WO2009141510A1

WO2009141510A1 - Gel dispenser

Info

Publication number: WO2009141510A1
Application number: PCT/FR2008/000692
Authority: WO
Inventors: Gérard Sannier; Francis Poizot
Original assignee: Sannier Gerard; Francis Poizot
Priority date: 2008-05-20
Filing date: 2008-05-20
Publication date: 2009-11-26
Also published as: CN102099262B; HK1156587A1; KR101477180B1; CN102099262A; KR20110029127A

Abstract

This invention relates to a device for dispensing a liquid product stored in a container (2) of variable capacity supplying a pumping chamber. The liquid product is expelled through an opening in a dispensing plate (3), the structure of the dispensing device being among other things simplified by, as a minimum: an elastic deformable sealing element (32) behind or flush with a dispensing surface (S3) of the plate, in its closed position and with a part that is movable relative to the dispensing opening (31) so as to open when the liquid product is expelled; an outwardly convex deformable partition (11) forming the chamber; and means enabling a user to apply pressure in order to compress the deformable partition and reduce the chamber, the deformable partition returning by elasticity to its uncompressed position to bring about aspiration.

Description

GEL DISPENSER

The invention relates to the field of dispensers for medium or high viscosity products, such as for example gel or cream-type cosmetic products, which need to be kept safe from the air. The invention relates more particularly to a dispenser delivering a dose of product on a presentation tray, through a hole made in this tray, the hole then being closed sealingly.

Certain cosmetic products used, for example in the form of gel or paste, of high viscosity, must be kept away from the air so as not to deteriorate. Patent application WO 2005/087618 teaches a dispenser with a sealed dispensing valve for maintaining a product of medium to high viscosity, protected from air. The patent application WO 2005/087618 teaches in particular a valve disposed in a concave plate to collect the expelled product. However, this type of dispenser requires a complex arrangement of many elements of reduced size. In addition this document teaches a complex activation of the sealed valve by a connection with a second control valve of a supply opening communicating with a reservoir.

The present invention therefore aims to remedy one or more of the disadvantages of the prior art by providing a simplified device for dispensing liquid product of medium to high viscosity, such as a cream or a gel, the product being presented to a user on a dispensing tray and the product being kept out of the air.

This objective is achieved by means of a device for dispensing a liquid product of medium to high viscosity, the liquid product being stored in a tank of variable capacity corresponding to the quantity of product contained, the tank supplying a chamber with liquid product by a supply opening with a non-return valve preventing the liquid product from circulating from the chamber to the reservoir, the liquid product being expelled from the chamber to a dispensing opening made in a movable distribution element, characterized in that includes at least: a resilient and deformable sealing element plugging the dispensing opening in a closed position, the sealing element comprising at least one movable part relative to the movable dispensing element, to open when the liquid product is expelled and the sealing member tending to return, by elasticity, in the closed position, after expulsion,

a deformable and elastic partition whose inner wall forms a first part of the chamber, the deformable partition being bulged towards the outside of the chamber, in an uncompressed position, and extending to a lower rigid partition in which is carried the feed opening or ^* to a rigid side wall connected to the lower rigid partition, the deformable baffle comprising an expulsion orifice of the first part of the chamber, the edges of the orifice expulsion of the deformable partition being extended by a determined stiffening extension duct which extends, in a sealed manner, to the dispensing opening and

connecting means between, on the one hand, a bearing surface of the mobile distribution element, on which a pressure is applied by a user, and, on the other hand, the edges of the orifice of expulsion of the partition. deformable partition or a curved outer wall of the deformable partition, to compress the deformable partition and reduce the volume of the chamber and to expel the liquid product to the dispensing opening, the deformable partition, at the end of the application of pressure by the user, returning by elasticity to its uncompressed position to achieve aspiration of liquid product into the chamber through the feed opening.

According to another feature, the bearing surface of the movable dispensing element is flat or recessed curved and arranged around a dispensing orifice through which the dispensing opening opens, the elastic and deformable sealing element. , in its closed position, being set back or in the extension of the bearing surface. According to another feature, the sealing member is a disc resting on the rim of the dispensing orifice, with at least one attachment point on the rim of the dispensing orifice.

According to another feature, the disc is fixed on the edge of the dispensing orifice over its entire periphery, the disc having a plurality of slots separating the disc into a plurality of moving parts, support arms of at least one of the moving parts. being arranged across the dispensing opening.

According to another feature, the disk is disposed in a recess of the movable distribution element, of greater depth than the thickness of the disk.

According to another feature, said movable portion of the sealing element, in the closed position, bears against a protruding sealing edge towards said movable part and belonging to the movable distribution element.

According to another feature, the sealing element is connected to a part comprising the deformable partition the duct extending from the expulsion orifice of the partition to the dispensing opening, the sealing element being split, and curved towards the outside of the chamber, the part being made with its deformable duct and of inferior rigidity to the deformable partition.

According to another feature, the mobile distribution element is movable in translation and comprises a lateral guide surface in a cylinder, the extension duct coming opposite or in the distribution opening, bearing against the mobile distribution element the extension duct being of greater rigidity than the movable partition so that the pressure applied by the user on the bearing surface compresses the deformable partition, the deformable partition then pushing the movable distribution element back to its uncompressed position. According to another feature, the extension duct is deformable, the extension duct deforming after the deformable partition, under the pressure applied by the user, to reduce further the volume of the chamber and expel a first additional dose of liquid product.

According to another feature, the extension conduit is a bellows conduit. In another feature, the dispensing device comprises an upper abutment ring against a peripheral upper surface of the movable dispensing member, the lateral guide surface having a rounded profile allowing rotation to effect an inclination of the movable member. distribution with respect to its orientation in its rest position. According to another particularity, the movable distribution element closes a storage space in which is disposed the deformable partition, the connecting means between the bearing surface of the movable distribution element and the outer wall of the deformable partition. , comprising first curved elastic tabs connected to a face of the movable distribution member disposed towards the deformable partition, second curved elastic tabs, linked to this face, bearing against a wall of the storage space.

According to another feature, the connecting means between the bearing surface of the movable distribution member and the outer wall of the deformable partition, comprise at least one rigid lug connected to a face of the movable distribution member arranged towards the deformable partition.

According to another feature, a push button, movable in translation in the mobile distribution member, comprises at least one rigid lug bearing on the outer wall of the deformable partition extending between its expulsion orifice and the rigid partition. to which extends the deformable partition, for compressing the deformable partition when the button is pressed and deliver a second additional dose of liquid product, the deformable wall then pushing the button returning, by elasticity, to its uncompressed position. Other features and advantages of the present invention will appear more clearly on reading the description below, made with reference to the accompanying drawings, in which: - Figure 1 shows a sectional view of an exemplary dispensing device according to the invention in the suction phase;

- Figure 2 shows a sectional view of an exemplary dispensing device according to the invention in the expulsion phase; - Figure 3 shows a sectional view of another example of dispensing device according to the invention;

- Figure 4 shows a detailed sectional view of the expulsion opening of a dispensing device according to the invention;

FIGS. 5 and 6 each represent a perspective view of an exemplary elastic element for closing the expulsion opening of a dispensing device according to the invention;

FIG. 6bis is a perspective view of an exemplary dispensing opening according to the invention;

FIG. 7 represents a view from above of an example of a dispensing device according to the invention;

- Figure 8 shows a sectional view of the upper part of the device shown in Figure 7;

- Figures 9 to 11 each show a sectional view of the upper part of an exemplary dispensing device according to the invention. The invention will be described with reference to the figures mentioned above. A liquid product of medium to high viscosity, such as for example a cosmetic product of gel or cream type, which must be kept out of the air, is stored in a reservoir (2) of variable capacity corresponding to the quantity of product stored. US Pat. No. 5,152,434 for example describes such a tank in a pump with a first piston limiting a pumping chamber fed by a reservoir arranged in a cylinder and limited by a second movable piston. In a nonlimiting manner, a movable piston (23) is disposed opposite a liquid supply opening (22) and slides in a cylinder (24), the cylinder (24) and the piston (23) delimiting the tank (2). The tank (2) feeds a chamber (1) for pumping through an aperture (22) for feeding to the valve (21) non-return. The nonreturn valve (21) prevents the liquid product from circulating from the pump chamber (1) to the reservoir (2) and allows a circulation (F1) of liquid from the reservoir (2) to the chamber (1), as shown in FIG. 1. Without limitation, the nonreturn valve (21) comprises a ball or a needle against a frustoconical edge of the liquid supply opening (22) or a membrane which closes the liquid supply opening (22) or other blocking element of the feed opening, holding elements of the obstruction element being, for example, arranged in the chamber (1), in front of [opening (22) supply.

The liquid is sucked into the chamber (2) through the feed opening (22), then the liquid is expelled (F3) from the pumping chamber (2) through a dispensing aperture (31) made in a tray ( 3) of distribution, as shown in Figure 2. One or more partitions (11, 12, 14, 37) surrounding the chamber provide a tight junction between the opening (22) for supply and the opening (31) of distribution. A dose (G) of product placed on a distribution surface (S3) of the tray (3) is thus available to a user. In a nonlimiting manner, the upper surface (S3) of the distribution plate (3) is concave or straight, the dispenser being, for example, positioned with its distribution surface (S3) upwards. During a suction (F1) of the liquid contained in the reservoir (2), in the chamber (1) for pumping, the volume of the reservoir (2) decreases so that its capacity corresponds to the volume of liquid contained. The piston (23) advances (F2), for example, towards the opening (22) of supply as the liquid is sucked into the chamber (1) pumping. As shown in Figure 1, the suction (F1) of liquid in the chamber (1) through the opening (22) is performed during an expansion of the chamber (1). The chamber (1) being formed in part by a deformable partition (11), the expansion of the chamber is due, for example, to a movement (M1) of extension of the partition (11) deformable. In a nonlimiting manner, the maximum volume of the chamber corresponds to a position at rest or partially compressed of the partition (11) deformable. During an expansion of the chamber, the liquid exiting the reservoir (2) pushes the valve (21) anti- return and causes a movement (F2) up the piston (231) in the cylinder (24). Since the tank does not contain air and the chamber (1) for pumping is completely filled with liquid product, the liquid product to be dispensed comes into contact with the air only when it leaves the opening (31) of distribution. Without limitation, the reservoir empties until the piston (23) comes into _abutment against the opening (22) supply. In a nonlimiting manner, the piston (23) defining the reservoir, comprises on its outwardly facing face, a hooking means, such as a threaded hole (231), for hanging a threaded rod to pull the piston (23) out of the cylinder (24) to refill the tank (2).

The deformable partition (11), whose inner wall partially forms the chamber (1) for pumping, is arranged in a space (30) for storing the dispenser. The deformable partition is for example fixed to rigid walls of the pump or part of a room, such as a deformable elastic bell, included in the pump. In a nonlimiting manner, the storage space (30), for example of cylindrical shape, extends above a lower partition in which the opening (22) of supply is made. The lower partition, in a nonlimiting manner, common to the cylinder of the reservoir, carries out, for example, a wall (37) of the lower chamber (1) pumping. The lower partition is, for example, extended at its periphery by a partition (35) side. In a nonlimiting manner, the partition (35) side is circular, rounded or angular section forming for example a polygon such as a square, a hexagon or an octagon. The storage space (30) is, for example, closed on the top by the distribution tray (3). In a nonlimiting manner, the plate is movable to be pressed by a user or a push button (38) is made in the plate (3). Pressing the plate or the button, in conjunction with the deformable partition, deforms and compresses (M2) the deformable partition to reduce the volume of the chamber and expel the liquid product through the dispensing opening.

The deformable partition is, for example made by a portion (11) curved deformable and elastic, a bell (11, 12, 13, 14) in which is carried out in part, the chamber (1) pumping. The bell is maintained by connecting means in the storage space (30). The bell comprises, for example, a rigid ring (13) bearing against a side wall (36, 351) of the storage space (30). The side wall bearing against the ring (13) for holding the bell, is for example the side wall (351) delimiting the storage space (30) or a wall (36) formed by a cylindrical ring extending the lower wall (37) of the storage space (30), as shown in FIG. 3. This bearing ring, of inside diameter corresponding to the outside diameter of the support ring (13), is for example arranged around the feed opening (22). In a nonlimiting manner, the rigid retaining ring is, for example, extended on one side by the elastic convex portion (11) and on the other side by a sealing lip (14) bearing against the surface. (37) below, around the feed opening (22). The curved portion (11) is extended, without limitation, by a tube (11) or a connecting duct with the plate (3), opening opposite the opening (31) of distribution.

The tube, for example of circular cross section, is inserted into a housing (39) of the plate (3) clamped around the rigid tube (12) and holding the tube (11) with the distribution plate (3). In another example, as shown in Figure 10, a duct bellows or accordion, deformable, is fixed, for example, by gluing, to the distribution tray.

According to another embodiment, the bell comprises a lower ring (15) fixed, for example by gluing, against the lower or side wall (37) of the storage space (30) and around the opening (22). ) power supply. Opposite the lower wall (37), the glued ring (15) is extended as previously described, by the portion (11) curved deformable and elastic and the tube or the duct bellows.

An elastic and deformable sealing element (32), placed on the plate (3) or connected to the part forming the deformable chamber, closes or opens the outlet opening (31). The sealing element, for example, disposed on the plate, has a predetermined maximum thickness (H32) and a bearing surface determined greater than the cross section of the opening (31) of distribution. In a nonlimiting manner, the bearing surface of the sealing element is round, oval, rounded or angular, forming for example a polygon such as a square, a hexagon or an octagon. The sealing element disposed on the plate, such as for example a flexible and deformable plastic disc, comprises at least one attachment point (321) with the plate (3) and at least one moving part (322). away from the opening (31) to let liquid product out. The elastic sealing element (32) is, for example, arranged on the plate (3), in a nonlimiting manner, in a recess (320) of depth (H3) determined greater than the thickness (H32) of the sealing member, so that the sealing element in the closed position, does not protrude above the surface ^"(S3) of the upper plate (3) of distribution. the recess also has a cross section encompassing the surface of the sealing element.

In another example, the sealing element is connected to a duct extending the deformable wall, the sealing element being set back relative to the upper surface of the plate.

By its elastic properties, the sealing member returns to the closed position of the dispensing opening (31), plated around the edge of the opening, after the passage of the liquid product. The sealing element is for example fixed by gluing or clamping. The plate (3) or respectively the sealing element (32) comprises, for example, a pin (324) protruding from being inserted into a clamping hole made in the sealing element (32) or respectively in the tray (3).

The user passing his fingers along the distribution surface (S3) passes over the sealing element (32), without abutting against the sealing element (32) and does not risk, for example, accidentally open the dispensing opening, thus keeping the product, for example gel, out of the air. The sealing element (32), disposed in the recess (320), thus has a continuous external appearance with the upper surface (S3) of the distribution plate (3). Plating, in the closed position, of the sealing element (32) is ensured by its elastic properties and by the suction in the pumping chamber (1).

FIG. 5 represents, for example, a disc (32a) comprising a first zone (321a) fixed, for example by gluing, to the plate (3) and a second zone (322b) movable resting on a bearing surface of the plate

(3). The first and second zones surround a third movable area (322a) of the disc (32a) disposed opposite the dispensing aperture (31).

FIG. 6 represents an example of a split disk (32b) comprising a peripheral zone (321b) fixed, for example by gluing, to the plate (3). In a nonlimiting manner, the slots (3200) separate the split disc (32b) which comprises movable central parts closing the dispensing opening and resting against a crosspiece arranged transversely to the dispensing aperture (31) of the tray ( 3), as shown in Figure 6a. Each movable portion of the slotted disk (32b) comprises a zone (322d) against one or more arms (325) and a zone (322c) for closing a passage for the liquid product. In a nonlimiting manner, the disk comprises for example two slots (3200) passing through the center of the disc (32b) split, separating the movable portion of the disk in four parts resting on one or more arms (325) of a spider. four arms. The number of media arms (325) is, for example, equal to the number of separate moving parts of the split disk (32b). The support arms (325) are arranged, for example with their upper bearing surface in the same plane as the surface (326) for fixing the plate (3) with the disk (32b).

According to an alternative embodiment, as shown in Figure 4, the movable portion of the sealing member abutting against the plate (3), rests against a ridge (323) protruding from the plate (3). The sealing element, such as for example a flexible and deformable disk, deforms slightly in contact with the edge to improve the sealing in the closed position of the opening (31) of distribution. The pressure force of the element (32) sealing against the plate is due in particular to its elasticity and suction phenomenon in the chamber (1) pumping. According to an alternative embodiment, the sealing element extending the deformable part forming, in part, the chamber (1) for pumping comprises a top surface slotted and curved outwards, as shown in Figure t1. The slots provide, for example, portions opening outward or remaining tight together, tightly, at rest.

In order to dispense a dose (G) of liquid product, for example gel or cream, onto the upper surface (S3) of the distribution tray (3), the user exerts pressure on the dispensing device by means pressure device for compressing (M2) the deformable partition and reducing the volume of the chamber (1) for pumping. The liquid product then exits by pushing the sealing element (32), as shown in FIG. 2. The user presses for example on the upper surface (S3) of the movable plate (3) or on a button (38) pusher arranged in the tray (3) movable or fixed. The dispensing device is then returned to its initial position by elasticity, the deformable partition returning to its original shape, by extension (M1) of the deformable partition. An expansion of the pumping chamber (1) then causes suction in the pumping chamber and plates the sealing member (32) against the edge of the sealingly closed dispensing opening (31). The suction phenomenon and the elastic properties of the sealing element tend to bring the sealing element back into the closed position of the dispensing opening during a suction (F1) in the chamber (1). pumping, as shown in Figure 1. Without limitation, as shown in Figure 2, the deformable partition is compressed by a pressure of the user on the upper surface (S3) of the tray (3) of presentation. The compression force (M2) exerted by the user is, for example, transmitted by the plate (3) directly to the deformable partition or to the rigid tube (12) extending the deformable partition, the rigid tube (12) exerting a compression force on the deformable elastic partition (11) which is compressed, the chamber (1) pumping being reduced. When the user no longer exercises his pressure, the deformable portion deforms in extension, by elasticity and pushes the tray or 1st tube.

According to an alternative embodiment, the deformable partition comprises an extended opening by a duct (120) with bellows, deformable, of rigidity greater than the rigidity of the partition (11) deformable, as shown in Figure 10. This conduit (120) With bellows is, for example, crimped into a housing (39) under the tray, to open in front of the opening (31) of distribution in the tray (3). The duct (120) with bellows of greater rigidity than the partition (11) deformable, for example transmits a first pressure force on the deformable partition, then the increase in pressure and application of a second compression force causes, for example, the deformation of the bellows conduit (120). Advantageously, below a determined pressure force, the deformation of the conduit (120) bellows is negligible to deliver a first determined dose of viscous liquid, such as gel. The application of a higher pressure force then allows the deformation of the duct (210) bellows just after the deformation of the partition (11) deformable. The deformation is then greater and achieves a greater reduction of the chamber and to increase the dose of liquid product dispensed. According to an alternative embodiment, the deformable partition (11) comprises an extended opening through a flexible tube (121) in connection with the sealing element and held, for example by gluing or clamping, in a passage of the distribution plate. as shown in FIG. 11. Advantageously, pressure on the distribution plate causes deformation of the part comprising the flexible tube (121) and deforms in particular the upper edge of the tube. The deformation of the upper edge of the flexible tube (121) then implies an opening of the sealing element (32). So ^"not limited to, the lower surface of the tray comes up against the partition (11) deformable. In a nonlimiting manner, one piece carries the sealed chamber between the opening (22) supply and the opening (31) distribution. According to an exemplary embodiment, as represented in FIG. 3, the plate (3) is connected, by its lower face, to flexible elastic tabs (301) resting on the deformable partition (11), for example curved, or on a wall of the storage space (30). The pressure exerted by the user is transmitted in part by the elastic flexible tabs (301) which exert, for example, a compressive force on the portion (11) curved elastic of the partition (11) deformable. During suction, flexible tabs exert a return force in initial position on the plate (3), the flexible tabs being, for example, resting on a wall of the storage space (30) in which is disposed the partition (11) deformable,.

According to an exemplary embodiment, the plate (3) comprises on its lower face directed towards the deformable partition (11), rigid support lugs (302) coming against the deformable partition (11), such as for example the part (11) ) resilient flexible curved bell, as shown in Figure 9. In a non-limiting manner, the rigid support legs (302) are arranged against the deformable convex wall and follow the shape of the partition at rest or are arranged in bearing against the elastically deformable partition partially compressed in the rest position of the dispensing device, the plate being held against an abutment element in height, such as for example an upper ring (4) bearing on the periphery of the plate (3 ).

According to an exemplary embodiment, in a non-limiting manner, the compression of the pumping chamber is performed by a user pressing a push button (38) movable in translation relative to the plate (3). In a nonlimiting manner, the push button movable in translation is associated with the fixed or movable plate (3). The push button (38) comprises for example a tab (303) rigid against the deformable wall, such as the curved portion of a bell. The button (38) is for example guided by a partition (381) coming against a bearing surface (351) made by a partition (35) of the dispensing device or the button (38) is guided laterally by a surface ( 361) for supporting the plate (3). In a nonlimiting manner, the plate (3) movable, receiving the button (38), also allows to exert a compressive force and comprises, without limitation, - a portion (362) covering a tapered portion of the button (38), so that the support on the plate (3) drives the button (38) and that when the user only presses the button (38), the plate (3) is not moved. Pressing the button (38) pushes for example the distribution of a determined dose less than the dispensed dose by pressing the plate (3).

Without limitation, the tube (12) or the bellows duct connecting the plate (3) and the deformable partition, such as the portion (11) curved compressible bell, is disposed at the top of the deformable partition made convex , the tube or the duct being centered with respect to the deformable curved partition, as shown in FIG. 8, or off-center, as represented in FIG. 9. According to an alternative embodiment, not shown, a central tube connected to the partition deformable, opens into a passage made centrally in the plate (3), the passage in the plate (3) transversely traversing the plate (3) and opening to the upper surface (S3) of the plate (3) in a peripheral zone of the plate (3). In a nonlimiting manner, the distribution plate (3) is movable and guided in translation relative to the partition (35) side forming the space (30) storage in which is disposed the deformable partition partially delimiting the chamber. According to an exemplary embodiment, the guide is formed by a side wall of the plate (3) having a bearing surface against a guide surface (351) of a partition of the distributor, as shown in FIG. support of the plate (3) coming, for example, against a wall of the space (30) of storage, provides a guide in translation and allows to maintain the plate (3) to maintain its orientation, the plate being for example to the horizontal. According to another embodiment, the plate comprises rounded lateral edges allowing a translation and an inclination by a pivoting of the plate (3). Without limitation, the surface (S3) upper plate (3) bears against a ring (4) providing a stop height. The ring (4) is, for example, fixed by screwing and abuts against a peripheral portion of the upper surface (S3), to limit the displacement of the plate (3) upwards. In a nonlimiting manner, the flexible tabs (301) bearing against the deformable partition or against the wall of the storage space (30) make it possible to guide the plate and exert a force that is added to the force back to the uncompressed position of the deformable partition, to bring the tray to the initial position, for example horizontally. Advantageously, the tilting plate, bearing against the upper limiting ring (4), allows the user to exert a lever arm by pressing on one side, at the periphery of the plate, the pivoting plate, support on the opposite side against the ring (4) stop.

Advantageously, the curved deformable partition, such as the deformable curved portion (11) of the bell, can be compressed by supports at a plurality of points. In addition, the plate which can be left free to rotate, allows to exert a minimal support, the pressure force being better controlled by the user than in the case of a pumping chamber made with a piston in a cylinder. In addition, the piston, according to the prior art, must be in sealed connection with the cylinder, unlike the present invention where the movable element, such as the tray, does not require a sealed connection with the cylinder. The arrangement according to the present invention allows on the contrary to support in several ways, with a different force, the plate being held flat or one or more rotations being allowed, for example for the inclination of the plate. The construction of a dispensing device according to the invention thus offers many possibilities with few parts for the construction. In addition, the dispenser is achievable using only plastic materials, which implies that the pump is fully recyclable and resistant to corrosive products. Advantageously, the part comprising the deformable partition, for example made by molding, allows many forms, according to many thicknesses and according to different elastic properties.

It should be obvious to those skilled in the art that the present invention allows embodiments in many other specific forms without departing from the scope of the invention as claimed. Therefore, the present embodiments should be considered by way of illustration, but may be modified within the scope defined by the scope of the appended claims, and the invention should not be limited to the details given above.

Claims

1. Device for dispensing a liquid product of medium to high viscosity, the liquid product being stored in a reservoir (2) of variable capacity corresponding to the quantity of product contained, the reservoir (2) feeding a chamber (1) in liquid product through a supply opening (22) with a nonreturn valve (21) preventing the liquid product from circulating from the chamber (1) to the reservoir (2), the liquid product being expelled from the chamber (1) to a dispensing opening (31) made in a movable element (3) dispensing, characterized in that it comprises at least:

an elastic and deformable sealing element (32) plugging the dispensing opening (31) in a closed position, the sealing element (32) comprising at least one part (322) movable relative to the element (3) mobile distribution, to open when the liquid product is expelled and the sealing member (32) tending to return, by elasticity, in the closed position, after expulsion, - a partition (11) deformable and elastic whose inner wall forms a first part of the chamber, the deformable partition (11) being curved towards the outside of the chamber, in an uncompressed position, and extending to a lower rigid partition in which is made the supply opening (22) or to a rigid lateral partition connected to the lower rigid partition, the deformable partition (11) comprising an expulsion orifice of the first part of the chamber, the edges of the orifice expulsion of the partition (11) deformable being extended by a determined stiffness extension pipe which extends, sealingly, to the dispensing opening and

means (3, 38, 301, 302, 303) for connecting a support surface of the mobile distribution element (3) on which a pressure is applied by a user, and on the other hand the edges of the expulsion orifice of the deformable partition (11) or a curved outer wall of the partition (11) deformable, to compress the deformable partition and reduce the volume of the chamber (1) and to expel the liquid product to the dispensing opening, the deformable partition, at the end of the application of pressure by the user, returning by elasticity to its uncompressed position to achieve aspiration of liquid product into the chamber through the feed opening.

2. liquid product dispensing device according to claim 1, characterized in that the bearing surface of the movable dispensing member is flat or recessed curved and arranged around a dispensing orifice through which opens the opening distribution, the elastic and deformable sealing element (32), in its closed position, being recessed or in the extension of the bearing surface (S3).

3. Device for dispensing liquid product according to claim 2, characterized in that the sealing element (32) is a disc (32a, 32b) resting on the rim of the dispensing orifice, with at least one fixing point on the edge of the dispensing orifice.

A liquid product dispensing device according to claim 3, characterized in that the disk is fixed on the rim of the dispensing orifice over its entire periphery (321b), the disk having a plurality of slots separating the disk into several moving parts (322c, 322d), support arms of at least one of the movable parts being arranged across the opening (31) of distribution.

5. Device for dispensing liquid product according to claim 3 or 4, characterized in that the disc is disposed in a recess (320) of the element (3) movable distribution, depth (H3) greater than the thickness (H32) of the disc.

6. Device for dispensing liquid product according to one of claims 3 to 5, characterized in that said movable portion (322, 322b, 322d) of the sealing member, in the closed position, is in support against a sealing edge (323) projecting towards said movable part and belonging to the mobile distribution element (3).

7. Device for dispensing liquid product according to claim 1 or 2, characterized in that the sealing element (32) is connected to a part comprising the partition (11) deformable the duct extending from the orifice d expulsion of the partition (11) to the dispensing opening, the sealing element (32) being split and curved towards the outside of the chamber (1), the part being made with its deformable duct and of inferior stiffness to the partition (11) deformable.

8. liquid product dispensing device according to one of claims 1 to 6, characterized in that the movable element (3) of distribution is movable in translation and comprises a lateral guide surface in a cylinder, the extension pipe coming into facing or in the dispensing opening, bearing against the mobile distribution element (3), the extension pipe being of greater rigidity to the movable partition so that the pressure applied by the user on the bearing surface , compresses the deformable partition, the deformable partition (11) then pushing the movable element (3) of distribution back to its uncompressed position.

9. A liquid product dispensing device according to claim 8, characterized in that the extension conduit is deformable, the extension conduit deforming after the partition (11) deformable, under the pressure applied by the user, to further reduce the volume of the chamber and expel a first additional dose of liquid product.

10. Liquid product dispensing device according to claim 9, characterized in that the extension duct is a duct (120) with bellows.

11. Device for dispensing liquid product according to one of claims 8 to 10, characterized in that it comprises a ring (4) upper abutment against a peripheral upper surface of the element. movable (3) distribution, the lateral guide surface having a rounded profile for rotating to achieve an inclination of the movable member (3) distribution relative to its orientation in its rest position.

12. Device for dispensing liquid product according to one of claims 1 to 11, characterized in that the movable distribution member closes a space (30) of storage in which is arranged the partition (11) deformable, the connecting means between the bearing surface of the movable dispensing element (3) and the outer wall of the deformable partition (11), comprising first curved elastic tabs (301) connected to a face of the movable dispensing element (3). disposed towards the partition (11) deformable, second tabs (301) resilient curved, bonded to this face, bearing against a wall of the space (30) storage.

13. Device for dispensing liquid product according to one of claims 1 to 11, characterized in that the connecting means between the bearing surface of the movable element (3) distribution and the outer wall of the partition (11). deformable, comprise at least one lug (302) rigidly connected to one side the movable element (3) distribution disposed towards the partition (11) deformable.

14. Device for dispensing liquid product according to one of claims 1 to 13, characterized in that a button (38) push, movable in translation in the movable member (3) distribution, comprises at least one tab (303) rigid bearing against the outer wall of the partition (11) deformable extending between its expulsion orifice and the rigid partition to which extends the partition (11) deformable, to compress the deformable partition when the button is pressed and deliver a second additional dose of liquid product, the deformable partition then pushing the button returning, by elasticity, to its uncompressed position.