FR3118954A1 - “Fluid dispenser equipped with a dose button” - Google Patents

Abstract

"Fluid dispenser provided with a dosage button" The invention relates to a liquid dispenser device provided with a pocket (2), a support surface (25) arranged for, under the exercise of a pressure, reduce the interior volume of a pocket (2) by deformation displacement of a deformable, a dispensing valve (5), the device further comprising a button (162) equipped with a screw thread (164) and screwed to an element integral with the wall (22), said thread (164) being arranged to adjust a maximum possible amplitude (165) of the movement of the button (162) on the wall (22), and therefore adjust a maximum amount of product delivered by the outlet (24) of the device according to the invention when pressing on the bearing surface (25). See Figure 76.

Description

“Fluid dispenser equipped with a dose button”

The present invention relates to a device for dispensing a fluid.

Such a device allows a user to dispense a fluid. The field of the invention is more particularly that of the distribution of products such as liquids, gels or creams, for example for the pharmaceutical or cosmetic or food industry.

State of the prior art

Fluid dispensers are known, as disclosed for example by the document WO2015155318.

In this area, manufacturers are making constant efforts to try to improve and/or simplify the compactness, use, ergonomics, manufacture and refilling of such fluid dispenser devices, to improve hygiene, recycling.

The object of the present invention is to solve at least one of these problems.

According to a first aspect of the invention, there is proposed a device for dispensing a fluid, comprising:

• a pocket having an interior volume arranged to contain the fluid, the interior volume being delimited at least in part by a deformable or mobile wall,
• a support surface arranged to, under the exertion of pressure, reduce the internal volume of the pocket by deforming the deformable wall or by moving the movable wall,
• an exit,
• a dispensing valve, and which in an open state allows a passage of fluid from the interior of the pocket towards the outlet, and, in a closed state, does not allow a passage of fluid from the interior of the pocket towards the exit,
• a reservoir,
• a supply orifice connecting the reservoir to the interior volume of the bag,
• at least one orifice or filler hole each opening onto the inside of the tank, and at least one plug closing this at least one orifice.

The filling holes can be two in number and are located on either side of the outlet.

Each filling hole can pass through a tip.

The mouthpiece can be inserted into a wall of the tank so that the bag is inserted into the tank.

A single plug can be arranged for simultaneously:

• plug the filling hole or holes, and
• plug and/or protect the outlet.

The cap can be removable by means of a hinge.

The filling holes can be two in number and be formed in an end piece and be located on either side of the outlet.

Each filling hole can pass through the tip.

The mouthpiece can be inserted into a wall of the tank so that the bag is inserted into the tank.

The tip can sink into the plug, a fluid distribution surface can be formed by the plug and the tip.

The tip may include two notches arranged to hold the device during filling and/or closing.

The cap may include two pins arranged to be positioned with the end piece during assembly.

The device according to the invention may further comprise:

• a dispensing part comprising a dispensing housing
• A dispensing orifice connecting the pocket to the dispensing housing

the cap may include a housing arranged to receive or fit with the dispensing part.

The housing may include the plug between the pins.

A single plug can be arranged for simultaneously:

plug the filling hole(s),

and/or plug and/or protect the exit,

and/or train an applicator.

The cap can be removable by means of a hinge or a flexible link.

The outlet may include small shapes (typically grooves, bumps and/or depressions) in its inner perimeter so that when a plug is inserted into the outlet, the space of the small shapes (typically grooves, bumps and/or hollow) between the inner perimeter of the outlet and the cap prevents the passage of the fluid to be dispensed but allows an air passage through the outlet.

The invention also relates to a method implemented in a device according to the invention, characterized in that:

- the tank is filled with product to be dispensed, then once the tank is filled with product, the at least one opening is closed, then

- the device is placed with the head upwards in a vacuum chamber with a depression, preferably of at least 0.5 bar compared to a pressure of one atmosphere, so that the air leaves the device, then

- still in the enclosure still under vacuum, the device is tilted to a new position by tilting it at least 90 degrees from the vertical, and

- While the device according to the invention is in this new position and/or while the device according to the invention is being used in this new position, the pressure is increased in the enclosure, preferably up to one atmosphere.

According to a second aspect of the invention, there is proposed a device for dispensing a fluid comprising:

- an exit,

- a pocket having an interior volume to contain a fluid, the interior volume of the pocket being delimited at least in part by a movable wall,

- a reservoir arranged to contain the fluid and comprising two openings including an upper opening oriented towards the pocket and a lower opening,

- a distribution valve which, in an open state, allows fluid to pass from the pocket to the outlet, and, in a closed state, does not allow it,

- a supply valve which, in an open state, allows the passage of the fluid contained in the reservoir towards the pocket, and which, in a closed state, does not allow it,

said lower opening being arranged to allow passage of the fluid, so as to fill the reservoir at least partially with fluid.

The reservoir can be delimited by:

- a flexible wall comprising the two openings, the upper opening facing the pocket and the lower opening, and,

- a back wall, arranged to block the lower opening.

The tank can be fitted with a neck for filling the tank.

The tank can be placed in a container, the wall can include:

• a plug arranged to block the lower opening
• means of attachment to the container

The plug, the bottom wall and its fixing means can be made in one piece.

The cap can slide with the bottom wall during the screwing of the cap on the neck.

The device may comprise a bottom wall is connected to side walls, preferably nested with the bottom wall and arranged to:

• hide or hide the tank, and
• maintain the tank before pumping operations

when the lower opening is screwed to the rigid wall

The flexible wall can be attached to the pocket:

• by welding, and/or
• by clipping, and/or
• by interlocking, and/or
• by compression of the flexible wall around its upper opening between, on the one hand, a part forming or integral with the pocket and located outside the tank and, on the other hand, a ring inserted inside the tank
• by compression of the flexible wall around its opening towards the bottom wall by the deformation of a ring of material from the bottom wall.

The area of a section of the upper opening can be at least eight times smaller than the area of a section of the lower opening.

The flexible wall can be arranged to deform so as to reduce the internal volume of the reservoir when the fluid exits from the reservoir.

The device can be arranged to immobilize the reservoir in rotation and/or in translation relative to the container when the neck is closed after filling the reservoir and while the reservoir is located inside the container.

The flexible wall can be made by blowing the anti-rotation means are at least one relief such as a bump of the flexible wall.

The device may comprise a rigid wall inside which a piston slides and at least one hole made in the piston or between the piston and the side wall, said hole is arranged to bring the air out of the tank 6 when inserting part of the piston 86 into the tank.

The device may comprise a piston with two lips, a first upper lip of which is arranged to penetrate into the tank in a non-sealed manner and a second lower lip arranged to penetrate into the reservoir in a sealed manner.

The device may comprise a piston, a lower lip of which is attached to the bottom wall by elastic means arranged to disengage during introduction into the lower opening.

The device may comprise a deformable wall and a container arranged to contain the piston or the flexible walls, the deformable wall and the container being grouped together in a single piece of the same material without material discontinuity, or, manufactured in the same piece by overmolding or bi-injection.

According to a third aspect of the invention, there is proposed a device for dispensing a fluid comprising:

- an exit,

- a pocket having an interior volume to contain a fluid, the interior volume of the pocket being delimited at least in part by a movable wall,

- a tank arranged to contain the fluid, the tank being provided with a neck for filling the tank

- a distribution valve which, in an open state, allows fluid to pass from the pocket to the outlet, and, in a closed state, does not allow it,

- a supply valve which, in an open state, allows the passage of the fluid contained in the reservoir towards the pocket, and which, in a closed state, does not allow it,

- a container attached to the pocket and inside which the tank is located.

The device may comprise means for immobilizing the reservoir in rotation and/or in translation relative to the container when the neck is closed after filling the reservoir and while the reservoir is located inside the container.

The device may comprise at least one intermediate piece connecting the container to the walls of the reservoir, this intermediate piece being connected to the container and to the walls of the reservoir in a removable manner, preferably by screwing.

The device may not include any other intermediate piece connecting the container to the walls of the reservoir over at least half, or even preferably at least two thirds, of the elongation of the container and/or the walls of the reservoir from the neck but outside the neck.

According to another aspect of the invention, there is proposed a device for dispensing a fluid comprising:

- an exit,

- a pocket having an interior volume to contain a fluid, the interior volume of the pocket being delimited at least in part by a movable wall arranged to tilt and/or translate by deformation,

- a distribution valve which, in an open state, allows fluid to pass from the pocket to the outlet, and, in a closed state, does not allow it,

- a supply valve which, in an open state, allows the passage of the fluid contained in the reservoir towards the pocket, and which, in a closed state, does not allow it,

- a tank with a wall designed to contain the fluid,

characterized in that the movable wall is in continuity of material or overmoulding or bi-injection with the wall of the reservoir and/or with a wall surrounding a wall delimiting an internal volume of the reservoir.

The dispensing valve can be located inside a part carried by the movable wall.

The mobile wall can be in continuity of material or overmoulding or bi-injection with the part in which the dispensing valve is located.

According to another aspect of the invention, there is proposed a device for dispensing a fluid comprising:

- an exit,

- a pocket having an interior volume to contain a fluid, the interior volume of the pocket being delimited:

• partly by a cap comprising a movable wall arranged to tilt and/or translate and/or deform by pressing on a bearing surface (25) so as to modify the interior volume of the pocket,
• partly by a bottom wall inserted into the cap

- a distribution valve which, in an open state, allows fluid to pass from the pocket to the outlet, and, in a closed state, does not allow it,

- a tank with a wall designed to contain the fluid,

- a supply valve which, in an open state, allows the passage of the fluid contained in the reservoir towards the pocket, and which, in a closed state, does not allow it,

characterized in that the bottom wall comprises three distinct parts:

• a central part partly delimiting the interior volume of the pocket and spaced from the cover so that this space at least partly defines this interior volume between the cover and this central part of the bottom wall
• an intermediate part, surrounding the central part of the bottom wall, and arranged to be pressed against the cap, with an intermediate space between the cap and the bottom wall of less than two millimeters, and
• a peripheral part, surrounding the intermediate part of the bottom wall, and arranged to form with the cap at least one closed loop sealing line between the cap and the bottom wall

the intermediate part having an area greater than or equal to 400 square millimeters and/or greater than the area of the central part of the bottom wall.

The cap and the bottom wall can be arranged so that the bottom wall is mounted in the cap according to an assembly for insertion into the cap on the side of the at least one sealing line and according to an insertion direction, the bearing surface and the outlet preferably both being located on the top of the cap so that:

• The device is arranged so that the fluid to be dispensed exits through the outlet with a component along the direction of insertion representing at least 30% of the exit direction vector of the fluid to be dispensed, and
• the bearing surface is arranged to be moved by a force having a component opposite to the direction of insertion and representing at least 20% of the vector of this force.

The bottom wall may have a convex domed shape on the side of the interior volume of the pocket.

The cap may have a concave convex shape on the side of the interior volume of the pocket.

The majority of the interior volume of the pocket may be located in at least one cavity extending into the bottom wall towards the inside of the bottom wall.

The device according to the invention may not include a weld between the bottom wall and the cap.

The support surface may comprise structures making it possible to visualize this support surface.

According to another aspect of the invention, there is provided a device for dispensing a fluid, comprising:

- a pocket having an interior volume arranged to contain the fluid.

- a support surface arranged to, under the exertion of pressure, reduce the interior volume of the pocket,

- an exit,

- a distribution valve, and which in an open state, allows a passage of fluid from the interior of the pocket towards the outlet, and, in a closed state, does not allow a passage of fluid from the interior of the pocket towards the exit

- a reservoir

- a supply orifice connecting the tank to the interior volume of the pocket,

- a headdress

- an insert

the insert being inserted into the cap along a direction of insertion such that the interior volume of the pocket is delimited at least in part between the cap and the insert

the reservoir being contained at least partly in the insert.

At least 20% of the internal volume of the tank can be contained in the insert.

The interior volume of the tank can sink at least 20mm or 25mm or 30mm or even 35mm inside the insert.

The supply valve can be carried by the insert.

The dispensing valve can be carried by the cap.

The output can be carried by the cap.

The outlet can carry an applicator and/or a dispensing surface.

The interior volume of the tank can be delimited at least in part by the insert.

The interior volume of the reservoir can be delimited at least in part by a flexible wall contained at least in part in the insert.

The pocket can surround the reservoir 360° around the reservoir.

The tightness of the interlocking of the insert in the cap can be ensured by at least one sealing contact line, the interior volume of the pocket preferably being at least twice as small as the interior volume of the cap delimited by a plane passing through the at least one line.

The pocket :

- can be distributed over at least 30% of the height of the device along the direction of insertion, and/or

- can be at least 30 or 40 mm high along the direction of insertion.

The insert may extend outside of the cap.

The device according to the invention may comprise a vent connecting the exterior of the device to the interior of the insert.

According to another aspect of the invention, there is provided a distributed fluid comprising:

• a pocket having an interior volume arranged to contain the fluid,
• a support surface arranged to, under the exertion of pressure, reduce the interior volume of the pocket by displacement of a deformable or mobile wall,
• an exit,
• a dispensing valve, and which in an open state allows a passage of fluid from the interior of the pocket towards the outlet, and, in a closed state, does not allow a passage of fluid from the interior of the pocket towards the exit
• a reservoir
• a supply orifice connecting the reservoir to the interior volume of the bag,

the device according to the invention further comprises a button equipped with a screw thread and screwed to an element integral with the deformable or mobile wall, said screw thread being arranged to adjust a maximum possible amplitude of the movement of the button on the wall , and therefore set a maximum quantity of product delivered by the outlet of the device according to the invention when pressing on the bearing surface.

All the preceding technical characteristics can be claimed independently of each other.

Description of figures and embodiments

Other advantages and particularities of the invention will appear on reading the detailed description of implementations and non-limiting embodiments, and of the following appended drawings:

there is a profile sectional view of the first embodiment of a device 101 according to the invention, the reservoir being reduced in its length, cap open,

there is a perspective view of the first embodiment of the device 101 according to the invention, the cap being removed,

there is a profile sectional view of the first embodiment of a device 101 according to the invention, the reservoir being reduced in its length, cap dislocated, open,

there is a partial profile sectional view of the first embodiment of a device 101 in a first cap variant,

there is a partial profile sectional view of the first embodiment of a device 101 in a second cap variant,

there is a perspective partial sectional view of the first embodiment of a device 101 with its filling pipe and its cap 310 disassembled in a third variant,

there is a perspective view of the tip 89 of the variant of the first embodiment of a device 101 of the ,

there is a profile sectional view of a second embodiment of a device 102 according to the invention,

there is a profile section of the second embodiment of a device 103,

there is a side sectional view of part of the second embodiment 103 of the device according to the invention,

there is a side sectional view of part of the second embodiment of the device 103 according to the invention,

there is a side sectional view of part of the second embodiment of the device 103 according to the invention,

there is a side sectional view of part of the second embodiment of the device 103 according to the invention,

there is a side sectional view of part of the second embodiment of the device 103 according to the invention,

] there is an exploded perspective view of the second embodiment of the device 103 according to the invention without the dispensing part,

there is a side sectional view of the second embodiment of a device 104 according to the invention.

there is a zoom of a profile section of part of the second embodiment of the device 104 according to the invention,

there is a zoom of a profile section of part of the second embodiment of the device 104 according to the invention in a variant with the modified piston 86,

there is a perspective view of the piston 86 of the variant of the ,

there is a side sectional view of the second embodiment of a device 105 according to the invention.

there is a profile sectional view of the second embodiment of the device 105 according to the invention in a variant of the bottom wall,

there is a perspective view of the second embodiment of the flexible wall of the device 105 according to the invention,

there is a profile sectional view of the second embodiment in a tank variant of the device 105 according to the invention,

there is a side sectional view of the second embodiment of the reservoir of the device 105 according to the invention,

] there is an exploded perspective view of the second embodiment of the device 105,

there is a profile sectional view of the second embodiment of the device 105 according to the invention in its flat version,

there is a zoom of a profile section of the second embodiment of part of the device 105 according to the invention.

there is a zoom of a profile section of the second embodiment of part of the device 105 according to the invention,

there is a zoom of a profile section of the second embodiment of part of the device 105 according to the invention,

there is a side sectional view of the second embodiment of a device 106 according to the invention.

there is a side sectional view of the second embodiment of a device 106 according to the invention

there is an exploded perspective view of the second embodiment of device 106.

there is a zoom of a profile section of the second embodiment of part of the device 106 according to the invention

there is a zoom of a profile section of the second embodiment of part of the device 106 according to the invention

there is a zoom of a profile section of the second embodiment of part of the device 106 according to the invention

there is an exploded perspective view of the second embodiment of part of device 106 in a non-cylindrical version,

there is a side sectional view of the second embodiment of a device 107 according to the invention.

there is a side sectional view of the second embodiment of part of the device 107 according to the invention,

there is a profile sectional view of the second embodiment of the device 107 according to the invention,

there is a side sectional view of the second embodiment of part of the device 107 according to the invention,

there is a profile sectional view of a third embodiment of a device 1060 according to the invention,

there is an exploded perspective view of the third embodiment of the device 1060 according to the invention,

there is a profile sectional view of a fourth embodiment of a device 4000 according to the invention,

there is a profile sectional view of a detail of a part of the fourth embodiment of the device 4000 according to the invention,

there is a profile sectional view of a fifth embodiment of a 5000 device according to the invention,

there is a front sectional view of a detail of a part of the fifth embodiment of the device 5000 according to the invention

there is a profile sectional view of a sixth embodiment of the device 6000 according to the invention,

there is a top section view of a detail of a part of the sixth embodiment of the device 6000 according to the invention,

there is a top sectional view of a detail of a part of the sixth embodiment of the device 6000 in a variant according to the invention,

there is an exploded view of a detail of part of the sixth embodiment of the device 6000 according to the invention,

there is a view of a detail of part of the sixth embodiment of the device 6000 according to the invention,

there is a profile sectional view of a seventh embodiment of the device 7000 according to the invention,

there is a zoom of part of the profile section of the device 7000 according to the invention,

there is a profile sectional view of an eighth embodiment of the device 8000 according to the invention,

there is a zoom of part of the profile section of the device 8000 according to the invention,

there is a profile sectional view of a ninth embodiment of the device 9000 according to the invention,

there is an exploded view of part of the device 9000 according to the invention,

there is a side view of an applicator variant of the 9000 device according to the invention,

there is a side view of another applicator variant of the 9000 device according to the invention,

there is a side view of a tenth embodiment of a device 10000 according to the invention,

there is a side view of an eleventh embodiment of a device 11000 according to the invention,

there is an exploded view of part of the device 11000 according to the invention,

there is a side view of a twelfth embodiment of a 12000 device according to the invention,

there is an exploded view of part of the device 12000 according to the invention,

there is a partial side view of a thirteenth embodiment of a 13000 device according to the invention,

there is a perspective view of part of the device 13000 according to the invention,

there is a profile sectional view of an embodiment 14000 of the device according to the invention,

there is a side sectional view of part of embodiment 14000 of the device according to the invention,

there is an exploded perspective view of the different parts of embodiment 14000 of the device according to the invention,

there is a profile sectional view of an embodiment 15000 of the device according to the invention,

there is a profile sectional view of an embodiment 16000 of the device according to the invention,

there is a side sectional view of part of embodiment 16000 of the device according to the invention,

there is an exploded perspective view of the different parts of embodiment 16000 of the device according to the invention,

there is a profile sectional view of an embodiment 17000 of the device according to the invention,

there is a side sectional view of embodiment 17000 without charging connector 225,

there is a partial sectional side view of a variant of embodiment 17000 at the level of the wall 22,

there illustrates the implementation of a method according to the invention in one embodiment of a device according to the invention,

there illustrates the implementation of a method according to the invention in one embodiment of a device according to the invention,

there is a profile sectional view of another embodiment of the device according to the invention,

there is a profile sectional view of another embodiment of the device according to the invention,

there is a side sectional view of an alternative embodiment device according to the invention,

there is a disassembled perspective view of another embodiment of the device according to the invention,

there is a profile sectional view of the device embodiment according to the invention of the , but assembled,

there is a cross section of the pocket of the

There is a partial section of a variant of the device 72 at the bearing wall.

there is a button profile sectional view 162 added on any embodiment or variant of device according to the invention compatible

there is a profile sectional view of another button variant 162 added to any compatible embodiment or device variant according to the invention

there is a perspective view with part of button 162 of the cut out

there is a perspective view of a dispensing valve 5,

there is a front sectional view of the valve 5 of the at its junction element 115.

These embodiments being in no way limiting, variants of the invention may in particular be considered comprising only a selection of characteristics described or illustrated below isolated from the other characteristics described or illustrated (even if this selection is isolated within a sentence including these other features), if this selection of features is sufficient to confer a technical advantage or to differentiate the invention from the state of the prior art. This selection includes at least one preferably functional feature without structural details, and/or with only part of the structural details if only this part is sufficient to confer a technical advantage or to differentiate the invention from the state of the art anterior.

We will first describe, with reference to Figures 1 to 3, a first embodiment of device 101 according to the invention for dispensing a fluid.

Unless otherwise stated and in a purely illustrative manner:

• each valve of the device 101 (preferably flexible) is typically made of thermoplastic elastomer (TPE) or (TPO)
• all the other rigid parts of the device 101 are made of polypropylene or polyethylene
• the reservoir can be a multilayer film made up of different materials, or preferably materials from the polyolefin family.

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

The device 101 for dispensing a fluid comprises a pocket 2 having an interior volume arranged to contain the fluid, the interior volume being delimited at least in part by a deformable wall 22. The deformable wall is optional. In general, we speak of a mobile wall 22, because it is the pocket which is deformable, whether by a deformable wall or by rigid walls having a relative movement such as in a piston.

The pocket 2 is formed by a bottom wall 21 (also called pocket wall 21) and by the flexible deformable wall 22.

The pocket walls 21 and the deformable wall 22 face each other.

The deformable wall 22 has a concave shape oriented towards the bottom wall 21.

The deformable wall 22 is fixed or welded to the bottom wall 21.

The bottom wall 21 is a rigid wall, that is to say more rigid than the wall 22.

The walls 21 and 22 are for example made of polypropylene or polyethylene.

The device 101 comprises a dispensing part 23 comprising a dispensing housing 8. The pocket 2 is connected to the dispensing housing 8.

The device 101 comprises a support surface 25 arranged to, under the exertion of pressure, reduce the interior volume of the pocket 2 by deforming the deformable wall 22.

Device 101 includes an output 24.

Exit 24 leads to the outside of device 101.

The outlet 24 is preferably located on the distribution part 23.

The device 101 comprises a dispensing orifice 18 connecting the pocket 2 to the dispensing housing 8.

The device 101 comprises a dispensing valve 5 located in the dispensing housing 8, and which in an open state, allows a passage of fluid from the interior of the pocket 2 to the outlet 24 passing through the dispensing orifice 18 and by the distribution housing 8, and, in a closed state, does not allow a passage of fluid from the inside of the pocket 2 towards the outlet and through the distribution housing 8.

The support surface 25 is arranged to, under the exertion of pressure, reduce the interior volume of the pocket 2 by deforming the deformable wall 22, more precisely by crushing it in the direction of the pocket wall 21

The dispensing part 23 is arranged to, by exerting pressure on the bearing surface 25, move at least according to a translational movement.

The deformable wall 22 has a shape memory. When this wall 22 is not subjected to any external constraint, it resumes or remains in its shape (preferably concave) which maximizes the volume of the pocket 2.

The device 101 comprises a supply port 41 connected with a reservoir 6 of fluid.

The reservoir 6 is delimited at least in part by a flexible wall 108 or a flexible bag 14, typically a multilayer film.

The device 101 comprises a supply orifice 41 connecting the reservoir 6 to the interior volume of the pocket 2. The orifice 41 coincides with an opening 124 of the reservoir 6 connecting it to the pocket 2.

The device 101 comprises a supply valve 4 which, in an open state, allows a passage of fluid from the reservoir 6 towards the interior of the pocket 2 via the supply orifice 41, and, in a closed state , does not allow a passage of fluid towards the interior of the pocket 2 passing through the supply orifice 41.

The supply valve 4 is located inside the pocket 2 and is arranged for:

• In its closed state, press against the feed port 41, and
• In its open state, move away from the feed port 41.

The supply valve 4 (movable between its closed and open positions) is, in its closed state, held pressed against a stationary part (called the supply seat, which at least partially surrounds the periphery of the supply orifice 41 associated) and "rigid" (i.e. not made of flexible material) of an internal wall of the pocket 2. More precisely, the supply valve 4 comprises a membrane which, in the closed state of the supply valve 4, is held pressed against the feed seat, and moves away from this feed seat in its open state.

The feeding seat is located inside pocket 2, on pocket wall 21.

At rest, that is to say without the device 101 undergoing stress or external force, the valve 5 is in its closed state.

Preferably, even if it is less essential, at rest, that is to say without the device 101 undergoing any constraint or external force, the valve 4 is also in its closed state.

When bag 2 is filled with fluid to be dispensed and the volume of bag 2 decreases (for example due to an increase in pressure on bearing surface 25):

• dispensing valve 5 moves away from dispensing seat 13 and valve 5 is in its open state; fluid exits through outlet 24 and pocket 2 empties at least partially,
• the supply valve 4 is pressed against the supply orifice 41 and the valve 4 is in its closed state; fluid cannot (or hardly ever) escape from pocket 2 to tank 6.

When bag 2 is filled with fluid to be dispensed and the volume of bag 2 increases (for example by releasing pressure on bearing surface 25):

• the dispensing valve 5 presses against the dispensing seat 105 and the valve 5 is in its closed state; fluid cannot pass from pocket 2 to outlet 24
• the supply valve 4 is "sucked in" and moves away from the supply port 41 and the valve 4 is in its open state; fluid can pass from conduit 6 to pocket 2 so as to fill pocket 2.

A distribution channel connects outlet 24 to the inside of pocket 2. This distribution channel includes housing 8.

The bottom wall 21 is integral with a tip 89 also called "eye" 89.

The device 101 comprises the reservoir 6 delimited by the walls 14, 108 which are fixed to the end piece 89, or more precisely a flexible bag 14, 108 welded to the end piece 89.

Bag 2 is located inside reservoir 6 or bag 14.

Outlet 24 is arranged to distribute fluid in a direction substantially parallel to bearing surface 25.

A cap 77 to block the outlet 24 is arranged to pass between two positions:

• A closed position in which a part 771 (nipple) of the plug 77 is inserted into the outlet 24 so as to block or protect the outlet 24 from dirt, the distance between the closure of the dispensing valve 5 is at a distance of less than 6 mm or even less than 4 mm from the outlet 24. Grooves in the inner perimeter of the outlet 24 allow, when the part 771 (nipple) of the plug 77 (or in general any valve or plug 77) is inserted in the outlet 24 so as to block or protect the outlet 24 from dirt, prevent the passage of the fluid (liquid, cream or gel) to be dispensed but leave an air passage through the outlet 24;
• An open position (shown on the ) in which this part 771 of plug 77 is no longer inserted into outlet 24.

Pocket 2 is located inside tank 6.

The device 101 comprises the supply valve 4 which, in an open state, allows a passage of fluid from the supply conduit towards the inside of the pocket 2 passing through the supply orifice 41, and, in a closed state, does not allow a passage of fluid from the supply conduit to the inside of the pocket 2 through the supply orifice.

The supply valve 4 is integral with the distribution valve 5.

The supply valve 4 and the distribution valve 5 are in a single piece of a single material.

The part 23 and the pocket wall 21 are in one and the same piece with no material discontinuity.

The end piece 89 and the part 23 are in one and the same piece without material discontinuity.

There are one or two filling holes 87, 87b each opening onto the inside of the reservoir 6.

Preferably, these filling holes are two in number and are located on either side of the outlet 24.

These filler holes go through part 89.

A single plug 310 is arranged for simultaneously:

• Plug the filling hole(s), and
• Plug and/or protect exit 24.

Cap 310 includes a cap 77 which is removable by means of a hinge.

The stopper 310 comprises 2 cylindrical pins 313 which fit together with a slight tightening (preferably with a snap) in the end piece 89 at the level of the filling holes 87 and 87b in order to adjust and precisely maintain the stopper 310 with the 'with the end piece 89 during assembly. This is the predominant means of fixing in the assembly of the plug 310 on the end piece 89, additional independent clips make it possible to keep the fitting assembled. The diameter of the pins 313 is preferably more than 3 mm and even more than 4 mm. Preferably the two holes 87, 87b are open, however in a version not shown one of the holes 87 or 87b is not open, this non-open hole is called adjustment or positioning hole.

The end piece 89 comprises 2 lateral notches 130 arranged to hold the device during filling and/or closing by fitting the stopper 310 into this end piece 89. Typically the end piece 89 is arranged to slide in the rails of a device for conditioning. The notches are located on the side ends of the nozzle 89 towards the side edges of the reservoir 14.

The cap 310 comprises a housing 312 arranged to receive the end of the distribution piece 23 provided with the outlet 24. The distribution piece 23 passes through the cap 310.

FIGS. 3a and 3b are two variants of the cap 310 of the device 101. In these variants the cap 310 comprises an applicator 208 formed in the cap (at least in part) with a domed shape 308 or with a beak shape 309. The housing 312 is located in the applicator 208 and is arranged to receive or fit together with the dispensing part 23. The housing 312 at least partially surrounds the dispensing valve 5 and/or the dispensing housing 8.

The bag 14 is welded to the eye 89 more precisely on fins. In another variant, the eye comprises a welding wall extending along the axis of the distribution channel 114, the cavity formed between the welding wall and the distribution piece 23 is hidden by the plug 310.

With reference to the , the applicator 208 comprises a domed shape 308 at least 4 mm thick and even at least 8 mm thick allowing the product to be dispensed to be spread and/or a part of a body to be massaged with the product to be distributed. A removable cover, not shown, makes it possible to protect the applicator 208. This applicator may comprise at the level of the outlet 24 or of the orifice 24 a layer 315 which may be a metal layer, a layer of foam or else a layer of fabric. This layer 315 covers the orifice 24 if for example it is made of foam or fabric. The device can comprise several orifices 24. The at least one orifice 24 can be covered by this layer of foam or fabric. This layer can be glued, ultrasonically welded or even maintained by an ultrasonically welded frame. The pins 313, the applicator 208 (without the layer 315) and the housing 312 are made in a single piece by injection molding PE (Polyethylene) or PP (Polypropylene).

With reference to the the applicator 208 of the cap 310 forms a spout 309 arranged to dispense product precisely. The end of the spout carries a pad 316 which can be made of foam or fibers to dispense, for example, a gloss or lipstick. The outlet 24 is at the end of a rod in the buffer 316. Several small holes can be made in this rod so as to homogenize the distribution of the product on the buffer. In a version without buffer 316, outlet 24 is located at the end of spout 309. The dispensing part does not pass through the cap. The plug 310 further comprises a plug 77 to plug the outlet 24, this plug 77 is removable by means of a flexible link connected to the foot of the spout 309. The pins 313, the applicator 208 (without the buffer), the housing 312, the cap 77, and the flexible link are made in one piece by injection of PE (Polyethylene) or PP (Polypropylene).

The device according to the invention may include an air pocket, and this air pocket may include an extraction hole 11 arranged to extract the air from this pocket. This extraction hole is located at a distance of less than 3 cm from at least one of the filling holes, so that the fluid to be dispensed does not come out through the filling hole when placing the device under vacuum.

The wall 22 is provided with a skirt 155 having a height at least at least as high, in the same direction of measurement, as the height at the entrance to the housing 8 on the side of the pocket 2 (i.e. minimum of 2 or 3 mm).

This skirt 155 allows the insertion of the valve 5 into the housing 8 from inside the pocket 2 perpendicularly or substantially perpendicular to the direction of measurement of the height of this skirt 155.

The tip 89 sinks into the plug 310. The dispensing surface 207 is formed by the plug 310 and the tip 89.

Housing 312 includes plug 310 between pins 313.

Figures 3c and 3d describe another variant of device 101 which will only be described for its differences with respect to the variant of Figures 2 and 3.

In this variant, the tip 89 comprises three parts:

• An outer crown
• A central part (also part of the distribution part 23) which carries the outlet 24,
• At least one (preferably at least two, typically three) connecting walls 9 connecting the outer crown of the end piece 89 to the central part of the end piece 89,

these connecting walls 9 being arranged to leave at least one empty space 15 between the outer crown of the endpiece 89 and the central part of the endpiece 89, this at least one empty space 15 being arranged to allow passage of a filling rod 46 which, passing through this at least one empty space 15, penetrates to the inside of the tank 6 (typically along the outside of the pocket 22).

It is thus noted that the pocket 22 does not have a form of symmetry of revolution around the longitudinal axis of the device 101 to allow the passage of the rod 46.

Thus, a method according to the invention typically comprises, while the cap 310 is dismantled from the rest of the device 101, a filling of the tank 6 by the filling pipe 46 which passes through this at least one empty space 15 and penetrates up to inside the tank 6 (typically along the outside of the pocket 22), and thus performs a filling of the tank 6 by a fluid coming from the outside of the device 101 passes through the pipe 46 into the tank 6.

After this filling, the stopper 310 can be reassembled on the neck 85. For this, the neck 85 comprises an external screw thread 16, which is advantageous compared to an internal screw thread which would push the tip 89 and the outlet 24 inside the device 101 and would make the latter less compact.

The neck 85 is integral (and in the extension) of the walls of the tank 6.

It is further noted that this space 15 allowing the passage of the rod 46 for filling the tank 6 is also present on the .

Figures 4 to 33 illustrate a second embodiment of six devices 102, 103, 104, 105, 106, 107. Unless otherwise stated or more specifically, only the differences with the device 101 of the will be described.

Each of the device embodiments 102, 104, 105, 106, 107 for dispensing fluid includes:

- exit 24,

- the pocket 2 having an interior volume to contain a fluid, the interior volume of the pocket 2 being delimited at least in part by the movable wall 22,

- the reservoir 6 arranged to contain the fluid and comprising two openings, the upper opening 124 of which is oriented towards the pocket 2 and a lower opening 87, said reservoir 6 being arranged to reduce its internal volume when the fluid exits from the reservoir,

- the distribution valve 5 which, in an open state, allows fluid to pass from the pocket 2 to the outlet 24, and, in a closed state, does not allow it,

- the supply valve 4 which, in an open state, allows the passage of the fluid contained in the reservoir 6 to the pocket 2, and which, in a closed state, does not allow it.

The lower opening 87 is arranged to allow a passage of the fluid, preferably a passage of a cannula (or filling pipe) transporting the fluid, so as to fill the reservoir 6 with fluid at least partially up to at least the supply valve 4 so that the fluid is in contact with the supply valve 4 and preferably so as to also fill the internal volume of the pocket 2 with at least part of the fluid.

The supply valve is arranged to let the cane or cannula pass, for example by bending.

With reference to the , the dispensing part 23 (also called dispensing head 23) comprises:

• a 70 cap, and
• optionally an insert 71.

Note that the deformable wall 22 is not movable in the cap 70. There is no part of the movable pocket function in the cap 70. The cap 70 is mounted superimposed on the flexible wall 22. The wall 22 is a bellows or the base of a dome with an upper edge 228 connected to the cap 70 in continuity of material or overmolding or bi-injection, and a lower edge 229 connected to the wall 118 of reservoir 6 in continuity of material or overmolding or bi-injection.

The junctions and/or connection with the edges 229 and 228 are sealed.

The deformable wall 22 is mounted superimposed on the wall 118 of the reservoir 6.

The dispensing piece (23) comprising a cap (70)

the support surface (25) forming part of the distribution piece (23)

the housing (8) being located inside the cover (70)

the cap (70) being mounted superposed on the deformable wall (22).

the deformable wall (22) and the cap (70) are:

- grouped together in a single piece of the same material without material discontinuity, or,

- manufactured in the same part by overmolding or bi-injection.

The dispensing valve 5 is in a housing located inside the at least one part 70 (of the dispensing piece 23) having a continuity of material with the wall 22, this housing is lateral and is positioned between the pocket 22 and the outlet 24. The connection between the cap 70 and the insert is sealed so as to have a pocket 38 of air or gas sealed.

The reservoir 6 arranged to contain the fluid and comprising two openings, the upper opening 124 of which is oriented towards the pocket 2 and a lower opening 87, said reservoir 6 being arranged to reduce its internal volume when the fluid exits from the reservoir during pressing on the wall 25 once the device has been initiated, this phase is subsequently called the pumping operation.

Reservoir 6 comprises a rigid wall 99 inside which slides a piston 86.

The piston 86 is between the tank 6 and a bottom wall 91. The piston 86 is inserted into the opening 87 after filling the tank 6 through the opening 87, it forms a plug 310. The tank 6 has a cylindrical shape and elongated

Reservoir 6 includes a side wall 118 or container 118 between bottom wall 91 and pocket wall 21.

The side wall 118 is part of a part 10 arranged for:

- contain the piston 86,

-maintain the pocket wall 21 by tightening,

- form the wall 22 by continuity of the same material or in two different materials by bi-injection at the junction 229.

The deformable wall 22 and the wall 10 are:

- grouped together in a single piece of the same material without material discontinuity, or,

- manufactured in the same part by overmolding or bi-injection.

At least one hole 95 made in the piston 86 or between the piston and the wall 99 allows the air to come out of the reservoir 6 when inserting a part of the piston 86 (more precisely the upper part) into The reservoir. Thus the piston 86 comprises two lips of which a first upper lip 88 (oriented towards 124) is arranged to penetrate into the reservoir in a non-sealed manner since it is provided with at least one hole 95, and a second lower lip 28 (oriented towards the bottom 91) arranged to enter the tank 6 in a sealed manner. Note that the piston 86 is made of a single piece, it is not fitted with a valve.

In order to reduce the air, the piston preferably comprises a domed wall 26. The dome shape 26 makes it possible to reduce the air between the piston and the product and to expel the cream or the product to be dispensed on the sides against the wall 99 when inserting the piston into the tank.

As long as the lower lip 28 of the piston is not fitted into the internal walls 99 of the reservoir 6, the air contained in the reservoir can escape from the device.

The at least one hole 95 is arranged to also allow passage of the fluid between the reservoir 6 and a sealing zone 97 between the piston 86 and the wall 99.

Typically there are several holes 95. Apertures 95 may be slots around upper lip 88.

With reference to FIGURES 5 to 10, the reservoir 6 is delimited at least in part by a movable piston 86 arranged to move so as to reduce the internal volume of the reservoir 6 when the fluid exits from the reservoir 6, this piston 86 being provided with the lower opening 87, the lower opening 87 being closed by a removable plug 310.

The removable cap 310 is screwed onto the piston 86.

The piston 86 is between the tank 6 and a bottom wall 91, said preferably rigid bottom wall 91 being provided with means 93 to block the rotation of the piston 86 during the screwing of the cap 310 on the piston 86 when the piston 86 is in contact with the bottom wall 91.

The bottom wall 91 is provided with fixing means 45 to fit together preferably by snap-fastening with the rigid wall 118 of the tank.

Different variants of this embodiment can be combined with each other:

• in the variant illustrated on the the means 93 typically comprise, for example, a slot into which a part of the piston 86 is inserted, and/or
• in the variant illustrated on the the means 93 typically comprise, for example, clipping means, and/or
• the piston can have a curved shape (disc, ellipse, or other) or a polygon. In the variant illustrated in the , the piston 86 has, in a cross-sectional view perpendicular to a direction of displacement of the piston 86 along a wall 99, a shape of a polygon comprising several sides connected by angles, the device further comprising a distribution piece of force 33 arranged to press piston 86 against wall 99 at several (preferably all) sides of the polygon but outside the corners of the polygon. In another variant, the distribution part 33 can be replaced by a variable thickness of the walls of the piston 86.

FIGURES 11 and 12 illustrate one embodiment of a device 104 for dispensing fluid. Only its differences with the device 103 of FIGS. 5 to 10 will be described.

Referring to Figures 11 to 12, the piston 86 is not drilled and does not include a filling opening, the filling opening 87 is formed by the lower edge of the walls 118 (more precisely the opening 87 is cylindrical ).

After the reservoir has been filled, the piston 86 is placed therein, more precisely it is placed by sliding in the cylinder 87, 118, preferably during this step the bottom wall 91 is fixed to the piston.

The lower lip 28 is attached to the bottom wall 91 by elastic means 32 at least before the introduction into the opening 87.

During the introduction into the opening 87 the lip 28 provided with the elastic means 32 is deformed which has the effect of the displacement of the elastic means 32 towards the axis of the piston. This movement has the effect of separating the elastic means 32 from the bottom wall 91. In order to accentuate this deformation, it is advantageous to add a local surplus of material to the internal walls 99 of the reservoir 6, such as a ring of material 29. The elastic means 32 are arranged to detach easily from the bottom 91 from the first pumping operations (before the first 10 pumping operations), that is to say when the wall 22 is crushed once the device started.

Projecting walls 31 of the bottom 91 are arranged to hook with the elastic means 32 and raise the piston 86 relative to the bottom wall 91. At least a part of the projecting walls 31 are introduced between the elastic means 32 and the lip 28. The elastic means 32 can be clipped onto the projecting wall 31.

FIGURES 12a and 12b illustrate part of the second embodiment of the device 104 according to the invention in a modified piston variant 86; this variant will only be described for its differences with respect to the description of figures 11 and 12.

Cap 86 includes lips.

The upper part 88 of these lips (or "upper lips") is the first to enter the tank 6 when the piston 86 is inserted through the opening 87.

The lower part 96 of these lips (or "lower lips") is the second (or last) to enter the reservoir 6 when the piston 86 is inserted through the opening 87.

The upper lips 88 are provided with reliefs or ribs or studs 197 which separate the upper lips 88 from the internal walls 118 in order to allow air or the product to be dispensed to escape from the reservoir 6 through the opening 87 passing between reliefs or ribs or studs 97 during the insertion of the piston 86 through the opening 87.

The lower lips 96 are arranged to seal the opening 87 between the inside of the tank 6 and the outside of the device once these lower lips 96 are penetrated between the walls 118 by the opening 87.

Side openings 94 inside piston 86 allow air to escape and prevent an air bubble from forming in piston 86 when inserting piston 86 through the opening 87

The piston 86 comprises means 98 for holding the piston 86 to the wall 91. There is no outer wall of the part 91 which surrounds the outside of the piston, even partially. In order to improve the holding of the piston, a wall of part 91 (not shown) can fit inside the piston 86. These holding means 98 typically include:

- a rod or other means, integral with the piston 86, and which fits or clips or attaches to the wall 91, or

- reception means in which a rod or other means, fixed to the wall 91, is fitted or clipped or fixed

the piston 26 and the wall 91 being integral during the insertion of the piston 86 into the opening 87, the piston 26 and the wall 91 being arranged to separate during the progression of the piston 86 between the walls 118 in the reservoir 6 (the wall 91 it remaining fixed) and / or by a mechanical action when closing the device.

FIGURES 13-22 illustrate another embodiment of a device 105 for dispensing fluid. Only its differences with the device 104 of FIGS. 11 to 12 will be described.

The wall 108 is flexible or mainly comprises flexible walls (hereinafter referred to as “flexible wall 108” or “wall 108”).

The tank 6 arranged to contain the fluid is delimited by:

- a flexible wall 108 comprising the two openings, the upper opening 124 facing the pocket 2 and the lower opening 87, and

- a bottom wall 91, 310 preferably removable, arranged to block the lower opening 87.

The cap 310 is integrated into the wall 91.

The flexible wall can for example be injected or thermoformed.

The area of a section of the upper opening 124 (this section being chosen to minimize the area of the upper opening 124) is at least six times (and even at least eight times) smaller than the area of a section of the lower opening 87 (this section being chosen to minimize the area of the lower opening 87).

The flexible wall 108 is arranged to deform so as to reduce the internal volume of the reservoir 6 when fluid exits from the reservoir 6.

The border 43 and/or the skirt 42 is arranged to seal between the inside of the tank and the outside of the device.

The device 105, more precisely the rigid wall 91, is arranged to maintain fixed the position of the lower opening 87 in the device 105 with respect to the position of the upper opening 124 in the device 105.

The flexible wall 108 is fixed to the pocket 2 according to a tight junction.

The flexible wall 108 comprises a cylinder 81 above the tank 6 allowing sealing. To have sealing, either this cylinder 81 is compressed (case of FIGS. 14 and 16), or it is nested (case of ). It is preferable to have a second cylinder concentric with the first cylinder 81.

The device 105 comprises means 110 (optional) for internal guiding of the cap 70 (which is the part forming the internal volume of the bag 2 and further containing the dispensing valve 5). The means 110 are arranged to guide a movement of the cap. The means 110 take the form of a low wall 110 emerging from the bottom wall 21.

Different variants of this embodiment 105 can be combined with each other:

• the flexible wall 108 is fixed to the bag 2 according to a tight junction:
  • by welding, and/or
  • by clipping (by a clip 83), and/or by interlocking, as illustrated in the variant of figure 13 and/or
  • by compression of the flexible wall 108 around its upper opening 124 between on the one hand a part forming or integral with the pocket 2 and located outside the tank 6 and on the other hand a ring 109 (and whose upper edge forms the supply seat 62 as previously described) inserted inside the tank 6, as illustrated in the variants of Figures 14 and 16, 18. In the variant of Figure 14, the ring 109 is integral with the wall rigid 91 and the ring 109 and the wall 91 form the same part with continuity of material, while in the variant of Figures 16 and 18 the ring 109 and the wall 91 form two separate parts without continuity of material; and or
• the flexible wall 108 and the supply valve 4 are formed in the same part with continuity of material (as illustrated in FIGS. 16 to 18) or in two distinct parts without continuity of material (as illustrated in FIGS. 13 to 15) .

Referring to Figures 19 to 22, the device 105 is "flat". In order to reduce the air trapped during closing, a retaining element 17 makes it possible to maintain the walls of the tank on the sides, but does not seal. Indeed, sealing is achieved by axial crushing instead of lateral crushing. If the tank is injected into a flexible material, there is no need for an additional seal, but if the tank is thermoformed, it is preferable to add a seal 39 if the precision of the injected parts 93 and 122 is not sufficient. The seal 39 comprises at least one flexible face in contact with the wall 108 in order to ensure a seal between the tank 6 and the outside.

In the case of a flexible wall 108 obtained by thermoforming in order to refine its thickness, typically around 0.2 mm, a deformation of the raw material (typically a sheet or a film) of a thickness deeper than 0.2 mm is proposed. thickness of the tank thus forming a "thick part" (for example a deformation 1.5 or 2 times deeper) then a partial cutting of this "thick part" to extract the pocket 108 from it.

Note that the bottom wall 21 includes a ring 48 at the level of the opening 104, this ring is deformed (in a direction opposite to the center of the hole 41) preferably by ultrasound and is arranged to compress the wall 108 of the tank.

THE through 29 illustrate another embodiment of a device 106 for dispensing fluid according to the second aspect. Only its differences with the device 105 of FIGS. 13 to 22 will be described.

With reference to the , the wall 91 is screwed onto a neck 87 of the tank 6.

The lower opening 87 takes the form of a neck referenced 85 or 87.

This neck 87 of reservoir 6 forms an inlet orifice to fill reservoir 6 when this neck is not screwed to wall 91.

The wall 91 therefore forms a stopper for this neck 87. The wall 91 integrates in a single piece, preferably in the same material, the stopper 310 arranged to be screwed onto the neck 87 and fixing means 45 arranged to fit together with the wall 12, preferably by snap-fastening.

The wall 91 is connected to side walls 12 arranged for, when this neck is screwed to the wall 91:

• hide tank 6, and
• hold tank 6.

The wall 12 surrounds a wall 108 delimiting an internal volume of the tank 6 (delimiting at least 50% and even at least 75% of the internal volume of the tank 6).

These side walls 12 are nested or snapped with the wall 91. the wall 91 comprises snap-fastening means 45.

The tank is blown in PE (Polyethylene) or PP (Polypropylene).

Reservoir 6 includes a bump 60 arranged to be welded to bottom wall 21.

The wall 12 and the wall 21 form a container 122 arranged to contain the reservoir 6.

The side wall 12 is part of a part 100 or wall 100 arranged for:

-contain the flexible walls 108,

-maintain by tightening the pocket wall 21

- form the wall 22 by continuity of the same material or in two different materials by bi-injection at the junction 229.

The deformable wall 22 and the wall 100 are:

- grouped together in a single piece of the same material without material discontinuity, or,

- manufactured in the same part by overmolding or bi-injection.

The wall 91 comprises screwing means 310 making it possible to close or plug the tank 6 in a leaktight manner. During the screwing operation, the tank can lift (translate towards the wall 91) and/or deform by extending towards the bottom wall 91. Only the bottom wall 91 is rotated by an external tool (not shown) in order to close the neck of the tank 6.

Once the screwing operation is complete, an axial force on the wall 91 towards the tank makes it possible to fix the wall 91 with the wall 12.

The wall 91 comprises fixing means 45 to the container 122. The fixing means can preferably comprise interlocking, and more preferably an interlocking with snapping of the wall 91 with the container 122, more precisely with the wall 12.

The wall 91 makes it possible to close or plug the container 122, preferably in a non-airtight manner.

The deformable wall 22 and the wall 12 of the container 122 are:

- grouped together in a single piece of the same material without material discontinuity, or,

- manufactured in the same part by overmolding or bi-injection.

With reference to Figures 24 to 29, the device 106 of Figures 24 to 29 is distinguished by the following elements.

The flexible wall 108 of the tank 6 is itself enclosed in a wall 12 of a container 122.

First of all, it includes a tank anti-rotation system 6:

• In the case of the embodiment common to FIGS. 24 to 28, this anti-rotation system takes the form of:
  • At least one relief 40 of the wall 108 of the tank 6, preferably several reliefs 40 (typically hollows or bumps respectively)
  • At least one relief, preferably several reliefs (typically bumps or hollows respectively) on the wall 12 and/or 21 and/or 91 arranged to block the rotation of the reliefs of the wall 108 and therefore block the rotation of the tank 6 (preferably , the relief of the wall 12 comprises at least one fin 19 which extends along the axis of elongation of the container 122),
• in the case of the embodiment of the , this anti-rotation system comprises the square or polygonal or more generally non-cylindrical shape of the wall 108, and the square or polygonal or more generally non-cylindrical shape of the wall 12.

The walls 108 and the reliefs 40 are preferably made by injection blow molding or extrusion blow molding. It is noted that the relief(s) 40 are made on a side wall of the reservoir 108 (relative to the axis of elongation of the reservoir).

The neck 87 and the bump 60 are more rigid than the side walls of the tank 6.

The flexible side walls of the tank 6 are typically around 0.15 to 0.4 mm in order to optimize its emptying. These thin walls pose a problem of rigidity when closing the reservoir. Unlike the device of the , this anti-rotation device prevents excessive twisting of the tank (typically less than 20 degrees).

The wall 91 and the plug 310 are two separate parts.

Rails 90 allow the cap 310 to slide with the bottom wall 91. These rails make it possible to drive the cap 310 in rotation when the wall 91 is turned, this sliding prevents the reservoir from lifting when screwing, the cap 310 can translate even if the bottom wall 91 comes into contact with the end of the side wall 12 before interlocking, in particular at the level of the interlocking or snap-fastening means 45. The plug is arranged to slide with the bottom wall 21 at least at the end of tightening.

The plug 310 is held in the part 91 (for example by clipping means with a clearance allowing axial sliding) and can slide in the part 91.

The stopper is held with the wall 91 at the start of the pumping operations but can detach from the bottom 91 after a certain number of pumping operations.

The walls 108 of the tank 6 include a neck 85.

The neck 85 of the walls 108 of the tank 6 comprises threads arranged to cooperate with the plug 310.

The walls 108 are pierced opposite the neck 85 so as to form the opening 124 fixed to the bottom wall 21.

The cap 310 includes a hollow 311 so as to reduce the air in the tank 6 after closure.

The container 122 is closed by pressing on the part 91 after the screwing phase of the stopper 310 with the neck 85.

A rib or fin 19 in the container 122 is arranged to block the walls 108 of the tank 6.

With reference to the , initially the pocket wall 21 is assembled with the flexible wall 108. Then, optionally, the valve 4 is inserted, the at least assembly 21 and 108 is inserted into the container 122 up to the foot of the wall 22, the assembly being held by clamping the piece 100 with a side part of the pocket wall 21.

Note that the elements 91 and/or 310, connected to the neck 85, is an intermediate part between the walls 12 and 108. The part 91 and/or 310 is located at one of the ends of the device 106. Apart from the intermediate piece(s) 91, 310 connected to the neck 85, there is no other intermediate piece connecting the walls 12 and 108 over at least one half (or even at least two thirds) of the elongation of the walls 12, 108 from neck 85 but outside neck 85.

It is further noted that this or these intermediate pieces 91 and/or 310 are connected to the walls 12, 108 without gluing or welding or coextrusion, which is advantageous for the recycling of the device.

This or these intermediate parts 91 and/or 310 are therefore removable (by screwing, disengagement) with respect to the walls 12, 108.

The distribution valve 5 is located inside the rigid part 70 carried by the movable wall 22 so that this rigid part 70 is arranged to translate by deformation of the movable wall 22.

The wall 22 is in continuity of material or overmolding or bi-injection with the part 70.

THE to 33 illustrate another embodiment of a device 107 for dispensing a fluid according to the invention. Only its differences with the device 106 will be described.

Referring to Figures 30 to 33, the neck 85 has no screw thread. Means 84 hold reservoir 6 during insertion of plug 310.

The means 84 are a border or a hollow at the level of the neck 85.

A tool 82 keeps the means 84 stationary (attached to the neck 85) during the insertion of the stopper 310.

In the embodiment of Figures 32 and 33, the reservoir can be compressed, which allows a lower junction height between parts 12 and 91.

Conversely, in the embodiment of Figures 30 and 31, the junction height between the parts 12 and 91 must be higher because the tank is not compressible but the height of the part 91 must allow the use of tool 82.

THE and 35 illustrate another embodiment of a device 1060 for dispensing a fluid according to the invention. Only its differences with the device 106 will be described.

Referring to Figures 34 to 35, in this embodiment, the tank anti-rotation system 6 comprises:

• as shown in figures 34 and 35
  • one or more reliefs 40 (typically respectively hollow or bumps) of the wall 108 of the tank 6
  • one or more reliefs (typically bumps or hollows respectively) on the wall 12 and/or 21 arranged to block the rotation of the reliefs of the wall 108 and therefore block the rotation of the reservoir 6, (preferably these reliefs are arranged on the wall 12 and comprise at least one fin 19 which extends along the elongation axis of the device),

• in a variant not shown, it includes the square or polygonal or more generally non-cylindrical shape of the wall 108, and the square or polygonal or more generally non-cylindrical shape of the wall 12.

Unlike the previous embodiments for which the openings 87, 124 were separate and located on either side of the reservoir 6 at two different locations (preferably opposite) of the reservoir 6, the device 1060 comprises orifices 87 and 124 coincident at the same level. The bottom wall 21 acts as a rigid wall 91 is provided with screwing means 310. These screwing means 310 can be arranged to slide (more precisely the wall 44) in the bottom wall 21 in a sealed manner, this allows prevent the tank 6 from lifting when screwing the bottom wall 21. Once the screwing operation is complete (the cap skirt allowing sealing), an axial force towards the tank at the foot of the deformable wall 22 allows the snap-fastening of the head of the device 1060 (more particularly of the dispensing head) thanks to the snap-fastening means 47.

FIGURES 36 and 37 illustrate a fourth embodiment of a device 4000 according to the invention for dispensing a fluid according to the invention. Only its differences with the device 102 of the will be described.

Referring to Figures 36 to 37, in this embodiment, the pocket 2 is delimited:

- partly by the deformable wall 22, and

- partly by rigid walls of a dispensing head 400 fixed to the deformable wall 22 of the bag 2 so that the dispensing head 400 is carried by the deformable wall 22 according to different possible positions relative to the reservoir 6 including at least:

* a stable position (as shown in the ) in the absence of external force exerted on the head 400 and

* an inclined position at an angle of inclination relative to the stable position during the exercise of an external force on the head 400, so as to deform the deformable wall 22 and thus reduce the interior volume of the pocket 2 by relative to the stable position. This external force is typically applied to the head 400 by a face and/or a cheek and/or lips and/or an eye contour of a user.

The head comprises 400 a distribution surface 7 which borders or surrounds the outlet 24 preferably with a surface of at least 50mm2 and even at least 70mm2. The dispensing part 23 comprises the dispensing surface 7 and is fitted or screwed to one end of the hollow member 406, the other end of the hollow member 406 being connected to the wall 22 by continuity of material or overmolding or bi-injection. This distribution surface 7 is arranged for the massage and to exert the tilting force on the device.

The inlet valve 4 is of the "duck-bill" type, which is particularly tight and allows the introduction of a needle through the valve 4. In the present description, the "duck-bill" valve duck valve can be single-slit or cross-slit valve.

The valve 4 can be made by overmoulding on the bottom wall 21.

The bottom wall 21 forms a plug or insert for insertion into the pocket 2.

A degassing element 411 is arranged to allow gas to pass from pocket 2 to reservoir 6 when filling pocket 2 with a liquid and/or gel by means of a needle passing through valve 4 (or valve filling) inserted on the side of the reservoir 6 whose cap 91 is open and the piston 86 absent during this filling.

This element 411 typically comprises a valve or a clearance or interstice between the wall 21 and the pocket 2 or a slot in the bottom wall 21. The pocket 2 comprises degassing means 411 at the level of the bottom wall 21, the means degassing 411 are on the side of tank 6, oriented towards tank 6. With reference to the , in this embodiment, the valve 411 is stuck between the bottom wall 21 and the head 400 at the foot of the pocket 2 or between the bottom wall 21 and the wall 118. In a version not shown the valve 4 is stuck between the bottom wall 21 and the head 400 at the foot of the pocket 2 or between the bottom wall 21 and the wall 118.

The wall 22 is connected and integral with the wall 118.

The wall 22 is in continuity of material or overmoulding or bi-injection with the wall 118 of the reservoir 6 (as illustrated in the ) and/or with the wall 12 surrounding the wall 118.

The wall 118 of the tank 6 delimits the internal volume of the tank 6 (delimiting at least 50% and even at least 75% of the internal volume of the tank 6). The wall 12 surrounding a wall 118 delimiting an internal volume of the tank 6 (delimiting at least 50% and even at least 75% of the internal volume of the tank 6).

The rigid wall of the head 400 has its inclination limited by a passage hole 412 and/or by the wall 21 according to several points of contact 401 (with the hole 412), 404 (with the hole 412), 402 (with the hole 412), 403 (with wall 21). The head 400 optionally comprises in addition to part 23 a massage element 408 provided with two lateral massage faces with respect to the product outlet, the contact points are arranged to block the inclination during the massage.

The dispensing valve 5 is located inside the rigid part 400 carried by the movable wall 22 so that this rigid part 400 is arranged to tilt and/or translate by deformation of the movable wall 22.

The wall 22 is in continuity of material or overmolding or bi-injection with the part 400. Note that the axis of elongation of the head 400 is substantially the same as the axis of elongation of the tank 6.

FIGURES 38 and 39 illustrate a fifth embodiment of a device 5000 according to the invention for dispensing a fluid according to the invention. Lid 222 includes wall 22 and dispensing surface 7. Pocket 2 is formed by lid 222 fitted with bottom wall 21 extending in the same direction to form a "flat" pocket. Thereafter only its differences with the device 105 of the will be described.

In this embodiment, the valve 4 (more precisely one end) is trapped or wedged between the bottom wall 21 and the periphery or the foot of the wall 22, in particular between the bottom wall 21 and the cover 222.

A degassing element 411 is arranged to allow gas to pass from pocket 2 to reservoir 6 when filling pocket 2 with a liquid and/or gel by means of a needle passing through valve 4 inserted from the side tank 6 whose cap 91 is open during this filling. As illustrated on the , there may be several supply valves 4 and 4b used for filling associated with several degassing elements 411 and 411b.

A degassing channel 211 connects element 411 to supply port 41.

This element 411 typically comprises a valve or a clearance or interstice between the wall 21 and the pocket 2 or even a slot in the bottom wall.

The degassing means 411, 211 are preferably oriented towards the reservoir 6. It is preferable that the valve used for filling the pocket 2 be arranged so that its seat in the bottom wall 21 is at a level downwards. reservoir 6 therefore preferably like valve 4b, however at the same time it is preferable for supply valve 4 to be closest to deformable wall 22. In another variant not shown, dispensing valve 5 is further away of tank 6 than supply valve 4.

FIGURES 40 to 44 illustrate a sixth embodiment of a device 6000 according to the invention for dispensing a fluid according to the invention. Only its differences with the device 105 of the will be described.

Referring to Figures 40 to 44, in this embodiment, each means (typically in the form of a low wall) for internal guide 110 of the cap 70 is coupled to at least one rail 112 and/or one slide 113, the rails 112 and/or a slide 113 being thus arranged to guide the cap 70 on the means 110. The represents low walls 110 surrounding rails 112 of the cap 70. In an illustrated variant low walls 110 cooperate with slides 113 of the cap 70, this slide being produced by rails 112.

Each rail 112 and/or slide 113 is integral with the cap 70.

This rail/slide pair can be replaced or supplemented by another rod/cylinder pair arranged so as not to compress the product. Preferably at least one rail/slide pair is arranged to have transverse support in all directions as shown in the figure. including a dovetail type slide.

The inlet valve 4 is of the “duck valve” type, which is particularly tight and allows the introduction of a needle through the valve 4.

The distribution valve 5 comprises a nipple 90 (or a rod 90) secured to a movable member of the valve 5.

The nipple 90 is:

- partially (in particular not the end of the stud 90) included inside the deformable chamber 2 in the closed position of the dispensing valve 5, and/or

-entirely included inside the deformable chamber 2 in the open position of the dispensing valve 5.

The mobile member of the valve 5 is entirely included inside the deformable chamber 2.

Dispensing valve 5 is:

- partially (in particular not the end of the stud 90) included inside the deformable chamber 2 in the closed position of the dispensing valve 5, and/or

- entirely included inside the deformable chamber 2 in the open position of the dispensing valve 5.

The 90 nipple has an end that:

• in the closed state of the distribution valve 5, closes the outlet 24 of the chamber 2 and
• in the open state of the dispensing valve 5 is moved away from the outlet 24 of the chamber 2 relative to the closed state of the dispensing valve 5.

The mobile member of the valve 5 is arranged to move under the effect of an overpressure of the fluid, in the interior volume of the chamber 2, greater than a pressure threshold (depending in particular on the total stiffness of the return means 696 ) with respect to the state of equilibrium of chamber 2, so as to move the stud 90 away from the outlet 24 of chamber 2 so as to move the dispensing valve 5 from its closed state to its open. Such an overpressure can be caused by a reduction in the interior volume of the chamber 2 filled with fluid to be dispensed, for example when a user presses on the support surface 25.

The movable member of the valve 5 is also arranged, in other cases, to keep the valve 5 closed or to move so as to move the nipple 90 in the direction of the outlet 24 of the chamber 2 so as to move the valve from distribution 5 from its open state to its closed state.

The movable member of the valve 5 comprises at least one movable wall 91 of at least one gas pocket 92.

Each mobile wall 91 is entirely included inside the deformable chamber 2.

The at least one gas pocket 92 contains a gas (typically air) preferably without it being able to leave this pocket 92. The at least one gas pocket 92 is arranged to isolate this gas (represented by small dots in the figures) with respect to the fluid contained in the deformable chamber 2.

The gas pocket 92 is completely surrounded (along a closed loop surrounding this pocket 92 at 360° around this pocket 92) by the fluid contained in the chamber 2.

The movable wall 91 of each gas pocket 92 has a contact surface 697 arranged to be fully in contact with the fluid contained in the chamber 2.

This contact surface 697 of the pocket 92 is defined as being the surface of the wall 691 (typically less than 1 mm thick or preferably less than 500 μm) which is on a first side arranged to be in contact with the fluid contained in chamber 2 and on another side opposite the first in contact with the gas of this pocket 92; the surface of the nipple 90 is therefore not counted.

The sum of the areas of the contact surfaces 697 of the pocket(s) of gas 92 is at least 50 mm ² and even greater than 70 mm ² and even greater than 90 mm ² .

The device 6000 comprises a movable wall 691 of a gas pocket 92 aligned along an axis of elongation of the nipple 90, this axis of elongation also being an axis of displacement of the nipple 90 between the open position and the position valve closed 5.

The pressure inside each gas pocket 92 is typically:

- greater than one atmosphere and/or

- comprised in the interval between 0.9 and 1.5 atmosphere, preferably in the interval between 0.9 and 1.1 atmosphere, preferably equal to one atmosphere

The distribution valve 5 and the at least one gas pocket 92 are part of a module 693 which is inserted into the device 6000 from outside the device 6000. The module 693 is fitted into the rest of the device 6000, more exactly to the cap 70.

The module 693 nested in the rest of the device 6000 in a sealed manner.

The module 693 comprises a tank or tube 602 comprising two diameters:

• A part of smaller diameter to receive the pin 90,
• A part of larger diameter arranged to sink into the cap 70.

The module 693 comprises a cover 603 fixed (typically welded or fitted) to the tank or tube 602 and delimiting the inside of the pocket 92 with the wall 691.

The nipple 90 and/or the movable member of the valve 5 are arranged to be in contact with the fluid contained in the deformable chamber 2.

The nipple 90 is only arranged to be partially in contact with this fluid contained in the chamber 2: indeed, in the closed position of the valve 5, the end of the nipple 90 is hidden from inside the chamber 2 by exit 24.

The movable member of the valve 5 is arranged only to be partially in contact with this fluid contained in the chamber 2: indeed, the movable wall 691 has an internal wall in contact with the gas of its pocket 92. The movable wall 691 is a succession of bellows forming a thread.

The device 6000 comprises at least one return means 696 arranged to exert on the pin 90 a return force so as to push the pin 90 in the direction of the outlet 24 of the chamber 2 so as to return the dispensing valve 5 from its open position to its closed position.

The at least one return means 696 comprises a movable wall 691 in the form of bellows

The movable wall 691 is arranged to deform during its movement.

Each gas pocket 92 facilitates, for a user, the passage of the valve 5 from its closed state to its open state, while ensuring good closure of the valve 5 in its closed state.

The interior volume of the deformable chamber 2 is delimited at least in part by the cap 70.

The interior volume of the deformable chamber 2 is delimited at least in part by the bottom wall 21 forming a plug inserted into the pocket 2.

The dispensing seat is formed by all the contact points, of module 693, between dispensing valve 5 and module 693 when valve 5 is in its closed state.

Note that there is no valve on the fluid circulation path between inlet 41 (and/or valve 4) and distribution valve 5.

Note that there is no mechanical connection between the cap 70 and the at least one pocket 92, the only connection between the wall 25 and the at least one pocket 92 being via the fluid to be dispensed.

Referring to Figures 43 and 44 the outlet 24 is delimited by a perimeter comprising:

- a so-called flexible part 694 (for example in TPO)

- a so-called rigid part 695 (for example in Polypropylene) in a more rigid or hard material than the flexible part 694 (the two hardnesses compared being measured in the same unit from Shore A or Shore D), the rigid part 695 being closer from the outside of the deformable chamber 2 than the flexible part 694.

Part 694 is an independent flexible part mounted with a clamp between the internal walls of the tank or tube 602.

The nipple 90 is more rigid or harder than the flexible part and than the rigid part (the hardnesses compared being measured in the same unit from Shore A or Shore D).

For the 90 nipple:

- the hardness of the nipple is greater than 30 Shore D, or even greater than 70 Shore D, and/or

- the stud 90 has a flexural modulus greater than 200 Mpa, or even greater than 500 Mpa.

Pin 90 is flush (as shown) or protrudes less than 1 mm from outlet 24.

The end of stud 90 is less than 1 mm from exit 24 (in front or behind exit 24).

In the closed position of the distribution valve 5 illustrated in the , the end of the stud 90 is in contact with the flexible part 694 along a first line of contact, preferably along an edge 651 of the stud 90. This first line of contact is a closed line of contact going around the nipple 90.

The stop 651, in section view of the pin 90, forms an angle less than 150° or even 90 degrees on the side of the pin 90.

In the closed position of the distribution valve 5 illustrated in the , the end of the stud 90 is also in contact with the rigid part 695 along a second line of contact, preferably along an edge 652 of the stud 90. This second line of contact is a closed line of contact forming the nipple circumference 90.

The stop 652, in section view of the cap 70, forms an angle of less than 150° on the side of the tank 602.

We note on part 694 that the face just behind the line of contact 651 is not in contact with a rigid part 695, there is a space 699 between the parts 695 and 694, this allows additional flexibility to obtain more easily the two contact lines 651 and 652.

The stud 90 is arranged so that, when the valve 5 passes from its open position to its closed position, the first contact line is formed before the second contact line.

The maximum distance between the first line of contact and the outside of chamber 2 on the exit side 24 is less than 6mm or even 4mm.

Referring to Figures 40, 41 and 42, note that device 6000 includes a hole 65.

More exactly, this hole 65 is located on a side wall of the module 693.

The hole 65 allows air to escape from the module 693 when the tank 3 and/or the bag 2 and/or the valve 5 is filled with the product to be dispensed, for example by a filling rod passing through opening 87 then through opening 41.

Preferably, opening 87, opening 41 and opening 65 are aligned in that order, i.e. a straight line can pass through these three openings in that order.

FIGURES 45 and 46 illustrate one embodiment of a 7000 device for dispensing fluid. Only its differences with the device 6000 of FIGS. 40 to 44 will be described.

In this embodiment, the at least one return means 696 comprises a convex and flexible movable wall 691 forming a dome.

Referring to Figures 45-46, in embodiment 7000, valve 5 and outlet 24 are along or at the end of stem 160.

This stem 160 emerges from the surface 22 and/or 25, and therefore connects the surface 22 and/or 25 located at one of the ends of the stem 160 to the valve 5 and the outlet 24 located at the other end of the stem. 160.

This rod 160 includes a channel which connects the pocket 2 to the outlet 24.

The length 161 of the rod 160 between the surface 25 and the outlet 24 on one side is at least 25 mm, preferably at least 35 mm or even at least 45 mm

The inlet valve 4 is of the “duck valve” type, which is particularly tight and allows the introduction of a needle through the valve 4.

The valve 4 can be made by overmoulding on the bottom wall 21.

The supply valve 4 is provided with protection means 204 arranged to protect the valve 4 during the insertion of a syringe through the supply orifice 41. These means 204 take the form of a cone or a ring which is inserted at the foot of the valve 4 (on the side of the reservoir 6). This cone or ring 204 is either a part of the bottom wall 21 or an added part distinct from the bottom wall 21 (but which is preferably fixed to the bottom wall 21).

The wall 691 is inserted into the wall of an applicator 208 where the outlet 24 emerges.

This applicator 208 makes it possible to spread the product to be dispensed, to massage a part of a body (for example a face and/or a cheek and/or lips and/or an eye contour) with the product to be dispensed , etc.

The wall of the applicator is composed of an overlay of two layers, preferably:

• On the side of the wall 691 and/or of the valve 5, a layer of plastic material, for example PP or PE
• On the outlet side, a metal layer, for example stainless steel, or a layer of foam, or even a layer of fabric.

The applicator 208 has a dispensing surface which borders or surrounds the outlet 24 preferably with an area of at least 50mm2 and even at least 100mm2.

FIGURES 47 and 48 illustrate one embodiment of an 8000 device for dispensing fluid. Only its differences with the device 7000 of FIGS. 45 to 46 will be described.

In this embodiment, stem 160 emerges from surface 22, and therefore connects surface 22 located at one end of stem 160 to valve 5 and outlet 24 located at the other end of stem 160. The length 161 of the rod 160 between the surface 22 and the outlet 24 on one side is at least 25 mm, preferably at least 35 mm or even at least 45 mm.

Due to the flexibility or the ability of the wall 22 to deform, the rod 160 is arranged to tilt.

In this embodiment, the pocket 2 is delimited:

- partly by the deformable wall 22, and

- partly by internal rigid walls of the rod 160 fixed on the deformable wall 22 of the bag 2 so that the rod 160 (which therefore forms a dispensing head 400 as described with reference to Figures 36 and 37) is carried by the deformable wall 22 according to different possible positions relative to the reservoir 6 including at least:

* a stable position (as shown in the ) in the absence of external force exerted on the rod 160 and

* an inclined position at an angle of inclination relative to the stable position during the exercise of an external force on the rod 160, so as to deform the deformable wall 22 and thus reduce the interior volume of the pocket 2 by relative to the stable position. This external force is typically applied to the rod 160 by a user's face and/or cheek and/or lips and/or eye contour.

The means 204 take the form of a cone or a ring which is inserted at the foot of the valve 4 (on the side of the reservoir 6). This cone or ring 204 is either part of the bottom wall 21 (as illustrated in ) or an added piece separate from the bottom wall 21 (but which is preferably fixed to the bottom wall 21).

The valve 4 is wedged between the means 204 and/or the bottom wall 21 on one side and a rigid extension integral with the wall 22 on the other side.

The wall 691 and/or the valve is fixed between the massage element 408 and the outlet 24 and/or the applicator 208.

FIGURES 49-52 illustrate one embodiment of a 9000 device for dispensing fluid. Only its differences with the device 4000 of FIGS. 36 to 37 will be described.

The wall 12 and the wall 21 form a container 122, arranged to contain the reservoir 6 and the pocket 2.

The container includes a hinge 175 between an upper part 170 of the container 122 and a lower part 180 of the container 122.

This joint 175 is:

- either a joint by a flexible intermediate wall of the container 122 between the parts 170 and 180, as illustrated in ,

- either a rigid joint by interlocking the two parts 170 and 180.

This joint is arranged to allow the inclination of the head 400.

The head 400 passes through a hole 173 made in the container 122, so that the head 400 comprises at least one part 152 outside the container 122 and at least one part 202, 5, 22 inside the container 122 .

The part 23 comprises fixing means allowing the head 400 to be fixed to the container 122, for example:

• As illustrated in or 51, by tightening a part 171 (also called fixing plate 171) of the container 122 between two parts of the head 400 assembled, these two parts of the head 400 comprising a second part 152 (for example a rider or a ring ) located at least partly outside the container 122 and at the end of the head 400 and fixed to a first part 151 (comprising for example a thread 201 and a stop 202) located at least partly at the inside the container 122. These two parts 151 and 152 can for example hold between them a dispensing ball 150 ( ) free to rotate and onto which the outlet 24 or a dispensing foam or pad 150 ( ) to which exit 24 leads.
• As illustrated in , by holding a part 171 (also called fixing plate 171) of the container 122 by at least a part of the head 400, including a first part 151 (comprising for example a rider taking part 171 in the jaw) of the head 400 and at least partly located partly inside the container 122 (and partly outside the container 122) and a second part 152 (comprising for example a fork fitting between the plate 171 and the part 151 ) of the head 400 and located at least partly outside the container 122 and at the end of the head 400. The part 151 and/or 152 can hold a roller or applicator or dispensing ball 150 free to rotate and which leads to exit 24.

The reservoir 6 and the head 400 therefore form a cartridge 200 which can be replaced within the device according to the invention 9000 by unlocking the fixing means 151, 152 and opening a cover 176 fixed to the lower part 180.

The container 122 is arranged to allow a translational movement (in a housing 181 formed in the reference 176 and/or 180) between the reservoir 6 and the container 122 when the head 400 is tilted.

The device 9000 comprises adjustment means 172 arranged to modify the stiffness of the joint 175. These adjustment means 172 typically comprise a tab (metal) sliding between the parts 170 and 180 so as to have several possible positions more or less distributed on parts 170 and 180.

There illustrates one embodiment of a device 10000 for dispensing fluid. Only its differences with the device 9000 of FIGS. 49 to 52 will be described.

This device 10,000 differs from device 9000 in that head 400 and container 122 are not tiltable.

The part 175 is then no longer a joint but a support surface arranged to deform the wall 22 of the head 400

The 10000 device is shaped like a pen.

FIGURES 54 and 55 illustrate one embodiment of a device 11000 for dispensing fluid. Only its differences with the device 105 of the will be described.

In this embodiment, the bottom wall 21 (or forming a stopper or insert 123 pressed into the cap 70) has a convex domed shape on the side of the interior volume of the pocket 2.

The cap 70 has a concave curved shape on the side of the interior volume of the pocket 2 and which matches the convex shape of the bottom wall 21 while leaving an intermediate space 2a between these concave and convex shapes so that this intermediate space forms less in part the interior volume of pocket 2.

The majority 2b (at least 70%, preferably at least 80%) of the internal volume of the pocket 2 is located in at least one cavity sinking towards the inside of the bottom wall 21, and is distinct from the part 2a.

The total interior volume of the pocket is made up of the sum of parts 2a and 2b.

The cap 70 is fitted onto the bottom wall 21, without welding. This interlocking includes a snap 161. The tightness of this interlocking is ensured by at least one sealing contact line 260 (or sealing crown) between the cap 70 and the bottom wall 21.

There may be several sealing contact lines 260 (or sealing crowns), possibly grouped together in the form of a sealing strip.

The edge of the interior volume of pocket 2 is remote and offset with respect to these sealing contact lines 260.

In the bottom wall 21 is formed an imprint 2b delimiting at least part of the interior volume of the pocket. The sealing contact lines 260 are remote from this footprint 2b or even generally from the interior volume of the pocket 2, sometimes by more than 10 millimeters.

The periphery of the borrow 2b is smaller, at least 30% smaller or even preferably at least 50% smaller, than the periphery of each line of contact 260.

The sealing lines 260 surround but do not border the interior volume of the pocket 2.

The ring 109 in addition to compressing the flexible wall 108 in a sealed manner, has the additional function of maintaining the supply valve 4 more precisely by compressing the foot of the valve 4 on a skirt of the bottom wall. The ring 109 is placed between two cylinders of the bottom wall and is arranged to clip onto the outer walls of the smaller cylinder.

The supply valve 4 is provided with protection means 204 arranged to protect the valve 4 during the insertion of a syringe through the supply orifice 41. These means 204 advantageously formed on ring 109 take the form of a cone or a ring which is inserted at the foot of the valve 4 (on the side of the reservoir 6) and/or comprises an orifice 41 smaller than the orifice 137 of the foot of the valve 4 (preferably a diameter at minus 15% smaller)

Valve 4 is held between ring 109 and bottom wall 21.

Above the lines of contact 260, part of the tank penetrates inside the bottom wall 21 which is convex on the side of the pocket 2 but concave on the side of the tank 6.

The volume of the pocket 2 is at least 2, 3 or 4 times smaller than the internal volume of the cap 70 delimited by a (medium) plane passing through the lines 260.

The cap 70 and the bottom wall 21 are arranged so that the wall 21 is mounted in the cap 70 according to an insertion assembly in the cap 70 on the side of the lines 260 and in an insertion direction 125.

The support surface 25 and the outlet 24 are not lateral, i.e. they are both located on top of the cap 70 so that:

• the product to be dispensed exits through outlet 24 with at least one component (20% or more of the exit direction vector) in the direction of insertion 125 or else the angle between a tangent to the peripheral surface of outlet 24 and the direction 125 is between 20° (preferably 45°) and 90°,, and
• the bearing surface 25 is arranged to be moved by a force having at least one component (20% or more of the force vector) opposite to the direction of insertion 125, or else the angle between a tangent to the surface 25 and the direction 125 is between 20° (preferably 45°) and 90°,.

The support surface 25 includes structures 133 allowing this surface 25 to be viewed.

Thus, the device 11000 for dispensing a fluid comprises:

- exit 24,

- the pocket 2 having an interior volume to contain a fluid, the interior volume of the pocket being delimited:

• partly by the cap 70 comprising the movable wall 22 arranged to tilt and/or translate and/or deform by pressing on the bearing surface 25 so as to modify the interior volume of the pocket,
• partly by the bottom wall 21 inserted into the cap 70

- the dispensing valve 5 which, in an open state, allows fluid to pass from the bag 2 to the outlet, and, in a closed state, does not allow it,

- the tank 6 provided with the wall 118, 108 arranged to contain the fluid,

- the supply valve 4 which, in an open state, allows the passage of the fluid contained in the reservoir towards the pocket, and which, in a closed state, does not allow it.

In addition, the bottom wall 21 comprises three distinct parts:

• a central part 141 partly delimiting the interior volume of the pocket and spaced from the cap 70 so that this space defines at least partly the interior volume of the pocket 2 between the cap 70 and this central part of the bottom wall 21
• an intermediate part 142, surrounding the central part of the bottom wall 21, and arranged to be pressed against the cap 70, this plating however allowing a clearance between the cap 70 and the bottom wall 21 with an intermediate space between the cap 70 and the bottom wall 21 less than two millimeters, preferably less than one millimeter, and
• a peripheral part 143, surrounding the intermediate part of the bottom wall 21, and arranged to form with the cap 70 at least one sealing line 260 in a closed loop between the cap 70 and the bottom wall 21

the intermediate part having an area greater than or equal to 400 square millimeters (preferably greater than or equal to 800 square millimeters) and/or greater than (preferably at least twice greater than) the area of the central part 141 of the wall background 21.

Line 260 forms a perimeter loop of at least 200mm, preferably more than 250mm or even 300mm.

FIGURES 56 and 57 illustrate one embodiment of a 12000 device for dispensing fluid. Only its differences with the device 11000 of FIGS. 54 and 55 will be described.

The support surface 25 and the outlet 24 are frontal, i.e. both located on top of the cap 70 so that:

• the product to be dispensed exits through outlet 24 at least with a majority component (50% or more of the outlet direction vector) in the direction of insertion 125, or else the angle between a tangent to the surface surrounding the outlet 24 and the direction 125 is between 20° (preferably 45°) and 90°, and
• the bearing surface 25 is arranged to be moved by a force having at least one component predominantly (50% or more of the force vector) opposite to the direction of insertion 125, or else the angle between a tangent to the surface 25 and the direction 125 is between 20° (preferably 45°) and 90°.

The part 2b of the interior volume of the pocket 2 also comprises an additional volume (typically in the shape of a crescent moon and/or which surrounds the valve 4). This additional volume makes it possible to increase the interior volume of pocket 2 and therefore to reduce the pressure in pocket 2 when pressing on surface 25.

The curved or dome-shaped wall 22 or 25 (or spherical cap) can be replaced by a wall 22b having a point-shaped top and/or being of conical shape (basically circular, oval, elliptical, etc.) or pyramidal (which may have more than 3 sides) and preferably slightly higher than a spherical cap which would rest on walls at the feet of this wall 22b, or spherical cap which would rest more towards the top at a height of 25 % of the height of this wall 22b (which would rest on average walls if the shape is not spherical). The wall 22b higher by at least 0.3mm than the wall 22 deforms more gradually. The ratio between the perimeter of the foot of the pocket 22b and the height of the pocket 22b has a ratio of less than 20 and even less than 19.

Line 260 forms a perimeter loop of at least 200mm, preferably more than 250mm or even 300mm.

FIGURES 58 and 59 illustrate one embodiment of a device 13000 for dispensing fluid. Only its differences with the device 101 of the will be described.

The wall 22 is provided with a skirt 155 having a height at least at least as high, in the same direction of measurement, as the height at the entrance to the housing 8 on the side of the pocket 2 (i.e. a minimum of 1 mm or 2mm).

This skirt 155 allows the insertion of the valve 5 into the housing 8 from inside the pocket 2 perpendicularly or substantially perpendicular to the direction of measurement of the height of this skirt 155.

Thanks to this skirt 155, the bottom wall 21 takes the form of a flat surface 156 and facilitates the welding of the tank 6 or 14 or 108 to the bottom wall 21.

FIGURES 60-62 illustrate one embodiment of a 14000 device for dispensing fluid. Only its differences with the device 11000 of FIGS. 54 and 55 will be described.

In this embodiment, the side pocket 2, i.e.:

• the angle between a tangent to surface 25 and direction 125 is between 0° and 45° (preferably 20°).

Pocket 2 goes around reservoir 6 and insert 123 at 360° around direction 125.

There are (as for device 101) one or two filling holes 87, 87b each opening onto the inside of tank 6.

Preferably, these filling holes are two in number and are located on either side of the outlet 24.

These filling holes pass through the cap 70 and the insert 123 which together form a tip 89 (equivalent to the tip 89 of the device 101).

A single plug 310 is arranged for simultaneously:

• Plug the filling hole(s) 87, 87b, and
• Plug and/or protect exit 24.

Form at least in part an applicator 208 and/or a dispensing surface 207. The cap 310 includes a cap 77 which is removable by means of a hinge.

The stopper 310 comprises 2 cylindrical pins 313 which fit together with a slight tightening in the end piece 89 at the level of the filling holes 87 and 87b in order to adjust and precisely maintain the stopper 310 with the end piece 89 during of assembly. This is the predominant means of fixing in the assembly of the plug 310 on the end piece 89, additional independent clips make it possible to keep the fitting assembled. The diameter of the pins 313 is preferably more than 3 mm and even more than 4 mm. Preferably the two holes 87, 87b are open, however in a version not shown one of the holes 87 or 87b is not open, this non-open hole is called adjustment or positioning hole.

The stopper 310 comprises a housing 312 arranged to receive the end of the distribution part 23 provided with the outlet 24. The distribution part 23 passes through the stopper 310 or not.

The device 14000 comprises a distribution surface 207 on which the outlet 24 opens.

The distribution surface 207 has a surface of at least 80 mm ² even of at least 160 mm2.

The dispensing surface 207 can be formed by the cap 310 and the tip 89.

The cap 310 includes an applicator 208 with a domed shape 308 or with a beak shape 309 at least partly formed by 310.

The insert 123 contains at least partly contains a deformable 108 which delimits at least partly the interior volume of the tank.

The insert contains or thus contains at least 20% of the internal volume of the bag 6. The insert contains at least 3 ml or 10 ml, and even at least 20 ml of product to be dispensed depending on the nature of the device. On the part that contains the insert at least 80% and even 90% of the tank 6 is deformable.

The tank (its internal volume) does not exceed the supply valve 4 towards the outlet, there is not a part of the tank between the supply valve and the distribution valve along the axis 125.

The wall 108 is blown (typically either injected blown, or extruded blown), so as to form a reservoir 6 whose neck is fixed on the insert 123.

Indexing means 236 (typically comprising a finger) of the cap 70 relative to the insert 123 are arranged to be housed in a hollow 234 of the insert 123.

With reference to the , at least one flow channel 238 is arranged to allow good fluid flow for good filling of the pocket 2, locally increases the space between the insert 123 and the cap 70.

Line 260 forms a perimeter loop of at least 200mm, preferably more than 250mm or even 300mm.

The container 122 has clipping means 235 on the insert 123 or on the cap 70 and which are arranged to allow dismantling of the cartridge or refill 200.

The wall 108 is deformable (including inside the insert 123) and is arranged to fold up or shrink towards the inside of the insert 123 when the reservoir 6 empties of the fluid to be dispensed. At least 10% or 20% or even 30% of the reservoir's maximum volume is inside the insert 123. There is at least one cross-section perpendicular to the direction 125 and passing through the pocket 2 and through the reservoir 6 (in particular by a part of the wall 108 folding back or reducing towards the inside of the insert 123 when the reservoir 6 empties of the fluid to be dispensed), i.e. the pocket 2 and the reservoir 6 are at least partly at the same level, at least 20% or 30% or even 40% of the length of the pocket according to the direction 125 is at the level of the reservoir 6. At least 6 mm or 15 mm or even 25 mm of the length of the pocket according to direction 125 is same level of reservoir 6.

There is at least one cross section perpendicular to the direction 125 and passing through the deformable wall 25 and through the reservoir 6, i.e. the deformable wall 25 and the reservoir 6 are at least partly at the same level. At least 15% or 25% or even 35% of the length of the deformable wall 25 along the direction 125 is at the level of the tank 6. At least 4 mm or 8 mm or even 15 mm of the length of the deformable wall 25 along the direction 125 is tank level 6.

Note that the junction and/or the seal between the cap 70 and the insert 123 can be inside the cap 70 (as illustrated in ) and/or outside the cap 70.

The pocket 2 is delimited at least in part between the insert 123 and the cap 70.

Pocket 2 surrounds reservoir 6 at 360° around direction 125.

Pocket 2:

- is distributed over at least 20% or even 30% of the height of the device 14000 along the direction 125, and/or

- is at least 25mm or 30mm or even 40mm in height along the 125 direction.

There illustrates one embodiment of a device 15000 for dispensing fluid. Only its differences with the device 14000 of FIGS. 60 to 62 will be described.

Compared to the previous embodiment, in the device 15000 the flexible wall 108 is fixed (by tightening or other) between the cap 70 and the insert 123.

Thus, the internal volume of the tank is delimited:

inside the insert 123, by a rigid wall of the reservoir, formed at least in part by the insert 123 itself. There is at least one cross section perpendicular to the direction 125 and passing through the pocket 2 and through the reservoir 6 (and through the insert 123; and also through the cap 70), i.e. the pocket 2 and the reservoir 6 are at least partly at the same level.

However, when the reservoir 6 is filled to its maximum with the fluid to be dispensed, there is not at least one transverse section perpendicular to the direction 125 passing through the pocket 2 and through the flexible wall 108 folding or reducing towards the inside the insert 123 when the reservoir 6 empties of the fluid to be dispensed) There is at least one transverse section perpendicular to the direction 125 (closer to the valve 4 than the section previously described) and passing through the pocket 2 and through the tank 6 (in particular by a rigid part 240 of the wall of the tank and not folding back or not being reduced towards the inside of the insert 123 when the tank 6 empties of the fluid to be dispensed).

• On the other hand, when the reservoir 6 is emptied of a certain quantity of the fluid to be dispensed and the flexible wall 108 has folded up or is reduced towards the inside of the insert 123, there is at least one transverse section perpendicular to the direction 125 passing through the pocket 2 and through the flexible wall 108 as illustrated in .
• outside the insert 123, by the flexible wall 108.

The volume of reservoir 6 outside insert 123 is at least 40% greater than the volume of reservoir 6 inside insert 123.

Such an assembly is made possible thanks to the holes 87 making it possible to pull the insert 123 towards the cap 70.

FIGURES 64-66 illustrate one embodiment of a 16000 device for dispensing fluid. Only its differences with the device 14000 of FIGS. 60 to 62 will be described.

In this embodiment 16000, insert 123 extends outside of cap 70.

The interior volume of the tank 6 is no longer delimited (even in part) by a flexible deformable wall 108, but is delimited by the insert 123 and by a movable piston 86 moving in the insert 123 according to the quantity of fluid to be dispense contained in tank 6.

This embodiment 16000 includes a vent 321, which makes it possible to circulate the air between the exterior of the device 16000 and the part (of variable volume depending on the position of the piston 86) located in the insert 123 but at the exterior of tank 6.

Vent 321 passes through pocket 2.

The wall 22 (preferably flexible) is wedged between the cap 70 and the insert 123.

There is at least one transverse section perpendicular to the direction 125 and passing through the pocket 2 and through the reservoir 6 (and through the insert 123 but not through the cap 70), i.e. the pocket 2 and the reservoir 6 are at least in part at the same level.

Device 16000 includes sealing means 233 between insert 123 and wall 22 at vent 321.

Pocket 2 is delimited at least in part between insert 123 and wall 22 held between cap 70 and insert 123.

Pocket 2 surrounds reservoir 6 at 360° around direction 125.

Pocket 2:

- is distributed over at least 30% (preferably at least 50%) of the height of the device 16000 along the direction 125, and/or

- is at least 30mm or 40mm or even 50mm in height along the 125 direction.

The insert 123 includes the bottom wall 21.

The interior volume of pocket 2 is at least twice smaller (preferably at least four times smaller) than the interior volume of reservoir 6.

Holes 237 through the insert 123 connect two parts of the pocket 2: the part located between the insert 123 and the cap 70 and the part located between the insert 123 and the deformable flexible wall 22.

Insert 123 therefore has several functions:

• maintaining the wall 22 between the insert 123 and the cap 70
• wear the holes 237
• at least partially delimit the interior volume of the pocket 2
• at least partially delimit the interior volume of the reservoir 6
• guiding the movement of the piston 86
• maintenance of the means of sealing 233
• carry one end of vent 321.

All these functions are therefore provided by a part 123 of the end piece 89.

The tip 89 (more precisely the insert 123) forms the side walls of the tank 6.

In this embodiment 16000, we have:

• holes 87, 87b for filling the tank 6
• holes 187, 187b for filling pocket 2.

Reservoir 6 is between valve 4 and vent 321.

There is at least one transverse section perpendicular to the direction 125 and passing through the pocket 2 and through the reservoir 6 (and through the insert 123 but not through the cap 70), i.e. the pocket 2 and the reservoir 6 are at least in part at the same level.

The internal volume of pocket 2 is delimited at least in part between insert 123 and wall 22 held between cap 70 and insert 123.

The wall 22 has the shape of an outer pocket.

The wall 22 forms both side outer walls and a bottom outer wall of the device on the side of the wall 91.

The cap 70 is fixed to the open end of the pocket 2 formed by the wall 22.

Reservoir 6 is located at least partly inside pocket 2.

In a variant not shown of the , the reservoir 6 is delimited at least in part by a flexible wall 108 as in the or 56, and valve 4 and vent 321 are on the same side of reservoir 6. Vent 321 passes through insert 123 and cap 70. Wall 22 (preferably flexible) is wedged between cap 70 and insert 123.

There illustrates one embodiment of a 17000 device for dispensing fluid. Only its differences with the device 16000 of FIGS. 64 to 66 will be described.

In this embodiment, insert 123 extends outside of cap 70.

As for the embodiment of the , the interior volume of the reservoir 6 is delimited by a deformable flexible wall 108 closed by a bottom wall 91 immobilized by the insert 123.

This flexible wall 108 is inside the insert 123.

Device 17000 includes a refill connector 225 arranged to allow fluid to be recharged inside device 17000 (more exactly inside reservoir 6) without this fluid passing through pocket 2 or dispensing valve 5 or supply valve 4.

The 225 connector includes a refill valve that:

- at rest is closed, and

- Is arranged to open when the means 225 are connected to a source of fluid to be dispensed.

Connector 225 is removable.

Reservoir 6, more precisely wall 91 emerges outwards so as to form a neck having a slope 224 avoiding trapping air in reservoir 6.

In addition, sealing means 218 of the device, more precisely in the connector 225 or at the level of the neck 85, make it possible to prevent air from entering the reservoir 6 when recharging the reservoir 6.

The valve of connector 225 opens into reservoir 6.

Connector 225 passes through wall 91.

Insert 123 is wedged between wall 22 and wall 91.

There is at least one cross section perpendicular to the direction 125 and passing through the pocket 2 and through the reservoir 6 (and through the insert 123 and through the wall 108), i.e. the pocket 2 and the reservoir 6 are at least partly at the same level.

The internal volume of pocket 2 is delimited at least in part between insert 123 and wall 22.

Pocket 2 (and wall 22) surrounds reservoir 6 at 360° around direction 125.

Reservoir 6 is located at least partly inside pocket 2.

The connector 225 is at the level of the opening 87 and is blocked by the stopper 310. The connector 225 can make it possible to fill both the pocket 2 and the reservoir 6.

A cover or handle 226 covers the neck 85 of the connector 225 and the wall 91 so as to hide them from the outside of the device.

In another variant not shown on the connector 225 and/or the valve 4 comprises a valve of the "duckbill" type ("duck valve" in English), to allow the introduction of a filling tube 46 allowing to fill reservoir 6 and/or pocket 2 with fluid to be dispensed.

The filler rod may include two holes, including:

• a first hole 68 (preferably at the end of the filling rod introduced into the device) which opens into the pocket 2, and
• a second hole 67 (preferably located laterally along the filler pipe) which opens into reservoir 6.

It is noted that in this variant the refill is not done under pressure.

A spring element 212 is interposed between the insert 123 (more exactly between the bottom wall 21 of the insert 123) and the wall 22. This element 212 can be present in each of the variants of figures 67a, 67b or 67c or even 64.

The wall 22 is fixed on the insert 123, more exactly in a groove of the insert 123. The device comprises means 213 for clipping the pocket 22 on the insert 123 more precisely a ring 213 is clipped in a groove of insert 123.

This ring 213 further comprises means 223 for fixing the applicator 208 such as a border 223 or border section surrounding the device laterally so as to hold the border of an applicator 208. The applicator is removable and is provided on its periphery of a less elastic border element coming to cling to the border 223.

The wall 22 is flexible and is injected in thermoplastic elastomer, for example in TPO.

The distribution valve 5 is inserted into the wall 22. The valve 5 is more flexible than the wall 22 at the level of an extra thickness of the wall 22 in which the valve 5 is housed.

In another variant illustrated in , the cap 70 comprises several walls 22, each wall 22 being equipped with its valve 5 leading to a pocket 2 common to all the valves 5. This makes it possible to distribute the product coming from the reservoir over a larger surface. Optionally, all these walls 22 are covered by the same porous surface 208. Volume parts 217, typically made of foam, are arranged to erase differences in level between the parts of the cap 70 with or without wall 22.

A method of filling the device 17000, but which would also be applicable to any embodiment or variant of device according to the invention equipped with the orifice 87, is as follows:

1. Reservoir 6 and/or bag 2 are filled through orifice 87 even though this orifice is not equipped with connector 225, as illustrated in ;

Typically, one can use a filling rod 46 comprising two holes or at least two holes, including:

• a first hole 68 (preferably at the end of the filling rod introduced into the device) which opens into the pocket 2, and
• a second hole 67 (preferably located laterally along the filler pipe) which opens into reservoir 6;

Then

1. Port 87 is fitted with connector 225
2. The reservoir 6 and/or the pocket 2 is at least partially emptied using the device, then
3. Reservoir 6 and/or bag 2 are refilled through orifice 87 while this orifice is fitted with connector 225, as illustrated in ,

A description will now be given, with reference to FIGS. 69 to 70, of various embodiments of the device according to the invention.

All these embodiments of these figures 69 to 71 have in common to have continuity of material or overmolding by bi-injection between:

- the headdress 70

- the deformable wall 22,

- a movable wall 420, arranged to translate, inside a duct or cylinder 430 or outside a piston 430, and whose translation movement is guided by a rail 112 which is coupled to a slide 113, the rails 112 and/or a slide 113 thus being arranged to guide the cap 70.

The rail 112 or the slide 113 is secured to the cap 70, while respectively the slide 113 or the rail 112 is secured to the bottom wall 21 or to the part 430.

This rail/slide pair can be replaced or supplemented by another rod/cylinder pair arranged so as not to compress the fluid.

Preferably at least one rail/slide pair is arranged to have transverse support in all directions.

Outlet 24 is equipped with a nozzle 59 arranged to generate a spray.

We will now describe, with reference to the , one embodiment of a device according to the invention. This embodiment will only be described for its differences from the embodiment of the .

In this embodiment, the deformable wall 22 does not at least partly delimit the interior volume of the pocket 2. The deformable wall 22 is in contact with an air pocket 34.

In this embodiment, the movable wall 420 delimits at least in part (with the duct 430) the interior volume of the pocket 2.

The cap 70 further comprises a dispensing spout 30 carrying the outlet 24. This dispensing spout 30 extends laterally beyond the width of the side walls 118 delimiting or containing the reservoir 6. The dispensing spout comprises the housing distribution 8 which extends to the side walls 118 or beyond.

The movable part 420 sunk to the maximum in or around the part 430 leaves a part 36 of the part 430 in which the part 420 has not sunk by a length of at least 20 mm or even at least 30 mm .

The pocket 2 leaves a part 36 with a length of at least 20mm or even 30mm between the feed orifice 41 and the bottom wall 21.

The spout 30 is equipped with a nozzle 59 arranged to generate a spray.

This embodiment further comprises a rib 37 coming from the bottom wall 21 arranged to prevent the pocket 108 from sinking into the device around the pocket 2, in particular around its part 36.

The whole 108, 112, 6, 87, 2, 70 122 is placed in a box 170, 180 formed by an assembly of an upper part 170 of the box and a lower part 180 of the box.

The beak emerges from the box, preferably:

• Either by a hole formed in the upper part 170
• Either by a hole formed between the upper part 170 and the lower part 180.

The spout 30 is part of the cap 70 in the form of a single piece of the same material (without material discontinuity).

A cartridge 200 is formed by assembling the reservoir 6 and the chamber 2 (and also preferably the cap 70 and/or the valve 4 and/or the valve 5).

When the parts 170 and 180 are assembled, a skirt 145 of the upper part blocks the cartridge or refill 200 in order to prevent this cartridge 200 from moving within this embodiment of the device according to the invention, even when pressing on the cap 70.

A description will now be given, with reference to FIGS. 70a and 70b, of an embodiment of a device according to the invention. This embodiment will only be described for its differences from the embodiment of the .

In this embodiment, the deformable wall 22 does not at least partly delimit the interior volume of the pocket 2. The deformable wall 22 can comprise elastic tabs extending on the bottom wall 21 outside the piston 420 .

In this embodiment, the movable wall 420 delimits at least in part (with the duct 430) the interior volume of the pocket 2.

The deformable wall 22 comprises a curve, whether continuous or not, which can be interpolated by three discontinuous slopes between them, including:

- a first slope 50 forming an angle between 0° and 20° with respect to the bottom wall 21.

- around the first slope, a second slope 51 forming an angle between 25° and 75° with respect to the bottom wall 21

- around the second slope, a third slope 52 forming an angle between 50° and 100° relative to the bottom wall 21

This first slope 50 is stiffer (typically formed by a thicker wall) than slopes 51 and 52.

This additional thickness of the slope 50 constitutes braking means 55 of the wall 22, a hollow and/or a bump at the level of the rail/slide couple can increase this braking. On average, this extra thickness is preferably at least twice as thick as parts 51 and 52.

The part of the wall 22 forming the slope 50 is at least 1.5 times and even 2 times wider (according to a measurement axis parallel or substantially parallel to the bottom wall 21) than the parts 420 and 430.

With reference to the the part 50 is substantially parallel to the bottom wall 21, the part 51 is not present and the part 52 forms an angle of substantially 90° with the bottom wall 21. The part 52 comprises at least in part a material made of more flexible elastomer than part 50. Parts 52 and 50 of wall 22 are made in a single piece by overmolding or bi-injection. Preferably the wall 22 and the dispensing piece 23 are made in a single piece called body 246. A bottom piece 245 comprising the bottom wall 21 closes the pocket 2, preferably by welding or fitting with the body 246.

A description will now be given, with reference to FIGS. 71 and 73, of an embodiment of a device according to the invention. This embodiment will only be described for its differences from the embodiment of Figure 70.

In this embodiment, the movable wall 420 does not at least partly delimit the interior volume of the pocket 2.

In this embodiment, the deformable wall 22 at least partially delimits the interior volume of the pocket 2.

In this embodiment, the wall 22 is arranged to press directly or indirectly on the valve 4 more precisely the wall 22 comprises at its periphery a part 53 arranged for during an exercise of the pressing force 140 on the wall of support 22 from outside the pocket 2, transmit at least in part this pressing force 140 to the supply valve 4 either directly on the supply valve 4, or either as shown in the through a support member 139 of the supply valve comprising a tongue 138 being arranged for, by pressing on the supply valve 4, more precisely by pressing on its membrane by pressing the supply valve 4 against the part bottom wall 21. When pressing on the wall 25, the part 53 of the wall 22 is arranged to deform before the deformation of the other parts of the deformable wall 22, more precisely before the sudden deformation of the walls 51 and 52 The wall 50 is arranged to move by translation towards the bottom wall being guided by the rail/slide couple. The support member 16 of the supply valve 4 is integral with the part of the bottom wall 21. The member 139 belongs to the same part as the bottom wall 21 and comes from the molding of the bottom wall 21 and housing 8 of the dispensing valve.

The supply valve 4 (more exactly on its membrane) comprises a bubble or a bump 135 (to join the pin 139 and have a more centered effort) which can be in contact with the bottom wall 21 by forming a spring.

The part of the wall 22 forming the slope 50 has a width 54a (along a measurement axis parallel or substantially parallel to the bottom wall 21) equal on average to at least 0.3 times or even at least 0.4 times the width 54b of pocket 2 (measured for the part of pocket 2 closest to wall 21 and measured along a measurement axis parallel or substantially parallel to bottom wall 21).

The wall 22 and/or the bottom wall 22 is provided with a skirt 155 having a height at least at least as high, in the same direction of measurement, as the height at the entrance to the housing 8 on the pocket side. 2 (i.e. minimum of 1.5mm or 3mm).

This skirt 155 allows the insertion of the valve 5 in the housing 8 from inside the pocket 2 or the outlet 24 perpendicular or substantially perpendicular to the direction of measurement of the height of this skirt 155.

Thanks to this skirt 155, the bottom wall 21 takes the form of a flat or substantially flat surface 156 and facilitates the welding of the bottom wall 21 on a face 56 of the flexible bag 14 forming the reservoir 6.

The bag 14 is an open film before being welded to the wall 21, then is folded (along the fold 144) and closed on itself in order to form the interior space of the tank 6, the outlet 24 is lateral the spout 30 of distribution is located at the level of the fold 144. The spout 30 of distribution protrudes by less than 3 mm and even protrudes by less than 3 mm with respect to the edge of the bag 14 once formed

It is noted that the part of the wall 22 forms a hollow 57 which surrounds the movable part of the wall 22, thus the force 140 is better centered, the movable part of the wall 22 is protected and the thickness of the device is less for the same distributed slab It is noted that the deformable wall 22 forming the hollow 57 is located opposite the orifice of the valve housing 8. There is a straight line passing through the distribution valve housing 8 and crossing four times the deformable wall 22

With reference to FIGS. 74, 75 and 76, each of the embodiments or variants previously described comprising a deformable wall 22 (preferably delimiting at least in part the interior volume of the pocket 2) which is not located inside of the tank 6, can be equipped with a button 162 equipped with a thread 164, preferably screwed to an element integral with the wall 22 which is located at the top of the concave shape of the wall 22 ((for example at the cap 70 if the latter is located on the top of the wall 22 (figures 4, 13, 14, 16, 18, 23, 24, 30, 32, 34, 35, 40, 45, 69 on the example of the ) or on a rod or support 166 added to the top of the wall 22 provided with a screw thread (figures 19, 38, 56, 58, 72 on the example of the )).

This screw thread 164 is arranged to, depending on the screwing of the plug 162 on the wall 22, adjust a space between the plug 162 and the bottom wall 21 or another part of the device according to the invention, or in general to adjust the maximum possible amplitude 165 of the movement of the button 162 on the wall 22, and therefore adjust the maximum quantity of product delivered by the outlet 24 of the device according to the invention when the button 162 is pressed (and therefore adjust different states compression of the pocket 2 by the button 162).

The support surface 25 can be located at least partly on the button 162 and/or on the cap 70 (which can protrude from the button 162 or pass through the button 162) and/or on the support 166 (which can protrude from the button 162 or cross button 162).

The device according to the invention may comprise (between the button 162 and another part of the device such as for example on a crown 158 surrounding the pocket 2 and in contact with the button 162) sensitive notches 167b and/or dosage notches 167a arranged to block different screwing positions of the button 162 on the element 70 or 166 fixed to the wall 22 and therefore different states of compression of the pocket 2 by the button 162. The crown 158 comprises on its internal face grooves arranged to cooperate with at least one tab 159b of the button 162 and comprises on its outer face recesses arranged to cooperate with at least one bump or a low wall 159a integral with the side walls of the button 162. The recesses indicate a metering marked on a wall of the device, more precisely on the bottom wall 21. The device is arranged so that between a minimum metering position and a maximum metering position the rotation of the knob is less than 360 degrees. In the maximum dosage position, the button is arranged so as not to unscrew, for example a finger on the bottom wall comes into abutment with the tab 159b. With reference to the , the support 166 is arranged to enter the bottom wall 21 on the side of the supply valve 4, the thread 164 is inside the support.

With reference to the it is noted that the hollows are not positioned regularly on the ring due to the nonlinear deformation of the pocket. It is noted that this device makes it possible to purge the chamber 2 in a position of the button 162 offering a large displacement of the bag 2, this avoids defusing the device and makes it possible to dispense low doses.

In a method according to the invention for all the embodiments of devices according to the invention previously described:

- the tank 6 is filled with the product to be dispensed, then once the tank 6 is filled with product, the opening 87 is closed, then

- with reference to the , the device 580 according to the invention is placed with the head upwards (ie the pocket 2 located above (relative to the earth's attraction) at least part of the reservoir 6) in a vacuum chamber 500 ( preferably with a vacuum of at least 0.5 bar relative to a pressure of one atmosphere) so that the air leaves the device according to the invention, for example through the dispensing valve 5 (the vacuum being carried out by suction means 526), then

- still in the enclosure still under vacuum (preferably with a vacuum of at least 0.3 bar or even 0.5 bar relative to a pressure of one atmosphere) the device is tilted (typically by tilting a support 501) according to the invention in a new position by tilting it by at least 30 degrees and even by at least 90 degrees (preferably 180 degrees) with respect to the vertical, and

- with reference to the , while the device according to the invention is in this new position and/or while the device according to the invention is being used in this new position, the pressure is increased in the enclosure (preferably up to one atmosphere , typically by bringing in air through an air inlet 525).

Referring to Figures 77 and 78, for each of the device embodiments according to the invention, in particular those that can be implemented for a "spray" (for example the embodiments of Figures 69 to 74), the valve supply 5 includes:

• a movable membrane 116, arranged to move between the open position and the closed position of the valve 5, and
• a junction element 115, which carries the mobile membrane of the valve 5, and which is held in the distribution channel connecting the outlet 24 inside the pocket 2. This distribution channel comprises the housing 8. Preferably, the junction element is held by tightening the internal walls of the distribution channel on the junction element.

The distribution channel 114 comprises means 136 arranged to push the junction element 115 against the internal walls of the distribution channel.

These means 136 typically comprise at least one element (such as teeth or low walls) which emerges from the internal walls of the distribution channel and which is inserted into a recess 137 of the junction element so as to push, from the inside of the junction element, two parts of the junction element in two opposite directions but both directed towards at least one of the internal walls of the distribution channel.

The end of the membrane 116 (opposite the end of the membrane 116 joining with the joining element 115) carries a stud 117.

This nipple 117 is inserted into a part comprising a nozzle 59 and arms 132.

The nipple 117 and the nozzle 59 are arranged to leave between them at least one channel arranged to create a vortex of the fluid to be dispensed.

The arms 132 are arranged to push the valve 5 into the channel 114 during the insertion of the nozzle 59 into the channel 114.

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

Claims (10)

Device for dispensing a fluid, comprising:

• a pocket (2) having an interior volume arranged to contain the fluid,
• a support surface (25) arranged to, under the exertion of pressure, reduce the interior volume of the pocket (2) by deformation or displacement of a deformable or mobile wall,
• an outlet (24),
• a dispensing valve (5), and which in an open state, allows a passage of fluid from the inside of the pocket (2) towards the outlet (24), and, in a closed state, does not allow a passage of fluid from the inside of the pocket (2) towards the outlet
• a tank (6, 13)
• a supply orifice (124) connecting the reservoir (13) to the interior volume of the bag (2),

characterized in that it further comprises a knob (162) fitted with a screw pitch (164) and screwed to an element integral with the wall (22), said screw pitch (164) being arranged to adjust an amplitude (165) maximum possible movement of the button (162) on the wall (22), and therefore set a maximum quantity of product delivered by the outlet (24) of the device according to the invention when pressing on the surface of support (25). Device according to Claim 1, characterized in that the deformable or mobile wall at least partially delimits the interior volume of the pocket (2). Device according to Claim 1, characterized in that the deformable (22) or mobile wall is situated outside the reservoir (6). Device according to any one of the preceding claims, characterized in that the knob (162) is screwed to an element integral with the deformable or mobile wall (22) which is located at the top of a concave shape of the deformable or mobile wall (22). Device according to any one of the preceding claims, characterized in that the knob (162) is screwed to an element integral with the deformable or movable wall (22) which is a cap (70) in which the dispensing valve ( 5). Device according to Claim 5, characterized in that the bearing surface is located at least partly on the cap (70). Device according to any one of Claims 1 to 4, characterized in that the button (162) is screwed to an element integral with the deformable or mobile wall (22) which is a support (166) with a screw thread in which n the dispensing valve (5) is not housed. Device according to Claim 7, characterized in that the bearing surface is located at least partly on the support (166). Device according to any one of the preceding claims, characterized in that the bearing surface is located at least partly on the button (162). Device according to any one of the preceding claims, characterized in that it comprises locking notches (167a, 167b) arranged to lock different screwing positions of the knob (162) on the element (70, 166) integral with the wall (22) and therefore different states of compression of the pocket (2) by the button (162).