Fluid Distribution Device

Abstract

The present invention relates to a fluid dispensing device for dispensing a fluid, comprising an orifice (24), a pocket (2) at least partially defined by a movable wall (4) and having an internal volume for containing a fluid, a reservoir (6) for containing a fluid, a pocket plug (40), a cavity (122), and a reservoir opening (124) connecting the reservoir (6) and the cavity (122). The pocket cap is configured to be attached by insertion into the cavity (122) of the device, and extends and attaches: - at least partially through the pocket (2) where it passes through the movable wall (4), or - at least partially along the pocket (2). The device is configured for insertion of the pocket cap (40) into the device from outside the device, and comprises an inlet opening configured to open into the cavity (122).

Description

[Technical Field]

[0001] The present invention relates to a fluid dispensing device for dispensing a fluid. Such devices allow a user to dispense fluids. The field of the invention is more particularly that of dispensing products such as liquids, gels or creams, for example for the pharmaceutical or cosmetic or agri-food industries. [Background technology]

[0002] Fluid dispensing devices are known, for example as disclosed by document WO2015 / 155318. In this field, manufacturers are constantly striving to improve and / or simplify the compactness, use, ergonomics, manufacturing, reloading, priming, sanitation, and / or recyclability of their fluid dispensing devices. The object of the present invention is to solve at least one of these problems. Summary of the Invention [Means for solving the problem]

[0003] According to a first aspect of the present invention, the present invention is able to achieve at least one of the aforementioned objects by providing a device for dispensing fluids, comprising: - a pocket, which has an internal volume configured to contain a fluid, the internal volume being at least partially defined by a deformable wall 4; a reservoir having an inner casing configured to contain a fluid; - a supply opening, which connects the internal volume of the reservoir with the internal volume of the pocket; a dispensing head, which is fixed to the deformable wall of the pocket, the dispensing head being carried by the deformable wall in a plurality of different possible positions relative to the reservoir, the possible positions including at least the following: * Stable position, which means that no external force is exerted on the head, and An inclined position, which is at an angle to said stable position while an external force is exerted on the head so as to deform the deformable wall and reduce the internal volume of the pocket compared to the stable position. The device according to the invention may further comprise: a distribution channel, preferably arranged in the distribution head and configured to direct the fluid in a distribution direction from the interior volume of the pocket towards an orifice, said orifice being configured at one end of the distribution head; - a distribution opening, which connects the inner volume of the pocket to the distribution channel.

[0004] The dispensing head preferably extends longitudinally over a length of at least 10 mm in the longitudinal direction connecting the dispensing opening to one end of the dispensing head and / or in the direction connecting the dispensing opening to the orifice and / or surface as defined below. The dispensing head of a device according to the invention may extend longitudinally over a length of at least 20mm, preferably at least 30mm, ideally at least 40mm.

[0005] The dispensing head of the device according to the invention may be a straight section extending longitudinally along its length. The dispensing head may be longer (along the length) than it is wide (perpendicular to the length).

[0006] Preferably, the dispensing head may be configured to reach a maximum inclination position when the inclination angle is at least 15°, or even 20° (°), preferably at least 30°, or even at least 45°, relative to the stable position for various possible inclination positions excluding its stable position, and the maximum inclination position may be configured to reduce the internal volume of the pocket.

[0007] Preferably, the dispensing head may comprise a contact surface configured to receive an external force 18 from outside the device, preferably perpendicular to the longitudinal direction of the dispensing head in the stable position.

[0008] The contact surface of the device according to the invention is at least 10 mm 2 , preferably at least 30 mm 2 , preferably at least 60 mm 2 , more preferably at least 100 mm 2 may be. The dispensing head may be configured to tilt in opposite directions relative to the contact surface.

[0009] Preferably, in the stable position of the dispensing head, the contact surface 26 is less than 15 mm wide and at least 30 mm 2 , preferably at least 60 mm 2 , preferably at least 100 mm 2 The pockets are angled at an angle of between -45° and 45° (preferably between -30° and 30°, more preferably between -20° and 20°) relative to the direction in which the distribution channel extends from the pocket towards the orifice, i.e. at the junction between the pocket and the distribution channel.

[0010] The dispensing head may be a straight section extending longitudinally along its length. In this case, the dispensing head and the reservoir may extend longitudinally along the longitudinal direction when the head is in its stable position, in other words the dispensing head and the reservoir may extend in the same direction of the device according to the invention.

[0011] Preferably, the dispensing head may comprise a dispensing valve disposed in the dispensing channel which, in an open state, allows passage of fluid from the dispensing channel to the orifice and, in a closed state, does not allow it.

[0012] In this case, the device according to the invention (and in particular the dispensing valve) may be configured to remain in its closed state as long as the tilt angle is less than 5°, preferably less than 2°, relative to the stable position.

[0013] The dispensing head may comprise two separable parts: - an upper part in which the distribution valve is arranged, and - A lower part that is fixed in the pocket and is equipped with an anti-drip device. The drip prevention device is arranged at the connection of these two parts and has a valve body in the distribution channel, which - the two parts are configured to open when assembled to allow fluid to pass through the orifice; and - When the two parts are separated, they are configured to close and prevent fluid from flowing out of the device through the lower part.

[0014] The dispensing valve may comprise a portion configured to maintain the valve body of the anti-drip device in its open state, i.e. in a state allowing fluid to pass towards the orifice when the two parts of the head are assembled. Said portion of the dispensing valve may be one end of the dispensing valve and is preferably triangular or tapered in shape.

[0015] Preferably, the deformable wall may have an asymmetry about an axis, such that the pocket is configured to facilitate tilting of the dispensing head in a preferred tilt direction and / or to reduce the operating force required for dispensing in a certain direction, preferably said preferred direction facing the contact surface and / or orifice.

[0016] The device according to the invention may further comprise means for screwing the pocket onto the reservoir. In another embodiment, the pocket and reservoir of the device according to the invention may be integral with each other so as to form a single part, said part may be obtained by blow molding.

[0017] In other embodiments, the pocket may include an end piece configured to fit over the reservoir. The end of the endpiece may define a dispensing opening. The endpiece may be pressed into the reservoir to secure the pocket to the reservoir.

[0018] In this case, the reservoir may be provided with a sealing skirt arranged at the supply opening, said skirt comprising a lid, preferably made of a single material, configured to stop the flow of fluid contained in the reservoir into the pocket unless the edges of the pocket are pressed into the reservoir, e.g. unless the edges of the pocket are snapped and / or screwed into the reservoir.

[0019] Preferably, the end piece may be configured to pass through the lid. The end piece may be at least 8mm long (preferably longitudinally). The device according to the present invention may comprise a supply valve which is arranged at the supply opening and which, in an open state, allows the passage of fluid contained in the reservoir towards the pocket and, in a closed state, does not allow such passage. In this case, the reservoir may be configured to reduce its internal volume after each opening of the supply valve.

[0020] The reservoir may comprise components comprising: a supply valve housed in a supply valve seat, said supply valve being arranged at the connection between the interior volume of the pocket and the interior volume of the reservoir; and / or a support and / or cap, preferably comprising a lid accommodated in the dispensing valve seat, said support and / or cap being configured at the connection between the inner volume of the pocket and the dispensing channel; and / or - a connecting element, which is an element connecting the supply valve with the support and / or cap and / or dispensing valve, said connecting element being preferably configured to deform or break during deformation of the pocket. This aspect of the invention can be claimed as such independently of the dispensing head and / or its tilt.

[0021] This part allows for the attachment of a supply valve through the pocket. The connecting elements may be flexible or breakable after assembly of the device according to the invention. The dispensing head may include a perforator configured to perforate a lid of a cap received in the dispensing valve seat.

[0022] In one embodiment, the deformable wall of the pocket of the device according to the invention may comprise a bellows, and the device may comprise a locking means configured to limit and / or prevent extension of one of the sides of the bellows during any tilted position of the bellows. The locking means may be and / or comprise a rigid case.

[0023] The dispensing head may include a pusher configured to: - pressing against the retaining surface of the pocket, preferably the retaining surface of the bellows, and - holding said holding surface fixed relative to the dispensing head; The support surface may be flat and / or rigid.

[0024] The locking means may press against the pusher, which may itself press against the retaining surface. The pusher and retaining surface may remain assembled to the housing containing the reservoir by clamping the locking means. The support surface may be rigid.

[0025] The device according to the invention may comprise means for screwing the pocket onto the dispensing head. The deformable wall of the pocket may comprise weakened zones and / or bonding portions which may be configured to allow at least one tilted, but preferably stable, position of the dispensing head (with a preferred angle that determines the amount of fluid leaving the pocket and allows dosing) when no external force is applied to the contact surface.

[0026] The reservoir may comprise a deformable casing that at least partially defines an interior volume of the reservoir, and the deformable casing may comprise a radially continuous corrugation.

[0027] According to a second aspect of the present invention, the present invention is able to achieve at least one of the aforementioned objects by providing a device for dispensing fluids, comprising: a pocket, comprising an inner pocket, said inner pocket having an internal volume configured to contain a fluid; a movable wall, which is preferably configured to reduce the internal volume of the inner pocket by deformation and / or movement under the action of a pressure force applied to the pressure surface; - an orifice, which is configured to dispense a fluid; wherein the interior volume of the inner pocket is defined at least in part by: - a piston, which is integral with the connecting wall or bottom wall; a housing, which is a housing for the piston and is configured to accommodate the piston and to guide said piston during its axial movement within the housing.

[0028] In a second aspect of the present invention, - the piston or housing may be at least partially formed by at least a portion of the movable wall; and / or o The piston or housing may be in direct contact with the wall forming the pressing surface, or o The piston or housing may be at least partially formed by at least a portion of the pressing surface.

[0029] According to a second aspect of the present invention, the present invention is capable of achieving at least one of the aforementioned objects by preferably providing a device for dispensing fluids, comprising: a pocket, comprising an inner pocket and an outer pocket, the inner pocket being at least partially disposed within the outer pocket, the inner pocket and the outer pocket each having an interior volume configured to contain a fluid, the interior volume of the outer pocket being at least partially defined by a movable wall configured to reduce, by deformation and / or movement, the interior volume of the inner pocket and the interior volume of the outer pocket under the action of a pressing force; - an orifice, which is configured to dispense the fluid.

[0030] The interior volume of the inner pocket is preferably defined at least in part by: - a piston, which is integral with a connecting wall that at least partially defines the internal volume of the outer pocket; a housing, which is a housing for the piston and is configured to accommodate the piston and to guide said piston during its axial movement within the housing.

[0031] The device according to the invention is configured to guide a fluid along a path comprising the following routes: - Route 1: o which passes from the inside of the outer pocket to the inside of the inner pocket (preferably the piston) through at least one connecting hole connecting the internal volume of the outer pocket to the inside of the inner pocket (preferably the piston); and a second route, which runs from the inside of the inner pocket (preferably the piston) to the orifice 24;

[0032] The device according to the present invention may comprise a brake means configured to stop axial movement of the piston within the housing reducing the internal volume of the inner and outer pockets when the movable wall is subjected to a pressing force less than a threshold force.

[0033] in this case: the braking means may be integral with the piston and preferably comprise at least one tongue inclined towards the outside of the piston; and / or The braking means may be integral with the housing of the piston and preferably comprise at least one tongue inclined towards the inside of the housing.

[0034] The device of the present invention may be configured such that with each application of pressure on the movable wall greater than a threshold force and / or with each reduction in the internal volume of the inner and outer pockets, the connecting hole is closed and fluid is guided along the second route.

[0035] The device of the present invention may be configured such that after each application of a pressure force greater than the threshold force and / or after each increase in the internal volume of the inner and outer pockets, the connecting hole opens and guides the fluid along the first route.

[0036] The connection holes are: - may be formed at the connection between one end of the piston and one end of the piston housing; and / or The piston may be provided with a hole disposed in the housing. The connection hole is preferably - Closes during piston movement to reduce the internal volume of the pocket, The pocket may be configured to open during movement of the piston, increasing the internal volume of the pocket.

[0037] The device may include a distribution channel configured to direct fluid from the interior pocket towards the orifice. In this case, the device according to the invention may comprise a distribution valve disposed in the distribution channel and configured to direct fluid from the inner pocket to the orifice.

[0038] The device of the present invention also comprises: - distribution valves, and a mixer configured to receive the different separate fluid streams and mix them into an atomized mixture at the orifice.

[0039] One end of the distribution valve may be integral with a rod configured to be inserted into the mixer to form different channels configured to direct different separate flows of fluid into the mixer.

[0040] The movable wall may be a deformable wall. The movable wall may comprise a connecting wall. The movable wall may be separate from the connecting wall. The movable wall may be rigid.

[0041] The device according to the present invention may comprise a reservoir in communication with the outer pocket via a supply opening, said reservoir comprising an internal volume configured to contain a fluid, said internal volume being defined at least in part by a deformable casing. The deformable casing of the reservoir may comprise a continuous radial corrugation about the axis.

[0042] The device according to the present invention may further comprise an outer pocket, the inner pocket being at least partially disposed within the outer pocket, the inner pocket having an internal volume configured to contain a fluid, and the outer pocket having an internal volume not configured to contain a fluid, the internal volume of the outer pocket being at least partially defined by a movable wall configured to reduce the internal volume of the outer pocket by deforming and / or moving under the action of a pressing force, and the device being configured to guide fluid from inside the reservoir and / or piston to inside the inner pocket following a path comprising a direct route, without passing through the interior of the outer pocket.

[0043] The device according to the invention may further comprise brake means configured to stop axial movement of the piston within the housing reducing the internal volume of the internal pocket when the movable wall is subjected to a pressing force less than a threshold force, the brake means preferably comprising: - lugs or tongues, which are arranged on the outside of the piston and / or on the inside of the housing, and which are configured to be rubbed or blocked by the respective surfaces of the inside of the housing and / or the outside of the piston; and / or - lugs or tongues, which are arranged on the outside of the housing and / or on the inside of a wall arranged around the housing, and which are configured to be rubbed or blocked by the respective surfaces of the inside of the wall and / or the outside of the housing.

[0044] The inner pocket is preferably below the outer surface of the device, less than 10 mm below the outer surface. The action of the pressing force preferably allows lateral outflow of the product through the orifice and displacement of the movable wall towards the reservoir or in the immediate vicinity of the reservoir.

[0045] In a plane perpendicular to the direction of axial movement of the piston relative to the housing, the inner pocket preferably has a cross-section that is smaller than the cross-section of the outer pocket and / or the area of ​​the pressing surface configured to receive a pressing force from outside the device and / or the cross-section of the reservoir.

[0046] The pockets are - directly beneath a pressure surface configured to receive a pressure force from outside the device, or - located directly below an assembly consisting of a pressure surface configured to receive a pressure force from the outside of the device and a channel provided with a valve.

[0047] The device according to the invention may comprise non-metallic return means arranged to withdraw the piston from its housing. The area of ​​the interior cross section of the housing may be divided by at least two relative to the area of ​​the pressing surface configured to receive a pressing force from outside the device.

[0048] According to a third aspect of the present invention, the present invention is able to achieve at least one of the aforementioned objects by providing a device for dispensing fluids, comprising: - orifice, a pocket, which has an internal volume for containing a fluid, the internal volume being at least partially defined by a movable wall; a reservoir configured to contain a fluid; - pocket caps, - cavity, - a reservoir opening, which forms the connection between the reservoir and the cavity.

[0049] The pocket cap is preferably configured to be attached by insertion into the cavity of the device, extending and attaching as follows: - preferably from the reservoir to the orifice at least partially through the pocket where it passes through the movable wall, or - At least partially aligned with the pocket.

[0050] The device preferably includes an entrance opening configured to allow the pocket cap to be inserted into the device from outside the device and configured to open into the cavity. The pocket cap may have an interior volume into which a dispensing valve is inserted, the dispensing valve allowing fluid to pass from the interior volume of the pocket to the orifice in an open state and not allowing fluid to pass in a closed state.

[0051] The interior volume of the pocket cap preferably connects the reservoir to the orifice. The internal volume of the pocket cap is preferably at least 1 cm 3 , or 3 cm 3 , and even 5cm 3 It has a volume of

[0052] The pocket cap may preferably comprise: a supply valve which, in an open state, allows the passage of fluid from the reservoir to the interior volume of the pocket, and in a closed state, does not allow it; and / or a distribution valve which, in an open state, allows the passage of fluid from the interior volume of the pocket to the orifice, and in a closed state, does not allow it.

[0053] Preferably, the distribution valve and the supply valve are integral and may be a single part. Preferably, the pocket cap may include a housing configured to house the supply valve and the dispensing valve.

[0054] The pocket cap may have an internal volume called a head reservoir, which is configured to open on one side to a reservoir opening and on the other side to a dispensing opening that connects the head reservoir to the internal volume of the pocket.

[0055] The internal volume of the head reservoir must be at least 1 cm 3 , or at least 3 cm 3, or at least 5 cm 3 and / or may contain air or the fluid to be dispensed.

[0056] The device may include a supply valve which, in an open state, allows fluid to flow from the reservoir to the interior volume of the pocket, and which, in a closed state, does not allow it. The supply valve may be disposed within the pocket cap, which, in an open state, opens the supply opening, and, in a closed state, closes the supply opening.

[0057] The pocket cap may be inserted into the reservoir opening to at least partially define the head reservoir and may be attached to the cavity such that the walls of the pocket cap, preferably at the end of the threading, form a sealed connection between the interior volume of the pocket and the reservoir and / or between the interior volume of the pocket and the head reservoir.

[0058] The head cap may further comprise a second portion, preferably in which the distribution channel is disposed, configured to direct fluid from the interior volume of the pocket towards the orifice, separate from the head reservoir.

[0059] The second portion may comprise a dispensing valve that allows fluid to pass from the interior volume of the pocket to the orifice in an open state and does not allow fluid to pass in a closed state.

[0060] The device may be configured to direct the fluid along a path that includes the following route: - a first route from the reservoir through the reservoir opening to the head reservoir, then - a second route from the head reservoir through the supply opening to the internal volume of the pocket, and then - A third route connecting the internal volume of the pocket to the orifice via the second part of the pocket cap.

[0061] The device may be configured to direct fluid along the first and second routes at each end of a pressing force on the movable wall of the pocket and / or at each increase in the internal volume of the pocket.

[0062] The device may be configured to direct the fluid along a third route with each pressing force on the movable wall of the pocket and / or with each reduction in the internal volume of the pocket, and the supply opening may be closed by a valve.

[0063] The reservoir may include at least one flexible wall configured to be inserted into the head reservoir as the reservoir is emptied of fluid. The pocket cap may comprise fastening means configured to fasten the pocket cap to the wall defining the cavity by screwing.

[0064] The securing means may comprise an anti-unlocking system of the pocket cap relative to the cavity, configured to prevent loosening of the pocket cap.

[0065] The reservoir, cavity and pocket may be integral to form a single piece. The reservoir, cavity and pocket may be integral so as to form a single part, except for the movable wall of the pocket.

[0066] The movable wall of the pocket may be assembled by welding as a single piece formed by the cavity and the reservoir. The reservoirs and cavities may be created by polymer injection or 3D printing.

[0067] The reservoir may extend longitudinally about a first axis of elongation; The pocket may extend longitudinally about a second axis of elongation, and / or the pocket cap may extend longitudinally about a third axis of elongation; The first axis of elongation may be offset relative to the second and / or third axes.

[0068] The first elongation axis and / or the second elongation axis and / or the third elongation axis may be parallel to one another. The pocket cap may extend in the elongation direction and may be configured to be attached by insertion into the cavity from an insertion direction parallel to the elongation direction, with the inlet opening and the reservoir opening aligned with the elongation direction.

[0069] The cavity may comprise a deformable wall configured to laterally increase the volume of the reservoir. The cap may include a vent. The cap may be configured to slide within the bottom wall and / or may include a flexible or breakable component.

[0070] According to a fourth aspect of the present invention, the present invention is able to achieve at least one of the aforementioned objects by providing a device for dispensing fluids, comprising: - orifice, a pocket, which has an interior volume for containing a fluid, the interior volume of the pocket being at least partially defined by a movable wall; a reservoir, which is configured to contain a fluid and has two openings, an upper opening and a lower opening, facing the pocket, the reservoir preferably being configured to reduce its internal volume when the fluid leaves the reservoir; a distributing valve, which in the open state allows the passage of fluid from the pocket to the orifice and in the closed state does not allow it; a supply valve, which in its open state allows the fluid contained in the reservoir to pass towards the pocket and which in its closed state does not allow it; The lower opening is configured to allow the passage of fluid, preferably the passage of a cannula (or filling rod) that transports fluid, so that the reservoir is at least partially filled up to at least the supply valve, so that the fluid comes into contact with the supply valve, and preferably so that the volume within the pocket is also at least partially filled with fluid.

[0071] The reservoir is at least partially defined by a movable piston configured to move to reduce the internal volume of the reservoir as fluid leaves the reservoir, the piston having a lower opening 87 that is blocked by a removable cap. A removable cap is preferably threaded onto the piston.

[0072] The piston may include at least one hole 95 configured to allow passage of fluid between the reservoir and a sealing zone, the sealing zone being provided between the piston and a wall along which the piston is configured to move.

[0073] The piston is provided between the reservoir and a bottom wall, and the bottom wall is provided with a rotation stop means (e.g., typically including a slot into which part of the piston is inserted and / or means for clipping the piston) that stops the piston from rotating when the piston contacts the bottom wall as the cap is screwed onto the piston.

[0074] the piston may have a polygonal shape with several sides connected at an angle in a cross section perpendicular to the direction of movement of the piston along the wall; The device may further comprise a force distribution component configured to force the piston against the wall on some (preferably all) sides of the polygon, excluding the corners of the polygon.

[0075] The reservoir configured to contain a fluid includes: a flexible wall with two openings, an upper opening facing the pocket and a lower opening; It may be defined by a preferably removable, rigid wall configured to close the lower opening.

[0076] The flexible wall is fixed in the pocket according to the sealing connection by: - by welding, and / or - by clipping and / or - by interlock, and / or - by compression, this fixation being achieved by compression of the flexible wall around the upper opening, i.e. between, on the one hand, the part that forms the pocket or is integral with it and is located outside the reservoir, and, on the other hand, a ring inserted inside the reservoir (and whose upper edge may form the supply valve seat). The ring may be integral with the rigid wall.

[0077] The area of ​​the cross-section of the upper opening (which cross-section is selected to minimize the area of ​​the upper opening) is preferably at least two times (preferably even at least four times) smaller than the area of ​​the cross-section of the lower opening (which cross-section is selected to minimize the area of ​​the lower opening).

[0078] The flexible wall and the supply valve may be formed as the same piece having a continuum of material. The flexible wall may be configured to deform to reduce the internal volume of the reservoir as fluid exits the reservoir.

[0079] The device, preferably a rigid wall, may be configured to keep the position of the lower opening of the device fixed relative to the position of the upper opening of the device.

[0080] The first aspect and / or the second aspect and / or the third aspect and / or the fourth aspect of the present invention may be combined with each other. [Brief explanation of the drawings]

[0081] Other advantages and features will become apparent from a review of the detailed description of non-limiting examples and the accompanying drawings below. [Figure 1] FIG. 1 is a side cross-sectional view of a first embodiment of a device according to the invention, with its dispensing head in a stable position. [Figure 2] FIG. 2 is a side cross-sectional view of a first embodiment of a device according to the invention, with its dispensing head in an inclined position. [Figure 3] FIG. 3 is a perspective view of a first embodiment of a device according to the invention, with its dispensing head removed. [Figure 4] FIG. 4 is an enlarged side view of a first embodiment of a device according to the present invention. [Figure 5] FIG. 5 is a schematic diagram of an exemplary, non-limiting embodiment of a cap with a lid according to the present invention. [Figure 6] FIG. 6 is a schematic diagram of a non-limiting exemplary embodiment of a supply valve according to the present invention.

[0082] [Figure 7] FIG. 7 is a side cross-sectional view of a second embodiment of a device according to the invention, with its dispensing head in a stable position. [Figure 8] FIG. 8 is a side cross-sectional view of a second embodiment of a device according to the present invention, with its dispensing head in a tilted position. [Figure 9] FIG. 9 is an exploded perspective view of a second embodiment of a device according to the invention, with its dispensing head in a stable position. [Figure 10] FIG. 10 is a side cross-sectional view of the reservoir and pocket of a second embodiment of a device according to the invention after the reservoir has been partially emptied. [Figure 11] FIG. 11 is a side cross-sectional view of the pocket and reservoir of a second embodiment of a device according to the invention after the reservoir has been completely emptied. [Figure 12] Figure 12 is a cross-sectional view of the bottom of the reservoir in Figure 10.

[0083] [Figure 13] FIG. 13 is an exploded perspective view of a third embodiment of a device according to the invention, with its dispensing head in a stable position. [Figure 14] FIG. 14 is a side cross-sectional view of a third embodiment of a device according to the present invention, with its dispensing head in a stable position. [Figure 15] FIG. 15 is a side cross-sectional view of a third embodiment of a device according to the present invention, with its dispensing head in a tilted position. [Figure 16] FIG. 16 is an enlarged cross-sectional view of a third embodiment of a device according to the invention when the reservoir 6 is extended for filling thereof.

[0084] [Figure 17] FIG. 17 is a side cross-sectional view of a portion of a fourth embodiment of a device according to the present invention. [Figure 18] FIG. 18 is a perspective view of a portion of a fourth embodiment of a device according to the present invention.

[0085] [Figure 19] FIG. 19 is a side cross-sectional view of a fifth embodiment of a device according to the present invention. [Figure 20] FIG. 20 is an exploded perspective view of a fifth embodiment of a device according to the present invention without a reservoir. [Figure 21] FIG. 21 is a side cross-sectional view of a flow channel of a fifth embodiment of a device according to the present invention. [Figure 22] FIG. 22 is a cross-sectional view of a flow channel of a fifth embodiment of a device according to the present invention.

[0086] [Figure 23] FIG. 23 is an exploded perspective view of a sixth embodiment of a device according to the present invention. [Figure 24] FIG. 24 is a side cross-sectional view of a sixth embodiment of a device according to the present invention. [Figure 25]25A to 25C are side cross-sectional views showing steps in the manufacturing process of a sixth embodiment of the device according to the present invention.

[0087] [Figure 26] FIG. 26 is a side cross-sectional view of a seventh embodiment of a device according to the present invention. [Figure 27] FIG. 27 is an exploded perspective view of a seventh embodiment of a device according to the present invention. [Figure 28] FIG. 28 is an exploded perspective view of an eighth embodiment of a device according to the present invention. [Figure 29] FIG. 29 is a side cross-sectional view of an eighth embodiment of a device according to the present invention. [Figure 30] FIG. 30 is a side cross-sectional view of a ninth embodiment of a device according to the present invention.

[0088] [Figure 31] FIG. 31 is an exploded perspective view of a tenth embodiment of a device according to the present invention. [Figure 32] FIG. 32 is a side cross-sectional view of a tenth embodiment of a device according to the present invention. [Figure 33] FIG. 33 is a side cross-sectional view of an eleventh embodiment of a device according to the present invention. [Figure 34] FIG. 34 is a side cross-sectional view of a twelfth embodiment of a device according to the present invention.

[0089] [Figure 35] FIG. 35 is a side cross-sectional view of a thirteenth embodiment of a device according to the present invention. [Figure 36] FIG. 36 is a side cross-sectional view of a portion of a thirteenth embodiment of a device according to the present invention. [Figure 37] FIG. 37 is a side cross-sectional view of a portion of a thirteenth embodiment of a device according to the present invention. [Figure 38] FIG. 38 is a side cross-sectional view of a portion of a thirteenth embodiment of a device according to the present invention. [Figure 39]FIG. 39 is a side cross-sectional view of a portion of a thirteenth embodiment of a device according to the present invention. [Figure 40] FIG. 40 is an exploded perspective view of a thirteenth embodiment of a device according to the present invention.

[0090] [Figure 41] FIG. 41 is a side cross-sectional view of a fourteenth embodiment of a device according to the present invention. [Figure 42] FIG. 42 is a side cross-sectional view of a fourteenth embodiment of a device according to the present invention. [Figure 43] FIG. 43 is a perspective view of the flexible wall 108 of a fourteenth embodiment of the device according to the invention. [Figure 44] FIG. 44 is a side cross-sectional view of a fourteenth embodiment of a device according to the present invention. [Figure 45] FIG. 45 is a side cross-sectional view of a flexible wall 108 of a fourteenth embodiment of a device according to the invention. [Figure 46] FIG. 46 is an exploded perspective view of a fourteenth embodiment of a device according to the present invention. DETAILED DESCRIPTION OF THE INVENTION

[0091] It is understood that the embodiments described below are in no way limiting. It is possible to consider a variant of the present invention that includes only one selected feature from the plurality of features described below, in particular in isolation from the other described features, if that selection of feature is sufficient to provide a technical advantage over the prior art or to distinguish the present invention. This selection preferably includes at least one functional feature rather than structural details, or includes only a portion of a structural detail, if that selection is sufficient to provide a technical advantage over the prior art or to distinguish the present invention. In particular, all variants and all embodiments described can be combined with one another if there is nothing that prevents this combination from a technical point of view. In the figures, elements common to multiple figures retain the same references.

[0092] 1 to 6, a first embodiment of a device according to the present invention for dispensing fluids will be described.

[0093] 1 to 3, a device 100 for dispensing fluids comprises: a fluid supply means for supplying fluids to a fluid supply port; a pocket 2 having an internal volume adapted to contain a fluid, the internal volume being at least partially defined by a deformable wall 4; a reservoir 6 having an inner casing adapted to contain a fluid; a supply opening 8 connecting the internal volume of the reservoir 6 with the internal volume of the pocket 2; a dispensing head 10 fixed to the deformable wall 4 of the pocket 2, the dispensing head 10 being carried by the deformable wall 4 in a plurality of different possible positions relative to the reservoir 6, the possible positions including at least the following: * a stable position 12 when no external force 18 is exerted on the head 10; an inclined position 14 at an angle 16 relative to the stable position 12 while an external force 18 is exerted on the head 10 so as to deform the deformable wall 4 and reduce the internal volume of the pocket 2 compared to the stable position 12; a distribution channel 20 arranged in the distribution head 10 and configured to direct fluid from the interior volume of the pocket 2 towards an orifice 24 arranged at one end of the distribution head 10; a distribution opening 22 connecting the inner volume of the pocket 2 to the distribution channel 20 .

[0094] In this specification, all configurations of the head are defined within a standard reference to which the supply opening and / or reservoir is fixed. In this specification, the term "flexible" is understood to mean any part that can be deformed under a force of at least 1 kg, has a flexural modulus of, for example, less than 600 MPa, and / or has a sufficiently small thickness.

[0095] In this specification, the term "rigid body" is understood to mean any part that cannot be deformed under a force of up to 1 kg, for example, has a flexural modulus of more than 600 MPa, and / or has a sufficiently large thickness.

[0096] The dispensing head 10 comprises a contact surface 26 configured to receive an external force 18 from outside the device, perpendicular to the longitudinal direction of the dispensing head 10 in the stable position 12 .

[0097] The dispensing head 10 of the device 100 has a length of at least 10 mm (preferably at least 20 mm, or even at least 30 mm, or even at least 40 mm) a longitudinal direction (in the direction of axis A in FIG. 1 ) connecting the dispensing opening 22 to one end of the head 10 (preferably carrying the surface 26 and / or the orifice 24 ); and / or it extends longitudinally, thus in the direction (in the direction of the Z axis in FIG. 1) connecting the dispensing opening 22 to the orifice 24 and / or to the surface 26 (preferably carrying the orifice 24);

[0098] In particular, the long lever arm reduces the dispensing force required, for example, to less than 1 kg, or even less than 0.5 kg if the device is a facial applicator (by comparison, a typical pump requires a dispensing force of around 2 kg). The dispensing head 10 and reservoir 6 extend longitudinally when the head is in its stable position. The dispensing head is longer (along the length) than it is wide (perpendicular to the length).

[0099] The contact surface 26 is accessible from the outside of the device 100 by the hand or fingernail of the user, or by the user's face, and if the contact surface 26 is designed to contact the face, it is within 10 mm 2 , preferably at least 20 mm 2 (preferably at least 30 mm 2 , preferably at least 60 mm2 , more preferably at least 100 mm 2 ) has a minimum surface area of

[0100] Axis A extends in direction X. In the stable position of the device according to the invention, the contact surface 26 extends over a width of less than 15 mm (defined in a plane perpendicular to the direction X) and has a width of at least 30 mm. 2 , preferably at least 60 mm 2 , preferably at least 100 mm 2 The distribution channel 20 forms an angle of between -45° and 45° (more precisely between -30° and 30°, more precisely between -20° and 20°) relative to the direction X, in which the distribution channel 20 extends from the pocket 2 towards the orifice (over the above region).

[0101] The orifice 24 is located at a distance from the axis A of less than 10 mm. The surface 26 is located at a distance from the axis A of less than 10 mm. The orifice 24 is in the surface 26 . The dispensing head 10 is configured with an opposing inclination relative to the contact surface 26. The dispensing head may be provided at its end with an applicator and / or massaging element, which may be made of metal, facing the surface 26. The device is configured such that forces acting on this surface do not tilt the head, or only slightly tilt it, thereby limiting or prohibiting the discharge of product.

[0102] The pocket 2 is mainly composed of three parts: a first part including the deformable wall 4, a second part including the rigid wall 54, and a third part 84 (of the pocket 2) that is fixed to the reservoir 6.

[0103] The rigid wall 54 of the pocket 2 is arranged below the deformable wall 4. The deformable wall 4, or more precisely its lower part, is fixed to or integral with the rigid wall 54 of the pocket 2 at the level of the connection point 58.

[0104] The deformable wall 4 of the pocket 2 is formed by a part 41 and a part 42 . The parts 41 and 42 are opposed to each other. The part 41 of the deformable wall 4 is configured to bend under the effect of compression by the external force 18, while the part 42 of the deformable wall 4 stretches very slightly under the effect of tension, but moves less than the part 41, so that when the external force 18 is applied to the contact surface 26 of the dispensing head 10, tilting of the head 10 of the device 100 is promoted on the side of the part 41. In order to promote tilting of the part 41, the length of the curve in the cross section of the part 41 of the dispensing head 10 in the stable position 12 is longer than the length of the part 42 (forming the hinge).

[0105] The deformable wall 4 therefore has an asymmetry about the axis A, so that the pocket 2 is configured to promote tilting of the dispensing head 10 in the preferred tilting direction, i.e., opposite the contact surface 26 and / or the orifice 24. The parts 41 and 42 are therefore asymmetric to promote tilting of the dispensing head 10 on the side of the part 41.

[0106] Therefore, the deformable wall 4 of the pocket 2 is - a particular flexibility allowing tilting of the dispensing head 10, i.e. its transition from its stable position 12 to its tilted position 14; a resilient return force configured to return the tilted dispensing head 10 based on its tilted position 14 to its stable position 12. The deformable wall 4 is, for example, a thin wall, and the rigid wall 54 is, for example, a wall that is thicker than the wall 4 .

[0107] Preferably, the deformable wall 4 can be associated with the wall 54 by "co-molding", i.e. either by overmolding or bi-injection of materials with different flexibility, preferably using PP for the rigid wall 54 of the pocket 2 and TPO for the deformable wall 4 of the pocket 2.

[0108] The parts 41 and 42 of the deformable wall 4 and the rigid wall 54 can be injection moulded in one go if the rigid wall 54 and the deformable wall 4 of the pocket are made of, for example, polypropylene.

[0109] The deformable wall 4 is preferably made of PP with a polymer or plastomer additive (such as Vistamaxx™ 6202) to reduce the hardness of the wall 4 so that the hardness is less than 80 Shore D. This prevents the wall 4 from being too thin or too weak.

[0110] The rigid wall 54 is configured to fit into the third portion 84 of the pocket 2 . At the weld or connection point 58, a stop 66 provides a connection between the third portion 84 of the pocket 2 and the rigid wall 54 of the pocket 2. This stop 66 is perpendicular to the axis A when the device 100 is in the stable position 12.

[0111] The deformable wall 4 of the pocket 2 holds a dispensing head 10 . The pocket 2 is fixed to the dispensing head 10. The pocket 2 is embedded in the dispensing channel 20 of the dispensing head 10, in particular via a ring 88.

[0112] The dispensing head 10 comprises a ring 88, which is arranged at the connection between the inner volume of the pocket 2 and the dispensing channel 20, in which the dispensing opening 22 is accommodated. In particular, at said connection between the inner volume of the pocket 2 and the dispensing channel 20, the deformable wall 4 of the pocket 2 is compressed against the dispensing channel 20 by the ring 88. In particular, at the level of said connection between the volumes, inside the pocket 2, the deformable wall 4 of the pocket 2 is compressed against the dispensing channel 20 by the ring 88.

[0113] The dispensing head 10 is traversed along its entire length by a dispensing channel 20 . The distribution channel 20 begins at the level of the distribution opening 22 and extends to an orifice 24 housed in the distribution head 10 .

[0114] Additionally, the dispensing head 10 includes a dispensing valve 28 disposed in the dispensing channel 20 which, in an open state, allows fluid to pass from the dispensing channel 20 to the orifice 24 and, in a closed state, does not allow it.

[0115] The dispensing valve 28 is typically made from thermoplastic polyolefin or TPO (polyolefin blend: polyethylene and polypropylene) (flexible, recyclable), polypropylene (PP) or modified polyethylene (PE). TPO has the advantage of flexibility and, when using the same subfamily (e.g., PP with TPO-based PP), can be more easily recycled.

[0116] The dispensing valve 28 is configured to remain in its closed state as long as the tilt angle 16 is less than 2° or 5° relative to the stable position 12. The device 100 is configured not to tilt more than 2° unless a threshold force is reached, which corresponds to, for example, an applied force (perpendicular to the surface 26) of 0.5 kilograms (kg).

[0117] In the case of device 100, when the external force 18 is equal to or greater than a threshold force of 0.5 kg, the overpressure within pocket 2 and distribution channel 20 allows distribution valve 28 to open, thus causing the distribution of fluid at orifice 24.

[0118] When the dispensing head 10 is in its stable position 12 and the external force 18 is less than the threshold force, the dispensing head 10 will not tilt more than 2 degrees from its stable position 12 . When the dispensing head 10 is in the tilted position 14 and the external force 18 is smaller than the threshold force but is present to suppress the elastic return force of the pocket 2 (or more precisely, the deformable wall 4), the dispensing head 10 remains tilted in the tilted position 14.

[0119] 1 to 3, the dispensing head 10 comprises two separable parts 101, 102, which are: an upper part 101 in which the distribution valve 28 is arranged; a lower part 102 fixed to the pocket 2 and equipped with an anti-drip device 30;

[0120] The drip prevention device 30 is arranged at the junction of these two parts 101, 102 and comprises a valve body 301 in the distribution channel 20, which - these two parts 101, 102 are configured to open when assembled to allow fluid to pass through the orifice 24; and - When these two parts 101, 102 are separated, they are configured to close and prevent the escape of fluid from this lower part 102 to the outside of the device. The upper and lower parts 101, 102 are nested one inside the other.

[0121] The distribution valve 28 has parts 281, in particular one of its ends 281, which is configured to maintain the valve body 301 of the anti-drip device 30 in its open state, i.e. in a position that allows the passage of fluid towards the orifice 24, when the two parts 101, 102 of the head 10 are assembled. The end 281 has a tapered shape, which allows the valve 301 of the anti-drip device 30 to open towards the 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 conveyed towards the orifice 24.

[0122] The distribution valve 28 includes a portion 282 that is clamped and held between the inner walls of the distribution channel 20 . The dispensing valve 28 is housed in a dispensing housing 80. The housing 80 is part of the channel 20.

[0123] Part 282 is stationary between the open and closed states of dispensing valve 28. Conduit 283 allows fluid between part 282 and the inner wall of housing 80 to pass in the direction of orifice 24 when valve 28 (or more precisely its movable part 284) is open.

[0124] The distribution valve 28 has a movable part 284 which is pressed against the distribution valve seat 105 to close the distribution valve seat 105 when the distribution valve 28 is in a closed state, and which moves in a direction away from the distribution valve seat 105 to open the distribution valve seat 105 when the distribution valve 28 is in an open state. This part 284 is a membrane.

[0125] The dispensing valve 28 comprises a portion 284, which is inserted into the upper part 101 of the dispensing head 10. The portion 284 is the portion of the dispensing valve 28 closest to the orifice 24. The portion 284 is the movable membrane 284 of the dispensing valve 28. Portion 284 is movable between open and closed positions of dispensing valve 28 .

[0126] The dispensing valve seat 105 is a lateral portion of the inner wall of the housing 80, and this valve seat 105 is limited to one surface of the inner wall of the housing 80, and is preferably flat (or curved) and does not go all the way around the cross section of the housing 80 as imagined in a plane perpendicular to the direction of elongation of the portion of the housing 80 surrounding the valve 28.

[0127] In one embodiment of a method for manufacturing the device 100, the distribution valve 28 is attached to the distribution housing 80 by inserting the distribution valve 28 into the upper head 101 through the connection between the upper head 101 and the lower head 102 before the upper head 101 and the lower head 102 are assembled together.

[0128] The device 100 , in particular the upper part 101 of the dispensing head 10 , is provided with an orifice 24 . The orifice 24 opens to the outside of the device 100 . The orifice 24 is arranged at an end of the dispensing head 10, in particular in the upper part 101 of the dispensing head 10. The orifice 24 is arranged on the left side of the dispensing head 10 relative to the axis A.

[0129] The contact surface 26 surrounds or is adjacent to the orifice 24 . Orifice 24 is configured to dispense fluid in a direction substantially normal to pressure surface 26 . The orifice 24 is configured to dispense fluid in a direction substantially perpendicular to and opposite to an external force 18 applied to a contact surface 26 at the level of the dispensing head 10 .

[0130] 1 to 4, the pocket 2 is fixed to the reservoir 6. To fix the pocket 2 to the reservoir 6, the device 100 further comprises means 32 for threading the pocket 2 onto the barrel 55, thereby fixing the reservoir 6. The screwing means 32 comprises a screw thread 32 .

[0131] The pocket 2 has an end piece 34 configured to submerge (i.e., fit) the reservoir 6. The end piece 34 is rigid, preferably made of PP or PE, and is preferably at least 8 mm long. A dispensing opening 8 is configured at the end of the end piece 34. In a variation of the device 100, the end piece 34 is pressed into the reservoir 6 to secure the pocket 2 to the reservoir 6.

[0132] In device 100, reservoir 6 is provided with a lid 36 configured to stop fluid contained in reservoir 6 from flowing into pocket 2 unless end piece 34 of pocket 2 is pressed into reservoir 6. Before pocket 2 is placed over reservoir 6, reservoir 6 is airtight because lid 36 has not yet been pierced.

[0133] The end piece 34 is configured to penetrate the lid 36. Thus, to secure the pocket 2 to the reservoir 6, it is necessary to press the end piece 34 into the reservoir 6 and then screw the means 32 to screw the pocket 2 into the barrel 55 for securing the reservoir 6. During the step of screwing the means 32 into the barrel 55, a finger 75 located at the bottom of the barrel 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 being configured to press said piston through an opening configured in the bottom of the rigid cylindrical container.

[0134] The device 100 comprises a supply valve 38 arranged at the level of the supply opening 8, more precisely inside the end piece 34 at the supply valve seat 62, which in the open state allows the passage of the fluid contained in the reservoir 6 in the direction of the pocket 2 and in the closed state does not allow such passage.

[0135] 1 to 3, the reservoir 6 is configured to reduce its internal volume after each opening of the supply valve 38. In Figures 1 to 4, the reservoir 6 portion further comprises a supply valve 38 housed at the level of a supply valve seat 62, said supply valve 38 being arranged at the connection between the internal volume of the pocket 2 and the internal volume of the reservoir 6.

[0136] The supply valve 38 of the device 100 is shown in FIG. The supply valve 38 has two parts: an upper part formed of a cylinder, and a lower part. The lower part of the supply valve 38 is equipped with a pusher or membrane 381. The supply valve 38 is typically made of TPO.

[0137] The supply valve 38 is located inside the pocket 2, - In the closed position, press the supply opening 8 In the open position, it is arranged to be away from the supply opening 8. In a resting state, ie, when the device 100 is not subjected to stress or external force 18, the supply valve 38 is in its closed state.

[0138] The dispensing valve 38 includes a second anti-drip device disposed inside the end piece 34 together with the valve 38 and the dispensing valve seat 62. The second anti-drip device is configured to limit the amount of product remaining in the dispensing opening 8. The second anti-drip device may be integrated with the dispensing valve 38. The dispensing valve 38 is designed to close when a force is applied to the pocket 2.

[0139] Preferably, the valve 38 is in its closed state even in the rest state, ie when the device 100 is not subjected to stress or external force 18, even though this is less important.

[0140] When the pocket 2 is filled with the fluid to be dispensed and the volume of the pocket 2 is reduced (e.g., by increasing and / or applying an external force 18 at the contact surface 26): - the dispensing valve 28 (more precisely the membrane 284) moves away from the dispensing valve seat 105 and the dispensing valve 28 is in its open state; fluid leaves the orifice 24 and the pocket 2 is at least partially emptied, The supply valve 38 (in particular the valve body 381 of the valve 38) is pressed against the inner wall of the end piece 34 of the pocket 2, blocking the passage of fluid from the supply opening 8. In its closed state, the supply valve 38 is in such a state that no (or very little) fluid can flow out of the pocket 2 into the reservoir 6.

[0141] When the pocket 2 is filled with the fluid to be dispensed and the volume of the pocket 2 increases (e.g., by releasing the external force 18 on the contact surface 26): the dispensing valve 28 (more precisely the membrane 284) is pressed against the dispensing valve seat 105, the valve 28 is in its closed state; no fluid can pass from the pocket 2 to the orifice 24, - The supply valve 38 is "sucked" and the valve disc 381 of the valve 38 moves away from the inner wall of the end piece 34 of the pocket 2 facing the supply opening 8. The valve 38 is in its open state; fluid can pass from the reservoir 6 (through the supply opening 8) to the pocket 2 and refill the pocket 2.

[0142] The reservoir 6 has a portion 64 provided with a sealing skirt 60 having a lid 36 , said sealing skirt 60 being arranged at the junction of the end piece 34 of the pocket 2 and the upper casing of the reservoir 6 .

[0143] The portion 64 of the reservoir 6 is integral with the internal casing of the reservoir 6. The portion 64 of the reservoir 6 is in particular located at the top of the reservoir 6 and within the housing of the reservoir 6 at the connection between the reservoir 6 and the end piece 34 of the pocket 2. The supply opening 8 is arranged at the end of the end piece 34 , ie at the connection between the reservoir 6 and the pocket 2 .

[0144] FIG. 5 shows the sealing skirt 60 that includes the lid 36 . The sealing skirt 60 is typically made of PP, as is the lid 36. The lid 36 is made of the same material as the sealing skirt 60. There is a continuity of material between the sealing skirt 60 and the lid 36. Therefore, the sealing skirt 60 and the lid 36 form a single piece.

[0145] The reservoir 6 is preferably made of polyolefin and is manufactured by blow molding. Figures 1 and 2 show two configurations of a device 100 typically configured to dispense a fluid. The fluid comprises a liquid and / or a gas, and is preferably a liquid, a cream, a paste, a gel, or a mixture thereof.

[0146] The plane of the connection between the upper head 101 and the lower head 102 and the plane in which the dispensing openings 22 are arranged are parallel to each other. 1-3, the dispensing head 10 extends longitudinally primarily along an axis A. Unless otherwise stated, throughout this description, axis A is defined by default as axis A in stable position 12.

[0147] This axis A passes through the center of gravity of the distribution opening 22 and the central axis of the distribution channel 20 . The central axis of the distribution channel 20 passes through the center of gravity of the connection between the upper head 101 and the lower head 102 .

[0148] 1, no external force is applied to the level of the contact surface 26. The dispensing head 10 is therefore in a stable position 12. The device 100 is said to be in the stable position 12 when the plane containing the stops 66 of the pocket 2 and the plane containing the dispensing opening 22 are parallel. In this case, the axis A intersects the stops 66 of the pocket 2 perpendicularly, in particular at their centre of gravity.

[0149] 2, the external force 18 is applied at the level of the contact surface 26. The dispensing head 10 is therefore in the tilted position 14. The plane containing the stop 66 of the pocket 2 and the plane containing the dispensing opening 22 are no longer parallel. The axis A passes through the center of gravity of the stop 66 but does not intersect it perpendicularly.

[0150] The dispensing head 10 is inclined according to an inclination angle 16, which is shown in FIG. - the axis A or longitudinal direction of the dispensing head 10 in its stable position 12; - the tilt position 14 of the dispensing head 10, i.e. typically defined by the angle between the axis A or the longitudinal direction of the head 10 (e.g. at the intersection on the stop 66) when the dispensing opening 22 is no longer parallel to the stop 66 from the pocket 2.

[0151] This angle 16 is the direction connecting the dispensing openings 22 to the orifices 24 and / or surfaces 26 in the stable position 12 of the dispensing head 10; and the direction connecting the dispensing opening 22 to the orifice 24 and / or the surface 26 in the inclined position 14 of the dispensing head 10 .

[0152] 2, the dispensing head 10 is typically tilted at a twenty-five degree (25°) tilt position 14. However, the dispensing head 10 may be tilted at other tilt positions 14. The contemplated dispensing head 10 is tilted to the right relative to the axis A of the dispensing head 10.

[0153] The dispensing head 10 is configured such that, for various possible tilt positions 14 excluding its stable position 12, it reaches a maximum tilt position when the tilt angle 16 is at least 20°, preferably 30°, or even at least 45° relative to the stable position 12, and the maximum tilt position is configured to reduce the internal volume of the pocket 2 by typically at least 20%. Therefore, even if the external force 18 is greater than the threshold force, the dispensing head 10 cannot be tilted beyond the maximum tilt position. 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, such external force 18 may damage the device 100.

[0154] 7 to 12 show another embodiment of a device for dispensing fluids, device 700. Device 700 includes all elements of device 100. Therefore, only the differences from device 100 will be described. Here, we will assume that axis A is defined by the axis about which dispensing head 10 is centered.

[0155] The dispensing valve 28 of the device 700 includes all of the elements of the dispensing valve 28 of the device 100 except for the portion 281, tapered end 281, of the dispensing valve 28 of the device 100.

[0156] In the device 700 , the deformable wall 4 of the pocket 2 is provided with a bellows 44 . The bellows 44 is a pleated bellows 44. In an alternative embodiment, the device 700 may include at least one fold.

[0157] The bellows 44 is cylindrical in shape and is centered on an axis that is collinear with the axis A when the device 700 is in the stable position 12. In this case, the bellows 44 is therefore provided on its outer wall with corrugations that propagate parallel to the axis A, i.e., parallel to the extension direction of the dispensing head 10.

[0158] In FIG. 7, the device 700 is in stable position 12 . The two parts 41 and 42 of the deformable wall 4 are of the same construction. The device 700 can therefore be tilted according to different tilt positions 14 on either side of the extension axis of the dispensing head 10, or even in all directions of tilt of the dispensing head 10 around the axis A.

[0159] The bellows 44 is configured to be compressed when an external force 18 having at least one component parallel to the axis of the cylinder of the bellows 44 and directed towards the reservoir 6 is applied to the dispensing head 10 . Bellows 44 is made of TPO

[0160] The device 700 comprises a locking means 50 configured to limit and / or prevent the extension of one of the sides of the bellows 44 during any tilted position of the dispensing head 10. Indeed, the bellows 44 of the pocket 2 is provided in a rigid casing 50 that acts as the locking means 50. Thus, in Figure 8, when the bellows 44 is tilted to the left, part 42 of the deformable wall of the bellows 44 collapses and folds, while part 41 is slightly stretched and adjacent to the rigid casing 50. The extension of part 41 of the deformable wall 4 is therefore locked by the rigid casing 50.

[0161] The locking means 50 is also configured to limit and / or prevent extension of the bellows 44 when the bellows 44 is subjected to any extension force.

[0162] Therefore, the distance separating the ends of the part 41 of the deformable wall 4 in the inclined position 14 is equal to or only slightly greater than the distance separating the ends of the part 41 of the deformable wall 4 in the stable position 12.

[0163] The distance separating the ends of the part 42 of the deformable wall 4 in the tilted position 14 is shorter than the distance separating the ends of the part 42 of the deformable wall 4 in the stable position 12. The distance separating the ends of the part 41 of the deformable wall 4 in the tilted position is equal to or greater than the distance separating the ends of the part 42 of the deformable wall 4 in the tilted position 14.

[0164] The distance separating the two ends of the parts 41 and 42 of the deformable wall 4 when the bellows 44 is compressed is smaller than the distance separating the two ends of the parts 41 and 42 of the deformable wall 4 when no force is applied to the dispensing head 10.

[0165] In FIG. 8, the dispensing head 10 is tilted to the left of the axis of elongation of the dispensing head 10 . There is therefore an asymmetry between the two parts 41 and 42 of the deformable wall 4 of the bellows 44 in position 14 . The pocket 2 of the device 700 comprises two end pieces 341 and 342 arranged at the two upper and lower ends of the pocket 2 .

[0166] The upper end of the pocket 2 is provided with a retaining surface 68 . End pieces 341 and 342 are cylindrical in shape. The pocket 2 or module 46 is provided with means 32 for screwing the pocket 2 onto the dispensing head 10. The module 46 may be snapped or screwed onto the pocket 2.

[0167] The means for threading 32 includes a screw thread 32 . The end piece 341 is arranged on the upper end of the pocket 2 , i.e. on the retaining surface 68 , and is adapted to be screwed inside the dispensing channel 20 in the dispensing head 10 . The threads 32 are formed on the outer wall of the end piece 341. The end piece 341 is therefore screwed onto the inside of the dispensing head 10.

[0168] The end piece 342 is configured on the lower end of the pocket 2, i.e., on the surface of the pocket 2 opposite the retaining surface 68. The end piece 342 is configured to fit and / or be integral with the reservoir 6. When device 700 is not subjected to an external force 18, for example in FIG. 7, support surface 68 is flat.

[0169] The device 700 is configured so that the upper end of the pocket 2, and in particular the retaining surface 68, is deformed as little as possible in order to maximize the reduction in the volume of the pocket 2. This configuration can take the following forms: the retaining surface 68 is sufficiently rigid so that the deformation of the retaining surface 68 caused by the tilt of the pocket 2 at the mounting position of the end piece 341 only amounts to a height deformation of no more than 2 or 3 mm relative to the plane of the retaining surface 68 (when no force is applied to the contact surface 26); and / or - an integral reinforcement at the upper end of the pocket 68 (to the wall of the end piece 341), which is typically provided at a plate 52 (or pusher 52) integral with the dispensing head 10 and is preferably secured by interlocking the pocket 2 at the plate 52 (or pusher 52) to the end piece 341 of the dispensing head 10; and / or The end piece 341 has a diameter that is approximately the same as the diameter of the bellows 44, for example a diameter that is at least two-thirds the diameter of the bellows 44.

[0170] The dispensing head 10 is a single component, which is divided into: a central part (preferably cylindrical), having an axis A and in which the distribution channel 20 is arranged, - an applicator, carried by said central portion, comprising at least one curved shape (i.e., a curved surface) with a contact surface 26 and / or an orifice 24. In 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 said central part and arranged at the end of the dispensing head 10 , i.e. at the end of the dispensing head 10 facing the holding surface 68 of the pocket 2 ;

[0171] The part in the form of the plate 52 facing the holding surface 68 comprises the pusher 52 . The distribution channel 20 passes through all portions of the distribution head 10 and is centered about the central axis or axis A of the distribution head 10 .

[0172] The applicator, ie the spherical portion of the dispensing head 10, is located at the top end of the dispensing head 10 and thus provides the orifice 24 through which the fluid of the device 700 exits. The orifices 24 of the device 700 are configured to dispense fluid in the direction of extension of the dispensing head 10 .

[0173] The contact surface 26 of the dispensing head 10, or more precisely of the applicator, extends over the entire curved shape of the applicator, and thus over the entire spherical portion of the dispensing head 10. The device 700 thus has an extended contact surface 26, making it possible to apply the external force 18 at multiple locations located on the applicator of the dispensing head 10. The device 700 can therefore be adapted to different forms of application of the external force 18.

[0174] In FIG. 7, no external force 18 is applied to the contact surface 26 . The longitudinal direction of the dispensing head is defined by axis A, ie the central axis of the central portion of the dispensing head 10 .

[0175] The dispensing head 10 and the reservoir 6 are longitudinally axially aligned when the head 10 is in its stable position 12, ie when there is coaxiality between the dispensing head 10 and the reservoir 6. Also, the dispensing head 10 and the pocket 2 are longitudinally axially aligned when the head 10 is in its stable position 12, ie, when there is coaxiality between the dispensing head 10 and the pocket 2.

[0176] The dispensing head 10 is configured to tilt in the opposite direction to which the external force 18 is applied at the contact surface 26 . The configuration of the device 700 , ie, the use of the bellows 44 and the spherical contact surface 26 , causes the dispensing head 10 and the pocket 2 to follow the same tilting motion when an external force 18 is applied to the device 700 at the contact surface 26 .

[0177] 8, the external force 18 is applied to the right side of the contact surface 26. The dispensing head 10 and pocket 2 are tilted to the left of the axis of extension of the dispensing head 10, ie to the left of axis A.

[0178] The dispensing head 10 includes a pusher 52 configured for the following operations: - pressing against the retaining surface 68 of the pocket 2, preferably against the retaining surface 68 of the bellows 44, and said holding surface 68 remains fixed relative to the dispensing head 10;

[0179] In the case of Figure 8, when the dispensing head 10 is tilted, the locking means 50 presses against the pusher 52, which itself presses against the retaining surface 68 of the pocket 2. In Figures 7 and 8, the retaining surface 68 and the pusher 52 are held together by clamping the locking means 50 onto the case 70 containing the reservoir 6. The case 70 may be made of metal and / or polymer.

[0180] The locking means 50 , ie the rigid case 50 , is configured to limit and / or prevent extension of one side of the pocket 2 and thus limit tilting of the dispensing head 10 . The locking means 50 is cylindrical. The means 50 comprises an opening for inserting the head 10 .

[0181] The dispensing head 10 is placed in the opening of the locking means 50. The opening of the locking means 50 therefore surrounds the central part of the dispensing head 10. The opening of the locking means 50 therefore has a larger inner diameter than the central part of the dispensing head 10, limiting tilting of the dispensing head 10 while allowing it to tilt.

[0182] Thus, the inner and / or outer diameter of the locking means 50 can be selected to define the maximum tilt angle. The locking means 50 comprises screwing means 102 on its outer wall for screwing the locking means 50 into the rigid case 70 which comprises the reservoir 6. The rigid case 70 is configured to contain the entire volume of the reservoir 6.

[0183] The reservoir 6 comprises components comprising: a supply valve 38, housed in a supply valve seat, said valve 38 being arranged at the connection between the internal volume of the pocket 2 and the internal volume of the reservoir 6; a cap 40 with a lid 42, said cap 40 being arranged at the connection between the internal volume of the pocket 2 and the distribution channel 20 and adapted to fit onto the end piece 341 (the internal part of the end piece 341); and a connecting element 46, connecting the supply valve 38 and the cap 40, which is configured to deform during deformation of the pocket 2;

[0184] The reservoir 6 part comprising the cap 40 further comprises a supply valve 38 housed in a supply valve seat 62, said valve 38 being arranged at the connection between the internal volume of the pocket 2 and the internal volume of the reservoir 6.

[0185] The cap 40 further comprises insertion means configured to push the supply valve 38 into the end piece 342 , more precisely inside the end piece 342 of the pocket 2 .

[0186] These insertion means are preferably connected to the supply valve at the end opposite the supply valve and are means for carrying and fixing the supply valve so as to form an element inserted and held in a pocket, more precisely means for fitting it into a pocket on the side of the upper end piece 341 and / or the lower end piece 342.

[0187] The supply valve is housed in the lower end piece. The cap lid is housed in the top end. A connecting element connects the supply valve to the insertion means. In the case of FIGS. 7 to 9, the supply valve 38, the cap 40 with the lid 42 and the connecting element 46 form a single unique connecting part 701.

[0188] Therefore, for end pieces 341 and 342 of pocket 2: the end piece 341 of the pocket 2 has a hollow (and cylindrical) inner diameter adapted to receive the cap 40 of the connecting piece 701; The end piece 342 of the pocket 2 comprises a hollow (and cylindrical) inner diameter configured to accommodate the supply valve 38 of the connecting piece 701 (and to fit the upper end of the reservoir 6).

[0189] In the case of FIGS. 7 and 8, the connecting element 46 is flexible and is located within the interior volume of the pocket 2.

[0190] The device 700 further comprises a perforator 48, which is arranged in the dispensing head 10 and is configured to perforate the lid 42 of the cap 40 housed in the dispensing valve seat when the device 700 is assembled. Thus, the perforator 48 mainly comprises an end with a sharp angle, which is directed towards the lid 42 of the cap 40 and which is arranged to penetrate the lid 48 of the cap 40.

[0191] In the case of FIGS. 7 to 9, the connection element 46 of the connection piece 701 is flexible or breakable after the pocket 2 has been attached to the reservoir 6 .

[0192] In the considered device 700, the connecting element 46 can be bendable. In this case, with each tilt of the dispensing head 10, the connecting element 46 follows the movement of the pocket 2 and does not break. The pocket 2 is no longer axially aligned with the central axis of the reservoir 6 and with axis A. It should be noted that the pocket 2 can be tilted relative to the stable position 12, but can also be compressed along axis A even in the stable position 12, including in the case of the device 100. This device is configured to dispense a product by tilting the dispensing head 10 relative to the stable position 12, but is also configured to dispense a product by compressing the dispensing head 10 along axis A.

[0193] The reservoir 6 of the device 700 is formed from a single piece. The reservoir 6 and pocket 2 of the device 700 are formed in a single piece.

[0194] The reservoir 6 of the device 700 comprises a reservoir 6 bellows 61. The reservoir 6 of the device 700 therefore comprises two parts: a first part 61 of the reservoir 6, including a bellows 61; and the reservoir 6 has one outer wall including a second part 62 arranged below the bellows 61;

[0195] When the head is in the stable position 12 (FIG. 7), the bellows 61 of the reservoir 6 (preferably cylindrical) is centered on the axis A. The bellows 61 of the reservoir 6 is therefore provided on its outer wall with parallel corrugations 61 running parallel to the axis A, i.e. parallel to the extension direction of the dispensing head 10 when the dispensing head 10 is in the stable position.

[0196] The reservoir 6 , or more precisely the bellows 61 of the reservoir 6 , is configured to compress in a direction parallel to the axis A and in a direction starting from the reservoir 6 towards the pocket 2 .

[0197] The reservoir 6, or more precisely the portion 62 of the reservoir 6, is configured to compress towards the inside of the reservoir 6, preferably in a direction perpendicular to the axis A and in a direction 90 starting from the outer wall of the reservoir 6 towards the axis of the reservoir 6, i.e. the axis A.

[0198] For this purpose, the reservoir 6 has a groove 92 or rigid structure 92 in its outer wall, in particular a portion 62 of the reservoir 6 configured to approach towards the inside of the reservoir 6, and thus the groove 92 is configured to compress the reservoir 6 in a direction perpendicular to the axis A and in the direction 90 whenever the amount of fluid contained in the reservoir 6 decreases.

[0199] The reservoir groove 92 is located below the bellows 61 of the reservoir 6 , more precisely in the portion 62 of the reservoir 6 . The reservoir 6, or more precisely the portion 62 of the reservoir 6, is configured to be compressed by entering inside the reservoir 6 (or more precisely inside the bellows 61), preferably in a direction parallel to the axis A as shown in FIG. 11.

[0200] 11 and 10, the device 700 is in a stable position 12. These figures do not show the locking means 50, the case 70 of the reservoir 6 and the dispensing head 10. The pocket 2 and the reservoir 6 of the device 700 are integral with each other to form a single part, said part being preferably obtained by blow molding or 3D printing.

[0201] 10 and 11 show more precisely the device 700 with the pocket 2 and the inflated reservoir 6 after the device 700 has been depleted or unused.

[0202] Indeed, in Figure 10 we can see that: The upper portion 61 (i.e., the bellows 61 of the reservoir 6), which includes corrugations parallel to the central axis of the device 1000, is compressed. In Fig. 10, the spacing between the corrugations of the reservoir 6 is reduced compared to Figs. 7 to 9. Therefore, the length of the bellows 61 of the reservoir 6 in Fig. 10 is shorter than the length of the bellows 61 of the reservoir 6 in Figs. 7 to 9. Therefore, the bellows 61 of the reservoir 6 is compressed. The lower portion 62 has smooth walls but is structured by reinforcements 92, also called grooves 92, which allow this portion 62 of the reservoir 6 to deform radially in order to avoid folding, e.g. pinching, of the wall of the reservoir 6. The shape of the longitudinal "embossed" reinforcements 92 is shown in the cross section of portion 62 of the reservoir 6 in Figure 12.

[0203] 10 shows the collapsed shape of reservoir 6 after several dispenses of fluid. Device 700 is not yet fully depleted and there is still fluid remaining in pocket 2 and reservoir 6 of device 700.

[0204] In Figure 11, use of the device 700 has been completed and the reservoir 6 of the device 700 no longer contains any fluid. A certain amount may remain in the pocket 2. 11, the spacing between the corrugations of the reservoir 6 is the same as the spacing between the corrugations of the reservoir 6 in FIG.

[0205] In device 700 , if reservoir 6 , and in particular portion 61 of reservoir 6 , has an outer diameter that is larger than the outer diameter of portion 62 of reservoir 6 , portion 62 is configured to fit back inside reservoir 6 .

[0206] Thus, with each tilt of the dispensing head 10, the internal volume of the reservoir 6 is reduced, preferably compressed, so that the lower portion 62 of the reservoir 6 approaches the upper portion 61 of the reservoir 6 and / or is radially compressed on the portion 62.

[0207] In fact, in FIG. 11, the lower part 62 of the reservoir 6 is compressed and folded inside the upper part 61 of the reservoir 6 in order to optimize the evacuation of the fluid contained in the reservoir 6 .

[0208] 13 to 16 show another embodiment of a device for dispensing fluids, device 1300. Only the differences from device 700 will be described. The distribution valve 28 of the device 1300 is the same as the distribution valve of the device 700 .

[0209] Device 1300 is - a reservoir 6 arranged in a rigid case 70; - a pocket 2 carried by a reservoir 6; - a dispensing head 10 carried in a pocket 2; 13 to 16, a cover 94, a rigid cover 94 placed on the pocket 2; a dispensing button 72 forming part of the dispensing head 10; - Dispensing button 72, cover 94, dispensing head 10, pocket 2 and cap 74 covering reservoir 6.

[0210] The cap 74 is configured to fit onto the rigid casing 70 when the device 1300 is no longer being used to dispense fluids. The entire internal volume of the reservoir 6 is contained within the rigid casing 70. The rigid case 70 has an inner wall 701 . The rigid case 70 may be made of metal and / or glass and / or wood. The device 1300 (more precisely the head 10) is provided with a position of maximum tilt.

[0211] The device 1300 includes a cover 94 configured to limit and / or prevent tilting of the dispensing head 10 beyond the position of maximum tilt. Thus, the cover 94 prevents tilting of the dispensing head 10 when the dispensing head reaches the position of maximum tilt. The cover 94 is provided with means 104 for screwing the cover 94 onto the rigid case 70 , thus allowing the dispensing head 10 , pocket 2 and reservoir to remain fixed to the rigid case 70 .

[0212] The cover 94, with respect to the device 700, has an opening arranged on the central axis of the cover 94, said axis being collinear with the axis A. The opening in the cover 94 is arranged to allow the dispensing head 10 to pass through. The diameter of the opening in the cover 94 is therefore larger than the diameter of the dispensing head 10. The maximum tilt position of the dispensing head 10 is given by the diameter of the opening in the cover. In a variant of the device 1300, the diameter of the opening in the cover 94 is arranged so as not to stop the tilting of the dispensing head 10.

[0213] The dispenser buttons 72, 101 of the head 10 have an outer wall and an inner wall. The dispensing head 10 is provided on its outer wall with screwing means 106 for screwing the part 102 of the dispensing head 10 comprising the channel 20 onto the dispensing button 72 , typically onto the inner wall of the dispensing button 72 .

[0214] The dispense button 72 further includes an opening 73 disposed in the top wall of the dispense button 72 and passing through the outer and inner walls of the dispense button 72. The opening 73 is configured to be centered over the orifice 24 of the dispense head 10 when the device 1300 is assembled, i.e., when the dispense button 72, cover 94, dispense head 10, pocket 2, reservoir 6, and rigid case 70 are assembled together. Thus, when the part 102 is secured to the dispense button 72, fluid can pass through the opening 73 in the dispense button 72 of the head 10 and exit through the orifice 24.

[0215] The dispense button 72 is fixed by screwing means 106 so that the outer wall of the dispense button 72 of the head is provided with a contact surface 26 . The dispense button 72 is fixed to a part 102 which follows the position, ie the stable position 12 and / or the tilted position 14 of the assembly of the dispense head 10 .

[0216] The reservoir 6 includes a cap 96 configured to at least partially define the reservoir 6. The cap 96 has two parts: - Platform 98, and a trunk 76 housed in the reservoir 6 and carrying a platform 98 for the cap 96; The platform 98 and the trunk 76 are one piece.

[0217] The trunk 76 is cylindrical and is centered on the central axis of the distribution channel 20, which is coaxial with axis A. Thus, the trunk 76 and the distribution channel 20 are coaxial at position 12. The trunk 76 is also centered on the central axis of the deformable casing 56 of the reservoir 6. The platform 98 of the cap 96 comprises at its ends a flat rigid wall directed towards the interior of the reservoir 6 and having two edges 981 formed by corners.

[0218] The reservoir 6 comprises a deformable casing 56 that at least partially defines an internal volume of the reservoir 6, said deformable casing 56 comprising a radially continuous corrugation 562 about an axis A.

[0219] The deformable casing 56 of the reservoir 6 therefore comprises three parts: an upper portion 561, which is provided with an edge, preferably smooth, running along the inner wall 701 of the rigid case 70; a lower portion 562, which is provided with a radially continuous corrugation 562; and a bottom part 563, which carries the corrugations 562 and is provided with a filling opening 82;

[0220] The lower portion 563 is a rigid wall and is stiffer than the lower portion 562 including the corrugations 562 . Fill opening 82 has a central axis that is centered on the central axis (i.e., axis A) of reservoir 6. Thus, fill opening 82 and reservoir 6 are coaxial, and fill opening 82 and trunk 76 of cap 96 of reservoir 6 are coaxial.

[0221] Fill opening 82 is circular in shape and has a diameter equal to the outer diameter of trunk 76 .

[0222] Fill opening 82 is configured to fit and / or embed together with trunk 76 of cap 96 of reservoir 6 during assembly of device 1300, more precisely during assembly of reservoir 6. In this way, trunk 76 is configured to trap air bubbles (not shown) during assembly of trunk 76 in fill opening 82 after filling reservoir 6 with fluid, said air bubbles being trapped within trunk 76. This prevents the air bubbles from rising again into reservoir 6 and then pocket 2.

[0223] The portion 563 of the reservoir 6 containing the fill opening 82 is provided with a sealing means 821. The sealing means 821 comprises a sealing skirt 821.

[0224] The filling opening 82 is configured to be closed by a cap 96, in particular the trunk 76, of the reservoir 6. A portion 563 of the deformable casing 56 of the reservoir 6 is configured to be detached from the cover 94, in particular from the trunk 76, for example by means of a suction cup during the filling phase of the device 1300.

[0225] The deformable wall 56 of the reservoir is fixed or welded to the cover 94 of the reservoir 6 . The corner edge 981 of the platform 98 of the reservoir 6 is configured to hold the deformable wall 56 of the reservoir 6. In particular, the corner edge 981 of the platform 98 of the reservoir 6 presses the upper end of the wall 56 against the interior wall 701 of the rigid case 70.

[0226] The deformable casing 56 is configured to fold back towards the platform 98 each time the volume of the deformable casing 56 decreases. The deformable casing 56 is configured to collapse around the trunk 76 whenever the volume of the deformable casing 56 decreases.

[0227] 13 and 14, the device 1300 is completely filled. The reservoir 6 contains all the fluid available from the device 1300 and is therefore at its maximum internal volume. In this case, the continuous corrugations 562 of the deformable casing 56 of the reservoir 6 are radial to the central axis of the trunk 76, i.e., about axis A.

[0228] 15, almost all of the fluid contained in the deformable casing 56 of the reservoir 6 has been dispensed. The deformable casing 56 has collapsed toward the platform 98. Thus, the corrugations 562 of the deformable casing 56, which are initially radial about the axis of the trunk 76, move toward the trunk 76, thus forming the corrugations 562.

[0229] The smooth edge 561 of the deformable casing 56, which is initially pressed against the inner wall 701 of the rigid case 70, is configured to approach the reservoir 6, particularly the cap 96 of the platform 98, each time the volume of liquid contained in the reservoir 6 decreases.

[0230] With this configuration, the amount of fluid contained in the reservoir 6 is consumed as much as possible, by increasing the area of ​​the deformable wall 56 of the reservoir 6, in particular the area of ​​the corrugations 562 of the deformable wall 56; and With each reduction in the volume of the casing of the reservoir 6, it is possible to optimize the return of fluid by configuring the deformable wall 56 to match as closely as possible the rigid shape of the reservoir, and in particular the cover 96.

[0231] The device 1300 for dispensing a fluid comprises a pocket 2 having an interior volume configured to contain a fluid, the interior volume being defined at least in part by a deformable wall 4 .

[0232] The pocket 2 is formed by a bottom wall 21 and a flexible deformable wall 4 . Walls 21 and 4 face each other. The wall 4 forms a concave skirt and has an upper portion and a lower portion. The deformable wall 4 (more precisely its lower part) is fixed or welded to the bottom wall 21 .

[0233] The bottom wall 21 preferably has a planar or substantially planar shape. The bottom wall 21 is a rigid wall, i.e. it is more rigid than the wall 4 . 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 . The walls 21 and 4 are made, for example, of polypropylene (PP).

[0234] The deformable wall 4 is preferably made of PP with a polymer or plastomer additive (such as Vistamaxx™ 6202) to reduce the hardness of the wall 4 so that the hardness is less than 80 Shore D. This avoids the wall 4 being too thin or weak.

[0235] 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 the device 1300, the bottom wall 21 and the platform 98 are in a single piece. The supply opening 8 is located at the bottom wall 21 and passes through the bottom wall 21 and the platform 98 to connect the reservoir 6 to the pocket 2 .

[0236] The deformable wall 4 of the pocket 2 includes weakened zones 78 and / or joints 78 that are configured to allow a tilted, but stable, tilted position 14 of the dispensing head 10 in the absence of an external force 18. These weakened zones 78 correspond to zones 78 in the deformable wall of the pocket 2 that are thinner compared to the rest of the deformable wall 4 .

[0237] When the dispensing head 10 is in the tilted position 14, the weakened zone 78 of the deformable wall 4 is configured to press against and / or approach the bottom wall 21 of the pocket 2, thereby forming a preferred (and stable) tilted position 14 of the dispensing head 10.

[0238] The device 1300 will maintain this tilted but stable stable position 14 of the dispensing head 10 unless a secondary external force is applied to the contact surface 26. The secondary external force must be applied on the opposite side to the side on which the external force 18 was applied to place the dispensing head 10 in its tilted position 14.

[0239] In all cases, the deformation force is more difficult to reach the desired position at the beginning of the tilt, or automatically within 5 degrees of the correct angle, thus allowing for dosing.

[0240] 15, an external force 18 relative to the central axis of the dispensing channel 20 is applied to the right side of the dispensing head 10. The dispensing head 10 and pocket 2 remain in tilted position 14 but are stabilized to the left. Therefore, to return the device 1300 to its initial stable position, i.e., before the external force 18 was exerted (i.e., coaxiality between the dispensing head 10 and the reservoir 6), a secondary external force must be applied to the left side of the dispensing head 10, i.e., the side with tilted position 14.

[0241] 16 , in one embodiment of a method for assembling device 1300, deformable wall 56 of reservoir 6, in particular portion 563, is pulled outward to release filling opening 82. Reservoir 6 is filled with fluid and closed by cap 96 by pushing deformable wall 56 of reservoir 6 towards the interior of reservoir 6, in particular portion 563 (a movement opposite to the previous one). Reservoir 6 is provided with a sealing skirt, which makes it possible to seal portion 563, i.e. the bottom of reservoir 6 attached to cap 96. Deformable wall 56 of reservoir 6, including said skirt, is made of the same material.

[0242] The skirt is stiffer than the portion 562 of the deformable wall 56 . When manufacturing device 1300 by blow molding, the thickness of deformable wall 56 can be reduced, so the sealing skirt can be made of a more rigid material.

[0243] When manufacturing the device 1300 by injection molding, it is possible to work with a thickness of the deformable wall varying between 0.4 mm and 0.5 mm. In this case, a flexible material is used to design the reservoir, and in particular the deformable wall 56. The sealing skirt is designed from a material that is more rigid than the material used for the deformable wall 56.

[0244] In a variation of the device 100, 700, 1300, the two fluids may be contained in two separate reservoirs 6. The device 100, 700, 1300 may have a preferential tilt for each of the fluids and / or a third tilt configured to mix the fluids. The third tilt may be, for example, due to a pressing force 18 parallel to the extension direction of the dispensing head 10 or collinear with the axis A.

[0245] 17 and 18 show another embodiment of a device for dispensing fluids, device 1700. Only the differences with devices 100, 700 and 1300 will be described.

[0246] The device 1700 for dispensing fluids comprises a pocket 2 and an orifice 24 for: a pocket 2, comprising an inner pocket 21 and an outer pocket 22, said inner pocket 21 being at least partially arranged within the outer pocket 22, said inner pocket 21 and outer pocket 22 each having an internal volume configured to contain a fluid, said internal volume of the outer pocket 22 being at least partially defined by a movable wall 3, said movable wall 3 being configured to reduce, by deformation and / or movement, the internal volumes of the inner pocket 21 and the outer pocket 22 under the action of a pressing force 18; an orifice 24, which is configured to dispense a fluid;

[0247] The interior volume of the inner pocket 21 is defined at least in part by: - a piston 5, which is integral with a connecting wall 7 that at least partially defines the internal volume of the outer pocket 22; a housing 9, which is the housing of the piston 5 and is configured to accommodate the piston 5 and to guide the piston 5 during its axial movement 11 within the housing;

[0248] The device 1700 is configured to direct the fluid according to a path comprising the following route: - Route 1: o from the inside of the outer pocket 22 to the inside of the inner pocket 21 and / or the piston 5 in the inner pocket 21 through at least one connecting hole 13 connecting the internal volume of the outer pocket 22 to the inside of the inner pocket 21 and / or the piston 5, and a second route, from the inner pocket 21 and / or from the inside of the piston 5, leading to the orifice 24;

[0249] The device 1700 also includes a supply opening 8 that connects the reservoir 6 to the interior volume of the outer pocket 22 .

[0250] From FIG. 17, the term volume of the pocket 2 means the sum of the internal volume of the inner pocket 21 and the internal volume of the outer pocket 22. The pocket 2 is defined by a movable wall 3, a connecting wall 7 and a bottom wall 21.

[0251] The device 1700 further comprises a brake means 15, which is configured to stop the axial movement 11 of the piston 5 within the housing 9, which reduces the internal volume of the inner pocket 21 and the outer pocket 22, when the movable wall 3 is subjected to a pressing force 18 (previously referred to as the external force 18) that is less than the threshold force. The device 1700 comprises a means for "free" displacement, during which the internal volume of the pocket 2 is reduced without overpressure constraint of the liquid during closure of the connecting hole 13 (which functions as an inlet valve). During this step, the liquid is pumped through the opening 8 into the reservoir 6, which deforms the pocket 2 and causes friction of the piston 5 against the inner wall of the housing 9 and / or the guiding means 65 for the piston 5 within the housing 9, which allows for the promotion / propulsion of the pressing surface 26. Finally, the device 1700 comprises a means for increasing the pressure: as soon as the connecting hole 13 is closed, the piston compresses the product in the inner pocket 21. Preferably, the pressing force during the pressure increase is less than the threshold force.

[0252] Thus, the piston 5 and housing 9 are configured to allow three stages of movement of the piston 5 within the housing 9 during application of force 18: 1 a stop phase, in which the piston 5 does not move beyond the means 15 as long as the force 18 is smaller than the threshold force, and then exceeds the means 15 as soon as the force 18 increases beyond this threshold force; 2. Free movement phase, the free movement of the piston 5 in the housing 9 after it has passed over the means 15 (acceleration in the space between the piston and the housing during the closing of the opening 13), typically a translation of the piston 5 in its housing 9 of at least 0.5 mm or 1 mm, capable of imparting an impulse or acceleration to a threshold force (kinetic energy); 3. Compression stage, in which the pressure in the pocket 21 after closing the opening 13 is increased.

[0253] The most important are stages 2 and 3, and stage 1 may be optionally restored by a return force due to deformation or displacement of the outer pocket. The axial movement 11 of the piston 5 is along the central axis of the piston 5 .

[0254] The device 1700 has a pressing surface 26, also called a contact surface 26, which is configured to deform and move the movable wall 3 by the dispensing head 10 under the action of a pressing force 18, thereby reducing the internal volume of the inner pocket 21 and the outer pocket 22.

[0255] The pressure surface 26 is integral with the dispensing head 10 and preferably comprises at least a portion of the dispensing head 10 . The device 1700 includes an orifice 24 . The orifice 24 opens to the outside of the device 1700 . The orifice 24 is on the dispensing head 10 .

[0256] Orifice 24 is configured to dispense fluid in a direction substantially perpendicular to the direction of movement of dispensing head 10 . The dispensing head 10 is adapted to undergo a translational movement. Orifice 24 is configured to distribute fluid in a direction substantially parallel to the elongation axis of distribution channel 20 .

[0257] The device 1700 comprises a dispensing opening 22 connecting the pocket 2 to the dispensing channel 20 . The distribution valve 28 is inside the distribution channel 20 of the device 1700 . The distribution channel 20 of the device 1700 comprises an internal volume configured solely to contain (or accommodate) the distribution valve 28. Thus, only the distribution valve 28 is provided in the distribution channel 20.

[0258] The device 1700 comprises a distribution valve 28 which is arranged in the distribution channel 20 and which, in an open state, allows fluid to pass from the inside of the inner pocket 21 to the orifice 24 through the distribution opening 22 and the distribution channel 20 (particularly through the housing 80), and which, in a closed state, does not allow fluid to pass from the inside of the inner pocket 21 to the orifice 24 through the distribution opening 22 and the distribution channel 20 (precisely the housing 80).

[0259] The dispensing head 10 is integral with the bottom wall 21 by overmolding or bi-injecting the dispensing head 10 onto the bottom wall 21 . The dispensing channel 20 therefore comprises and / or is formed by the upper wall of the dispensing head 10 and the bottom wall 21 .

[0260] The dispensing head 10 includes a sprayer 10 . The dispensing head 10 is arranged outside the pocket 2 . The dispensing head 10 is configured to move at least in a translational motion by applying pressure 18 to the pressure surface 26. The translational motion of the dispensing head 10 is in the same direction as but opposite to the axial movement 11 of the piston 5.

[0261] A portion of the dispensing head 10 is configured to slide at least partially along the outer wall of the outer pocket 22 so as to move and / or deform the movable wall 3 of the outer pocket 22 under the action of the pressing force 18 .

[0262] The pressure surface 26 is configured to reduce the internal volume of the inner pocket 21 and the outer pocket 22 when pressure is applied by deforming the movable wall 3, more precisely by squeezing it in the direction of the wall of the connecting wall 7. The deformable movable wall 3 has a shape memory, and when the wall 3 is not subjected to an external stress, it remains in the configuration in which the volume of the inner pocket 21 and the outer pocket 22 is maximized, as shown in Figure 17, or returns to that configuration to maximize the volume.

[0263] The pressure surface 26 is accessible by the user's hand from the outside of the device 1700 and is 10 mm 2 has a minimum surface area of The housing 9 of the piston 5 is at least partially defined by a bottom wall 21. A part of the bottom wall 21, i.e. the part of the bottom wall 21 in contact with the distribution channel 20, is integral with the housing 9 of the piston 5.

[0264] The bottom wall 21 at least partially defines the volume of the outer pocket 22 . The connecting wall 7 at least partially defines the piston 5 . The bottom wall 21 at least partially defines the housing 9 of the piston 5 . The distance between the wall 7 and the wall 21 defines the volume of the inner pocket 21 .

[0265] In the device 1700 the braking means 15 are integral with the housing 9 of the piston 5 and preferably comprise at least one tongue 17 inclined towards the inside of the housing 9 . The device 1700 includes a tongue 17 .

[0266] In device 1700, the movable wall 3 is separated from a connecting wall 7. The connecting wall 7 is configured to define the interior volume of the pocket 2 and the interior volume of the casing of the reservoir 6. The connecting wall 7 comprises a substantially planar shape. In the case of the device 1700, the connecting wall 7 is rigid, i.e. more rigid than the deformable wall 3 of the pocket 2.

[0267] The movable wall 3 is arranged between the bottom wall 21 and the connecting wall 7 . The connecting wall 7 has the same rigidity as the bottom wall 21 . The connecting wall 7 is fixed to the movable wall 3 of the pocket 2 . The movable wall 3 is fixed to the bottom wall 21 of the pocket 2. The deformable wall 3 is flexible. The movable wall 3 is usually made of TPO.

[0268] The piston 5 is partially defined by a connecting wall 7 . The piston 5 is fixed to the connecting wall 7 by welding and / or molding. The piston 5 is integral with the flat part of the connecting wall 7 . The connecting wall 7 is made of PP. The piston 5 is made of the same material as the connecting wall 7. In the device 1700, the piston 5 and the connecting wall 7 form a single piece.

[0269] The piston 5 is therefore arranged between the flat portion of the connecting wall 7 and the housing 9 of the piston 5 . The housing 9 of the piston 5 is arranged between the piston 5 and the distribution channel 20 . The piston 5 is hollow and cylindrical with an outer diameter defined by a connecting wall 7 .

[0270] The outer diameter of the piston 5 increases at the end of the piston 5, facing the housing 9 of the piston 5. This configuration makes it possible to have a sealed linear annular contact during the compression phase, i.e. when the dispensing head 10 is driven by a translational movement that reduces the volume of the pocket 2. This makes it possible, among other things, to improve the sealing performance of the device 1700. A low rotational movement (for example, of the ball joint type) can optionally complement this translational movement.

[0271] The device 1700 further comprises a supply opening 8 connecting the supply channel 78 and / or reservoir 6 to the volume of the outer pocket 22 . The device 1700 comprises a reservoir 6. The reservoir 6 is in communication with the outer pocket 22 via a dispensing opening 8. The reservoir 6 comprises an interior volume configured to contain a fluid.

[0272] The device 1700 is configured to guide the fluid along the second route in such a way that, with each pressing force 18 on the movable wall 3 that is greater than a threshold force and / or with each decrease in the internal volume of the inner pocket 21 and the outer pocket 22, the connecting hole 13 closes, thus causing a 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. The connecting hole 13 closes after (sufficient) pressure is applied to the movable wall 3 and thus forms a supply valve for the inner pocket 21 .

[0273] The device 1700 is configured to guide a fluid along a first route, the guidance comprising: after the end of each pressing force 18 greater than the threshold force, i.e. when the movable wall 3 is no longer under the action of a pressing force 18 greater than the threshold force, and / or With each increase in the internal volume of the inner pocket 21 and the outer pocket 22, the connecting hole 13 is opened, i.e. the piston 5 arranged in the housing 9 moves back into the outer pocket 22.

[0274] The connection hole 13 is - formed at the connection 19 between one end of the piston 5 and one end of the housing 9 of the piston 5; and / or - the piston 5 is provided with a hole 23 arranged in the housing 9;

[0275] The connection hole 13 is - Closes while piston 5 is moving, reducing the internal volume of pocket 2, - configured to open during movement of the piston 5 to increase the internal volume of the pocket 2; Note that this embodiment includes a cavity 139 . This cavity 139 corresponds to the internal volume of the piston 5 .

[0276] This cavity 139 is not closed and the fluid contained in the reservoir 6 can circulate from the reservoir 6 to the cavity 139 and / or from the cavity 139 to the orifice 24 . However, most (more than 50%), or even all, of the volume of cavity 139 is dead volume, i.e., fluid can flow from reservoir 6 to orifice 24 without impeding or creating fluid movement within cavity 139.

[0277] Furthermore, it should be noted that the internal volume of cavity 139 is greater than the maximum volume of fluid that can exit through orifice 24 when piston 5 enters its housing 11 (sic).

[0278] 19-22 show another embodiment of a device for dispensing fluids, device 1900. Only the differences from device 1700 will be described.

[0279] The device 1900 comprises a dispensing head 10 extending longitudinally over a particular length connecting the dispensing opening 22 to the orifice 24 .

[0280] The dispensing head 10 is substantially (+ / - 20mm) at the extension of the reservoir (end of the reservoir) and the direction of dispensing is substantially opposite to the direction of extension of the reservoir at + / - 20 degrees. The device 1900 is configured to operate in all positions, particularly with the head up or down relative to the Earth's gravity.

[0281] The dispensing head 10 is a straight section extending longitudinally. The dispensing head 10 comprises a dispensing channel 20. The dispensing channel is a cylinder extending longitudinally over the entire length of the dispensing head 10, in the same longitudinal direction as the dispensing head 10.

[0282] The dispensing head 10 comprises a flange 45. The flange 45 is configured to secure the reservoir 6 to the bottom wall 21. The axis of the distribution channel 20 is aligned with the central axis of the distribution head 10, ie the channel 20 and head 10 are coaxial.

[0283] 19 and 22, device 1900 includes a reservoir 6 having a deformable casing 56. The deformable casing 56 of reservoir 6 is configured to define a pocket 2. The device 1900 comprises a dispensing opening 22 connecting the pocket 2 , in particular the inner pocket 21 , to the dispensing channel 20 .

[0284] The braking means 15 are integral with the housing 9 and preferably comprise at least one tongue 17 inclined towards the outside of the piston 5 . The connecting hole 13 comprises a hole 23 formed in the housing 9 of the piston 5 .

[0285] The connection hole 13 is - Closes while piston 5 is moving, reducing the internal volume of pocket 2, - configured to open during movement of the piston 5 to increase the internal volume of the pocket 2;

[0286] The device 1900 further comprises a distribution channel 20 configured to direct fluid exiting the internal pocket 21 towards an orifice 24 . The device 1900 includes a distribution valve 28 disposed in the distribution channel 20 and configured to direct fluid from the internal pocket 21 to the orifice 24 .

[0287] The device 1900 may further include: - a distribution valve 28, and a mixer 25 configured to receive the different separate fluid flows (coming from the pocket 2) and mix them in an atomized manner at the orifice 24; The flows may originate from the same fluid and / or different fluids.

[0288] One end or portion (more precisely portion 283) of distribution valve 28 is integral with rod 27 configured to be submerged in mixer 25, which forms different channels 59 configured to direct different separate fluid flows to mixer 25.

[0289] The dispensing valve 28 includes a stiffener 49 configured to prevent bending or (excessive) deformation of the valve 28 when the valve 28 is inserted into the channel 20 . Rod 27 is the structural element used to generate the spray (ie, the atomizer).

[0290] The mixer 25 has three cavities 57 arranged within the distribution channel 20 (the housing 80 of the valve 28) that converge toward the orifice 24. The orifice 24 is closed by the front face of the rod 27 (which forms the cavity 57 of the mixer 25 connected to the channels 59). These cavities 57 are provided by three channels 59, which are formed by the sidewall of the rod 27 and the triangular holes in the distribution element 25, spaced apart from one another and configured to define the three channels 59. In a variant, there are at least two cavities 57 and at least two channels 59. The bottom of the element 25 has multiple blades to increase the pressure in the orifice 24 and generate vortices. These channels 59 are therefore oriented toward the same center to generate vortices. The grooves in the inner walls of the channels 20 are extensions of the channels 59 and impart a rotational motion to the fluid flowing therethrough.

[0291] The channel 59 and the cavity 57 (located in the extension of the channel 59 ) are configured to create a vortex at the orifice 24 that includes the flow coming from the pocket 2 .

[0292] The movable wall 3 is a deformable wall. The movable wall 3 is provided with a connecting wall 7. More precisely, there is a material continuity between the movable wall 3 and the connecting wall 7. The movable wall 3 and the connecting wall 7 are similar, i.e. made of the same material. The walls 3, 7 are made, for example, of polypropylene.

[0293] The movable wall 3 at least partially defines the volume of the outer pocket 22. The movable wall 3 forms a dome, i.e. the movable wall 3 has a portion that is concave relative to the bottom wall 21. The inner pocket 21 has a portion defined by a bottom wall 21. The bottom wall 21 comprises a housing 9 for the piston 5. The housing 9 for the piston 5 is at least partially defined by the bottom wall 21.

[0294] The outer pocket 22 comprises a portion defined by a bottom wall 21. The bottom wall 21 comprises a supply opening 8 for connecting the pocket 2 to the reservoir 6, more precisely for connecting the outer pocket 22 to the reservoir 6. The bottom wall 21 preferably has a planar or substantially planar shape to which the movable wall 3 is fixed.

[0295] The movable wall 3 is fixed or welded to the bottom wall 21, in particular to the plane of the bottom wall 21. The bottom wall 21 is a rigid wall, i.e. it is more rigid than the movable wall 3 . The movable wall 3 is, for example, a thin wall, and the bottom wall 21 is, for example, a wall that is thicker than the movable wall 3.

[0296] The movable wall 3 is preferably made of PP containing a polymer or plastomer additive (e.g. Vistamaxx™ 6202) to reduce its hardness so that the hardness of the movable wall 3 is less than 80 Shore D. Excessive thinness and weakness of the movable wall 3 is avoided.

[0297] The pocket 2, or more precisely the bottom wall 21, defines at least one housing 39 adapted to accommodate means 31 for fixing the reservoir 6 to the pocket 2. The reservoir 6 can thus be snapped into the bottom wall 21. The reservoir 6 is held by clamping by the dispensing part 10. In another embodiment, not shown, the dispensing part 10 is provided with an external end piece, onto which the reservoir 6 is attached at its neck. This neck is traction-limited by the end piece, and optionally, an outer ring may be crimped onto the outside of the neck by moving along it to improve sealing.

[0298] The pocket 2 comprises a housing 41 which is provided within the pocket 2 and which is configured to mount and / or fit the dispensing head 10 to the pocket 2, more precisely to the bottom wall 21.

[0299] The device 1900 comprises a reservoir 6 in communication with the outer pocket 22 via a supply opening 8, the reservoir 6 having an internal volume configured to contain a fluid, the internal volume being at least partially defined by a deformable casing 56.

[0300] The deformable casing 56 of the reservoir is made of TPO or PE or PP. The deformable casing 56 comprises a pressure surface 26 that is configured to receive a pressure force 18 from the outside of the device 1900 , external to the device 1900 and perpendicular to the longitudinal direction of the distribution channel 20 .

[0301] Thus, for each pressing force 18 greater than the threshold force, the piston 5 or a part of the piston 5 is initially contained in the internal volume of the outer pocket 22 and moves into the housing 9 of the piston 5 . The reservoir 6 is therefore configured to reduce its internal volume after each opening of the supply valve 38 .

[0302] The reservoir 6, in particular the deformable wall 56 of the reservoir 6, is provided with means 31 for fixing the reservoir 6 to the pocket 2, in particular means 31 for fixing the reservoir 6 to the bottom wall 21, in particular the bottom wall 21 comprising part of the inner pocket 21.

[0303] The means 31 for fixing the pocket 2 to the reservoir 6 are integral with the reservoir 6, in particular with the deformable wall 56 and with the reservoir's retaining surface 33. The means 31 are thicker than the remainder of the deformable wall 56 of the reservoir 6.

[0304] These means for fixing 31 are rigid parts of the deformable wall 56 , that is to say they are more rigid than the other parts of the deformable wall 56 of the reservoir 6 . The retaining surface 33 is flat and is a rigid part of the deformable wall 56 , ie it is more rigid than the other parts of the deformable wall 56 of the reservoir 6 .

[0305] The means 31 of the deformable wall 56 comprises at least one corner edge 31 for fitting into the inner pocket 21. In the case of the device 1900, the deformable wall comprises two corner edges 31 for fitting the reservoir 6 into the pocket 2, in particular for fixing the reservoir 6 to the bottom wall 21, in particular to the bottom wall 21 comprising the inner pocket 21.

[0306] The flange 45 is therefore configured to engage and / or secure the edge 31 to the corner of the reservoir 6 of the pocket 2 by applying an attachment pressure (not shown) to the retaining surface 53 of the reservoir 6 . The device 1900 may be a single material refill, typically of the same family of polyolefin compounds.

[0307] FIG. 20 shows an exploded view of the device 1900 without the reservoir 6 yet. The outer pocket 22 comprises 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 defined when the movable wall 3 is fixed to the bottom wall 21.

[0308] The movable wall 3 includes at least one pin 35, four in the device 1900, for accurately positioning and securing the movable wall 3 to the bottom wall 21. The bottom wall includes at least one hole 37, four in total in FIG. 20, for receiving the at least one pin 35 of the movable wall 3.

[0309] In one embodiment of a method for assembling the device 1900, the dispensing valve 28 is attached to the dispensing head 10, in particular to the dispensing channel 20. The dispensing head 10 is then fitted into the housing 41 of the pocket 2 (in particular to the bottom wall 21 including part of the inner pocket 21). The movable wall 3 is then assembled to the bottom wall 21 of the pocket 2 to form and / or define the inner pocket 21 and the outer pocket 22. The movable wall 3 must be fixed to the bottom wall 21.

[0310] In the case of a method involving a device 100 including a reservoir 6, the movable wall 3 must be fixed to the bottom wall 21. The reservoir 6 is thus clamped between the dispensing head 10 and the pocket 2 at the flange 45.

[0311] along the translation axis of the piston 5 in the housing 9, starting from the wall 3, the housing 9 extends beyond the channel of the inner pocket 21 connecting the opening 13 to the valve 28, and / or Note that the valve 28 is not arranged along this axis.

[0312] Pocket 21 is a first part, which is inside the pocket 22, and It should be noted that there is a second portion, which forms a corner or bend with respect to the first portion and which is located below the pocket 22 .

[0313] Referring to FIG. 21, the valve 28 may be retained within the channel 10 by ribs 67 . The movable wall 3 has the technical function of a spring or return means that exerts a force pulling the piston 5 towards the outside of the housing 9 .

[0314] In FIG. 19 it can be seen that the piston 5 is at least partly formed by at least a part of the movable wall 3 . The piston 5 is in direct contact with the wall forming the pressing surface 26. In a variant not shown, in which the casing 56 does not surround the pocket 2 but only forms a reservoir outside the pocket 2, the piston 5 is at least partly formed by at least a part of the pressing surface 26.

[0315] Figures 23 to 25 show another embodiment of a device for dispensing fluids, device 2300. Only the differences from device 1900 will be described.

[0316] The dispensing head 10 of device 2300 does not have a flange 45 but retains the same shape and same direction of extension. The dispensing head 10 is therefore configured to be nested and fixedly held within the housing 41 of the pocket 2 .

[0317] The device 2300 further comprises a cap 74 configured to be placed and / or fitted onto the dispensing head 10. When the cap 74 is secured to the dispensing head 10, fluid cannot exit through the orifice 24 of the device. The cap 74 is configured to be airtight when pressed against the orifice 24 for the priming stage during vacuum filling. The cap 74 is made of plastic.

[0318] As in device 1900, the movable wall 3 is provided with a connecting wall 7. There is a continuity of material between the movable wall 3 and the connecting wall 7. However, the movable wall 3 is not made of the same material as the connecting wall 7 . The movable wall 3 is made of PP, PE or TPO. The connecting wall 7 is made of PP, PE or TPO. The connecting wall 7 is rigid, i.e. more rigid than the movable wall 3 .

[0319] The movable wall 3 and the deformable wall 56 of the reservoir 6 are similar and made of the same material. There is a material continuity between the movable wall 3 and the deformable wall 56. They are formed by a single part and have two welding or fastening areas: a welding or fastening area 431 for welding or fastening the wall 3 to the wall 21, and a welding or fastening area 432 for welding or fastening the wall 56 to the wall 211.

[0320] In fact, the device 2300 comprises a plate 43. The plate 43 is substantially planar. The plate 43 comprises the movable wall 3, the connecting wall with the piston 5 and the deformable wall 56 of the reservoir 6. The plate 43 therefore comprises portions with different stiffnesses. The plate 43 is configured to be placed on the bottom wall 21 of the pocket 2 .

[0321] The plate 43 is configured to be fixed to the bottom wall 21 of the pocket 2, more precisely to the upper surface 211 of the bottom wall 21. The top surface 211 of the bottom wall 21 is substantially flat. The plate 43 is fitted and / or welded to the bottom wall 21 of the pocket 2 .

[0322] The volume of reservoir 6 is between bottom wall 21 of pocket 2 and deformable casing 56. Deformable casing 56 of reservoir 6 includes a continuous radial corrugation 562 about axis B. Axis B is perpendicular to plane 47 of walls 43 and / or 56.

[0323] The deformable casing 56 is substantially contained in a plane 47 in which the corrugations 562 vibrate, and the axis B is substantially perpendicular to this plane 47. The plane 47 is substantially parallel to the upper surface 211 of the bottom wall 21.

[0324] Axis B is substantially perpendicular to the direction of extension of dispensing head 10 . Waveform 562 has an oscillating amplitude, which is preferably constant. The amplitude of vibration of the waveform 562 is between the plane 47 and the upper surface 211 of the bottom wall 21 to which the plate 43 is fixed.

[0325] In one embodiment of a method for assembling the device 2300, the dispensing valve 28 is attached to the dispensing head 10. The dispensing head 10 is then attached to the housing 41 of the pocket 2 (particularly the bottom wall 21 comprising part of the inner pocket 21). When the device 2300 is not in use, the cap 74 is placed on one side of the dispensing head 10 comprising the orifice 24. The plate 43 is then assembled to the bottom wall 21 and its upper surface 211.

[0326] The plate 43 must be fixed to the bottom wall 21 . The method of assembling the device 2300 is performed under vacuum and includes vacuum welding.

[0327] The vacuum assembly process consists of the following sequential steps: - positioning at least a portion of the reservoir 6 and at least a portion of the pocket 2 in a position where the dispensing valve 28, the dispensing head 10 and the cap 74 are assembled thereto; - filling the predetermined internal volume of the reservoir 6 (and preferably the predetermined internal volume of the pocket 2) with the liquid to be dispensed; - closing the reservoir 6 (by the wall 56) and the pocket (by the wall 3), - placing the device according to the invention in the cavity 61, - evacuating the air in the cavity 61 so that the pressure reaches less than 1 bar; - preferably by reducing the volume of cavity 61 (preferably by compressing bellows 63) to bring plate 43 closer to upper surface 211 of bottom wall 21 of pocket 2; and - welding the plate 43 (preferably not by ultrasonic welding means 51, 53) to the upper surface 211 of the bottom wall 21 of the pocket 2 under vacuum, preferably while continuing to bring the plate 43 closer to the upper surface 211 of the bottom wall 21 by reducing the volume of the cavity 61 (preferably by compressing the bellows 63, typically by 0.3 to 0.6 mm);

[0328] Next, a vacuum assembly process involves overpressure of the cavity 61 containing the assembled device 2300 to above 1 bar. The vacuum assembly process of device 2300 is accomplished by vacuum assembly device 2500 shown in FIG. The vacuum assembly device 2500 comprises a sonotron 51 and a booster 53 . The movable wall 3 has the technical function of a spring or return means that exerts a force pulling the piston 5 towards the outside of the housing 9 .

[0329] It should be noted that the piston 5 is at least partially formed by at least a portion of the movable wall 3 . It should be noted that the piston 5 is at least partially formed by at least a part of the pressing surface.

[0330] Alternatively, the device 2300 is placed in a case such as a refill. In this variant, the wall 3 is placed in contact with a button or wall of the case that forms the pressing surface 26. This button is guided by the guiding means of the device to press against the movable surface 3 while being guided in a translational movement parallel to the extension direction of the piston 5.

[0331] Figures 26 to 27 show a seventh embodiment of a device for dispensing fluids, device 3000. Only the differences with the device of Figure 17 will be described.

[0332] The device 3000 for dispensing fluids comprises: a pocket 2 comprising an inner pocket 21 and an outer pocket 22, said inner pocket 21 being at least partially arranged within the outer pocket 22, the inner pocket 21 having an internal volume adapted to contain a fluid and the outer pocket 22 having an internal volume adapted not to contain a fluid, said internal volume of the outer pocket 22 being at least partially a movable wall 3 (preferably a wall integral with the cap 305 with material continuity, more precisely a thin wall (at least twice as thin as the wall thickness of the head 10)), said movable wall 3 being adapted to reduce the internal volume of the inner pocket 21 (and of the outer pocket 22) by deformation and / or movement under the action of a pressing force 18, and an orifice 24 configured to dispense a fluid;

[0333] The interior volume of the inner pocket 21 is defined at least in part by: - a piston 5, which is integral with the connecting wall 7 and which at least partially defines the internal volume of the outer pocket 22; a housing 9, which is the housing of the piston 5 and is configured to accommodate the piston 5 and to guide the piston 5 during its axial movement 11 within the housing; The internal volume of the inner pocket 21 is the internal volume of the housing 9 .

[0334] The device 3000 is configured to guide the fluid along a path that has a route that passes directly from the reservoir 6 and / or head cavity 306 to the interior of the inner pocket 21 without passing through the interior of the outer pocket 22 (connecting hole 13, which connects the internal volume of the outer pocket 22 to the inside of the inner pocket 21 and / or the inside of the piston 5, which is not present in this embodiment).

[0335] The head cavity 306 is the volume within the head 10 that preferably contains the product and faces the reservoir 6 . The head cavity 306 is configured to not experience compression of the fluid. The head cavity 306 is located outside the pocket 21 .

[0336] In the case of FIG. 26, the head cavity 306 corresponds to the internal volume of the piston 5 . The volume of the head cavity 306 is defined by a plane passing through the wall 7 .

[0337] The device 3000 also comprises a supply opening 8 configured at one end of the piston 5 that connects the internal volume of the piston 5 and / or reservoir 6 to the internal volume of the internal pocket 21 and enters the housing 9 . The internal volume of the piston 5 is part of the reservoir 6 .

[0338] 26 and 27, the expression "volume of pocket 2" means the internal volume of inner pocket 21 without the internal volume of outer pocket 22.

[0339] The device 3000 is configured to operate in all positions of the head 10, in particular with the head facing up or down relative to the Earth's gravity, and is provided with means for returning the piston 5 or housing 9 (in contrast to inverted dispenser devices / cartridges, the return means are external to the cartridge) and removing the passageway.

[0340] The device 3000 further comprises a brake means 15 configured to stop the axial movement 11 of the piston 5 within the housing 9 when the movable wall 3 is subjected to a pressing force 18 (previously referred to as external force 18) that is less than a threshold force.

[0341] The braking means 15 typically comprises: - lugs or tongues, which are arranged on the outside of the piston 5 and / or on the inside of the housing 9, and which are adapted to be rubbed or blocked by the respective surfaces of the outside (sic) of the housing 9 and / or the inside (sic) of the piston 5; and / or - lugs or tongues, which are arranged on the outside of the housing 9 and / or on the inside of the wall 303 arranged around the housing 9, and which are configured to be rubbed or blocked by the respective surfaces of the inside of the wall 303 and / or the outside of the housing 9. These embodiments are preferred because they act on the surface opposite the sealing surface between the piston 5 and the housing 9 so as not to damage the sealing surface.

[0342] Thus, the piston 5 and housing 9 are configured to allow three stages of movement of the piston 5 within the housing 9 during the action of force 18 (referring to the relative movement of the piston 5 with respect to the housing; in fact, in FIG. 26 the housing moves (together with the head 10) around the piston 5 while the piston 5 is stationary): 1) a stop phase, in which the piston 5 does not move beyond the means 15 as long as the force 18 is smaller than a threshold force, and then exceeds the means 15 as soon as the force 18 increases beyond this threshold force; 2) the free movement phase, the free movement of the piston 5 within the housing 9 after it has passed over the means 15, typically a translation of the piston 5 in its housing 9 of at least 0.5 mm or 1 mm, capable of imparting a threshold force (kinetic energy) with an impulse or acceleration; 3) Compression stage, in which the pressure in the pocket 21 is increased.

[0343] The cavity 306 remains stationary at all times. Stages 1 and 3 are the most important, stage 2 is optional. In certain configurations, recovery to stage 1 may be achieved by the frictional force of the piston within the housing (dynamic friction less static friction). The axial movement 11 of the piston 5 is along the central axis of the piston 5 .

[0344] The device 3000 has a pressing surface 26, also called a contact surface 26, and is configured to reduce the internal volume of the inner pocket 21 (and outer pocket 22) by deforming and moving the movable wall 3 by the dispensing head 10 under the action of a pressing force 18.

[0345] The dispensing head 10 is configured to move in the direction of the reservoir 6 so that as the fluid moves towards or approaches the reservoir 6 in the direction of movement, the fluid exits the head 10 laterally, i.e., through the orifice 24 in an orifice direction perpendicular or oblique to the direction of movement.

[0346] The movable wall 3 has the technical function of a spring or return means exerting a force returning the piston 5 towards the outside of the housing 9. The head 10 is equipped with a means returning the piston or the housing, which is preferably made of polyolefin, more precisely polypropylene (PP) (single material or of the same family), without a metal spring. In another embodiment not shown, the pocket 2 may preferably be equipped with a spring or elastic part around the piston 5 and / or the housing 9 in order to increase the return force of the movable wall 3.

[0347] The pressure surface 26 is integral with the dispensing head 10 and preferably comprises at least a portion of the dispensing head 10 .

[0348] It should be noted that in a plane perpendicular to the direction of axial movement 11 of piston 5 relative to housing 9, inner pocket 21 has a cross-section that is smaller than the cross-section of outer pocket 22 and / or the area of ​​pressing surface 26 configured to receive pressing force 18 from outside the device and / or the cross-section of reservoir 6. A reduction in the cross-section of inner pocket 21 has the advantage of increasing the pressure of the fluid, which is particularly advantageous in the case of a spray; in this embodiment, there is preferably at least a two-fold reduction in the cross-section or surface of pocket 21 relative to pocket 22 and / or surface 26 and / or reservoir 6.

[0349] The device 3000 includes an orifice 24 . The orifice 24 opens to the outside of the device 3000 . The orifice 24 is on the dispensing head 10 . Orifice 24 is configured to dispense fluid in a direction substantially perpendicular to the direction of movement 11 of dispensing head 10 .

[0350] The dispensing head 10 is adapted to undergo a translational movement. Orifice 24 is configured to distribute fluid in a direction substantially parallel to the elongation axis of distribution channel 20 (transverse orifice to head 10).

[0351] The inner pocket 21 is located below the outer surface of the device, less than 10 mm below the outer surface, preferably less than 5 mm below the outer surface. There is no intermediate rod between the pressure surface and the pocket 21 that would allow its volume to be changed (nor for any of the embodiments of Figures 17 to 27).

[0352] The action of the pressing force 18 allows the lateral outflow of the product through the orifice and the displacement of the movable wall 3 towards the reservoir 6 or in the immediate vicinity of the reservoir 6 . The device 3000 comprises a dispensing opening 22 connecting the pocket 21 to the dispensing channel 20 .

[0353] The distribution valve 28 is inside the distribution channel 20 of the device 3000 . The distribution channel 20 of the device 3000 comprises an internal volume configured to comprise (or house) a distribution valve 28. Thus, only the distribution valve 28 is provided in the distribution channel 20.

[0354] The device 3000 comprises a distribution valve 28 disposed in the distribution channel 20 which, in an open state, allows the passage of fluid from the interior of the inner pocket 21 towards the orifice 24 through the distribution opening 22 and the distribution channel 20 (particularly the housing 80), and, in a closed state, does not allow the passage of fluid from the interior of the inner pocket 21 towards the orifice 24 through the distribution opening 22 and the distribution channel 20 (precisely the housing 80). The valve 28 is not on the axis of the device.

[0355] The dispensing head 10 includes a sprayer with a mixer 25 as previously described. The dispensing head 10 is arranged outside the periphery of the pocket 21 .

[0356] The dispensing head 10 is configured to move at least in a translational motion by applying pressure 18 to the pressure surface 26. The translational motion of the dispensing head 10 is in the same direction and sense as the axial movement 11 of the housing 9 around the piston 5.

[0357] A part of the dispensing head 10 is configured to slide at least partially along the connecting wall 7 or the bottom wall 21, more precisely along the outer wall 302 of the outer pocket 22, under the action of the pressing force 18, so that the movable wall 3 of the outer pocket 22 is moved and / or deformed.

[0358] The pressure surface 26 is configured to reduce the internal volume of the inner pocket 21 (and outer pocket 22) when pressure is applied by deforming the movable wall 3, more precisely by squeezing it in the direction from the connecting wall 7 towards the reservoir 6.

[0359] The deformable movable wall 3 has a shape memory, and when the wall 3 is not subjected to an external stress, it either remains in the configuration in which the volume of the inner pocket 21 and the outer pocket 22 is maximized, as shown in Figure 26, or returns to that configuration to maximize the volume. The pressure surface 26 is accessible by the user's hand from the outside of the device 3000 and is 10 mm2 has a minimum surface area of

[0360] The housing 9 of the piston 5 is at least partially defined by a bottom wall 21. A part of the bottom wall 21, i.e. the part of the bottom wall 21 in contact with the distribution channel 20, is integral with the housing 9 of the piston 5. The bottom wall 21 at least partially defines the volume of the inner pocket 21 but does not define the outer pocket 22 . The connecting wall 7 may or may not at least partially define the piston 5 . The bottom wall 21 at least partially defines the housing 9 of the piston 5 .

[0361] In the particular case of the device 3000 shown in Figure 26, the braking means 15 of the piston 5 preferably comprise at least one tongue 303 of the wall 7 directed towards the wall of the housing 9, preferably on the outer edge of the wall forming the housing 9. However, the tongue can also be in the cap 305 of the wall 7 or 21. The tongue is directed substantially towards the axis of the piston and can oppose the relative movement of the piston 5 within the housing 9, and may also deform laterally.

[0362] In the device 3000, the movable wall 3 is separated from the connecting wall 7. The connecting wall 7 is configured to define the interior volume of the pocket 22 and the interior volume of the casing of the reservoir 6. The connecting wall 7 comprises a substantially planar shape. In the case of the device 3000, the connecting wall 7 is rigid, i.e. more rigid than the deformable wall 3 of the pocket 2.

[0363] The movable wall 3 is arranged between the bottom wall 21 and the connecting wall 7 . The connecting wall 7 has the same rigidity as the bottom wall 21 . The connecting wall 7 is fixed to the movable wall 3 . The movable wall 3 is fixed to the bottom wall 21 . The deformable wall 3 is flexible. The movable wall 3 is usually made of PP, which is thinner than the other walls.

[0364] The piston 5 is fixed to the connecting wall 7 by means of engagement, by welding and / or moulding, or is preferably of the same piece. The piston 5 is integral with the flat part of the connecting wall 7 . The connecting wall 7 is made of PP. The piston 5 is made of the same material as the connecting wall 7. In the device 3000, the piston 5 and the connecting wall 7 form a single piece. The piston 5 is therefore arranged between the flat portion of the connecting wall 7 and the housing 9 of the piston 5 .

[0365] The housing 9 of the piston 5 is arranged between the piston 5 and a distribution channel 20. This channel 20 is optional if a flat or sufficiently small distribution valve is used, for example of the "stud" type. The piston 5 is hollow and cylindrical.

[0366] The outer diameter of the piston 5 increases at the end of the piston 5, facing the housing 9 of the piston 5. This configuration makes it possible to have a sealed linear annular contact during the compression phase, i.e., when the dispensing head 10 is driven by a translational movement to reduce the volume of the pocket 2. This makes it possible, among other things, to improve the sealing performance of the device 3000. A low rotational movement (for example, of the ball joint type) can optionally complement this translational movement.

[0367] The device 3000 further comprises a supply opening 8 that connects the interior of the piston 5 and / or reservoir 6 to the interior volume of the inner pocket 21 without passing through the outer pocket 22 . The device 3000 includes a reservoir 6. The reservoir 6 is not in communication with the outer pocket 22 via the supply opening 8 or any other opening. The reservoir 6 includes an interior volume configured to contain a fluid.

[0368] The device 3000 is configured to direct the fluid along the path described above: - each time the volume of the inner pocket 21 increases, i.e. each time the head 10 rises, i.e. each time the piston leaves the housing 9, the fluid passes directly from the reservoir 6 and / or from the head cavity 306 inside the inner pocket 21 without passing through the inside of the outer pocket 22; and - with each pressing force 18 on the movable wall 3 that is greater than the threshold force and / or with each increase in the internal volume of the inner pocket 21 (and outer pocket 22), i.e. with each movement of the piston 5 towards the inside of the housing 9, it passes through the inside of the inner pocket 21 towards the opening 22, then the channel 20 and then the orifice 24. The movement of the piston 5 inside the housing 9 causes a compression of the product present in the volume of the pocket 21.

[0369] A supply valve 38 is located at port 8. The valve 38 typically comprises a membrane that presses against the piston 5 at the side of the housing 9. The valve 38 is not mechanically linked to the head 10. The valve is mounted laterally, rather than axially, on the head.

[0370] In an open state (which is particularly obtained when the internal volume of the pocket 21 is increasing), the valve 38 allows the fluid contained inside the reservoir 6 and / or the piston to pass towards the pocket 21, and in a closed state (which is particularly obtained when the internal volume of the pocket 21 is decreasing), it does not allow this.

[0371] The supply valve 38 closes after (sufficient) pressure is applied to the movable wall 3 , thus forming a supply valve for the inner pocket 21 . The valve 38 is - closed while the movement of the piston 5 reduces the internal volume of the pocket 21, It is arranged to be open during the movement of the piston 5 increasing the internal volume of the pocket 21.

[0372] The device 3000 further comprises a ring 74 configured to be placed on and / or fitted to the dispensing head 10 . The wall 7 is provided with or integral with means 304 (including wall 302), which is configured to guide the movement of the head 10 and is arranged inside the head 10. This allows the height of the device 3000 to be reduced. The flexible reservoir, whether or not it is incorporated into the reservoir, is clipped with a rigid ring, as shown in Figure 27. The edge of the wall 7 is made to allow the attachment of a ring 74.

[0373] Pocket 2 is directly beneath a pressure surface 26 configured to receive a pressure force 18 from outside the device, or - located directly below an assembly consisting of a pressure surface 26 configured to receive a pressure force 18 from the outside of the device and a channel provided with a valve.

[0374] In this embodiment, the device according to the invention comprises non-metallic return means 307 arranged to lift and / or withdraw the piston 5 from its housing 9 .

[0375] The area S2 of the inner cross section of the housing 9 is divided by at least two relative to the area S1 of the pressure surface 26 that is configured to receive the pressure force 18 from outside the device.

[0376] In the case of a spray, 50 to 100 microliters are dispensed. The internal volume (V1) of the piston 5 exceeds 40 microliters. The sum of the internal volume (V1) of the piston 5 and the internal volume (V2) of the housing 9 is greater than 80 microliters.

[0377] A crimping ring 180 allows for crimping of the reservoir on the bottom wall. Note that this embodiment includes a cavity 306 . This cavity 306 corresponds to the internal volume of the piston 5 . This cavity 306 is not closed and the fluid contained in the reservoir 6 can circulate from the reservoir 6 to the cavity 306 and / or from the cavity 306 to the orifice 24 .

[0378] However, it should be noted that a large portion (more than 50%) or preferably the entire volume of cavity 306 is not dead volume, i.e., the volume of fluid circulating from reservoir 6 to orifice 24 is turbulent and necessarily creates fluid movement within cavity 306.

[0379] Furthermore, it should be noted that the internal volume of cavity 306 is greater than the maximum volume of fluid that can exit through orifice 24 when piston 5 enters its housing 11 (sic). The movable wall 3 has the technical function of a spring or return means that exerts a force pulling the piston 5 out of the housing 9 . In FIG. 26 it can be seen that the housing 9 is at least partly formed by at least a part of the movable wall 3 .

[0380] The housing 9 is in direct contact with the wall that forms the pressure surface 26 . The housing 9 is formed in the same part as the pressing surface 26 and / or the housing 9 is at least partially formed by at least a part of the pressing surface 26 .

[0381] Preferably, the housing 80 is formed in two steps: firstly, the channel 20 is formed by molding, leaving an opening for the mold spindle used in this molding, this opening being usually located in the extension of the channel 20 opposite the orifice 24; - secondly, this opening is at least partially closed (by injection of a flexible or rigid material) and the valve 28 is preferably inserted into the housing 80 through this opening;

[0382] Figures 28 and 29 show an eighth embodiment of a device for dispensing fluids, device 4000. Only the differences with device 3000 of Figure 27 will be described.

[0383] The device 4000 for dispensing fluids comprises: - Orifice 24, a pocket 2, having an internal volume for containing a fluid, the internal volume being at least partially defined by a movable wall 4; a reservoir 6, configured to contain a fluid; and - 40 Pocket Caps

[0384] The pocket cap 40 comprises: a supply valve 38 which, in an open state, allows the passage of fluid from the reservoir 6 to the interior volume of the pocket 2, and in a closed state, does not allow it; and / or a distribution valve 28 which, in an open state, allows the passage of fluid from the interior volume of the pocket 2 to the orifice 24, and in a closed state, does not allow it. The device 4000 comprises a supply valve 38 and a distribution valve 28.

[0385] In its open state, the supply valve 38 of the device 4000 allows the passage of fluid from the reservoir 6 to the interior volume of the pocket 2, and in its closed state, does not allow it. The supply valve 38 is disposed within the pocket cap 40 so as to open the supply opening 8 in its open state and close the supply opening 8 in its closed state.

[0386] In the illustrated embodiment, the pocket cap 40 includes the supply valve 38 and the dispensing valve 28 . The supply valve 38 and the supply (sic) valve 28 are integral and are a single part. The distribution (sic) valve portion 38 is located over the supply opening 8, and the distribution valve portion 28 blocks the passage of fluid to the orifice 24 in the distribution channel 20 located in the pocket cap 40.

[0387] The dispensing valve 38 (sic) and the supply valve 28 (sic) are disposed within a housing 130 disposed in the pocket cap 40 . The housing 130 of the pocket cap 40 is configured to house the supply valve 38 and the distribution valve 28. The housing 130 is connected to the distribution channel 20.

[0388] The Device 4000 also features: - cavity 122, a reservoir opening 124, which forms the connection between the reservoir 6 and the cavity 122;

[0389] The pocket cap 40 is configured to be installed by insertion into the cavity 122 of the device 4000, extending and installing as follows: - from the reservoir 6 to the orifice 24, at least partially through the pocket 2 where it passes through the movable wall 4, or - at least partially along the pocket 2 (note that in the particular case of Figure 28 or Figure 29, the pocket cap 40 is configured to be attached by insertion into the cavity 122 of the device 4000 and extends over the entire length of the pocket 2). In the device 4000, the pocket cap 40 is attached to extend at least partially along the pocket 2.

[0390] The device 4000 includes an entrance opening 120 that is configured to allow the pocket cap 40 to be inserted into the device from outside the device 4000 and that opens into a cavity 122 . The interior volume of the pocket 2 comprises at least a portion (ie, part or all) outside the cavity 122 . The cavity 122 is entirely outside the reservoir 6 .

[0391] The pocket cap 40 has an internal volume called the head reservoir 126, which is configured to connect to the reservoir opening 124 on one side and to the supply opening 8 on the other side, which connects the head reservoir 126 to the internal volume of the pocket 2. The cavity 122 has an internal volume different from the internal volume of the pocket 2 .

[0392] A head reservoir 126 is configured within the cavity 122. The head reservoir 126 has a circular end that faces the side of the reservoir 6. The movable wall 4 is fixed to at least one outer wall of (and defines) the cavity 122. Thus, a portion of the interior volume of the pocket 2 is configured within the cavity 122, excluding the interior volume defined by the deformable wall 4.

[0393] The internal volume of the head reservoir 126 is at least 1 cm 3 , or at least 3 cm 3 , and even at least 5 cm 3 and / or contains air or the fluid being dispensed.

[0394] The pocket cap 40 is inserted into the reservoir opening 124 to at least partially define the head reservoir 126 and is attached to the cavity 122 such that the walls of the pocket cap form a first sealed connection 148 between the interior volumes of the pocket 2 and the reservoir 6 at the end of the threading.

[0395] The first sealing connection 148 is configured so that at the end of the threading, the first sealing connection 148 is waterproof. The same applies to all other joints in the device. Seal 149A comprises a flexible material compressed axially. Seal 149B is a skirt with a radial component greater than the axial component.

[0396] The first sealing connection 148 is in the form of a collar and is arranged on a wall that defines at least a portion of the reservoir 6. The first sealing connection 148 is arranged in particular on a portion of the reservoir 6.

[0397] The seal of the first sealing connection 148 is produced by radial pressure (i.e. having a greater component in the radial direction than in other directions), in particular by interlocking and / or screwing one end of the head cap 126 (sic) onto one end of the reservoir in the form of a collar 148. When the pocket cap 40 is attached to the cavity 122 , the head reservoir 126 does not extend across the entire volume of the cavity 122 .

[0398] To fill the device, the pocket cap is removed, the reservoir, then cavity 122 and / or pocket 2 are at least partially filled with the product to be dispensed, and one end of cap 40 is then inserted into the cavity. The product then returns to cap 40 and / or pocket 2, and air escapes through opening 120. Air trapped in the head reservoir can exit through vent 146. The cap is screwed on tightly using sealing elements 149A and / or 149B.

[0399] The pocket cap 40 includes a vent 146 . Vent 146 is a hole that typically allows air contained in cavity 122 and / or reservoir 6 to escape when pocket cap 40 is inserted into cavity 122. Vent 146 allows for avoiding the effects of air overpressure and keeping air out of the device.

[0400] Thus, during insertion of pocket cap 40 into cavity 122, air contained within cavity 122 escapes through vent 146. At the end of threading of cap 40, vent 146 is blocked by the interior wall of cavity 122.

[0401] The head cap 40 includes a second portion 128 separate from the head reservoir 126 and configured to direct fluid from the interior volume of the pocket 2 towards the orifice 24 . The distribution channel 20 is located in the second portion 128. The distribution channel is provided in the housing 130 of the pocket cap 40.

[0402] The second portion 128 also includes a distribution valve 28 configured in the distribution channel 20 which, in an open state, allows fluid to pass from the interior volume of the pocket 2 to the orifice 24, and, in a closed state, does not. The orifice 24 is configured in the second portion 128 of the pocket cap 40 , more precisely in the outer wall of the second portion 128 .

[0403] Thus, device 4000 is configured to direct fluid along a path that includes the following routes: a first route 141 from the reservoir 6 through the reservoir opening 124 to the head reservoir 126, then a second route 142 from the head reservoir 126 through the supply opening 8 to the interior volume of the pocket 2, and then a third route 143 connecting the internal volume of the pocket 2 to the orifice 24 via the second part 128 of the pocket cap 40;

[0404] The device 4000 is configured to direct fluid along the first and second routes at each end of the pressing force 18 on the movable wall 4 of the pocket and / or at each increase in the internal volume of the pocket 2 . The device 4000 is configured to direct fluid along a third route with each pressing force 18 on the movable wall of the pocket 2 and / or with each reduction in the internal volume of the pocket 2, and the supply opening 8 is closed by the supply valve 38.

[0405] The pressure is typically the pressure that the user exerts by pressing with one of the fingers of his hand (typically on the wall 4), possibly using a lever or button.

[0406] The supply valve 38 opens with each press of the movable wall 4 . Thus, opening the supply valve 38 allows the passage of fluid along the second route.

[0407] The dispensing valve 28 opens after each press, for example when the user removes his finger from the movable wall 4 . Thus, opening the distribution valve 28 allows the passage of fluid along the third route. The pocket cap 40 comprises fastening means 132 configured to fasten the pocket cap 40 to the wall defining the cavity 122 by screwing.

[0408] The fixing means 132 comprises an anti-unlocking system 132 of the pocket cap 40 relative to the cavity 122, which is configured to prevent loosening of the pocket cap 40. The anti-unlocking system 132 is, for example, a system of inclined teeth 132, which allows the cap to be turned in one direction to be screwed on, but not in the other direction to be unscrewed.

[0409] The angled teeth are arranged around the entire circumference of the circular end of the reservoir head 126 facing the reservoir 6. In a variation of the device 4000 (not shown), the teeth are inserted into and blocked by recesses during tightening, preventing loosening of the head reservoir 126 within the cavity 122 after tightening.

[0410] The reservoir 6, cavity 122 and pocket 2, except for the movable wall 4 of the pocket 2, are integral so as to form a single part. 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 . The movable wall 4 of the pocket is flexible, i.e. less rigid than the rest of the pocket 2 . The movable wall 4 is typically made of PP, PE, or TPO and is thinner than the thickness of the cavity 122 or reservoir 6 .

[0411] The movable wall 4 of the pocket 2 is convex and has a curvature, for example the pocket is concave in shape (in the direction from the cavity 122 towards the pocket 2). In a variant not shown, the pocket 2, and in particular the movable wall 4, can be of a different shape, for example oval, rectangular, square, spherical, etc. The reservoir 6 and the cavity 122 form a single piece.

[0412] The reservoir 6 and cavity 122 are produced by polymer injection molding and / or blow molding of PP, PE or TPO. The reservoir 6 is a cylindrical chamber with a piston, preferably made of the same material as the reservoir wall, preferably made of polyolefin, and preferably comprising a single annular band configured to be compressed against the inner wall of the reservoir.

[0413] The reservoir 6 extends longitudinally about a first axis of elongation A. The pocket 2 may extend longitudinally about a second axis of elongation and / or the pocket cap 40, preferably the head reservoir 126, may extend longitudinally about a third axis of elongation C.

[0414] The first axis of elongation A is offset relative to the second and / or third axis C. Thus, the reservoir 6 and the pocket cap 40, and in particular the head reservoir 126, are not centered on the same axis; they are off-center. The first extension axis A and / or the second extension axis and / or the third extension axis C are parallel to one another.

[0415] Pocket cap 40 extends in an elongation direction 136 that coincides with the longitudinal direction of pocket cap 40. Pocket cap 40 is configured to be installed by insertion into cavity 122 from an insertion direction parallel to elongation direction 136, with inlet opening 120 and reservoir opening 124 aligned with elongation direction 136.

[0416] The plane of the inlet opening 120 and the plane of the reservoir opening 124 are parallel to each other and perpendicular to the direction of extension 136 of the pocket cap 40 . The pocket cap 40 is inserted into the cavity 122 through the inlet opening 120. The pocket cap 40 is then screwed onto the reservoir 6 via the anti-unlocking system 132.

[0417] It should be noted that in a variant of device 4000 in which the supply valve is not carried by cap 40 but connects reservoir 6 directly to pocket 2, device 4000 is configured to direct fluid according to the following path: - does not include the first route 141, and passes from the reservoir 6 through the reservoir opening 124 to the head reservoir 126, and if the valve is in the bottom wall, there is no first route and does not pass through the head reservoir; does not include a second route 142 passing from the head reservoir 126 through the supply opening 8 to the interior volume of the pocket 2; and It only has a route passing from the reservoir 6 to the pocket 2 and then a route 143 connecting the internal volume of the pocket 2 to the orifice 24 via the part 128 of the pocket cap 40 .

[0418] Figure 30 shows a ninth embodiment of a device for dispensing fluids, device 5000. Only the differences with device 4000 of Figures 28 and 29 will be described. More specifically, FIG. 30 shows a variation of the device 4000 shown in FIGS.

[0419] In device 5000, reservoir 6, cavity 122 and pocket 2 are integral to form a single piece. The reservoir 6, cavity 122 and pocket 2 are made by injection molding or 3D printing of PP, PE or TPO polymer (in the case of 3D printing, the rigid parts may be made of rigid TPU and the flexible (deformable) parts of soft TPU).

[0420] In the case of device 5000 , pocket cap 40 also includes a head reservoir 126 inserted into cavity 122 . In device 5000, when pocket cap 40 is attached to cavity 122, head reservoir 126 extends the entire length of cavity 122 configured to accommodate head reservoir 126.

[0421] Pocket cap 40 also includes a vent 146 configured to vent air contained in cavity 122 when pocket cap 40 is inserted into said cavity 122 .

[0422] The cavity 122 is separated from the interior volume of the pocket 2 . When the pocket cap 40 is inserted into the cavity, the device 5000 has a first sealed connection 148 formed between the volume of the pocket 2 and the reservoir 6 when the pocket cap 40 is secured to the cavity 122.

[0423] The first sealing connection 148 is formed when the walls of the cavity 122 exert a lateral or radial force at the walls of a head reservoir 126 configured near the reservoir 6 and inserted into the cavity 122. However, this sealing connection 148 is not necessary, as there may be a small amount of play at element 124 and a small amount of unevenness at element 150 .

[0424] The pocket cap 40 is inserted into the reservoir opening 124 and attached to the cavity 122 such that the wall of the pocket cap 40, which at least partially defines the head reservoir 126, forms a second sealed connection 150 between the interior volume of the pocket 2 and the head reservoir 126 at the end of the screwing.

[0425] The second sealing connection 150 is configured so that at the end of the threading, the second sealing connection 150 is at least 50% tight to the product. In device 5000, vent 146 is configured to expel air contained in cavity 122 or head reservoir 126 from device 5000 when pocket cap 40 is attached or placed in cavity 122.

[0426] In a variant (not shown) of device 6000 (sic), following the same principles as device 700 illustrated in Figures 10, 11 and 12, reservoir 6 may be provided with at least one flexible wall configured to be inserted into head reservoir 126 as reservoir 6 empties of fluid. There is a seal between the cap 40 and the bottom wall 21 .

[0427] Figures 31 and 32 show a tenth embodiment of a device for dispensing fluids, a device 6000. Only the differences with device 4000 of Figures 28 and 29 will be described.

[0428] In the device 6000, the reservoir 6, cavity 122 and pocket 2 are integral to form a single piece. The reservoir 6, cavity 122 and pocket 2 are manufactured by 3D printing. The cavity 122 forms parts 611 , 662 and 663 of the reservoir 6 and comprises deformable walls configured to increase the volume of the reservoir 6 laterally.

[0429] In the device 6000, the reservoir 6 is divided into several portions 661, 662, 663. This embodiment therefore comprises several supply openings 124 (one for each portion of the reservoir 6) connecting the reservoir 6 to the cavity 122. The device 6000 comprises two pockets 211, 212, opposite each other on the outer wall of the cavity 122 (or reservoir 6).

[0430] To this end, the device 6000 comprises two supply openings 8 each connecting a cavity 122 in a reservoir 6 or pocket 2 . The deformable walls of the parts 661, 662 and 663 of the reservoir 6 are separate and distinct from the pockets 211, 212. The deformable walls 662, 663 are at least partially arranged between the pockets 211, 212.

[0431] The two pockets 211 and 212 are identical, although in a variation of device 6000 (not shown), the two pockets 2111, 212 may be of different shapes and therefore different internal volumes. The reservoir 6 may be configured to contain two separate fluids, with the pockets 211, 212 each configured to accommodate a particular fluid.

[0432] The pocket cap 40 has two supply valves 38 which, when open, allow fluid to pass from the reservoir 6 and / or cavity 122 to the interior volume of the pocket 211 or 212, respectively, and do not allow passage when closed.

[0433] The device 6000 also includes a distribution valve 28 separate from the two supply valves 38 which, in an open state, allows fluid to pass from the internal volume of the pocket 2 to the orifice 24, and, in a closed state, does not allow passage.

[0434] Thus, fluid passes from reservoir 126 and / or cavity 122 to pocket 2 (211 or 212) and from this pocket 2 to channel 20 in pocket cap 40 before reaching distribution valve 28. Distribution valve 28 is disposed in distribution channel 20.

[0435] The first axis of elongation A is not offset relative to the third axis C. In this way, the reservoir 6 and the pocket cap 40 are coaxial, with the center of the same axis. The first extension axis A and / or the second extension axis and / or the third extension axis C are parallel to one another.

[0436] Note that in the particular case of FIG. 32, the pocket cap 40 is configured to be inserted into and attached to the cavity 122 of the device 4000 so that it extends only partially along the pocket 2.

[0437] Figure 33 shows an eleventh embodiment of a device for dispensing fluids, a device 7000. Only the differences with the device 6000 of Figures 31 and 32 will be described.

[0438] The pocket cap 40, distribution channel 20, supply valve 38, and distribution valve 28 of the device 7000. The interior volume of pocket 2 is entirely contained within cavity 122 . The cavity 122 is completely outside the reservoir 6 . In particular, the pocket 2 and the movable wall 4 of the pocket are disposed within the interior volume of the cavity 122 .

[0439] In device 7000 , the dispensing valve 28 is disposed in the dispensing channel 20 of the pocket cap 40 . The device 7000 is configured to guide fluid passing therethrough from the reservoir 6 towards the interior volume of the pocket 2 via the reservoir opening 124, and from the interior volume of the pocket 2 towards the distribution channel 20 via the distribution opening 8 connecting the interior volume of the pocket 2 to the distribution channel 20.

[0440] The movable wall of the pocket 2 is convex, i.e. it has a curved surface, for example the pocket has a concave shape on the inside of the pocket.

[0441] The pocket cap 40 has a portion 140 that is different from the head reservoir 126 of FIGS. 28 and 29. In fact, in the case of device 8000 (sic), the cavity 140 is not configured such that on one side it leads to the reservoir opening 124 and on the other it leads to the supply opening 8 that connects the head reservoir 126 to the internal volume of the pocket. The fluid to be distributed passes directly from the reservoir 6 to the internal volume of the pocket 2 via the reservoir 6 or the reservoir opening 124 or the supply opening 8 (where these two openings are combined). The pocket cap 40 includes a portion 140 that is different from the head reservoir 126 of FIGS. 28 and 29. In fact, in the case of device 8000, the cavity 140 is not configured such that on one side it leads to the reservoir opening 124 and on the other it leads to the supply opening 8 that connects the head reservoir 126 to the internal volume of the pocket. The fluid to be distributed passes directly from the reservoir 6 to the internal volume of the pocket 2 via the reservoir 6 or the supply opening 124 or the supply 8 (where these two openings are combined).

[0442] Pocket 2 has a threaded collar. The portion 140 of the pocket cap 40 is inserted into the skirt of the cavity and thus defines a first sealing connection 148 between the internal volume of pocket 2 and reservoir 6. The cap 40 is configured at the bottom wall to slide the connection 148. The first sealing connection 148 is configured such that at the end of the screwing, the first sealing connection 148 is airtight with respect to the product.

[0443] Device 7000 has a pressing surface 26, which is also called the contact surface 26, is arranged on the pocket cap 40, and is configured to reduce the internal volume of the pocket 2 by deforming and moving the movable wall 4 via the pocket cap 40 under the action of the pressing force 18. When the pressing surface 26 is pushed, the head reservoir slides within the skirt (the pocket is crushed). In a preferred embodiment, the part 140 has a plug 145 on the reservoir side, and in this case, the internal volume of the part 140 preferably comprises a gas such as air.

[0444] The internal volume of the part 140 extends from the reservoir 6 or cap 145 to the dispensing valve. The volume of the part 140 is at least 1 cm 3 , or at least 3 cm 3 , or at least 5 cm 3 and may comprise a gas and / or fluid to be dispensed. The cap 40 is guided by the ring 159 and is configured to slide on the inner surface of the ring 159 therebetween.

[0445] The movable wall 4 of the pocket includes a first collar 158 configured to be assembled (attached, screwed, or clipped) to the head cap 40, particularly at the head of the pocket cap 40. The collar 158 of the cavity 122 includes thicker walls than the walls defining the movable wall 4 of the pocket 2. The upper end of the collar 158 of the pocket 2 forms the entrance opening 120.

[0446] Figure 34 shows a twelfth embodiment of a device for dispensing fluids, device 8000. Only the differences with device 7000 of Figure 33 will be described. In device 8000, cavity 122 coincides with pocket 2. Therefore, the internal volume of pocket 2 is equal to the internal volume of cavity 122.

[0447] The device 8000 includes a pocket housing 160 configured at least partially in the pocket 2 in which the supply valve 38 and the distribution valve 28 are disposed. The housing 160 of the pocket 2 is configured to accommodate the distribution valve 38 and the supply valve 28. The distribution valve 28 and the supply valve 38 form a single part.

[0448] The device 8000 is configured to guide fluid passing from the reservoir 6 towards the internal volume of the pocket 2, in particular in the internal volume formed by the movable wall 4 of the pocket 2, through the reservoir opening 124 or the supply opening 8 (sic) (these two openings are merged), and from the internal volume of the pocket 2 towards the distribution channel 20 through the distribution opening 8.

[0449] The movable wall 4 of the pocket 2 is convex, i.e. has a curved surface. For example, the pocket 2 is concave in shape. Pocket cap 40 is T-shaped, having an upper portion 162, which is the head 162 of the T, and a lower portion 140. Portion 140 may or may not be configured to contain a fluid. The fluid may be air, a vacuum, or a fluid dispensed by device 8000.

[0450] In device 8000, pocket cap 40 is inserted into cavity 122 (pocket 2) by screwing. To that end, cavity 122, and more particularly movable wall 4 of the pocket, comprises a first collar 158 configured to be assembled (attached, screwed, or clipped) to head cap 40, and in particular to the head of pocket cap 40. Collar 158 of cavity 122 has thicker walls than the walls defining movable wall 4 of pocket 2. An upper end of collar 158 of pocket 2 forms entrance opening 120.

[0451] The portion 140 of the pocket cap 40 is different from the head reservoir 126 in Figures 28 and 29. The portion 140 is a cylinder centered on an axis R. The portion 140 of the pocket cap 40 is configured to be inserted into the cavity 122, particularly the inner volume of the pocket 2, so that the inner volumes of the movable wall 4 and the part 140 are centered on the axis R, which is a common axis. Therefore, the inner volumes of the movable wall 4 and the part 140 are coaxial.

[0452] The pocket 2 is provided with a second collar. The portion 140 of the pocket cap 40 is inserted into the second collar of the cavity, thus defining a first sealed connection 148 between the interior volume of the pocket 2 and the reservoir 6. The first sealing connection 148 is configured so that at the end of the threading, the first sealing connection 148 is at least 50% tight against the product.

[0453] Figures 35 to 40 show another embodiment of a device for dispensing a fluid, device 3500. Figures 41 to 46 show another embodiment of a device for dispensing a fluid, device 4100. These two embodiments 3500, 4100 will be described only in terms of their differences from device 7000 of Figure 33.

[0454] Each of the devices 3500, 4100 for dispensing fluids comprises: - Orifice 24, a pocket 2, which has an internal volume for containing a fluid, the internal volume of the pocket 2 being at least partially defined by a movable wall 4; a reservoir 6, configured to contain a fluid and having two openings, an upper opening 124 and a lower opening 87, facing the pocket 2, the reservoir 6 being configured to reduce its internal volume when the fluid leaves the reservoir; a distribution valve 28, which in the open state allows the passage of fluid from the pocket 2 to the orifice 24 and in the closed state does not allow it, a supply valve 38 which, in the open state, allows the fluid contained in the reservoir 6 to pass towards the pocket 2 and, in the closed state, does not allow it.

[0455] The lower opening 87 is configured to allow the passage of fluid, preferably the passage of a cannula (or filling rod) that transports fluid, so that the reservoir 6 is at least partially filled up to at least the supply valve 38, so that the fluid comes into contact with the supply valve 38, and preferably so that the volume within the pocket 2 is also at least partially filled with fluid. The supply valve is configured, for example by bending, to allow passage of a rod or cannula.

[0456] Figures 35 to 40 show an embodiment of a device 3500 for dispensing fluids. Only the differences with device 7000 of Figure 33 will be described.

[0457] The reservoir 6 is at least partially defined by a movable piston 86 configured to move to reduce the internal volume of the reservoir 6 when fluid leaves the reservoir 6, and has a lower opening 87, which is blocked by a removable cap 89.

[0458] A removable cap 89 is threaded onto the piston 86 . The piston 86 is provided between the reservoir 6 and a bottom wall 91, and the bottom wall 91 is provided with a rotation stopping means 93, which stops the rotation of the piston 86 when the cap 89 is screwed onto the piston 86 while the piston 86 is in contact with the bottom wall 91.

[0459] Different variants of this embodiment 3500 can be combined with each other: In the variant shown in FIG. 36, the means 93 typically comprise, for example, a slot into which part of the piston 86 fits, and / or In the variant shown in FIG. 37, the means 93 typically comprise, for example, clipping means, and / or - in the variant shown in FIG. 39, the piston 86 comprises at least one hole 95 adapted to allow fluid to pass between the reservoir 6 and a sealing zone 97, the sealing zone 97 being between the piston 86 and a wall 99 along which the piston 86 is adapted to move; and / or - the piston may be curved (disk, ellipse or other) or polygonal. In the variant shown in Figure 40, the piston 86 has a polygon with several sides connected at an angle in a cross section perpendicular to the direction of movement of the piston 86 along the wall 99, and the device further comprises a force distribution element 103 configured to press the piston 86 against the wall 99 on several (preferably all) sides of the polygon, except for the corners of the polygon. In another variant, the distribution element 103 may be replaced by a variable thickness of the wall of the piston 86.

[0460] Figures 41 to 46 show another embodiment of a device for dispensing fluids, device 4100. Only the differences with device 3500 of Figures 35 to 40 will be described.

[0461] The reservoir 6 configured to contain a fluid includes: a flexible wall 108 with two openings, an upper opening 124 facing the pocket 2 and a lower opening 87; a preferably removable, rigid wall 91 configured to close the lower opening 87;

[0462] The area of ​​the cross-section of upper opening 124 (which cross-section is selected to minimize the area of ​​upper opening 124) is at least two times (or even at least four times) smaller than the area of ​​the cross-section of lower opening 87 (which cross-section is selected to minimize the area of ​​lower opening 87).

[0463] The flexible wall 108 is configured to deform to reduce the internal volume of the reservoir 6 as fluid exits the reservoir 6 . The device 4100, or more precisely the rigid wall 91, is configured to keep the position of the lower opening 87 of the device 4100 fixed relative to the position of the upper opening 124 of the device 4100.

[0464] The flexible wall 108 is fixed to the pocket 2 according to a sealing connection. The flexible wall 108 is provided with a cylinder 81 above the reservoir 6 that allows sealing. To achieve sealing, this cylinder 81 is either compressed (as in Figures 42, 44) or nested (as in Figure 41). It is preferable to have a second cylinder concentric with the first cylinder 81.

[0465] The device 4100 comprises means 110 for the internal guidance of the cap (the part that forms the internal volume of the pocket 2 and that also surrounds the dispensing valve 28), which is configured to guide the movement of the cap. The means 110 takes the form of a wall 110 that rises from the bottom wall 21.

[0466] The device 4100 includes a retaining cavity 111, which is particularly useful when the reservoir 6 is a replaceable cartridge. This cavity 111, when held by fingers or a clip on the outer housing, allows the reservoir 6 to remain fixed while the cap or head is rotated.

[0467] Different variants of this embodiment 4100 can be combined with each other: The flexible wall 108 is fixed to the pocket 2 according to the sealing connection by: o By welding, and / or o by clipping (by clip 83) and / or by interlocking, as shown in the variant of FIG. 41; and / or o Fixation is achieved by compression of the flexible wall 108 around the upper opening 124. Fixation by compression is achieved between, on the one hand, a part that forms or is integral with the pocket 2 and is located outside the reservoir 6, and, on the other hand, a ring 109 inserted inside the reservoir 6 (which, as previously mentioned, forms the upper edge of the supply valve seat 62), as shown in the variants of Figures 42, 44 and 46. In the variant of Figure 42, the ring 109 is integral with the rigid wall 91, and the ring 109 and the wall 91 form the same part with continuity of material, while in the variants of Figures 44 and 46, the ring 109 and the wall 91 form two different parts without continuity of material, and / or The flexible wall 108 and the supply valve 38 may be formed in the same part with material continuity (as shown in Figures 41 to 43) or in two separate parts without material continuity (as shown in Figures 44 to 46).

[0468] It should be noted that in all of the above embodiments, the device is configured to operate (i.e., to dispense fluid through the orifice via the supply valve and / or dispensing valve) with its dispensing head up (i.e., the orifice 24 is located above the reservoir 6) or down (i.e., the orifice 24 is located below the reservoir 6).

[0469] Of course, the invention is not limited to the embodiments described, to which many modifications can be made.

[0470] For example, in all of the embodiments and variations just described: - Force 18 can be applied by the user directly or using buttons. - For reservoirs with pistons, the pressure equalization hole must be at least 3 mm in size 2 is.

[0471] For example, in all embodiments and variations of Figures 17-27: The device may comprise pre-guiding means for pre-guiding the piston 5 within its housing 9, the pre-guiding means typically comprising at least one tongue 17 and / or at least one wall 65. The wall 3 (or "spring" 3) can form part of the head 10 or can be a part independent of the head 10, such as for example a flexible cylinder configured to compress.

[0472] In the case of Figure 26, the piston 5 and the housing 9 may be interchanged. 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 connecting wall 7 at least partially defines the housing 9 and / or the head cavity 306; and / or the bottom wall 21 at least partially defines the piston 5, and / or The translational movement of the dispensing head 10 is in the same direction and sense as the axial movement 11 of the piston 5 in the housing 9.

Claims

1. 1. A fluid dispensing device for dispensing a fluid, comprising: an inner pocket (2) having an internal volume adapted to contain said fluid; １ a pocket (2) provided with - said inner pocket (2) by deforming and / or moving under the action of a pressing force (18) on the pressing surface (26); １ a movable wall (3) configured to reduce the internal volume of the an orifice (24) adapted to distribute said fluid; The inner pocket (2 １ ) wherein the internal volume of a piston (5) integrally provided with a connecting wall (7) connected to said movable wall (3); - a housing (9) configured to receive said piston (5) and to guide said piston (5) during its axial movement (11) therein; the piston (5) or the housing (9) is at least partially formed by at least a part of the movable wall (3), and / or - the piston (5) or the housing (9) is in direct contact with the wall forming the pressing surface (26), or - said piston (5) or said housing (9) is at least partially formed by at least a part of said pressure surface (26); The fluid distribution device comprises: a distribution channel (20) configured to direct said fluid from said internal pocket (21) to said orifice (24); a mixer (25) configured to receive the different separate fluid streams and mix them to form a spray at said orifice (24).

2. 2. A fluid distribution device according to claim 1, wherein the pocket (2) comprises an outer pocket (2 ２ ) further comprises the inner pocket (2 １ ) is at least partially attached to said outer pocket (2 ２ ) and the inner and outer pockets (2 １ , 2 ２ ) each having an internal volume configured to contain said fluid, and ２ The inner volume of the outer pocket (2) is at least partially defined by the movable wall (3), which deforms and / or moves under the action of the pressing force (18) to thereby ２ ) to reduce the internal volume of the container.

3. 3. A fluid distribution device according to claim 2, wherein the connecting wall (7) is at least partially connected to the outer pocket (2). ２ ) to define said internal volume.

4. 4. A fluid distribution device according to claim 2 or 3, wherein the fluid is delivered to the outer pocket (2) via a supply opening (8). ２ ), said reservoir (6) having an internal volume configured to contain said fluid, said internal volume of said reservoir (6) being defined at least in part by a deformable casing (56).

5. 4. A fluid distribution device according to claim 2 or 3, configured to guide the fluid according to a path comprising a first route and a second route; said first route being o The outer pocket (2 ２ The internal volume of the inner pocket (2 １ ) through at least one connecting hole (13) connecting to the inside of the outer pocket (2 ２ ) from the inside of the inner pocket (2 １ ) through the inside, - the second route is connected to the inner pocket (2 １ ) communicates with said orifice (24).

6. 6. A fluid distribution device according to claim 5, wherein the connecting hole (13) comprises: formed at the connection (19) between one end of the piston (5) and one end of the housing (9) of the piston (5), and / or - It includes a hole (23) in the housing (9) of the piston (5).

7. 2. A fluid distribution device according to claim 1, wherein the pocket (2) comprises an outer pocket (2 ２ ) and the outer pocket (2 ２ ), and a reservoir (6) communicating with said inner pocket (2 １ ) is at least partially attached to said outer pocket (2 ２ ) and the inner pocket (2 １ ) has an internal volume configured to contain the fluid, and the outer pocket (2 ２ ) has an internal volume that is not configured to contain the fluid, and the outer pocket (2 ２ The inner volume of the outer pocket (2) is at least partially defined by the movable wall (3), and the movable wall (3) is deformed and / or moved under the action of the pressing force (18) to define the inner volume of the outer pocket (2). ２ ) from the interior of the reservoir (6) and / or the piston (5) to the inner pocket (2). １ ) inside the outer pocket (2 ２ The fluid is configured to guide the fluid along a path that includes a route that passes directly through the interior of the pipe without passing through the interior of the pipe.

8. 2. A fluid distribution device as claimed in claim 1, comprising a distribution valve (28) inside the distribution channel (20) and a distribution opening (22) connecting the pocket (2) to the distribution channel (20).

9. 8. A fluid distribution device according to any one of claims 1 to 7, wherein the fluid distribution device is arranged in the distribution channel (20) and distributes the fluid to the inner pocket (2). １ ) to said orifice (24).

10. Fluid distribution device according to any one of the preceding claims, wherein the movable wall (3) comprises or is a deformable wall.

11. A fluid distribution device according to any one of the preceding claims, wherein the movable wall (3) comprises the connecting wall (7).

12. A fluid distribution device according to any one of the preceding claims, wherein the movable wall (3) is separated from the connecting wall (7).

13. A fluid distribution device according to claim 4, wherein the action of a pressing force (18) allows the fluid to flow laterally through the orifice (24) and the movable wall (3) to be displaced towards the reservoir (6) or in the immediate vicinity of the reservoir (6).

14. 14. A fluid distribution device according to any one of the preceding claims, wherein the pocket (2) comprises: directly beneath the pressure surface (26) so as to receive the pressure force (18) from outside the fluid distribution device, or - it is positioned directly below the assembly constituted by the pressure surface (26) and the valved channel so as to receive the pressure force (18) from outside the fluid distribution device.

15. 1. A fluid dispensing device for dispensing a fluid, comprising: an inner pocket (2) having an internal volume adapted to contain said fluid; １ a pocket (2) provided with - said inner pocket (2) by deforming and / or moving under the action of a pressing force (18) on the pressing surface (26); １ a movable wall (3) configured to reduce the internal volume of the an orifice (24) adapted to distribute said fluid; The inner pocket (2 １ ) wherein the internal volume of a piston (5) integrally provided with a connecting wall (7) connected to said movable wall (3); - a housing (9) configured to receive said piston (5) and to guide said piston (5) during its axial movement (11) therein; the piston (5) or the housing (9) is at least partially formed by at least a part of the movable wall (3), and / or - the piston (5) or the housing (9) is in direct contact with the wall forming the pressing surface (26), or - said piston (5) or said housing (9) is at least partially formed by at least a part of said pressure surface (26); The fluid distribution device comprises: - further comprising a mixer (25) configured to receive the different separate fluid streams and mix them in the form of a spray at said orifices (24); The fluid distribution device has an outer pocket (2 ２ ) and the inner pocket (2 １ ) is at least partially attached to said outer pocket (2 ２ ) and arranged in the inner pocket (2 １ ) has an internal volume configured to contain the fluid, and the outer pocket (2 ２ The inner volume of the outer pocket (2) is at least partially defined by the movable wall (3), and the movable wall (3) is deformed under the action of the pressing force (18) to thereby ２ ) is configured to reduce the internal volume of the

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