and is a rigid part of the deformable wall 56, i.e. more rigid than the other parts of the deformable wall 56 of the tank 6.

[0351] The means 31 of the deformable wall 56 include at least one wedge edge 31 fitting into the inner pocket 2 1. In the case of the device 1900, the deformable wall includes two wedge edges 31 for fitting the reservoir 6 into the pocket 2, specifically to fix the reservoir 6 to the bottom wall 21, in particular to the bottom wall 21 comprising the inner pocket 2 1.

[0352] Thus the collar 45 is arranged to, by applying mounting pressure (not illustrated) on the retaining surface 53 of the reservoir 6, fit and / or fix the corner edges 31 of the reservoir 6 into the pocket 2.

[0353] The 1900 device can be a single-material refill, typically from the same family as polyolefin compounds.

[0354] There FIGURE 20 represents an exploded view of the 1900 device not yet including reservoir 6.

[0355] The outer pocket 22 includes means for fixing the movable wall 3 to the bottom wall 21. The volumes of the outer pocket 22 and the inner pocket 21 are delimited when the movable wall 3 is fixed to the bottom wall 21.

[0356] The movable wall 3 includes at least one pin 35, four on the device 1900, for precisely positioning and fixing the movable wall 3 to the bottom wall 21. The bottom wall includes at least one hole 37, four in total. FIGURE 20 arranged to accommodate at least one pawn 35 of the movable wall 3.

[0357] In one embodiment of a method for assembling device 1900, the dispensing valve 28 is mounted in the dispensing head 10, specifically in the dispensing channel 20. The dispensing head 10 is then inserted into the housing 41 of the pouch 2 (specifically into the bottom wall 21, which includes a portion of the inner pouch 21). The movable wall 3 is then assembled to the bottom wall 21 of the pouch 2 to form and / or define the inner pouch 21 and outer pouch 22. The movable wall 3 must be fixed to the bottom wall 21.

[0358] In the case of a device 100 process comprising a reservoir 6, the movable wall 3 must be fixed to the bottom wall 21. Thus, the reservoir 6 is pinched between the distribution head 10, at the level of the collar 45, and the bag 2.

[0359] We observe that along the axis of translation of the piston 5 in the housing 9, starting from the wall 3: the housing 9 extends beyond the inner pocket channel 2 1 connecting the orifice 13 to the valve 28, and / or the valve 28 is not located along this axis.

[0360] Note that pocket 21 contains: a first part inside pocket 2 2, and a second part, forming an angle or turn in relation to the first part, and located below pocket 2 2.

[0361] With reference to the figure 21 , valve 28 can be held in channel 10 by a rib 67.

[0362] The movable wall 3 has a technical function as a spring or return means exerting a force bringing the piston 5 back out of the housing 9.

[0363] On the figure 19 , we note that the piston 5 is formed at least in part by at least part of the movable wall 3.

[0364] The piston 5 is in direct contact with the wall forming the bearing surface 26. In an unillustrated variant in which the casing 56 does not surround the pocket 2 but just forms a reservoir outside the pocket 2, the piston 5 is formed at least in part by at least part of the bearing surface 26.

[0365] THE FIGURES 23 to 25 illustrate another embodiment of a 2300 device for distributing a fluid. Only the differences with the 1900 device will be described.

[0366] The distribution head 10 of the device 2300 does not include a collar 45 but retains the same shape and the same direction of elongation.

[0367] Thus, the distribution head 10 is arranged to be fitted, that is to say held fixed, in the housing 41 of the pocket 2.

[0368] The device 2300 further includes a plug 74 arranged to be positioned and / or fitted onto the distribution head 10. When the plug 74 is fixed to the distribution head 10, no fluid can escape from the outlet 24 of the device 2300. The plug 74 is arranged to be airtight when pressed against the outlet 24 for the priming phase during vacuum filling.

[0369] Cap 74 is made of plastic.

[0370] As in the 1900 device, the movable wall 3 includes the junction wall 7. There is continuity of material between the movable wall 3 and the junction wall 7.

[0371] However, the movable wall 3 is not made of the same material as the connecting wall 7.

[0372] The movable partition 3 is made of PP, PE or TPO.

[0373] The junction wall 7 is made of PP, PE or TPO.

[0374] The connecting wall 7 is rigid, that is to say, more rigid than the movable wall 3.

[0375] The movable wall 3 and the deformable wall 56 of the tank 6 are similar, that is to say, made of the same material. There is continuity of material between the movable wall 3 and the deformable wall 56. They are formed from a single piece comprising two welding or fixing zones, a welding or fixing zone 431 for welding or fixing the wall 3 to the wall 21 and a welding or fixing zone 432 for welding or fixing the wall 56 to the wall 21.

[0376] Indeed, the device 2300 includes a plate 43. The plate 43 is substantially flat. The plate 43 includes the movable wall 3, the junction wall with the piston 5, and the deformable wall 56 of the reservoir 6. The plate 43 therefore comprises parts having different rigidities.

[0377] Plate 43 is arranged to be positioned on the bottom wall 21 of pocket 2.

[0378] Plate 43 is arranged to be fixed to the bottom wall 21 of pocket 2, more precisely on an upper face 21 1 of the bottom wall 21.

[0379] The upper face 21 1 of the bottom wall 21 is substantially flat.

[0380] Plate 43 is fitted and / or welded to the bottom wall 21 of pocket 2.

[0381] The volume of the reservoir 6 is contained between the bottom wall 21 of the pocket 2 and the deformable envelope 56.

[0382] The deformable envelope 56 of the reservoir 6 comprises successive radial undulations 56 2 around an axis B.

[0383] Axis B is perpendicular to plane 47 of wall 43 and / or 56.

[0384] The deformable envelope 56 is substantially contained in a plane 47 around which the undulations 56 2 oscillate, the axis B being substantially perpendicular to this plane 47. The plane 47 is substantially parallel to the upper face 21 1 of the bottom wall 21.

[0385] Axis B is substantially perpendicular to the elongation direction of the distribution head 10.

[0386] The 56 2 undulations have an oscillation amplitude, preferably constant.

[0387] The oscillation amplitude of the undulation 56 2 is between the plane 47 and the upper face 21 1 of the bottom wall 21 on which the plate 43 is fixed.

[0388] In one embodiment of a method for assembling device 2300, the dispensing valve 28 is mounted in the dispensing head 10. The dispensing head 10 is then inserted into the housing 41 of the pouch 2 (specifically into the bottom wall 21, which includes a portion of the inner pouch 21). If device 2300 is not in use, the cap 74 is positioned on one face of the dispensing head 10, which includes the outlet 24. The plate 43 is then assembled with the bottom wall 21 on its upper face 211.

[0389] Plate 43 must be fixed to the back wall 21.

[0390] The assembly process for the 2300 device is carried out under vacuum and includes vacuum welding.

[0391] The vacuum assembly process comprises the following successive steps: At least a portion of the reservoir 6 and at least a portion of the pouch 2 are positioned, onto which the dispensing valve 28, the dispensing head 10, and the cap 74 are assembled. The future internal volume of the reservoir 6 (and preferably the future internal volume of the pouch 2) is filled with the fluid to be dispensed. The reservoir 6 (with the wall 56) and the pouch (with the wall 3) are then closed. The device according to the invention is placed in a cavity 61. The air is evacuated from the cavity 61 to achieve a pressure of less than 1 bar. The plate 43 is brought closer to the upper face 211 of the bottom wall 21 of the pouch 2, preferably by reducing the volume of the cavity 61 (preferably achieved by compressing a bellows 63). Finally, the plate 43 is welded (preferably by ultrasonic welding means 51, 53) under vacuum to the upper face 211 of the wall. from the bottom 21 of pocket 2,while continuing to bring the plate 43 closer to the upper face 21 of the bottom wall 21, preferably by reducing the volume of the cavity 61 (preferably obtained by compressing a bellows 63, typically by 0.3 to 0.6 mm).

[0392] The vacuum assembly process then includes an overpressure of the cavity 61 comprising the assembled device 2300 greater than 1 bar.

[0393] The vacuum assembly process for device 2300 is carried out using a vacuum assembly device 2500, illustrated in FIGURE 25 .

[0394] The 2500 vacuum mounting device includes a sonotron 51 and a booster 53.

[0395] The movable wall 3 has a technical function as a spring or return means exerting a force bringing the piston 5 back out of the housing 9.

[0396] We note that the piston 5 is formed at least in part by at least part of the movable wall 3.

[0397] We note that piston 5 is formed at least in part by at least part of the bearing surface.

[0398] In one variant, the device 2300 is placed in a housing like a refill. In this variant, the wall 3 is placed in contact with a button or a wall of the housing forming the bearing surface 26. This button is guided by guiding means of the device so as to press on the movable surface 3 by being guided along a translational movement parallel to the direction of elongation of the piston 5.

[0399] THE FIGURES 26 to 27 illustrate a seventh embodiment of a 3000 device for distributing a fluid. Only the differences with the device of the figure 17 will be described.

[0400] The 3000 fluid distribution device includes: the pocket 2 comprising an inner pocket 21 and an outer pocket 22, said inner pocket 21 being located at least partly in the outer pocket 22, the inner pocket 21 having an internal volume arranged to contain the fluid, the outer pocket 22 having an internal volume arranged not to contain the fluid, said internal volume of the outer pocket 22 being delimited at least partly by a movable wall 3 (which is preferably a wall integral with a cap 305 with continuity of material, more precisely a thin wall (at least 2 times thinner than the wall thickness of the head 10)), said movable wall 3 being arranged to, under the exercise of a support pressure 18, decrease the internal volume of the inner pocket 21 (and the internal volume of the outer pocket 22) by deforming and / or moving, an outlet 24 arranged to distribute the fluid.

[0401] The internal volume of the inner pocket 2 1 is delimited at least in part by: a piston 5 attached to a junction wall 7 delimiting at least part of the internal volume of the outer pocket 2 2 , a housing 9 for the piston 5 arranged to receive the piston 5 and guide it during an axial movement 11 of said piston 5 in the housing.

[0402] The internal volume of the inner pocket 2 1 is the internal volume of the housing 9.

[0403] The device 3000 is arranged to guide the fluid along a circuit comprising a path, passing directly from the reservoir 6 and / or a head cavity 306 to the inside of the inner pocket 21, without passing through the inside of the outer pocket 22, (the connecting orifice 13 linking the inner volume of the outer pocket 22 to the inside of the inner pocket 21 and / or the piston 5 not being present in this embodiment).

[0404] The head cavity 306 is a volume in the head 10 preferably comprising the product and is oriented towards the reservoir 6.

[0405] The head cavity 306 is arranged so as not to undergo fluid compression.

[0406] The head cavity 306 is located outside the pocket 2 1.

[0407] In the case of the figure 26 , the head cavity 306 corresponds to the internal volume of the piston 5.

[0408] The volume of the head cavity 306 is delimited by a flat surface which would pass at the level of the wall 7.

[0409] The device 3000 also includes a feed port 8 connecting the internal volume of the piston 5 and / or the reservoir 6 to the internal volume of the inner pocket 2 1 and located at one end of the piston 5 which penetrates the housing 9.

[0410] The internal volume of piston 5 is part of reservoir 6.

[0411] With reference to Figures 26 and 27, the expression "volume of pocket 2" means the internal volume of the inner pocket 2 1 without the internal volume of the outer pocket 2 2.

[0412] The 3000 device is arranged to operate in all positions of the head 10, including head up or head down relative to Earth's gravitational force, and includes means for returning the piston 5 or the housing 9 (unlike in head-down distributor devices / cartridges, the return means are external to the cartridges).

[0413] The device 3000 further includes braking means 15 arranged to block the axial movement 11 of the piston 5 in the housing 9 when the movable wall 3 is subjected to a support pressure 18 (previously called external force 18) less than a threshold force.

[0414] Braking means 15 typically include: a lug or tab located on the outside of the piston 5 and / or the inside of the housing 9, this lug or tab being arranged to rub or be blocked by a surface respectively on the outside of the housing 9 and / or the inside of the piston 5, and / or a lug or tab located on the outside of the housing 9 and / or the inside of a wall 303 arranged around the housing 9, this lug or tab being arranged to rub or be blocked by a surface respectively inside of the wall 303 and / or outside of the housing 9. These embodiments are preferred because they act on the face opposite to the sealing face between the piston 5 and the housing 9 so as not to damage this seal.

[0415] Piston 5 and housing 9 are therefore arranged to allow three phases of movement of piston 5 within housing 9 during an application of force 18 (this is referred to as a relative movement of piston 5 with respect to the housing; in practice on the figure 26the housing moves (with the head 10) around the piston 5 while the piston 5 is stationary): 1) a blocking phase in which the piston 5 does not move beyond the means 15 as long as the force 18 is less than the threshold force, then a crossing of the means 15 as soon as the force 18 is greater than this threshold force; 2) a free movement of the piston 5 in the housing 9 once the piston 5 has passed the means 15, typically by a translation of the piston 5 of at least 0.5 mm or even 1 mm in its housing 9, allowing an impulse or acceleration to be given to the threshold force (kinetic energy); and 3) a compression phase, including an increase in pressure in the pocket 2.

[0416] Cavity 306 remains completely still.

[0417] The most important are phases 1 and 3, phase 2 is optional.

[0418] In certain configurations, phase 1 can be recovered by the friction forces of the piston in the housing (dynamic friction force lower than static friction).

[0419] The axial movement 11 of the piston 5 is along the central axis of the piston 5.

[0420] The device 3000 includes a support surface 26, also called contact surface 26, arranged to, under the exercise of the support pressure 18 and via the distribution head 10, decrease the internal volume of the inner pocket 2 1 (and outer 2 2 ) by deforming and displacing the movable wall 3.

[0421] The distribution head 10 is arranged to move towards the reservoir 6 so that when it moves towards or approaches the reservoir 6 in a direction of movement, the fluid exits laterally from the head 10, that is to say, it exits through the outlet 24 in an outlet direction perpendicular or oblique to that direction of movement.

[0422] The movable wall 3 has a technical function as a spring or return means, exerting a force that pulls the piston 5 out of the housing 9. The head 10 includes means for returning the piston or housing without a metallic spring, preferably made of polyolefin, more specifically polypropylene (PP) (single material or same family). In another embodiment, not shown, to increase the return force of the movable wall 3, the pocket 2 may include a spring or an elastic element, preferably around the piston 5 and / or the housing 9.

[0423] The bearing surface 26 is integral with the distribution head 10, and preferably includes at least a part of the distribution head 10.

[0424] It is noted that, in planes perpendicular to the direction of axial movement 11 of the piston 5 relative to the housing 9, the inner pocket 21 has a cross-section smaller than the cross-section of the outer pocket 22 and / or the area of ​​the support surface 26 arranged to receive the support pressure 18 from outside the device and / or a cross-section of the reservoir 6. A reduction in the cross-section of the inner pocket 21 has the advantage of increasing the fluid pressure, which is particularly advantageous in the case of a spray; in the present embodiment, preferably, there is a reduction of at least 2 times the cross-section or area of ​​the pocket 21 compared to the pocket 22 and / or the surface 26 and / or the reservoir 6.

[0425] The 3000 device includes output 24.

[0426] Exit 24 leads to the outside of device 3000.

[0427] Output 24 is located on distribution head 10.

[0428] The outlet 24 is arranged to distribute fluid in a direction substantially perpendicular to a direction 11 of a movement of the distribution head 10.

[0429] The distribution head 10 is arranged to follow a translational movement.

[0430] The outlet 24 is arranged to distribute fluid in a direction substantially parallel to an elongation axis of the distribution channel 20 (lateral outlet to the head 10).

[0431] The inner pocket 2 1 is located under an outer surface of the device at less than 10mm, preferably less than 5mm, from this outer surface.

[0432] There is no intermediate rod between the bearing surface and pocket 2 1 allowing its volume to be modified (as with all embodiments of the figures 17 to 27 Besides).

[0433] The application of a support pressure 18 allows a lateral exit of the product through the outlet and a movement of the movable wall 3 towards the tank 6 or next to the tank 6.

[0434] The 3000 device includes a distribution orifice 22 connecting the bag 21 to the distribution channel 20.

[0435] The distribution valve 28 is inside the distribution channel 20 of the device 3000.

[0436] The distribution channel 20 of the device 3000 includes an internal volume arranged to include (or accommodate) the distribution valve 28. Thus only the distribution valve 28 is included in the distribution channel 20.

[0437] The device 3000 includes the distribution valve 28 located in the distribution channel 20, which, in its open state, allows fluid to flow from the interior of the inner pouch 21 to the outlet 24 via the distribution orifice 22 and the distribution channel 20 (specifically through the housing 80), and, in its closed state, prevents fluid from flowing from the interior of the inner pouch 21 to the outlet 24 via the distribution orifice 22 and the distribution channel 20 (specifically through the housing 80). The valve 28 is not aligned with the axis of the device.

[0438] The dispensing head 10 includes a spray comprising a mixer 25 as previously described.

[0439] The distribution head 10 is located around and outside the pocket 2 1.

[0440] The distribution head 10 is arranged so that, by exerting a pressure 18 on the bearing surface 26, it moves at least along the translational motion. The translational motion of the distribution head 10 is in the same direction and sense as the axial motion 11 of the housing 9 around the piston 5.

[0441] Part of the distribution head 10 is arranged, under the exercise of the support pressure 18, to slide at least in part along an outer wall 302 of the junction wall 7 or of the bottom wall 21 more precisely of the outer pocket 2 2 so as to move and / or deform the movable wall 3 of the outer pocket 2 2.

[0442] The support surface 26 is arranged to, under the exercise of pressure, decrease the internal volume of the inner pocket 2 1 (and outer 2 2 ) by deforming the movable wall 3, more precisely by crushing it towards the junction wall 7 towards the reservoir 6.

[0443] The deformable movable wall 3 has shape memory. When this wall 3 is not subjected to any external stress, it returns to or remains in the shape illustrated in FIGURE 26 , which maximizes the volume of the inner pocket 2 1 and outer pocket 2 2.

[0444] The bearing surface 26, accessible from outside the device 3000 by a user's hand, has a minimum surface area of ​​10 mm²

[0445] The housing 9 of the piston 5 is delimited at least in part by the bottom wall 21. A part of the bottom wall 21, that is to say the part of the bottom wall 21 in contact with the distribution channel 20, is integral with the housing 9 of the piston 5.

[0446] The bottom wall 21 delimits at least in part the volume of the inner pocket 21 but not the outer one 22.

[0447] The junction wall 7 may or may not delimit at least partially the piston 5.

[0448] The bottom wall 21 delimits at least in part the housing 9 of the piston 5.

[0449] In the specific case of device 3000 illustrated in figure 26 The braking means 15 of the piston 5 and preferably include at least one tab 303 of the wall 7 directed towards the walls of the housing 9, preferably the outer edge of the walls forming the housing 9. However, the tab may be in the cap 305 on wall 7 or 21. The tab is oriented substantially along the axis of the piston and opposes the relative movement of the piston 5 in the housing 9; it may deform transversely.

[0450] In device 3000, the movable wall 3 is separated from the junction wall 7. The junction wall 7 is arranged to delimit the internal volume of the pouch 2 and the internal volume of the reservoir shell 6.

[0451] The junction wall 7 has a substantially flat shape. In the case of device 3000, the junction wall 7 is rigid, that is to say, more rigid than the deformable wall 3 of the pocket 2.

[0452] The movable wall 3 is located between the bottom wall 21 and the junction wall 7.

[0453] The connecting wall 7 has the same rigidity as the bottom wall 21.

[0454] The connecting wall 7 is fixed to the movable wall 3.

[0455] The movable wall 3 is fixed to the bottom wall 21.

[0456] The deformable wall 3 is flexible.

[0457] The movable wall 3 is typically made of PP that is thinner than the rest.

[0458] The piston 5 is fixed to the junction wall 7 by welding and / or molding, by fitting or preferably are a single piece.

[0459] Piston 5 is integral with the flat part of the junction wall 7.

[0460] The junction wall 7 is made of PP.

[0461] The piston 5 is made of the same material as the junction wall 7. On the 3000 device, the piston 5 and the junction wall 7 form a single piece.

[0462] Thus, piston 5 is positioned between the flat part of the junction wall 7 and the housing 9 for piston 5.

[0463] The housing 9 for piston 5 is positioned between piston 5 and the distribution channel 20. This channel 20 is optional, particularly if a flat or sufficiently small distribution valve is used, for example, of the "nipple" type.

[0464] Piston 5 is hollow and cylindrical.

[0465] The outer diameter of the piston 5 includes an increase in its diameter at the end of the piston 5 that meets the housing 9 of the piston 5. This arrangement allows for a tight, linear annular contact during compression phases, i.e., when the distribution head 10 is moving in a translational fashion, reducing the volume of the pocket 2. This allows, among other things, for increased sealing performance of the device 3000. A small rotational movement (for example, of the ball joint type) is optionally complementary to this translational movement.

[0466] The device 3000 further includes the supply port 8 connecting the inside of the piston 5 and / or the reservoir 6 to the internal volume of the inner pocket 2 1 without passing through the outer pocket 2 2.

[0467] Device 3000 includes reservoir 6. Reservoir 6 does not communicate with the outer pouch 2 through the feed port 8 or any other port. Reservoir 6 includes an internal volume arranged to contain the fluid.

[0468] The 3000 device is arranged to guide the fluid along the path described previously: passing directly from the reservoir 6 and / or the head cavity 306 into the inner pouch 21, without passing through the inner pouch 22, at each increase in the volume of the inner pouch 21, i.e., at each upward movement of the head 10, i.e., at each exit of the piston towards the outside of the housing 9, then passing through the inside of the inner pouch 21 towards the orifice 22, then the channel 20, then the outlet 24, at each pressure 18 on the movable wall 3 greater than the threshold force, and / or, at each decrease in the inner volume of the inner pouch 21 (and of the outer pouch 22), i.e., each movement of the piston 5 towards the inside of the housing 9. The movement of the piston 5 in the housing 9 causes a compression of the product present in the volume of the pouch 21.

[0469] A supply valve 38 is located in the orifice 8.

[0470] The valve 38 typically includes a diaphragm pressed against the piston 5 on the side of the housing 9. The valve 38 is not mechanically linked to the head 10. The valve is mounted laterally, not in line with the head.

[0471] Valve 38, in an open state (this open state being achieved in particular during an increase in the internal volume of the bag 2 1 ), allows the passage of the fluid contained in the reservoir 6 and / or the inside of the piston to the bag 2 1 , and, in a closed state (this closed state being achieved in particular during a decrease in the internal volume of the bag 2 1 ), does not allow it.

[0472] The supply valve 38 closes after (sufficient) pressure on the movable wall 3, thus forming the supply valve of the inner pocket 2 1.

[0473] Valve 38 is designed to: close during a movement of piston 5 reducing the internal volume of pocket 2 1, open during a movement of piston 5 increasing the internal volume of pocket 2 1.

[0474] The 3000 device also includes a ring 74 arranged to position itself and / or fit onto the distribution head 10.

[0475] The wall 7 includes or is integral with means 304 (including the wall 302) arranged to guide the movement of the head 10 and located inside the head 10. This allows the height of the device 3000 to be reduced.

[0476] As illustrated in figure 27 The flexible reservoir is clipped in place with a rigid ring, which may or may not be attached to the reservoir. A lip on the wall 7 allows the ring 74 to be fitted into place.

[0477] Pocket 2 is located: directly under a bearing surface 26 arranged to receive the bearing pressure 18 from outside the device, or directly under an assembly consisting of a bearing surface 26 arranged to receive the bearing pressure 18 from outside the device and a channel including a valve.

[0478] In this embodiment, the device includes non-metallic return means 307 arranged to raise and / or remove the piston 5 from its housing 9.

[0479] The area S2 of an internal section of the housing 9 is divided at least by two with respect to the area S1 of a bearing surface 26 arranged to receive the bearing pressure 18 from outside the device.

[0480] For a spray, between 50 and 100 microliters are expelled.

[0481] The internal volume (V1) of piston 5 is greater than 40 microlitres.

[0482] The sum of the internal volume (V1) of piston 5 and the internal volume (V2) of housing 9 is greater than 80 microlitres.

[0483] A 180 crimping ring allows the tank to be crimped onto the bottom wall.

[0484] It is noted that this embodiment includes cavity 306.

[0485] This cavity 306 corresponds to the internal volume of piston 5.

[0486] This cavity 306 is not closed but the fluid contained in the reservoir 6 can flow from the reservoir 6 to the cavity 306, and / or from the cavity 306 to the outlet 24.

[0487] However, it is noted that the majority (more than 50%) or even preferably the entire volume of cavity 306 is not a dead volume, that is to say that fluid circulating from reservoir 6 to outlet 24 disturbs and necessarily creates a movement of the fluid in cavity 306.

[0488] It is also noted that the internal volume of cavity 306 is greater than the maximum volume of fluid exiting through outlet 24 when the piston 5 enters its housing 11.

[0489] The movable wall 3 has a technical function as a spring or return means exerting a force bringing the piston 5 back out of the housing 9.

[0490] On the figure 26 , we note that housing 9 is formed at least in part by at least part of the movable wall 3.

[0491] Housing 9 is in direct contact with the wall forming the support surface 26.

[0492] Housing 9 is formed in the same room as the support surface 26 and / or housing 9 is formed at least in part by at least part of the support surface 26.

[0493] Preferably, housing unit 80 is formed in two stages: In the first stage, the channel 20 is formed by molding, leaving an opening for the mold spindle used for this molding, this opening being typically located in the extension of the channel 20 opposite the outlet 24, then in the second stage, at least part of this opening is closed (by injection of flexible or rigid material), the valve 28 being preferably inserted into the housing 80 through this opening.

[0494] THE FIGURES 28 to 29 illustrate an eighth embodiment of a 4000 device for distributing a fluid. Only the differences with the 3000 device of the figure 27 will be described.

[0495] The 4000 fluid distribution device includes: an outlet 24, a pouch 2 having an internal volume to contain a fluid, the internal volume being delimited at least in part by a movable wall 4, a reservoir 6 arranged to contain the fluid, a pouch stopper 40.

[0496] The pouch cap 40 includes a supply valve 38 which, in its open state, allows fluid to flow from the reservoir 6 into the inner volume of the pouch 2 and, in its closed state, does not, and / or a dispensing valve 28 which, in its open state, allows fluid to flow from the inner volume of the pouch 2 to the outlet 24 and, in its closed state, does not. The device 4000 includes the supply valve 38 and the dispensing valve 28.

[0497] The feed valve 38 of the device 4000 allows, in its open state, the passage of fluid from the reservoir 6 to the inner volume of the bag 2, and in its closed state, prevents it. The feed valve 38 is located in the bag cap 40 so that, in its open state, it opens the feed orifice 8, and in its closed state, it closes the feed orifice 8.

[0498] In the case shown, the pocket cap 40 includes the supply valve 38 and the dispensing valve 28.

[0499] The supply valve 38 and the supply valve 28 are integral and form a single piece. The distribution valve portion 38 is positioned on the supply port 8, and the distribution valve portion 28 blocks the flow of fluid towards the outlet 24 in a distribution channel 20 positioned in the pocket stopper 40.

[0500] The distribution valve 38 and the supply valve 28 are positioned in a housing 130 located in the pocket cap 40.

[0501] The housing 130 of the pocket cap 40 is arranged to accommodate the supply valve 38 and the distribution valve 28. The housing 130 is connected to the distribution channel 20.

[0502] The 4000 system also includes: a cavity 122, a reservoir orifice 124 joining the reservoir 6 and the cavity 122.

[0503] The pocket stopper 40 is arranged to be mounted by insertion into the cavity 122 of the device 4000 so as to be mounted by extending: from reservoir 6 to outlet 24, crossing pocket 2 at least partially while passing through movable wall 4, or running alongside pocket 2 at least partially. (in the particular case of the figure 28 or 29 , it is noted that the pocket stopper 40 is arranged to be mounted by insertion into the cavity 122 of the device 4000 so as to be mounted by extending along the pocket 2 along its entire length)

[0504] In the case of device 4000, the pocket stopper 40 is mounted by extending along pocket 2 at least partially.

[0505] Device 4000 includes an inlet orifice 120 arranged for inserting the pocket stopper 40 into the device from outside the device 4000 and opening into the cavity 122.

[0506] The internal volume of pocket 2 includes at least a part (i.e. is partly or totally) outside of cavity 122.

[0507] Cavity 122 is entirely outside of tank 6.

[0508] The pouch stopper 40 includes an internal volume, called the head reservoir 126, arranged to open on one side into the reservoir orifice 124 and on the other side into a feed orifice 8 connecting the head reservoir 126 to the internal volume of the pouch 2.

[0509] Cavity 122 comprises an internal volume distinct from the internal volume of pocket 2.

[0510] The head reservoir 126 is located in the cavity 122. The head reservoir 126 includes a circular end giving to the side of the reservoir 6.

[0511] The movable wall 4 is fixed to at least one outer wall of the cavity 122 (and delimiting the cavity). Thus, a part of the internal volume of the pocket 2, with the exception of the internal volume delimited by the deformable wall 4, is located in the cavity 122.

[0512] The internal volume of the head reservoir 126 is at least 1cm 3<, or even at least 3 cm 3< or even at least 5 cm 3< and / or includes air or fluid to be distributed.

[0513] The pocket stopper 40 is mounted in the cavity 122 so that a wall of the pocket stopper, inserted into the reservoir orifice 124 and delimiting at least in part the head reservoir 126 forms, at the end of screwing, a first watertight junction 148 between the internal volume of the pocket 2 and the reservoir 6.

[0514] The first watertight joint 148 is arranged so that, upon completion of tightening, it is watertight. The same applies to all other joints within the device. The seal 149A comprises a flexible material under axial compression. The seal 149B is a skirt with a radial component larger than its axial component.

[0515] The first watertight joint 148 is in the form of a collar and is positioned on a wall delimiting at least part of the tank 6. The first watertight joint 148 is in particular located on part of the tank 6.

[0516] The sealing of the first sealed joint 148 is achieved by radial pressure (i.e. having a larger radial component than in other directions) in particular by fitting and / or screwing one end of the head cap 126 into one end of the collar-shaped reservoir 6 148.

[0517] When the pocket stopper 40 is mounted in the cavity 122, the head reservoir 126 does not extend over the entire volume of the cavity 122.

[0518] To fill the device, the pouch cap is removed, the reservoir is filled, then at least part of cavity 122 and / or pouch 2 is filled with the product to be dispensed, then one end of cap 40 is inserted into cavity 122, the product will then rise into cap 40 and / or pouch 2, air escapes through orifice 120. The air trapped in the head reservoir can escape through vent 146. The cap is screwed on tightly using sealing elements 149A and / or 149B.

[0519] The pocket stopper 40 includes a vent 146.

[0520] Vent 146 is typically a hole that allows air contained in cavity 122 and / or reservoir 6 to escape when the pocket stopper 40 is inserted into cavity 122. Vent 146 helps to avoid the effect of air overpressure and to avoid keeping air in the device.

[0521] Thus, when the pocket stopper 40 is inserted into the cavity 122, the air contained in the cavity 122 escapes through the vent 146. At the end of screwing the stopper 40, the vent 146 is blocked by an internal wall of the cavity 122.

[0522] The head cap 40 includes a second part 128, separate from the head reservoir 126 and arranged to conduct the fluid from the inner volume of the pocket 2 towards the outlet 24.

[0523] A distribution channel 20 is positioned in the second part 128. The distribution channel is included in the housing 130 of the pocket stopper 40.

[0524] The second part 128 also includes the distribution valve 28, positioned in the distribution channel 20, which in an open state allows fluid to pass from the inner volume of the bag 2 to the outlet 24 and in a closed state does not allow it.

[0525] The outlet 24 is positioned at the level of the second part 128 of the pocket cap 40 and more precisely on an outer wall of the second part 128.

[0526] Thus, the 4000 device is arranged to guide the fluid along a circuit comprising: a first path 141, passing from the reservoir 6 to the head reservoir 126 through the reservoir orifice 124, then a second path 142 passing from the head reservoir 126 to the inner volume of the bag 2 via the feed orifice 8, then a third path 143 connecting the inner volume of the bag 2 to the outlet 24 via the second part 128 of the bag cap 40.

[0527] The device 4000 is arranged to guide the fluid along the first and second paths, after each end of support pressure 18 on the movable wall 4 of the bag and / or at each increase in the internal volume of the bag 2.

[0528] The device 4000 is arranged to guide the fluid along the third path, at each pressure 18 on the movable wall of the bag 2 and / or at each decrease in the internal volume of the bag 2, said supply orifice 8 being closed by the supply valve 38.

[0529] The support pressure is typically that provided by a user pressing with one of their fingers (typically on wall 4), possibly via a lever or button.

[0530] The supply valve 38 opens with each pressure applied to the movable wall 4.

[0531] Opening the supply valve 38 thus allows the fluid to pass along the second path.

[0532] The distribution valve 28 opens after each pressure applied, for example when a user removes their finger from the movable wall 4.

[0533] The opening of the distribution valve 28 thus allows the fluid to pass along the third path.

[0534] The pocket stopper 40 includes fastening means 132 arranged to fix the pocket stopper 40 to walls delimiting the cavity 122 by screwing.

[0535] The fastening means 132 include an anti-unlocking system 132 of the pocket stopper 40 to the cavity 122 arranged to prevent loosening of the pocket stopper 40. The anti-unlocking system 132 is, for example, a system 132 of inclined teeth which allows rotation of the stopper in one direction to screw it on but not in the other direction to unscrew it.

[0536] The inclined teeth are arranged around the entire perimeter of the circular end of the head of the reservoir 126 giving to the reservoir 6. In a variant (not illustrated) of the device 4000, teeth are inserted into hollows during tightening and which after tightening are locked in the hollows, thus preventing the reservoir of heads 126 from loosening in the cavity 122.

[0537] The reservoir 6, the cavity 122 and the pouch 2, with the exception of the movable wall 4 of the pouch 2, are joined together to form a single piece.

[0538] The movable wall 4 of the pocket 2 is assembled by welding to the single piece formed by the cavity 122 and the reservoir 6.

[0539] The movable wall 4 of the pouch is flexible, that is to say less rigid than the rest of the pouch 2.

[0540] The movable wall 4 is typically made of PP, PE or TPO and is thinner than the thickness of the cavity 122 or the reservoir 6.

[0541] The movable wall 4 of pocket 2 is convex, meaning it has a curve. For example, the pocket is concave (in the direction of cavity 122 towards pocket 2). In an unillustrated variant, pocket 2, specifically the movable wall 4, can be of a different shape, for example, elliptical, rectangular, square, spherical, etc.

[0542] Reservoir 6 and cavity 122 form a single piece.

[0543] The reservoir 6 and the cavity 122 are made by polymer injection and / or blow molding of PP, PE or TPO. The reservoir 6 is a cylindrical chamber equipped with a piston; this piston is preferably made of the same material as the walls of the reservoir, preferably polyolefin, and preferably comprises a single annular band arranged to be compressed against the internal walls of the reservoir.

[0544] The reservoir 6 extends along a longitudinal direction centered on a first elongation axis A.

[0545] The pouch 2 extends along a longitudinal direction centered on a second elongation axis and / or the pouch plug 40, preferably the head reservoir 126, which can extend along a longitudinal direction centered on a third elongation axis C.

[0546] The first elongation axis A is offset relative to the second axis and / or the third axis C. In this way the reservoir 6 and the pocket cap 40, in particular the head reservoir 126, are not centered on the same axis, they are offset.

[0547] The first elongation axis A and / or the second elongation axis and / or the third elongation axis C are parallel to each other.

[0548] The pocket stopper 40 extends along an elongation direction 136, coinciding with the longitudinal direction of the pocket stopper 40. The pocket stopper 40 is arranged to be mounted by insertion into the cavity 122 along an insertion direction parallel to its elongation direction 136, the inlet orifice 120 and the reservoir orifice 124 being aligned along the elongation direction 136.

[0549] The plane of the inlet orifice 120 and the plane of the reservoir orifice 124 are parallel to each other and orthogonal to the elongation direction 136 of the pocket stopper 40.

[0550] The pocket cap 40 is inserted into the cavity 122 through the inlet orifice 120. The pocket cap 40 is then screwed onto the reservoir 6 via the anti-unlocking system 132.

[0551] It is noted that, in a variant of device 4000 in which the supply valve is not carried by the plug 40 but directly connects the reservoir 6 to the bag 2, then device 4000 is arranged to guide the fluid along a circuit: not including the first path 141, passing from the reservoir 6 to the head reservoir 126 through the reservoir orifice 124, then If the valve is on the bottom wall there is no first path, it does not pass through the head reservoir, not including the second path 142 passing from the head reservoir 126 to the internal volume of the bag 2 via the supply orifice 8, then includes only a path passing from the reservoir 6 to the bag 2 then the path 143 connecting the internal volume of the bag 2 to the outlet 24 via the part 128 of the bag cap 40.

[0552] There FIGURE 30illustrates a ninth embodiment of a 5000 device for distributing a fluid. Only the differences with the 4000 device of figures 28-29 will be described.

[0553] More specifically, the figure 30 illustrates a variant of the 4000 device shown on the figures 28-29 .

[0554] In device 5000, reservoir 6, cavity 122 and pouch 2 are joined together to form a single piece.

[0555] Reservoir 6, cavity 122 and pouch 2 are made by injection of PP, PE or TPO polymer or by 3D printing (For 3D printing the rigid part can be made in rigid TPU and the flexible (deformable) part in flexible TPU).

[0556] In the case of device 5000, the pocket cap 40 also includes the head reservoir 126 inserted into the cavity 122.

[0557] In device 5000, when the pocket stopper 40 is mounted in the cavity 122, the head reservoir 126 extends over the entire length of the cavity 122 arranged to accommodate the head reservoir 126.

[0558] The pocket stopper 40 also includes the vent 146 arranged to evacuate the air contained in the cavity 122 when the pocket stopper 40 is being inserted into said cavity 122.

[0559] Cavity 122 is distinct from the internal volume of pocket 2.

[0560] When the pouch stopper 40 is inserted into the cavity, the device 5000 includes the first leak-proof junction 148 formed between the pouch volume 2 and the reservoir 6 when the pouch stopper 40 is fixed in the cavity 122.

[0561] The first watertight junction 148 is formed when the walls of the cavity 122 exert a transverse or radial force on the walls of the head tank 126 positioned near the tank 6 and inserted into the cavity 122.

[0562] However, this watertight joint 148 is not essential, since there could be a slight play at the level of element 124 and a slight relief on element 150.

[0563] The pocket stopper 40 is mounted in the cavity 122 so that a wall of the pocket stopper 40, inserted into the reservoir orifice 124 and delimiting at least in part the head reservoir 126 forms, at the end of screwing, a second watertight junction 150 between the internal volume of the pocket 2 and the head reservoir 126.

[0564] The second 150 sealed joint is arranged so that at the end of screwing, the second 150 sealed joint is at least 50% sealed to the product.

[0565] In device 5000, vent 146 is arranged to expel the air contained in cavity 122 or head reservoir 126 outside of device 5000 when pocket stopper 40 is being mounted or arranged in cavity 122.

[0566] In a variant (not shown) of device 6000, the reservoir 6 may include at least one flexible partition arranged to fit into the head reservoir 126 as the reservoir 6 is emptied of its fluid, following the same principle as device 700 illustrated in the Figures 10, 11 and 12 .

[0567] There is a seal between the plug 40 and the bottom wall 21.

[0568] THE FIGURES 31 and 32 illustrate a tenth embodiment of a 6000 device for distributing a fluid. Only the differences with the 4000 device of the figures 28-29 will be described.

[0569] In the 6000 device, the reservoir 6, the cavity 122 and the pouch 2 are joined together to form a single piece.

[0570] Reservoir 6, cavity 122 and pocket 2 are made by 3D printing.

[0571] The cavity 122 is provided with deformable walls forming parts 611, 662 and 663 of the reservoir 6 and arranged to laterally increase the capacity of the reservoir 6.

[0572] In the device 6000, the reservoir 6 is divided into several parts 661, 662, 663. This embodiment therefore includes several supply ports 124 (one per part of the reservoir 6) connecting the reservoir 6 to the cavity 122.

[0573] The 6000 device comprises two pockets 211 and 212, diametrically opposed to each other on an external wall of the cavity 122 (or reservoir 6).

[0574] For this reason, the 6000 device includes two feed ports 8, each connecting the reservoir 6 or cavity 122 inside the pouch 2.

[0575] The deformable walls of parts 661, 662 and 663 of reservoir 6 are distinct from pockets 211 and 212. The deformable walls 662, 663 are at least partly positioned between pockets 211 and 211.

[0576] The two pouches 211 and 212 are identical, but in a variant of device 6000 (not illustrated), these two pouches 211 and 212 can have different shapes and therefore different internal volumes. It is also possible that the reservoir 6 is configured to contain two separate fluids and that pouches 211 and 212 are each configured to hold a specific fluid.

[0577] The bag stopper 40 includes two supply valves 38 which, each in an open state permits passage of fluid from the reservoir 6 and / or cavity 122 to the internal volume of the bag respectively 211 or 212 and in a closed state does not permit.

[0578] The 6000 device also includes the distribution valve 28, separate from the two supply valves 38, which in an open state allows fluid to pass from the inner volume of the bag 2 to the outlet 24 and in a closed state does not allow it.

[0579] The fluid therefore passes from the reservoir 126 and / or the cavity 122 to a pocket 2 (211 or 212) and from this pocket 2 to the channel 20 of the pocket stopper 40 before reaching the distribution valve 28. The distribution valve 28 is positioned in the distribution channel 20.

[0580] The first elongation axis A is not offset with respect to the third axis C. In this way the reservoir 6 and the pocket stopper 40 are centered on the same axis, they are coaxial.

[0581] The first elongation axis A and / or the second elongation axis and / or the third elongation axis C are parallel to each other.

[0582] In the specific case of the figure 32 , we note that the pocket stopper 40 is arranged to be mounted by insertion into the cavity 122 of the device 4000 so as to be mounted by extending along only partially the pocket 2.

[0583] There FIGURE 33 illustrates an eleventh embodiment of a 7000 device for distributing a fluid. Only the differences with the 6000 device of the figures 31-32 will be described.

[0584] The pocket stopper 40 of the device 7000, the distribution channel 20 and the supply valves 38 and distribution valve 28.

[0585] The internal volume of pocket 2 is entirely contained within cavity 122.

[0586] Cavity 122 is entirely outside of tank 6.

[0587] In particular, the pocket 2 and the mobile wall 4 of the pocket are positioned in the internal volume of the cavity 122.

[0588] In device 7000 the distribution valve 28 is positioned in the distribution channel 20 of the pocket stopper 40.

[0589] The device 7000 is arranged to guide the fluid from the reservoir 6 to the inner volume of the pouch 2 via the orifice of the reservoir 124 and from the inner volume of the pouch 2 to the distribution channel 20 via a distribution orifice 8 connecting the inner volume of the pouch 2 to the distribution channel 20.

[0590] The movable wall of pocket 2 is convex in shape, that is to say, it includes a curve. For example, the pocket is concave on the inside side of the pocket.

[0591] The pocket cap 40 includes a part 140, different from the head reservoir 126 of the figures 28-29 Indeed, in the case of the 8000 device, the cavity 140 is not arranged to open on one side onto the reservoir orifice 124 and on the other side onto a supply orifice 8 connecting the head reservoir 126 to the internal volume of the pocket 2. The fluid to be distributed passes directly from the reservoir 6 to the internal volume of the pocket 2 via the reservoir orifice 124 or the supply orifice 8 (these two orifices being the same).

[0592] The pouch 2 includes a threaded collar. Part 140 of the pouch cap 40 is inserted into the skirt of the cavity, thus defining the first watertight junction 148 between the internal volume of the pouch 2 and the reservoir 6.

[0593] Plug 40 is arranged to slide into the bottom wall at junction 148.

[0594] The first watertight joint 148 is arranged so that at the end of screwing, the first watertight joint 148 is watertight to the product.

[0595] The device 7000 includes a bearing surface 26 positioned on the pouch stopper 40, also called the contact surface 26, arranged so as, under the application of the pressure 18 and via the pouch stopper 40, to decrease the internal volume of the pouch 2 by deforming and displacing the movable wall 4. When the bearing surface 26 is pressed, the head reservoir slides within the skirt (the pouch is compressed). In a preferred embodiment, the part 140 includes a stopper 145 on the reservoir side; in this case, the internal volume of the part 140 preferably comprises a gas such as air.

[0596] The internal volume of part 140 extends from the reservoir 6 or the cap 145 to the dispensing valve. The volume of part 140 can be at least 1 cm³, or even at least 3 cm³ or at least 5 cm³, and it can contain a gas and / or fluid to be dispensed.

[0597] The cap 40 is arranged to slide in a ring 159 while being guided by this ring 159.

[0598] The movable wall 4 of the bag includes a first flange 158 arranged to be assembled (fitted or screwed or clipped) into the head cap 40, in particular at the head of the bag cap 40. The flange 158 of the cavity 122 includes a wall that is thicker than the wall delimiting the movable wall 4 of the bag 2. The upper end of the flange 158 of the bag 2 forms the inlet orifice 120.

[0599] There FIGURE 34illustrates a twelfth embodiment of a device 8000 for distributing a fluid. Only the differences with the device 7000 of the figure 33 will be described.

[0600] In device 8000, cavity 122 is confused with pocket 2. Thus, the internal volume of pocket 2 is equal to the internal volume of cavity 122.

[0601] The 8000 device includes a pouch housing 160 positioned at least partially within the pouch 2, in which the supply valve 38 and the dispensing valve 28 are located. The housing 160 of the pouch 2 is arranged to accommodate the dispensing valve 38 and the supply valve 28.

[0602] The distribution valve 28 and the supply valve 38 form a single piece.

[0603] The device 8000 is arranged to guide the fluid from the reservoir 6 to the inner volume of the pouch 2, in particular into the inner volume formed by the movable wall 4 of the pouch 2, via the orifice of the reservoir 124 or supply 8 (these two orifices being confused) and from the inner volume of the pouch 2 to the distribution channel 20 via a distribution orifice 8.

[0604] The movable wall 4 of pocket 2 is convex in shape, that is to say, it includes a curve. For example, pocket 2 is concave in shape.

[0605] The pocket stopper 40 is T-shaped, having an upper part 162 (the head 162 of the T) and a lower part 140. The part 140 can be configured to contain a fluid or not. The fluid can be air, a vacuum, or a fluid to be dispensed by the device 8000.

[0606] In the case of the 8000 device, the pouch stopper 40 is inserted into the cavity 122 (the pouch 2) by screwing it in. For this purpose, the cavity 122, and more specifically the movable wall 4 of the pouch, includes a first flange 158 arranged to be assembled (fitted, screwed, or clipped) into the head stopper 40, particularly at the head of the pouch stopper 40. The flange 158 of the cavity 122 has a wall that is thicker than the wall delimiting the movable wall 4 of the pouch 2. The upper end of the flange 158 of the pouch 2 forms the inlet orifice 120.

[0607] Part 140 of the pocket cap 40 is different from the head reservoir 126 of the figures 28-29Part 140 is a cylinder centered on an axis R. Part 140 of the pouch stopper 40 is arranged to be inserted into the cavity 122, in particular into the internal volume of the pouch 2, so that the internal volume of the movable wall 4 and part 140 are centered on a common axis, the axis R. In this way, the internal volume of the movable wall 4 and part 140 are coaxial.

[0608] The pouch 2 includes a second collar. Part 140 of the pouch stopper 40 is inserted into the second collar of the cavity, thus defining the first watertight junction 148 between the internal volume of the pouch 2 and the reservoir 6.

[0609] The first watertight joint 148 is arranged so that at the end of screwing, the first watertight joint 148 is watertight to the product to a level of at least 50%.

[0610] THE FIGURES 35 to 40 illustrate another embodiment of a 3500 device for distributing a fluid. FIGURES 41 to 46illustrate another embodiment of a device 4100 for distributing a fluid. For these two embodiments 3500, 4100, only their differences with the device 7000 of the figure 33 will be described.

[0611] Each embodiment of device 3500, 4100 for distributing a fluid includes: outlet 24, bag 2 having an internal volume to contain a fluid, the internal volume of bag 2 being delimited at least in part by the movable wall 4, reservoir 6 arranged to contain the fluid and comprising two openings, the upper opening 124 oriented towards bag 2 and a lower opening 87, said reservoir 6 being arranged to decrease its internal volume when fluid exits the reservoir, distribution valve 28 which, in an open state, allows passage of fluid from bag 2 to outlet 24, and, in a closed state, does not allow it, supply valve 38 which, in an open state, allows passage of fluid contained in reservoir 6 to bag 2, and which, in a closed state, does not allow it.

[0612] The lower opening 87 is arranged to allow the passage of fluid, preferably the passage of a cannula (or filling tube) carrying the fluid, so as to fill at least part of the reservoir 6 with fluid at least up to the supply valve 38 so that the fluid is in contact with the supply valve 38 and preferably so as to also fill at least part of the internal volume of the bag 2 with fluid.

[0613] The feeding valve is designed to allow the cannula or tube to pass through, for example by bending.

[0614] THE FIGURES 35 to 40 illustrate the implementation of a 3500 device for distributing a fluid. Only its differences with the 7000 device of the figure 33 will be described.

[0615] The reservoir 6 is delimited at least in part by a movable piston 86 arranged to move so as to decrease the internal volume of the reservoir 6 when fluid exits the reservoir 6, this piston 86 being provided with the lower opening 87, the lower opening 87 being closed by a removable plug 89.

[0616] The removable cap 89 is screwed onto the piston 86.

[0617] The piston 86 is located between the reservoir 6 and a bottom wall 91, said bottom wall 91 being provided with means 93 for blocking the rotation of the piston 86 when the plug 89 is screwed onto the piston 86 when the piston 86 is in contact with the bottom wall 91.

[0618] Different variations of this 3500 embodiment can be combined with each other: in the variant illustrated on the figure 36The means 93 typically include, for example, a slot into which part of the piston 86 is inserted, and / or in the variant illustrated on the figure 37 Means 93 typically include, for example, clipping means, and / or in the variant illustrated on the figure 39 The piston 86 is provided with at least one hole 95 arranged to allow the passage of fluid between the reservoir 6 and a sealing zone 97 located between the piston 86 and a wall 99 along which the piston 86 is arranged to move, and / or the piston may have a curved shape (disk, ellipse, or other) or a polygon. In the variant illustrated on the figure 40In a cross-sectional view perpendicular to a direction of movement of the piston 86 along a wall 99, the piston 86 has a polygonal shape comprising several sides connected by angles. The device further comprises a force distribution piece 103 arranged to support the piston 86 against the wall 99 at several (preferably all) sides of the polygon but outside the angles of the polygon. In another embodiment, the distribution piece 103 can be replaced by a variable thickness of the walls of the piston 86.

[0619] THE FIGURES 41 to 46 illustrate another embodiment of a 4100 device for distributing a fluid. Only its differences with the 3500 device of the Figures 35 to 40 will be described.

[0620] Reservoir 6, designed to contain the fluid, is delimited by: a flexible wall 108 comprising the two openings, the upper opening 124 oriented towards the pocket 2 and the lower opening 87, and a rigid wall 91, preferably removable, arranged to block the lower opening 87.

[0621] The area of ​​a section of the upper opening 124 (this section being chosen to minimize the area of ​​the upper opening 124) is at least twice (and even at least four times) smaller than the area of ​​a section of the lower opening 87 (this section being chosen to minimize the area of ​​the lower opening 87).

[0622] The flexible wall 108 is arranged to deform in such a way as to decrease the internal volume of the tank 6 when fluid exits the tank 6.

[0623] The device 4100, more precisely the rigid wall 91, is arranged to maintain fixed the position of the lower opening 87 in the device 4100 relative to the position of the upper opening 124 in the device 4100.

[0624] The flexible wall 108 is attached to the pocket 2 by means of a watertight joint.

[0625] The flexible wall 108 includes a cylinder 81 above the reservoir 6, providing a seal. To achieve a seal, this cylinder 81 is either compressed (as in the case of Figures 42 And 44 ), or it is nested (case of the figure 41 ). It is preferable to have a second cylinder concentric with the first cylinder 81.

[0626] The device 4100 includes internal guidance means 110 for the cap (which is the component forming the internal volume of the pouch 2 and also containing the distribution valve 28). The means 110 are arranged to guide the movement of the cap. The means 110 take the form of a wall 110 emerging from the bottom wall 21.

[0627] The 4100 device includes a recess 111, useful particularly when the reservoir 6 is a replaceable cartridge. This recess 111 allows the reservoir 6 to be held fixed when held by fingers or clips of an external housing, while the cap or head can rotate.

[0628] Different variations of this 4100 embodiment can be combined with each other: The flexible wall 108 is attached to the pocket 2 by means of a watertight joint: ∘ by welding, and / or ∘ by clipping (by a clip 83), and / or by interlocking, as illustrated in the variant of the figure 41and / or by compression of the flexible wall 108 around its upper opening 124 between, on the one hand, a part forming or integral with the pouch 2 and located outside the reservoir 6, and on the other hand, a ring 109 (whose upper edge forms the feed seat 62 as previously described) inserted inside the reservoir 6, as illustrated in the variants of the Figures 42 And 44 , 46 In the variant of the figure 42 , the ring 109 is integral with the rigid wall 91 and the ring 109 and the wall 91 form a single piece with continuity of material, whereas in the variant of Figures 44 And 46 The ring 109 and the wall 91 form two separate parts without continuity of material; and / or the flexible wall 108 and the supply valve 38 are formed in a single part with continuity of material (as illustrated in the figures 41 to 43 ) or in two separate pieces without continuity of material (as illustrated on the figures 44 to 46 ).

[0629] It is noted that in all the embodiments described above, the device is arranged to operate (i.e. to distribute fluid through the outlet via the supply and / or distribution valves) with its distribution head facing upwards (i.e. outlet 24 located above the tank 6) or downwards (i.e. outlet 24 located below the tank 6).

[0630] Of course, the invention is not limited to the examples described and many modifications can be made to these examples, as long as these modifications are covered by the terms of the attached claims.

[0631] For example, in all the embodiments and variants just described: force 18 can be exerted directly by a user or via a button, and / or in the case of a mini reservoir of a piston, the pressure balancing hole is at least 3 mm² in size.

[0632] For example, in all embodiments and variants of figures 17 to 27 : the device may include means for pre-guiding the piston 5 in its housing 9, these pre-guiding means typically including at least one tab 17 and / or at least one wall 65 the wall 3 (or "spring" 3) may be part of the head 10, or may be a part independent of the head 10 such as for example a flexible cylinder arranged to compress.

[0633] In the case of the figure 26 , piston 5 and housing 9 can be swapped. In this case: the piston 5 is integral with the head 10 and the wall 21, and / or the housing 9 is integral with the wall 7, and / or the head cavity 306 is located below the housing 9, outside the piston 5, and / or the junction wall 7 delimits at least in part the housing 9 and / or the head cavity 306, and / or the bottom wall 21 delimits at least in part the piston 5, and / or The translational movement of the distribution head 10 is in the same direction and the same sense as the axial movement 11 of the piston 5 in the housing 9.

Claims

1. Device (1700, 1900, 2300) for dispensing a fluid, comprising: • a pocket (2), comprising an interior pocket (21), said interior pocket having an interior volume arranged to contain the fluid, • a movable wall (3) being arranged to, under the exertion of a pressing pressure (18) on a pressing surface (26), reduce the interior volume of the inner pocket (21), by deforming, • an outlet (24) arranged to dispense the fluid, the internal volume of the inner pocket (21) being delimited at least in part by: • a piston (5) secured to a connecting wall (7) or to a bottom wall (21), • a housing (9) of the piston (5) arranged to accommodate the piston (5) and guide it during an axial movement (11) of said piston (5) in the housing, the piston or the housing being formed at least in part by at least a part of the movable wall, and / or the piston or the housing being in direct contact with a wall forming the bearing surface; or the piston or the housing being formed at least in part by at least a part of the bearing surface, the pocket (2) further comprising an outer pocket (22), said inner pocket (21) being located at least in part in the outer pocket (22) , said inner and outer pockets (21,22), each having an interior volume arranged to contain the fluid, said interior volume of the outer pocket (22) being delimited at least in part by the movable wall (3), said movable wall (3) being arranged to, under the exertion of the bearing pressure (18), reduce the interior volume of the outer pocket (22) by deforming, the device being arranged to guide the fluid according to a circuit comprising: • a first path, passing: from the inside of the outer pocket (22) to the inside of the inner pocket (21) via at least one connecting orifice (13) connecting the inner volume of the outer pocket (22) to the inside of the inner pocket (21), and • a second path, passing from the inside of the inner pocket (21) to the outlet (24)2. Device (1700, 1900, 2300) according to claim 1, characterized in that the junction panel (7) and / or the bottom wall (21) at least partially limit the internal volume of the external pocket (22)3. Device (1700, 1900, 2300) according to claim 1 or 2, characterized in that it comprises braking means (15) arranged to block an axial movement (11) of the piston (5) in the housing (9), thus reducing the internal volume of the internal pocket (21) and of the external pocket (22) when the movable part (3) is subjected to a bearing pressure (18) below a threshold.

4. Device (1700, 1900, 2300) according to the preceding claim, characterized in that: • the braking means (15) are integral with the piston (5) and preferably comprise at least one tab (17) inclined towards the outside of the piston (5), and / or • the braking means (15) are integral with the housing (9) of the piston (5) and preferably comprise at least one inclined tab (17) towards the inside of the housing (9).

5. Device (1700, 1900, 2300), according to any one of the preceding claims, characterized in that it comprises a reservoir (6), communicating with the external pocket (22) by a supply orifice (8), said reservoir (6), comprising an interior volume arranged to contain the fluid product, said interior volume being delimited at least in part by a deformable envelope (56).

6. Device (1700, 1900, 2300), according to any one of the preceding claims, characterized in that the device is arranged to guide the fluid along the second path, at each bearing pressure (18) on the movable wall (3), greater than the threshold force and / or at each reduction in the internal volume of the internal pocket (21) and of the external pocket (22) for which the connecting orifice (13) is closed.

7. Device (1700, 1900, 2300) according to any one of the preceding claims, characterized in that the device is arranged to guide the fluid according to the first phase, after the end of each support pressure (18) greater than the threshold force, and / or at each increase in the internal volume of the internal pocket (21) and of the external pocket (22) for which the connecting orifice (13) is open.

8. Device (1900, 2300), according to any one of the preceding disclosures, characterized in that the connecting orifice (13): • is formed at a junction (19) between an end of the piston (5) and an end of the housing (9) of the piston (5), and / or • comprises a hole (23) located in the housing (9) of the piston (5).

9. Device (1700, 1900, 2300) according to any one of the preceding claims, characterized in that the connecting orifice (13) is arranged to: • close during a movement of the piston (5) reducing the internal volume of the pocket (2), • open during a movement of the piston (5) increasing the internal volume of the pocket (2)10. Device (1700, 1900, 2300), according to any one of the preceding claims, characterized in that it further comprises a distribution channel (20), arranged to conduct the fluid coming from the inner pocket (21) towards the outlet (24).

11. Device (1700, 1900, 2300) according to claim 10, characterized in that the device comprises a distribution valve (28) located in the distribution channel (20) and arranged to conduct the fluid from the inner pocket (21) towards the outlet (24).

12. Device (1700, 1900, 2300), according to any one of the preceding claims, characterized in that it further comprises a mixer (25) arranged to receive different separate flows of fluid and mix them in the form of a spray at the outlet (24).

13. Device (1700) according to any one of the preceding claims, characterized in that the movable wall (3) comprises the junction wall (7).

14. Device (1700) according to any one of claims 1 to 12, characterized in that the movable wall (3) is separated from the junction wall (7).

15. Device (1700, 1900, 2300) according to any one of the preceding claims, characterized in that the pocket (2) is located: • directly under the bearing surface (26) arranged to receive the bearing pressure (18) from the outside of the device, or • directly under an assembly constituted by the bearing surface {26) arranged to receive the bearing pressure (18) from outside the device and a channel comprising a valve.