EP0743263A1 - Packaging and dispensing device for liquid or viscous products - Google Patents

Packaging and dispensing device for liquid or viscous products Download PDF

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Publication number
EP0743263A1
EP0743263A1 EP96401082A EP96401082A EP0743263A1 EP 0743263 A1 EP0743263 A1 EP 0743263A1 EP 96401082 A EP96401082 A EP 96401082A EP 96401082 A EP96401082 A EP 96401082A EP 0743263 A1 EP0743263 A1 EP 0743263A1
Authority
EP
European Patent Office
Prior art keywords
pocket
container
product
air
valve
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP96401082A
Other languages
German (de)
French (fr)
Other versions
EP0743263B1 (en
Inventor
Jean-Louis Gueret
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
LOreal SA
Original Assignee
LOreal SA
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Filing date
Publication date
Application filed by LOreal SA filed Critical LOreal SA
Publication of EP0743263A1 publication Critical patent/EP0743263A1/en
Application granted granted Critical
Publication of EP0743263B1 publication Critical patent/EP0743263B1/en
Anticipated expiration legal-status Critical
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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65DCONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D83/00Containers or packages with special means for dispensing contents
    • B65D83/0055Containers or packages provided with a flexible bag or a deformable membrane or diaphragm for expelling the contents
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B05SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05BSPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B11/00Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use
    • B05B11/0005Components or details
    • B05B11/0037Containers
    • B05B11/0039Containers associated with means for compensating the pressure difference between the ambient pressure and the pressure inside the container, e.g. pressure relief means
    • B05B11/0044Containers associated with means for compensating the pressure difference between the ambient pressure and the pressure inside the container, e.g. pressure relief means compensating underpressure by ingress of atmospheric air into the container, i.e. with venting means
    • B05B11/00446Containers associated with means for compensating the pressure difference between the ambient pressure and the pressure inside the container, e.g. pressure relief means compensating underpressure by ingress of atmospheric air into the container, i.e. with venting means the means being located at the bottom of the container or of an enclosure surrounding the container
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B05SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05BSPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B11/00Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use
    • B05B11/01Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use characterised by the means producing the flow
    • B05B11/02Membranes or pistons acting on the contents inside the container, e.g. follower pistons
    • B05B11/026Membranes separating the content remaining in the container from the atmospheric air to compensate underpressure inside the container
    • B05B11/027Membranes separating the content remaining in the container from the atmospheric air to compensate underpressure inside the container inverted during outflow of content

Definitions

  • the present invention relates to devices for packaging and dispensing a liquid or pasty product.
  • Devices comprising a container having a cylindrical body in which a piston can slide.
  • the latter delimits inside the container a space of variable volume containing the product.
  • the container is provided with a pump for withdrawing product from said space.
  • the piston moves in the container in response to a product leaving when the pump is actuated, to keep the stored product away from the air in the container.
  • An advantage of this type of device is that it can be used both upside down and upside down.
  • the use of a movable piston poses problems of product leakage when the latter is a liquid, so that the use of these known devices has remained limited to the packaging and distribution of viscous products such as a toothpaste paste.
  • the German utility model G 90 13 168.1 discloses a device for packaging and dispensing a liquid or pasty product, comprising a container capable of containing said product, this container having a product outlet orifice, equipped with a pump comprising a valve able to allow the product to leave without entering the air, the container further comprising a bottom wall constituted by a pocket delimiting inside the container a space containing said product, said pocket being capable of move in the container in response to a product departure to reduce the volume of said space and keep the product away from the air in the container.
  • the pocket is fixed at one end at its periphery to the container and it is capable of deforming to reduce the volume of said space until it substantially matches the shape of the interior of the container.
  • the pocket is folded on itself when the container is full of product and it unfolds gradually as the product leaves.
  • the bag is trapped inside the container by a rigid wall pierced with an orifice allowing air to enter the container, on the side of the face of the bag which is opposite to the product.
  • the device described in this German utility model is used with the pump at the bottom and is not suitable for use with the pump at the top because there is a risk in this case that the product is retained in a cavity formed by the folds of the bag and does not can be dispensed by the pump.
  • the pocket could cover the air intake opening in the container and hinder the correct functioning of the device.
  • German patent application DE 1,586,797 discloses a device for packaging and dispensing a liquid or pasty product comprising a container with a deformable wall capable of containing said product, this container having an outlet orifice equipped with a valve able to allow the product to leave without entering the air, the container further comprising a pocket delimiting inside the container a space containing said product, said pocket being able to move in the container in response to a product leaving to reduce the volume of said space and keep the stored product away from air in the container, this pocket being fixed at one end at its periphery to the container and being able to expand to reduce the volume of said space.
  • the pocket fills with air through an opening in the container, fitted with a valve intended to prevent the air from escaping from the pocket when pressed on the walls of the container to cause the expulsion of the product.
  • the pocket being elastically deformable, it contains air which is in the compressed state.
  • the object of the present invention is to propose a new device for packaging and dispensing a liquid or pasty product, of the type comprising a container capable of containing said product, this container having a product outlet orifice equipped with a pump comprising a valve capable of allowing the product to leave without air entering, the container further comprising a bottom wall constituted by a pocket delimiting inside the container a space containing said product, said bag being able to move in the container in response to a product departure to reduce the volume of said space and keep the product stored away from air in the container, said bag being fixed at one end at its periphery to the container and being able to deform to reduce the volume of said space until it conforms substantially to the shape of the interior of the container, which can be used with the pump at the top or the pump at the bottom and which allows to distribute almost all of the product contained inside the container.
  • the pocket is made of an elastically deformable material.
  • the depression created in said space by the departure of the product causes the deformation of the pocket in the direction tending to decrease the volume of said space, until the cancellation of said depression.
  • the pocket advantageously occupies, thanks to its elasticity, in its state of maximum expansion almost all of the volume initially occupied by the product, regardless of the shape of the container.
  • the invention thus allows a wide variety of shapes for the container, while the devices of the prior art with movable piston necessarily had to have a cylindrical body.
  • the pump is located in the upper part of the container during use.
  • the pocket is capable of deploying at first without its wall tensing and then, at a second stage, of expanding elastically.
  • said pocket can be deployed initially without its wall stretching to occupy more than half of the space initially occupied by the product, then in a second step, the pocket can expand elastically to occupy the remaining space freed up by the product.
  • the pocket is capable of expanding elastically from a certain degree of emptying of the container, it has fewer folds when the container is full than the pockets of known devices which are not made of an elastic material; so the risks associated with blocking the air intake opening are reduced.
  • the pocket is internally provided with a lining made of a material which is not elastically deformable but very impermeable to gases, said lining being able to deploy to accompany the deformation of the pocket until the wall of the latter is stretched.
  • the pocket is substantially stretched when the container is full.
  • the pocket can be in the form of a substantially planar elastic membrane when the container is full.
  • the latter can be substantially flat and shaped so that when empty, the bag has moved over a relatively small height, for example between 15 and 20 mm.
  • the device comprises sealing means capable of isolating the interior of the pocket from the ambient air, at least before the first use of the device.
  • These sealing means constitute with the pocket a double sealing barrier favorable to a long-term conservation of the product contained in the container.
  • these sealing means when in place on the container, prevent the bag from inflating by air intake and hinder the operation of the pump used to withdraw the product.
  • the closure means can thus advantageously serve as a tamper-evident witness, insofar as their presence, intact, on the device indicates to the user that it has not been possible to use it previously in a normal manner.
  • FIGS. 1 and 2 show a device 1 for packaging and dispensing a liquid or pasty cosmetic product P, in accordance with the invention.
  • a device 1 for packaging and dispensing a liquid or pasty cosmetic product P in accordance with the invention.
  • This device 1 comprises a container 2 with a rigid wall, generally symmetrical in revolution in the example described, formed by the snap-fit assembly of a body 3 on a base 4.
  • the latter comprises an upper tubular skirt 5 provided at its end free of a rim 6 radially projecting inwards.
  • the body 3 is provided with a lower tubular wall 7, of outside diameter adapted to engage in the tubular wall 5.
  • the tubular wall 7 is connected to the rest of the body 3 by a narrowing of section 8 defining an external annular groove in which the rim 6 engages at the end of the snap fastening of the body 3 on the base 4.
  • the latter comprises a lower tubular skirt 9, externally threaded, for its screwing on a base known in itself and not shown .
  • the body 3 is closed at its upper part by a wall 15 having a neck 16 extending upwards, provided at its upper end with an annular flange 17 radially projecting outwards.
  • a pump 18 known in itself and not described is fixed to the neck 16.
  • This pump 18 comprises a pusher 19 for dispensing product, and it is provided below with a cap 20 shaped to snap onto the annular rim 17 of the neck 16.
  • the pump 18 comprises a tube 21 for taking the product P from the container 2.
  • This tube 21 is engaged in the opening of the neck 16 and extends by its lower end under the wall 15 in an interior space 23 of the container 2 containing the product P.
  • Lateral openings 24, the role of which will be explained below, are arranged at the lower end 22 of the tube 21.
  • a cover 25 covers the neck 16 of the body 3. This cover 25 fits onto the body 3 as shown in FIGS. 1 and 2 until it abuts by its lower edge against a shoulder 26 formed on the external surface of the body 3, and it is provided above in its center with a passage for the pusher 19.
  • the device 1 comprises a pocket 28, having a certain elasticity and appearing in the example described in the form of a bellows in the folded state delimiting inside the container 2 two spaces, one of which is constituted by the interior space 23 above, contains the product P, and the other, inside the bellows, bears the reference 29.
  • the pocket 28 constitutes a deformable waterproof barrier separating the spaces 23 and 29.
  • the interior space 29 communicates through the openings 11 with the outside when the shutter means 14 are removed, as shown in FIG. 2.
  • the pocket 28 is fixed at its lower end at its periphery to the container 2, so that the interior of the bellows communicates via the openings 11 with the ambient air. More specifically, the wall 28 is pinched at its lower end at its periphery between the tubular skirts 5 of the base 4 and 7 of the body 3.
  • the base 4 has an annular lip 30 coaxial with the skirt tubular 5 and defining with the latter an annular groove 31 in which engages the lower end of the tubular skirt 7 of the body 3.
  • the annular lip 30 improves the strength and tightness of the fixing of the pocket 28 on the container 3 by pinching the latter against the radially internal surface of the tubular skirt 7.
  • the wall of the pocket 28 pinched between the body 3 and the base 4 constitutes a seal ensuring a hermetic mounting of the body 3 on the 'base 4.
  • closure means 14 appear in the example described in the form of a cap or suction cup comprising a central housing retained by friction on the fixing foot 12.
  • the wall delimiting this housing radially is extended upwards by a sealing lip 32 extending obliquely radially outward and coming to be applied by its free end to the wall 10 around the openings 11 when the cap 14 is in place.
  • the latter is advantageously provided at its lower end, as shown, with a tongue 33 facilitating its removal.
  • a vacuum is created in the interior space 29 before the cap 14 is put in place by sucking the air through the openings 11 with the aid of an appropriate device, to cause the pocket 28, as shown in FIG. 1.
  • the pocket 28 then occupies a reduced volume in the container 2.
  • the pocket 28 is folded back on itself by suction through the openings 11 while the pump 18 and the cover 25 are not yet in place on the container 2.
  • the container 2 is filled with product under vacuum through the neck 16 then the pump 18 is slammed on the latter and the cover 25 is attached.
  • the pocket 28 is secured to the base 4 alone.
  • the container 2 is filled before the base 4 is attached to the latter with the pocket 28 in the folded state.
  • the filling is then carried out from the bottom, with the pump 18 already in place on the body 3.
  • the base 4 provided with the pocket 28 kept in the folded state by the cap 14 is slammed on the body 3 .
  • the pump 18 includes a valve arranged in a manner known per se to allow the product P to be withdrawn without re-entry of air by the tube 21 into the container. If the user attempts to collect product P by pressing the pusher 19 while the cap 14 is still in place, the pump cannot function correctly to dispense product. By cons, when the cap 14 is removed, the pocket 28 can inflate in the container 2 to reduce the volume of the interior space 23, so that there can not appear in the latter a depression opposing a departure of product. During use, the bag 28 deploys upwards along the axis of symmetry of the container 2 as shown in FIG. 2. The bag 28 can inflate thanks to the air inlet inside this through the openings 11 to occupy all the volume in the container 2 which is released by the product P.
  • the pocket 28 is made of an elastically deformable material such as rubber or a thermoplastic elastomer.
  • One can use a blow molding technique, injection molding or dip molding in particular.
  • the pocket 28 can also be constituted by an assembly of at least two layers of different plastic materials.
  • the pocket 28 may also have a variable thickness making it possible to promote the expansion of selected areas of the pocket.
  • the pocket 28 can be deployed to occupy up to approximately 80% of the volume initially occupied by the product P before its wall is stretched. It is then thanks to its elasticity that the wall of the pocket can be more tight to match the shape of the interior of the container and occupy the 20% of the initial volume remaining.
  • the pocket 28 Given its attachment to the container at its periphery at its lower end, the pocket 28, when it elastically deforms, is first pressed against the wall of the container 2 adjacent to the base 4. The pocket 28 then ensures by progressively pressing against the wall of the container from the bottom upwards the rise of all of the product P in the direction of the sampling tube 21.
  • the pocket 28 is provided internally with a lining made of a material which is not elastically deformable but very impermeable to gases such as polyethylene.
  • the interior of the lining communicates with the ambient air through the openings 11 and the lining can inflate to occupy a maximum of approximately 80% of the volume initially occupied by the product.
  • the pocket deforms thanks to its own elasticity to occupy the 20% of the initial volume remaining, with the appearance of a depression in the interval between the pocket and its lining.
  • FIG. 3 There is shown in Figures 3 and 4 a device 40 according to a second embodiment of the invention.
  • the device 40 differs from the previous one mainly in that a valve 41 is arranged in the air passage making the interior space 29 communicate with the exterior.
  • This valve 41 is shaped to allow an entry of air into the interior space 29 and prevent an exit of air to the outside.
  • the valve 41 only opens when the air enters the pocket 28 when the latter expands and constitutes with the latter when it is at rest in the closed state a double sealing barrier, favorable to long-term storage of the product contained in the container.
  • the pocket 28 can, as in the previous embodiment, inflate until its wall tightens then deform elastically to occupy, as shown in FIG. 4, almost the entire volume initially occupied by the product P to be dispensed.
  • the valve 41 comprises a membrane 42 applied at its periphery to the base 4 and able to deform elastically to release an orifice 43 for the passage of air towards the interior space 29.
  • the membrane 42 is applied to the base 4 at by means of a retaining part 44 forming a tap, slammed on the base 4 with a possibility of rotation around the axis of symmetry of the container 2.
  • the membrane 42 has at its periphery an annular rim 45 engaged in an annular groove 46 of the retaining piece 44.
  • the base 4 is provided on its underside with an annular boss 47 pinching the membrane 42 at the base of the rim 45 to ensure a tight hold of the membrane 42 at its periphery.
  • the membrane 42 has a part 47 of hemispherical shape, the concavity of which faces upwards, extended below by a closing finger 48 capable of being applied to the edges of the aforementioned orifice 43, formed on the retaining piece 44
  • the membrane 42 is shaped so that the hemispherical part 47 is slightly pre-stressed at rest and elastically presses the shutter finger 48 against the edges of the orifice 43 to close it.
  • the valve is thus, in the absence of use of the device 40, in a position for closing the passage making the interior space 29 communicate with the exterior.
  • the base 4 and the retaining piece 44 constitute a valve closing, in a determined angular position of the retaining piece 44, the passage communicating the orifice 43 and the interior space 29.
  • the retaining piece 44 comprises a part forming a plug 49a engaged in a lower tubular extension 49b of the base 4.
  • the retaining piece 44 For storage, the retaining piece 44 is turned so as to close the air passage between the plug 49a and the tubular part 49b. The interior 29 of the pocket 28 is thus isolated from the exterior for good preservation of the product.
  • a tearable film can be fixed externally on two adjacent surfaces of the base 4 and the retaining piece 44 to serve as a tamper-evident indicator. When said film is intact, the user knows that the inside of the pocket 28 has remained isolated from the outside and that the normal operation of the pump 18 has not been possible.
  • FIG. 5 shows a device 50 according to a third embodiment of the invention.
  • This device comprises a tap 51 which can take two angular positions. In a first angular position, the valve 51 can allow air to pass between the interior space 29 and the exterior and, in a second angular position, the valve isolates the interior space 29 from the exterior.
  • the base 4 has at its lower part a tubular wall 52 closed at its lower end 53 and traversed radially by a bore 54.
  • the tap 51 is retained by snapping at 55 on the body 3 of the container 2 with a possibility of rotation around the axis of symmetry of the latter. It has a housing 56 which engages closely on the tubular wall 52 of the base 4.
  • a through bore 57 opens at its radially innermost end into the housing 56 and can come into said second angular position of the valve 51, opposite the bore 54 to establish an air passage with the latter and with the interior space 29.
  • the valve 51 is provided, as shown in FIG. 5, with a membrane 58 capable of closing drilling 57 before the first use of the device.
  • This membrane 58 is removably attached to the tap 51 and has a gripping portion 59 allowing the user to remove it when the device is first used.
  • the pocket 28 is folded back on itself by creating a vacuum in the interior space 29.
  • the membrane 58 advantageously plays the role of a valve when it is on the tap 51 by deforming to allow the passage of air towards the outside during the evacuation of the interior space 29 and by preventing the re-entry of air.
  • the operation of the device 50 is as follows.
  • the user positions the bore 57 of the tap 51 opposite the bore 54 of the base 4 and tears off the membrane 58.
  • the removal of the membrane 58 allows air to enter the interior space 29
  • product P is taken from the interior space 23 and the pocket 28 is deformed to compensate for the reduction in volume caused by the departure of the product P.
  • the user can close the bore 54 by turning the tap 51. The interior space 29 is then isolated from the outside.
  • FIG. 6 Partially shown in Figure 6 is a third embodiment of a device 60 according to the invention.
  • the device 60 comprises a tap 61 equipped with a first valve 62 allowing, in a first angular position of the tap 61, an air entry into the interior space 29 and preventing the exit air from the latter.
  • the valve 62 used is of any type known in itself and has only been shown diagrammatically. It comprises a shutter 63 able to move in the tap 61 between a position for closing a passage 64 making the outside communicate with the interior space 29, and a position allowing air circulation in this passage 64 in direction of the interior space 29.
  • the valve 61 is equipped with a second valve 65 allowing, in a second angular position of the valve 61, an air outlet from the interior space 29 and preventing an entry of air into the latter.
  • the valve 65 is constituted by a membrane comprising a fixing part 66 integral with the valve 61. In the closed position, the valve 65 closes a channel 67 which extends radially in the valve 61 and which opens out at its radially innermost end in a housing 68 in which is engaged a tubular part 69 of the base 4.
  • a nozzle 70 is fixed in the tubular part 69.
  • This nozzle 70 is traversed by a channel 71 opening at its upper end in the interior space 29 and opening at its lower end, by means of a bore 72 passing through the wall of the tubular part 69, outside the latter.
  • the channel 67 is located opposite the bore 72.
  • the end piece 70 has a crenellated upper end, defining lateral openings 73 allowing air to be drawn into the interior space 29 without risk of the channel 71 being blocked by the pocket 28.
  • the tap 61 is fixed by snap-fitting at 74 on the base 4.
  • the tap 61 is positioned in said aforementioned second angular position and the vacuum is created in the interior space 29 by suction through channels 67 and 71.
  • the valve 65 opens and allows the air outlet. Once the vacuum in the interior space 29 has been achieved, the valve 65 closes and prevents the entry of air into this space.
  • the valve can be turned to an intermediate position between the two aforementioned angular positions, in which the bore 72 is closed by the wall of the housing 68 of the valve 61.
  • the valve 61 is rotated to position the passage 64 opposite the bore 72.
  • the valve 62 can open to allow air to enter the interior space 29.
  • the valve 61 is maintained in this angular position during the use of the device. It can be turned again to isolate the interior space 29, during transport for example or for prolonged storage without use.
  • the pocket can be, as illustrated in FIG. 7, in the form of an elastic membrane 80 fixed at its periphery to the wall of the container, initially flat or slightly concave or convex towards the product, and able to deform elastically on a height of 15 to 20 mm for example to match the shape of the interior of the container in response to the product departure.
  • the pocket is shown in FIG. 7 by the dotted line in the position it occupies when the container is empty and in an intermediate position.
  • the pocket is almost stretched when the container is full and it is not necessary to close the container at its lower part by a rigid wall intended to retain the pocket inside the container.
  • FIG. 7 a wall 82 closing the container at its lower end, pierced with an orifice 83 closed before use by a peelable film 84.
  • the wall 82 and the peelable film 84 allow to isolate ambient air the bag 80 before use, for better conservation of the product.
  • the peelable film 84 is removed.
  • the peelable film could be replaced by a self-drying pin.
  • the pocket may have a variable thickness so as to have zones that are more easily deformable than others, with a view to favoring one or more directions of deformation.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Containers And Packaging Bodies Having A Special Means To Remove Contents (AREA)
  • Closures For Containers (AREA)
  • Devices For Dispensing Beverages (AREA)
  • Bag Frames (AREA)
  • Packages (AREA)

Abstract

The packaging and distributor for a liquid or paste (P) comprises a rigid wall product container (2) with an outlet hole. The container is equipped with a pump (18) in its neck (16) comprising a valve allowing the product to leave without air re-entering. The container has a bottom wall (28) constituted by a flexible pocket delimiting a space (23) containing the product. The pocket is capable of being displaced in the container as the product leaves to decrease the volume of the product space and maintain the stored product free from air.

Description

La présente invention concerne les dispositifs de conditionnement et de distribution d'un produit liquide ou pâteux.The present invention relates to devices for packaging and dispensing a liquid or pasty product.

On a proposé des dispositifs comprenant un récipient présentant un corps cylindrique dans lequel peut coulisser un piston. Ce dernier délimite à l'intérieur du récipient un espace de volume variable contenant le produit. Le récipient est muni d'une pompe pour prélever du produit dans ledit espace. Le piston se déplace dans le récipient en réponse à un départ de produit lorsque la pompe est actionnée, pour maintenir le produit stocké à l'abri de l'air dans le récipient. Un avantage de ce type de dispositif est de pouvoir être utilisé aussi bien tête en haut que tête en bas. Par contre, l'utilisation d'un piston mobile pose des problèmes de fuite de produit lorsque ce dernier est un liquide, de sorte que l'emploi de ces dispositifs connus est resté limité au conditionnement et à la distribution de produits visqueux tels qu'une pâte de dentifrice.Devices have been proposed comprising a container having a cylindrical body in which a piston can slide. The latter delimits inside the container a space of variable volume containing the product. The container is provided with a pump for withdrawing product from said space. The piston moves in the container in response to a product leaving when the pump is actuated, to keep the stored product away from the air in the container. An advantage of this type of device is that it can be used both upside down and upside down. On the other hand, the use of a movable piston poses problems of product leakage when the latter is a liquid, so that the use of these known devices has remained limited to the packaging and distribution of viscous products such as a toothpaste paste.

On connaît par le modèle d'utilité allemand G 90 13 168.1 un dispositif de conditionnement et de distribution d'un produit liquide ou pâteux, comprenant un récipient apte à contenir ledit produit, ce récipient présentant un orifice de sortie de produit, équipé d'une pompe comprenant une valve apte à permettre le départ de produit sans rentrée d'air, le récipient comprenant en outre une paroi de fond constituée par une poche délimitant à l'intérieur du récipient un espace contenant ledit produit, ladite poche étant capable de se déplacer dans le récipient en réponse à un départ de produit pour diminuer le volume dudit espace et maintenir le produit à l'abri de l'air dans le récipient. La poche est fixée à une extrémité à sa périphérie au récipient et elle est apte à se déformer pour diminuer le volume dudit espace jusqu'à épouser sensiblement la forme de l'intérieur du récipient. La poche est pliée sur elle-même lorsque le récipient est plein de produit et elle se déplie progressivement au fur et à mesure du départ du produit. La poche est emprisonnée à l'intérieur du récipient par une paroi rigide percée d'un orifice permettant une rentrée d'air dans le récipient, du côté de la face de la poche qui est opposé au produit. Le dispositif décrit dans ce modèle d'utilité allemand s'utilise avec la pompe en bas et ne convient pas à une utilisation avec la pompe en haut car il existe dans ce cas un risque que le produit soit retenu dans une cavité formée par les plis de la poche et ne puisse être distribué par la pompe. En outre, la poche serait susceptible de couvrir l'orifice de rentrée d'air dans le récipient et d'entraver le fonctionnement correct du dispositif.The German utility model G 90 13 168.1 discloses a device for packaging and dispensing a liquid or pasty product, comprising a container capable of containing said product, this container having a product outlet orifice, equipped with a pump comprising a valve able to allow the product to leave without entering the air, the container further comprising a bottom wall constituted by a pocket delimiting inside the container a space containing said product, said pocket being capable of move in the container in response to a product departure to reduce the volume of said space and keep the product away from the air in the container. The pocket is fixed at one end at its periphery to the container and it is capable of deforming to reduce the volume of said space until it substantially matches the shape of the interior of the container. The pocket is folded on itself when the container is full of product and it unfolds gradually as the product leaves. The bag is trapped inside the container by a rigid wall pierced with an orifice allowing air to enter the container, on the side of the face of the bag which is opposite to the product. The device described in this German utility model is used with the pump at the bottom and is not suitable for use with the pump at the top because there is a risk in this case that the product is retained in a cavity formed by the folds of the bag and does not can be dispensed by the pump. In addition, the pocket could cover the air intake opening in the container and hinder the correct functioning of the device.

On connaît par la demande de brevet allemand DE 1 586 797 un dispositif de conditionnement et de distribution d'un produit liquide ou pâteux comprenant un récipient à paroi déformable apte à contenir ledit produit, ce récipient présentant un orifice de sortie équipé d'une valve apte à permettre le départ de produit sans rentrée d'air, le récipient comprenant en outre une poche délimitant à l'intérieur du récipient un espace contenant ledit produit, ladite poche étant capable de se déplacer dans le récipient en réponse à un départ de produit pour diminuer le volume dudit espace et maintenir le produit stocké à l'abri de l'air dans le récipient, cette poche étant fixée à une extrémité à sa périphérie au récipient et étant apte à se dilater pour diminuer le volume dudit espace. Au fur et à mesure que le récipient se vide de produit, la poche se remplit d'air au travers d'un orifice du récipient, équipé d'une valve destinée à éviter la sortie d'air de la poche lorsque l'on appuie sur les parois du récipient pour provoquer l'expulsion du produit. La poche étant élastiquement déformable, celle-ci renferme de l'air qui est à l'état comprimé. Lorsque la poche occupe la plus grande majorité du récipient, une pression exercée sur les parois du récipient tend à comprimer l'air contenu dans la poche en provoquant une faible expansion seulement de cette dernière et il devient difficile de distribuer du produit. Ainsi, il n'est pas aisé avec ce dispositif d'utiliser tout le produit contenu à l'intérieur du récipient.German patent application DE 1,586,797 discloses a device for packaging and dispensing a liquid or pasty product comprising a container with a deformable wall capable of containing said product, this container having an outlet orifice equipped with a valve able to allow the product to leave without entering the air, the container further comprising a pocket delimiting inside the container a space containing said product, said pocket being able to move in the container in response to a product leaving to reduce the volume of said space and keep the stored product away from air in the container, this pocket being fixed at one end at its periphery to the container and being able to expand to reduce the volume of said space. As the container empties of product, the pocket fills with air through an opening in the container, fitted with a valve intended to prevent the air from escaping from the pocket when pressed on the walls of the container to cause the expulsion of the product. The pocket being elastically deformable, it contains air which is in the compressed state. When the bag occupies the majority of the container, a pressure exerted on the walls of the container tends to compress the air contained in the bag, causing only a slight expansion of the latter and it becomes difficult to dispense product. Thus, it is not easy with this device to use all the product contained inside the container.

La présente invention a pour objet de proposer un nouveau dispositif de conditionnement et de distribution d'un produit liquide ou pâteux, du type comprenant un récipient apte à contenir ledit produit, ce récipient présentant un orifice de sortie de produit équipé d'une pompe comprenant une valve apte à permettre le départ de produit sans rentrée d'air, le récipient comprenant en outre une paroi de fond constituée par une poche délimitant à l'intérieur du récipient un espace contenant ledit produit, ladite poche étant capable de se déplacer dans le récipient en réponse à un départ de produit pour diminuer le volume dudit espace et maintenir le produit stocké à l'abri de l'air dans le récipient, ladite poche étant fixée à une extrémité à sa périphérie au récipient et étant apte à se déformer pour diminuer le volume dudit espace jusqu'à épouser sensiblement la forme de l'intérieur du récipient, qui puisse être utilisé avec la pompe en haut ou la pompe en bas et qui permette de distribuer la quasi-totalité du produit contenu à l'intérieur du récipient.The object of the present invention is to propose a new device for packaging and dispensing a liquid or pasty product, of the type comprising a container capable of containing said product, this container having a product outlet orifice equipped with a pump comprising a valve capable of allowing the product to leave without air entering, the container further comprising a bottom wall constituted by a pocket delimiting inside the container a space containing said product, said bag being able to move in the container in response to a product departure to reduce the volume of said space and keep the product stored away from air in the container, said bag being fixed at one end at its periphery to the container and being able to deform to reduce the volume of said space until it conforms substantially to the shape of the interior of the container, which can be used with the pump at the top or the pump at the bottom and which allows to distribute almost all of the product contained inside the container.

Elle y parvient par le fait que la poche est réalisée dans un matériau élastiquement déformable.It achieves this by the fact that the pocket is made of an elastically deformable material.

Lorsque du produit quitte le récipient, la dépression créée dans ledit espace par le départ du produit provoque la déformation de la poche dans le sens tendant à diminuer le volume dudit espace, jusqu'à l'annulation de ladite dépression.When the product leaves the container, the depression created in said space by the departure of the product causes the deformation of the pocket in the direction tending to decrease the volume of said space, until the cancellation of said depression.

La poche occupe avantageusement, grâce à son élasticité, dans son état de dilatation maximum la quasi-totalité du volume initialement occupé par le produit, et ce quelle que soit la forme du récipient. L'invention autorise ainsi une grande diversité de formes pour le récipient, alors que les dispositifs de l'art antérieur à piston mobile devaient nécessairement présenter un corps cylindrique.The pocket advantageously occupies, thanks to its elasticity, in its state of maximum expansion almost all of the volume initially occupied by the product, regardless of the shape of the container. The invention thus allows a wide variety of shapes for the container, while the devices of the prior art with movable piston necessarily had to have a cylindrical body.

Dans une réalisation préférée de l'invention, la pompe est située en partie supérieure du récipient lors de l'utilisation.In a preferred embodiment of the invention, the pump is located in the upper part of the container during use.

Dans une réalisation particulière de l'invention, la poche est apte à se déployer dans une premier temps sans que sa paroi ne se tende puis dans un deuxième temps à se dilater élastiquement.In a particular embodiment of the invention, the pocket is capable of deploying at first without its wall tensing and then, at a second stage, of expanding elastically.

Ainsi, ladite poche peut se déployer dans un premier temps sans que sa paroi ne se tende pour occuper plus de la moitié de l'espace initialement occupé par le produit, puis dans un deuxième temps, la poche peut à se dilater élastiquement pour occuper l'espace restant libéré par le produit.Thus, said pocket can be deployed initially without its wall stretching to occupy more than half of the space initially occupied by the product, then in a second step, the pocket can expand elastically to occupy the remaining space freed up by the product.

Du fait que la poche est apte à se dilater élastiquement à partir d'un certain degré de vidage du récipient, elle présente moins de plis lorsque le récipient est plein que les poches des dispositifs connus qui ne sont pas réalisés dans un matériau élastique ; ainsi les risques liés à l'obturation de l'orifice d'entrée d'air sont diminués.Because the pocket is capable of expanding elastically from a certain degree of emptying of the container, it has fewer folds when the container is full than the pockets of known devices which are not made of an elastic material; so the risks associated with blocking the air intake opening are reduced.

Avantageusement, la poche est munie intérieurement d'une doublure en un matériau non élastiquement déformable mais très imperméable aux gaz, ladite doublure étant apte à se déployer pour accompagner la déformation de la poche jusqu'à ce que la paroi de cette dernière se tende.Advantageously, the pocket is internally provided with a lining made of a material which is not elastically deformable but very impermeable to gases, said lining being able to deploy to accompany the deformation of the pocket until the wall of the latter is stretched.

Dans une autre réalisation particulière de l'invention, la poche est sensiblement tendue lorsque le récipient est plein.In another particular embodiment of the invention, the pocket is substantially stretched when the container is full.

Ainsi, la poche peut se présenter sous la forme d'une membrane élastique sensiblement plane lorsque le récipient est plein. Ce dernier peut être sensiblement plat et conformé de sorte que lorsqu'il est vide, la poche s'est déplacée sur une hauteur relativement faible, par exemple comprise entre 15 et 20 mm.Thus, the pocket can be in the form of a substantially planar elastic membrane when the container is full. The latter can be substantially flat and shaped so that when empty, the bag has moved over a relatively small height, for example between 15 and 20 mm.

Dans une réalisation particulière de l'invention, le dispositif comporte des moyens d'obturation aptes à isoler l'intérieur de la poche de l'air ambiant, au moins avant la première utilisation du dispositif. Ces moyens d'obturation constituent avec la poche une double barrière d'étanchéité favorable à une conservation de longue durée du produit contenu dans le récipient. En outre, ces moyens d'obturation, lorsqu'ils sont en place sur le récipient, empêchent la poche de se gonfler par entrée d'air et gênent le fonctionnement de la pompe utilisée pour prélever le produit. Les moyens d'obturation peuvent ainsi avantageusement servir de témoin d'inviolabilité, dans la mesure où leur présence, intacts, sur le dispositif indique à l'utilisateur que celui-ci n'a pas pu être utilisé précédemment de façon normale.In a particular embodiment of the invention, the device comprises sealing means capable of isolating the interior of the pocket from the ambient air, at least before the first use of the device. These sealing means constitute with the pocket a double sealing barrier favorable to a long-term conservation of the product contained in the container. In addition, these sealing means, when in place on the container, prevent the bag from inflating by air intake and hinder the operation of the pump used to withdraw the product. The closure means can thus advantageously serve as a tamper-evident witness, insofar as their presence, intact, on the device indicates to the user that it has not been possible to use it previously in a normal manner.

D'autres caractéristiques et avantages de la présente invention apparaîtront à la lecture de la description détaillée qui va suivre, d'exemples de réalisation non limitatifs de l'invention, et à l'examen du dessin annexé sur lequel :

  • la figure 1 représente un dispositif de conditionnement et de distribution conforme à un premier exemple de réalisation de l'invention, avant première utilisation,
  • la figure 2 montre le dispositif représenté sur la figure 1 en cours d'utilisation,
  • la figure 3 représente un deuxième exemple de réalisation d'un dispositif conforme à l'invention, avant première utilisation,
  • la figure 4 montre le dispositif représenté sur la figure 3 en fin d'utilisation,
  • la figure 5 représente un troisième exemple de réalisation d'un dispositif conforme à l'invention, avant première utilisation,
  • la figure 6 représente un quatrième exemple de réalisation d'un dispositif selon l'invention, avant première utilisation, et
  • la figure 7 représente un cinquième exemple de réalisation de l'invention.
Other characteristics and advantages of the present invention will appear on reading the detailed description which follows, of nonlimiting exemplary embodiments of the invention, and on examining the appended drawing in which:
  • FIG. 1 represents a packaging and distribution device in accordance with a first embodiment of the invention, before first use,
  • FIG. 2 shows the device represented in FIG. 1 during use,
  • FIG. 3 represents a second embodiment of a device according to the invention, before first use,
  • FIG. 4 shows the device shown in FIG. 3 at the end of use,
  • FIG. 5 represents a third embodiment of a device according to the invention, before first use,
  • FIG. 6 represents a fourth embodiment of a device according to the invention, before first use, and
  • FIG. 7 represents a fifth embodiment of the invention.

On a représenté sur les figures 1 et 2 un dispositif 1 de conditionnement et de distribution d'un produit cosmétique P liquide ou pâteux, conforme à l'invention. Bien entendu, on ne sort pas du cadre de l'invention en utilisant le dispositif pour conditionner et distribuer un produit non cosmétique.FIGS. 1 and 2 show a device 1 for packaging and dispensing a liquid or pasty cosmetic product P, in accordance with the invention. Of course, it is not going beyond the ambit of the invention to use the device for packaging and dispensing a non-cosmetic product.

Ce dispositif 1 comprend un récipient 2 à paroi rigide, généralement symétrique de révolution dans l'exemple décrit, formé par l'assemblage par encliquetage d'un corps 3 sur une embase 4. Cette dernière comporte une jupe tubulaire supérieure 5 munie à son extrémité libre d'un rebord 6 formant radialement saillie vers l'intérieur. Le corps 3 est muni d'une paroi tubulaire inférieure 7, de diamètre extérieur adapté à s'engager dans la paroi tubulaire 5. La paroi tubulaire 7 se raccorde sur le reste du corps 3 par un rétrécissement de section 8 définissant une gorge annulaire externe dans laquelle s'engage le rebord 6 au terme de la fixation par claquage du corps 3 sur l'embase 4. Cette dernière comporte une jupe tubulaire inférieure 9, filetée extérieurement, pour son vissage sur un socle connu en lui-même et non représenté. Une paroi 10, plane et perpendiculaire à l'axe de symétrie du récipient 2, s'étend radialement vers l'intérieur à la jonction des jupes tubulaires supérieure 5 et inférieure 9. Cette paroi 10 est traversée dans une région annulaire centrale par des ajours 11. Un pied de fixation central 12, solidaire de la paroi 10, s'étend selon l'axe de symétrie du récipient 2 à l'intérieur de la partie tubulaire filetée 9. Le pied de fixation 12 sert au montage de moyens d'obturation amovibles 14 comme cela sera précisé dans la suite.This device 1 comprises a container 2 with a rigid wall, generally symmetrical in revolution in the example described, formed by the snap-fit assembly of a body 3 on a base 4. The latter comprises an upper tubular skirt 5 provided at its end free of a rim 6 radially projecting inwards. The body 3 is provided with a lower tubular wall 7, of outside diameter adapted to engage in the tubular wall 5. The tubular wall 7 is connected to the rest of the body 3 by a narrowing of section 8 defining an external annular groove in which the rim 6 engages at the end of the snap fastening of the body 3 on the base 4. The latter comprises a lower tubular skirt 9, externally threaded, for its screwing on a base known in itself and not shown . A wall 10, flat and perpendicular to the axis of symmetry of the container 2, extends radially inwards at the junction of the upper 5 and lower 9 tubular skirts. This wall 10 is crossed in a central annular region by openings 11. A central fixing foot 12, integral with the wall 10, extends along the axis of symmetry of the container 2 inside the threaded tubular part 9. The fixing foot 12 is used for mounting means of removable shutter 14 as will be explained below.

Le corps 3 est fermé à sa partie supérieure par une paroi 15 présentant un col 16 s'étendant vers le haut, muni à son extrémité supérieure d'un rebord annulaire 17 formant radialement saillie vers l'extérieur. Une pompe 18 connue en elle-même et non décrite est fixée au col 16. Cette pompe 18 comporte un poussoir 19 de distribution de produit, et elle est munie inférieurement d'une coiffe 20 conformée pour se claquer sur le rebord annulaire 17 du col 16. La pompe 18 comporte une tubulure 21 pour prélever le produit P dans le récipient 2. Cette tubulure 21 est engagée dans l'ouverture du col 16 et s'étend par son extrémité inférieure sous la paroi 15 dans un espace intérieur 23 du récipient 2 contenant le produit P. Des ajours latéraux 24, dont le rôle sera précisé dans la suite, sont ménagés à l'extrémité inférieure 22 de la tubulure 21.The body 3 is closed at its upper part by a wall 15 having a neck 16 extending upwards, provided at its upper end with an annular flange 17 radially projecting outwards. A pump 18 known in itself and not described is fixed to the neck 16. This pump 18 comprises a pusher 19 for dispensing product, and it is provided below with a cap 20 shaped to snap onto the annular rim 17 of the neck 16. The pump 18 comprises a tube 21 for taking the product P from the container 2. This tube 21 is engaged in the opening of the neck 16 and extends by its lower end under the wall 15 in an interior space 23 of the container 2 containing the product P. Lateral openings 24, the role of which will be explained below, are arranged at the lower end 22 of the tube 21.

Un couvercle 25 couvre le col 16 du corps 3. Ce couvercle 25 s'emboîte sur le corps 3 comme représenté sur les figures 1 et 2 jusqu'à buter par sa tranche inférieure contre un épaulement 26 formé sur la surface externe du corps 3, et il est muni supérieurement en son centre d'un passage pour le poussoir 19.A cover 25 covers the neck 16 of the body 3. This cover 25 fits onto the body 3 as shown in FIGS. 1 and 2 until it abuts by its lower edge against a shoulder 26 formed on the external surface of the body 3, and it is provided above in its center with a passage for the pusher 19.

Le dispositif 1 comporte une poche 28, ayant une certaine élasticité et se présentant dans l'exemple décrit sous la forme d'un soufflet à l'état replié délimitant à l'intérieur du récipient 2 deux espaces dont l'un est constitué par l'espace intérieur 23 précité, contient le produit P, et l'autre, intérieur au soufflet, porte la référence 29. La poche 28 constitue une barrière étanche déformable séparant les espaces 23 et 29. L'espace intérieur 29 communique par les ajours 11 avec l'extérieur lorsque les moyens d'obturation 14 sont retirés, comme représenté sur la figure 2.The device 1 comprises a pocket 28, having a certain elasticity and appearing in the example described in the form of a bellows in the folded state delimiting inside the container 2 two spaces, one of which is constituted by the interior space 23 above, contains the product P, and the other, inside the bellows, bears the reference 29. The pocket 28 constitutes a deformable waterproof barrier separating the spaces 23 and 29. The interior space 29 communicates through the openings 11 with the outside when the shutter means 14 are removed, as shown in FIG. 2.

La poche 28 est fixée à son extrémité inférieure à sa périphérie au récipient 2, de sorte que l'intérieur du soufflet communique par l'intermédiaire des ajours 11 avec l'air ambiant. Plus précisément, la paroi 28 est pincée à son extrémité inférieure à sa périphérie entre les jupes tubulaires 5 de l'embase 4 et 7 du corps 3. De préférence, comme représenté, l'embase 4 comporte une lèvre annulaire 30 coaxiale à la jupe tubulaire 5 et définissant avec cette dernière une gorge annulaire 31 dans laquelle s'engage l'extrémité inférieure de la jupe tubulaire 7 du corps 3. La lèvre annulaire 30 améliore la tenue et l'étanchéité de la fixation de la poche 28 sur le récipient 3 en venant pincer cette dernière contre la surface radialement interne de la jupe tubulaire 7. La paroi de la poche 28 pincée entre le corps 3 et l'embase 4 constitue un joint d'étanchéité assurant un montage hermétique du corps 3 sur l'embase 4. Bien entendu, on ne sort pas du cadre de la présente invention en fixant la poche 28 à son extrémité inférieure à sa périphérie au corps 3 seul ou à l'embase 4 seule, par soudage par exemple.The pocket 28 is fixed at its lower end at its periphery to the container 2, so that the interior of the bellows communicates via the openings 11 with the ambient air. More specifically, the wall 28 is pinched at its lower end at its periphery between the tubular skirts 5 of the base 4 and 7 of the body 3. Preferably, as shown, the base 4 has an annular lip 30 coaxial with the skirt tubular 5 and defining with the latter an annular groove 31 in which engages the lower end of the tubular skirt 7 of the body 3. The annular lip 30 improves the strength and tightness of the fixing of the pocket 28 on the container 3 by pinching the latter against the radially internal surface of the tubular skirt 7. The wall of the pocket 28 pinched between the body 3 and the base 4 constitutes a seal ensuring a hermetic mounting of the body 3 on the 'base 4. Of course, it is not beyond the scope of the present invention by fixing the pocket 28 at its lower end at its periphery to the body 3 alone or to the base 4 alone, for example by welding.

Les moyens d'obturation 14 précités se présentent dans l'exemple décrit sous la forme d'un capuchon ou ventouse comportant un logement central retenu par friction sur le pied de fixation 12. La paroi délimitant radialement ce logement se prolonge vers le haut par une lèvre d'étanchéité 32 s'étendant obliquement radialement vers l'extérieur et venant s'appliquer par son extrémité libre sur la paroi 10 autour des ajours 11 lorsque le capuchon 14 est en place. Ce dernier est avantageusement muni à son extrémité inférieure, comme représenté, d'une languette 33 facilitant son enlèvement.The abovementioned closure means 14 appear in the example described in the form of a cap or suction cup comprising a central housing retained by friction on the fixing foot 12. The wall delimiting this housing radially is extended upwards by a sealing lip 32 extending obliquely radially outward and coming to be applied by its free end to the wall 10 around the openings 11 when the cap 14 is in place. The latter is advantageously provided at its lower end, as shown, with a tongue 33 facilitating its removal.

Avantageusement, le vide est réalisé dans l'espace intérieur 29 avant la mise en place du capuchon 14 en aspirant l'air au travers des ajours 11 à l'aide d'un dispositif approprié, pour provoquer le repliement sur elle-même de la poche 28, comme représenté sur la figure 1. La poche 28 occupe alors un volume réduit dans le récipient 2.Advantageously, a vacuum is created in the interior space 29 before the cap 14 is put in place by sucking the air through the openings 11 with the aid of an appropriate device, to cause the pocket 28, as shown in FIG. 1. The pocket 28 then occupies a reduced volume in the container 2.

Dans l'exemple décrit, la poche 28 est repliée sur elle-même par aspiration au travers des ajours 11 alors que la pompe 18 et le couvercle 25 ne sont pas encore en place sur le récipient 2. Une fois la poche 28 repliée, le récipient 2 est rempli de produit sous vide par le col 16 puis la pompe 18 est claquée sur ce dernier et le couvercle 25 est rapporté. En variante, la poche 28 est solidaire de l'embase 4 seule. Le récipient 2 est rempli avant que l'embase 4 ne soit rapportée sur ce dernier avec la poche 28 à l'état replié. Le remplissage s'effectue alors par le fond, avec la pompe 18 déjà en place sur le corps 3. Après remplissage, l'embase 4 munie de la poche 28 maintenue à l'état replié par le capuchon 14 est claquée sur le corps 3.In the example described, the pocket 28 is folded back on itself by suction through the openings 11 while the pump 18 and the cover 25 are not yet in place on the container 2. Once the pocket 28 is folded, the container 2 is filled with product under vacuum through the neck 16 then the pump 18 is slammed on the latter and the cover 25 is attached. Alternatively, the pocket 28 is secured to the base 4 alone. The container 2 is filled before the base 4 is attached to the latter with the pocket 28 in the folded state. The filling is then carried out from the bottom, with the pump 18 already in place on the body 3. After filling, the base 4 provided with the pocket 28 kept in the folded state by the cap 14 is slammed on the body 3 .

La pompe 18 comporte une valve agencée de façon connue en soi pour permettre de prélever sans rentrée d'air du produit P par la tubulure 21 dans le récipient. Si l'utilisateur tente de prélever du produit P en pressant le poussoir 19 alors que le capuchon 14 est toujours en place, la pompe ne peut fonctionner correctement pour distribuer du produit. Par contre, lorsque le capuchon 14 est retiré, la poche 28 peut se gonfler dans le récipient 2 pour diminuer le volume de l'espace intérieur 23, de sorte qu'il ne peut apparaître dans ce dernier une dépression s'opposant à un départ de produit. Au cours de l'utilisation, la poche 28 se déploie vers le haut selon l'axe de symétrie du récipient 2 comme représenté sur la figure 2. La poche 28 peut se gonfler grâce à l'entrée d'air à l'intérieur de celle-ci au travers des ajours 11 pour occuper tout le volume dans le récipient 2 qui est libéré par le produit P.The pump 18 includes a valve arranged in a manner known per se to allow the product P to be withdrawn without re-entry of air by the tube 21 into the container. If the user attempts to collect product P by pressing the pusher 19 while the cap 14 is still in place, the pump cannot function correctly to dispense product. By cons, when the cap 14 is removed, the pocket 28 can inflate in the container 2 to reduce the volume of the interior space 23, so that there can not appear in the latter a depression opposing a departure of product. During use, the bag 28 deploys upwards along the axis of symmetry of the container 2 as shown in FIG. 2. The bag 28 can inflate thanks to the air inlet inside this through the openings 11 to occupy all the volume in the container 2 which is released by the product P.

La poche 28 est réalisée dans un matériau élastiquement déformable tel que du caoutchouc ou un élastomère thermoplastique. On peut utiliser une technique de moulage par soufflage, de moulage par injection ou de moulage par trempage notamment. La poche 28 peut également être constituée par un assemblage d'au moins deux couches de matières plastiques différentes. La poche 28 peut encore présenter une épaisseur variable permettant de favoriser la dilatation de zones choisies de la poche.The pocket 28 is made of an elastically deformable material such as rubber or a thermoplastic elastomer. One can use a blow molding technique, injection molding or dip molding in particular. The pocket 28 can also be constituted by an assembly of at least two layers of different plastic materials. The pocket 28 may also have a variable thickness making it possible to promote the expansion of selected areas of the pocket.

Dans l'exemple décrit, la poche 28 peut se déployer pour occuper jusqu'à 80% environ du volume initialement occupé par le produit P avant que sa paroi ne soit tendue. C'est ensuite grâce à son élasticité que la paroi de la poche peut se tendre davantage pour épouser la forme de l'intérieur du récipient et occuper les 20% du volume initial restant.In the example described, the pocket 28 can be deployed to occupy up to approximately 80% of the volume initially occupied by the product P before its wall is stretched. It is then thanks to its elasticity that the wall of the pocket can be more tight to match the shape of the interior of the container and occupy the 20% of the initial volume remaining.

Compte tenu de sa fixation au récipient à sa périphérie à son extrémité inférieure, la poche 28, lorsqu'elle se déforme élastiquement, se plaque tout d'abord contre la paroi du récipient 2 adjacente à l'embase 4. La poche 28 assure ensuite en se plaquant progressivement sur la paroi du récipient du bas vers le haut la remontée de la totalité du produit P en direction de la tubulure de prélèvement 21.Given its attachment to the container at its periphery at its lower end, the pocket 28, when it elastically deforms, is first pressed against the wall of the container 2 adjacent to the base 4. The pocket 28 then ensures by progressively pressing against the wall of the container from the bottom upwards the rise of all of the product P in the direction of the sampling tube 21.

Les ajours latéraux 24 précités, ménagés en partie inférieure de la tubulure 21 de la pompe 18, permettent l'entrée latérale de produit P dans la tubulure 21 et un fonctionnement du dispositif même si la poche 28 s'applique contre la tranche d'extrémité inférieure de la tubulure 21.The aforementioned lateral openings 24, formed in the lower part of the tubing 21 of the pump 18, allow the lateral entry of product P into the tubing 21 and operation of the device even if the pocket 28 is applied against the end edge lower part of tubing 21.

Dans une variante de réalisation non représentée, la poche 28 est munie intérieurement d'une doublure en un matériau non élastiquement déformable mais très imperméable aux gaz tel que du polyéthylène. L'intérieur de la doublure communique avec l'air ambiant par les ajours 11 et la doublure peut se gonfler pour occuper au maximum 80% environ du volume initialement occupé par le produit. Une fois la paroi de la doublure tendue, la poche se déforme grâce à son élasticité propre pour occuper les 20% du volume initial restant, avec apparition d'une dépression dans l'intervalle entre la poche et sa doublure.In an alternative embodiment not shown, the pocket 28 is provided internally with a lining made of a material which is not elastically deformable but very impermeable to gases such as polyethylene. The interior of the lining communicates with the ambient air through the openings 11 and the lining can inflate to occupy a maximum of approximately 80% of the volume initially occupied by the product. Once the lining wall is stretched, the pocket deforms thanks to its own elasticity to occupy the 20% of the initial volume remaining, with the appearance of a depression in the interval between the pocket and its lining.

On a représenté sur les figures 3 et 4 un dispositif 40 conforme à un deuxième exemple de réalisation de l'invention.There is shown in Figures 3 and 4 a device 40 according to a second embodiment of the invention.

Dans la description qui suit, on emploiera des signes de références identiques pour certains éléments fonctionnellement analogues à ceux qui viennent d'être précédemment décrits, et dont la description ne sera pas reprise.In the following description, identical reference signs will be used for certain elements functionally analogous to those which have just been described above, and the description of which will not be repeated.

Le dispositif 40 diffère du précédent principalement par le fait qu'une valve 41 est disposée dans le passage d'air faisant communiquer l'espace intérieur 29 et l'extérieur. Cette valve 41 est conformée pour permettre une rentrée d'air dans l'espace intérieur 29 et interdire une sortie d'air vers l'extérieur. La valve 41 ne s'ouvre que lors de la rentrée d'air dans la poche 28 lorsque cette dernière se dilate et constitue avec celle-ci lorsqu'elle est au repos à l'état fermé une double barrière d'étanchéité, favorable à une conservation de longue durée du produit contenu dans le récipient. La poche 28 peut, comme dans la réalisation précédente, se gonfler jusqu'à ce que sa paroi se tende puis se déformer élastiquement pour occuper, comme représenté sur la figure 4, la quasi totalité du volume initialement occupé par le produit P à distribuer. La valve 41 comporte une membrane 42 appliquée à sa périphérie sur l'embase 4 et apte à se déformer élastiquement pour libérer un orifice 43 de passage d'air vers l'espace intérieur 29. La membrane 42 est appliquée sur l'embase 4 au moyen d'une pièce de retenue 44 formant robinet, claquée sur l'embase 4 avec une possibilité de rotation autour de l'axe de symétrie du récipient 2. La membrane 42 présente à sa périphérie un rebord annulaire 45 engagé dans une gorge annulaire 46 de la pièce de retenue 44. L'embase 4 est munie sur sa face inférieure d'un bossage annulaire 47 venant pincer la membrane 42 à la base du rebord 45 pour assurer un maintien étanche de la membrane 42 à sa périphérie. La membrane 42 présente une partie 47 de forme hémisphérique dont la concavité est tournée vers le haut, prolongée inférieurement par un doigt d'obturation 48 apte à s'appliquer sur les bords de l'orifice 43 précité, ménagé sur la pièce de retenue 44. La membrane 42 est conformée de manière à ce que la partie hémisphérique 47 soit légèrement pré-contrainte au repos et plaque élastiquement le doigt d'obturation 48 contre les bords de l'orifice 43 pour l'obturer. La valve est ainsi, en l'absence d'utilisation du dispositif 40, dans une position d'obturation du passage faisant communiquer l'espace intérieur 29 avec l'extérieur.The device 40 differs from the previous one mainly in that a valve 41 is arranged in the air passage making the interior space 29 communicate with the exterior. This valve 41 is shaped to allow an entry of air into the interior space 29 and prevent an exit of air to the outside. The valve 41 only opens when the air enters the pocket 28 when the latter expands and constitutes with the latter when it is at rest in the closed state a double sealing barrier, favorable to long-term storage of the product contained in the container. The pocket 28 can, as in the previous embodiment, inflate until its wall tightens then deform elastically to occupy, as shown in FIG. 4, almost the entire volume initially occupied by the product P to be dispensed. The valve 41 comprises a membrane 42 applied at its periphery to the base 4 and able to deform elastically to release an orifice 43 for the passage of air towards the interior space 29. The membrane 42 is applied to the base 4 at by means of a retaining part 44 forming a tap, slammed on the base 4 with a possibility of rotation around the axis of symmetry of the container 2. The membrane 42 has at its periphery an annular rim 45 engaged in an annular groove 46 of the retaining piece 44. The base 4 is provided on its underside with an annular boss 47 pinching the membrane 42 at the base of the rim 45 to ensure a tight hold of the membrane 42 at its periphery. The membrane 42 has a part 47 of hemispherical shape, the concavity of which faces upwards, extended below by a closing finger 48 capable of being applied to the edges of the aforementioned orifice 43, formed on the retaining piece 44 The membrane 42 is shaped so that the hemispherical part 47 is slightly pre-stressed at rest and elastically presses the shutter finger 48 against the edges of the orifice 43 to close it. The valve is thus, in the absence of use of the device 40, in a position for closing the passage making the interior space 29 communicate with the exterior.

L'embase 4 et la pièce de retenue 44 constituent un robinet fermant, dans une position angulaire déterminée de la pièce de retenue 44, le passage faisant communiquer l'orifice 43 et l'espace intérieur 29. La pièce de retenue 44 comporte une partie formant boisseau 49a engagée dans un prolongement tubulaire inférieur 49b de l'embase 4.The base 4 and the retaining piece 44 constitute a valve closing, in a determined angular position of the retaining piece 44, the passage communicating the orifice 43 and the interior space 29. The retaining piece 44 comprises a part forming a plug 49a engaged in a lower tubular extension 49b of the base 4.

Pour le stockage, la pièce de retenue 44 est tournée de manière à fermer le passage d'air entre le boisseau 49a et la partie tubulaire 49b. L'intérieur 29 de la poche 28 est ainsi isolé de l'extérieur pour une bonne conservation du produit. Une pellicule déchirable peut être fixée extérieurement sur deux surfaces adjacentes de l'embase 4 et de la pièce de retenue 44 pour servir de témoin d'inviolabilité. Lorsque ladite pellicule est intacte, l'utilisateur sait que l'intérieur de la poche 28 est resté isolé de l'extérieur et que le fonctionnement normal de la pompe 18 n'a pas été possible.For storage, the retaining piece 44 is turned so as to close the air passage between the plug 49a and the tubular part 49b. The interior 29 of the pocket 28 is thus isolated from the exterior for good preservation of the product. A tearable film can be fixed externally on two adjacent surfaces of the base 4 and the retaining piece 44 to serve as a tamper-evident indicator. When said film is intact, the user knows that the inside of the pocket 28 has remained isolated from the outside and that the normal operation of the pump 18 has not been possible.

On a représenté sur la figure 5 un dispositif 50 conforme à un troisième exemple de réalisation de l'invention. Ce dispositif comporte un robinet 51 pouvant prendre deux positions angulaires. Dans une première position angulaire, le robinet 51 peut autoriser un passage d'air entre l'espace intérieur 29 et l'extérieur et, dans une seconde position angulaire, le robinet isole l'espace intérieur 29 de l'extérieur. Dans l'exemple décrit, l'embase 4 présente à sa partie inférieure une paroi tubulaire 52 fermée à son extrémité inférieure 53 et traversée radialement par un perçage 54. Le robinet 51 est retenu par claquage en 55 sur le corps 3 du récipient 2 avec une possibilité de rotation autour de l'axe de symétrie de ce dernier. Il présente un logement 56 venant s'engager étroitement sur la paroi tubulaire 52 de l'embase 4. Un perçage traversant 57, s'étendant radialement, débouche à son extrémité radialement la plus interne dans le logement 56 et peut venir, dans ladite deuxième position angulaire du robinet 51, en regard du perçage 54 pour établir un passage d'air avec ce dernier et avec l'espace intérieur 29. Le robinet 51 est muni, comme représenté sur la figure 5, d'une membrane 58 apte à fermer le perçage 57 avant la première utilisation du dispositif. Cette membrane 58 est fixée de façon amovible sur le robinet 51 et présente une partie de préhension 59 permettant à l'utilisateur de l'enlever lors de la première utilisation du dispositif. La poche 28 est repliée sur elle-même en faisant le vide dans l'espace intérieur 29. La membrane 58 joue avantageusement le rôle d'une valve lorsqu'elle est sur le robinet 51 en se déformant pour permettre le passage d'air vers l'extérieur lors de la mise sous vide de l'espace intérieur 29 et en interdisant la rentrée d'air en sens inverse.FIG. 5 shows a device 50 according to a third embodiment of the invention. This device comprises a tap 51 which can take two angular positions. In a first angular position, the valve 51 can allow air to pass between the interior space 29 and the exterior and, in a second angular position, the valve isolates the interior space 29 from the exterior. In the example described, the base 4 has at its lower part a tubular wall 52 closed at its lower end 53 and traversed radially by a bore 54. The tap 51 is retained by snapping at 55 on the body 3 of the container 2 with a possibility of rotation around the axis of symmetry of the latter. It has a housing 56 which engages closely on the tubular wall 52 of the base 4. A through bore 57, extending radially, opens at its radially innermost end into the housing 56 and can come into said second angular position of the valve 51, opposite the bore 54 to establish an air passage with the latter and with the interior space 29. The valve 51 is provided, as shown in FIG. 5, with a membrane 58 capable of closing drilling 57 before the first use of the device. This membrane 58 is removably attached to the tap 51 and has a gripping portion 59 allowing the user to remove it when the device is first used. The pocket 28 is folded back on itself by creating a vacuum in the interior space 29. The membrane 58 advantageously plays the role of a valve when it is on the tap 51 by deforming to allow the passage of air towards the outside during the evacuation of the interior space 29 and by preventing the re-entry of air.

Le fonctionnement du dispositif 50 est le suivant. Pour la première utilisation, l'utilisateur positionne le perçage 57 du robinet 51 en regard du perçage 54 de l'embase 4 et arrache la membrane 58. L'enlèvement de la membrane 58 permet une rentrée d'air dans l'espace intérieur 29. Lorsque le poussoir 19 de la pompe 18 est actionné, du produit P est prélevé dans l'espace intérieur 23 et la poche 28 se déforme pour compenser la diminution de volume causée par le départ du produit P. Après utilisation, pour éviter d'une part le départ de produit P en cas d'actionnement involontaire du poussoir 19 et améliorer d'autre part la conservation du produit P, l'utilisateur peut refermer le perçage 54 en tournant le robinet 51. L'espace intérieur 29 est alors isolé de l'extérieur.The operation of the device 50 is as follows. For the first use, the user positions the bore 57 of the tap 51 opposite the bore 54 of the base 4 and tears off the membrane 58. The removal of the membrane 58 allows air to enter the interior space 29 When the pusher 19 of the pump 18 is actuated, product P is taken from the interior space 23 and the pocket 28 is deformed to compensate for the reduction in volume caused by the departure of the product P. After use, to avoid on the one hand the start of product P in the event of involuntary actuation of the pusher 19 and on the other hand improve the conservation of product P, the user can close the bore 54 by turning the tap 51. The interior space 29 is then isolated from the outside.

On a représenté partiellement sur la figure 6 un troisième exemple de réalisation d'un dispositif 60 conforme à l'invention. Le dispositif 60 comporte un robinet 61 équipé d'une première valve 62 autorisant dans une première position angulaire du robinet 61 une entrée d'air dans l'espace intérieur 29 et interdisant la sortie d'air de ce dernier. La valve 62 utilisée est de tout type connu en lui-même et n'a été représentée que schématiquement. Elle comporte un obturateur 63 apte à se déplacer dans le robinet 61 entre une position d'obturation d'un passage 64 faisant communiquer l'extérieur avec l'espace intérieur 29, et une position autorisant une circulation d'air dans ce passage 64 en direction de l'espace intérieur 29. Le robinet 61 est équipé d'une deuxième valve 65 autorisant dans une deuxième position angulaire du robinet 61 une sortie d'air de l'espace intérieur 29 et interdisant une rentrée d'air dans ce dernier. Dans l'exemple décrit, la valve 65 est constituée par une membrane comportant une partie de fixation 66 solidaire du robinet 61. En position d'obturation, la valve 65 obture un canal 67 qui s'étend radialement dans le robinet 61 et qui débouche à son extrémité radialement la plus interne dans un logement 68 dans lequel est engagée une partie tubulaire 69 de l'embase 4. Un embout 70 est fixé dans la partie tubulaire 69. Cet embout 70 est parcouru par un canal 71 débouchant à son extrémité supérieure dans l'espace intérieur 29 et débouchant à son extrémité inférieure, à la faveur d'un perçage 72 traversant la paroi de la partie tubulaire 69, à l'extérieur de cette dernière. Dans la deuxième position angulaire précitée du robinet 61, représentée sur la figure 6, le canal 67 se situe en regard du perçage 72. L'embout 70 présente une extrémité supérieure crénelée, définissant des ajours latéraux 73 permettant une aspiration d'air dans l'espace intérieur 29 sans risque d'obturation du canal 71 par la poche 28. Le robinet 61 est fixé par claquage en 74 sur l'embase 4.Partially shown in Figure 6 is a third embodiment of a device 60 according to the invention. The device 60 comprises a tap 61 equipped with a first valve 62 allowing, in a first angular position of the tap 61, an air entry into the interior space 29 and preventing the exit air from the latter. The valve 62 used is of any type known in itself and has only been shown diagrammatically. It comprises a shutter 63 able to move in the tap 61 between a position for closing a passage 64 making the outside communicate with the interior space 29, and a position allowing air circulation in this passage 64 in direction of the interior space 29. The valve 61 is equipped with a second valve 65 allowing, in a second angular position of the valve 61, an air outlet from the interior space 29 and preventing an entry of air into the latter. In the example described, the valve 65 is constituted by a membrane comprising a fixing part 66 integral with the valve 61. In the closed position, the valve 65 closes a channel 67 which extends radially in the valve 61 and which opens out at its radially innermost end in a housing 68 in which is engaged a tubular part 69 of the base 4. A nozzle 70 is fixed in the tubular part 69. This nozzle 70 is traversed by a channel 71 opening at its upper end in the interior space 29 and opening at its lower end, by means of a bore 72 passing through the wall of the tubular part 69, outside the latter. In the aforementioned second angular position of the valve 61, shown in FIG. 6, the channel 67 is located opposite the bore 72. The end piece 70 has a crenellated upper end, defining lateral openings 73 allowing air to be drawn into the interior space 29 without risk of the channel 71 being blocked by the pocket 28. The tap 61 is fixed by snap-fitting at 74 on the base 4.

Pour replier la poche 28 sur elle-même, le robinet 61 est positionné dans ladite deuxième position angulaire précitée et le vide est réalisé dans l'espace intérieur 29 par aspiration au travers des canaux 67 et 71. Lors de l'aspiration, la valve 65 s'ouvre et permet la sortie d'air. Une fois le vide dans l'espace intérieur 29 réalisé, la valve 65 se ferme et interdit l'entrée d'air dans cet espace. Pour le stockage, après remplissage du récipient, le robinet peut être tourné dans une position intermédiaire entre les deux positions angulaires précitées, dans laquelle le perçage 72 est obturé par la paroi du logement 68 du robinet 61. Pour la première utilisation, le robinet 61 est entraîné en rotation pour positionner le passage 64 en regard du perçage 72. La valve 62 peut s'ouvrir pour permettre une rentrée d'air dans l'espace intérieur 29. Le robinet 61 est maintenu dans cette position angulaire pendant l'utilisation du dispositif. Il peut être tourné à nouveau pour isoler l'espace intérieur 29, lors du transport par exemple ou en vue d'un stockage prolongé sans utilisation.To fold the pocket 28 on itself, the tap 61 is positioned in said aforementioned second angular position and the vacuum is created in the interior space 29 by suction through channels 67 and 71. During suction, the valve 65 opens and allows the air outlet. Once the vacuum in the interior space 29 has been achieved, the valve 65 closes and prevents the entry of air into this space. For storage, after filling the container, the valve can be turned to an intermediate position between the two aforementioned angular positions, in which the bore 72 is closed by the wall of the housing 68 of the valve 61. For the first use, the valve 61 is rotated to position the passage 64 opposite the bore 72. The valve 62 can open to allow air to enter the interior space 29. The valve 61 is maintained in this angular position during the use of the device. It can be turned again to isolate the interior space 29, during transport for example or for prolonged storage without use.

Bien entendu, on peut apporter de nombreuses modifications aux dispositifs qui viennent d'être décrits sans sortir du cadre de la présente invention. On peut notamment monter de façon amovible la pompe sur le récipient de manière à permettre l'utilisation de recharges de produit.Of course, many modifications can be made to the devices which have just been described without departing from the scope of the present invention. One can in particular removably mount the pump on the container so as to allow the use of product refills.

La poche peut se présenter, comme illustré par la figure 7, sous la forme d'une membrane élastique 80 fixée à sa périphérie à la paroi du récipient, initialement plate ou légèrement concave ou convexe vers le produit, et apte à se déformer élastiquement sur une hauteur de 15 à 20 mm par exemple pour épouser la forme de l'intérieur du récipient en réponse au départ de produit.The pocket can be, as illustrated in FIG. 7, in the form of an elastic membrane 80 fixed at its periphery to the wall of the container, initially flat or slightly concave or convex towards the product, and able to deform elastically on a height of 15 to 20 mm for example to match the shape of the interior of the container in response to the product departure.

On peut ainsi grâce à l'invention conditionner le produit dans un récipient 81 relativement plat, à parois rigides et équipé à sa partie supérieure d'une pompe 18 munie d'un poussoir 19.Thanks to the invention, it is thus possible to package the product in a relatively flat container 81, with rigid walls and equipped at its upper part with a pump 18 provided with a pusher 19.

On a représenté sur la figure 7 par des pointillés la poche dans la position qu'elle occupe lorsque le récipient est vide et dans une position intermédiaire.The pocket is shown in FIG. 7 by the dotted line in the position it occupies when the container is empty and in an intermediate position.

La poche est quasi-tendue lorsque le récipient est plein et il n'est pas nécessaire de fermer le récipient à sa partie inférieure par une paroi rigide destinée à retenir la poche à l'intérieur du récipient.The pocket is almost stretched when the container is full and it is not necessary to close the container at its lower part by a rigid wall intended to retain the pocket inside the container.

Toutefois, on a représenté sur la figure 7 une paroi 82 fermant le récipient à son extrémité inférieure, percée d'un orifice 83 obturé avant utilisation par une pellicule pelable 84. La paroi 82 et la pellicule pelable 84 permettent d'isoler de l'air ambiant la poche 80 avant utilisation, pour une meilleure conservation du produit. Pour l'utilisation, on retire la pellicule pelable 84. En variante, la pellicule pelable pourrait être remplacée par un picot autosécable.However, there is shown in Figure 7 a wall 82 closing the container at its lower end, pierced with an orifice 83 closed before use by a peelable film 84. The wall 82 and the peelable film 84 allow to isolate ambient air the bag 80 before use, for better conservation of the product. For use, the peelable film 84 is removed. As a variant, the peelable film could be replaced by a self-drying pin.

En outre, il est possible grâce à la tension de la poche de conditionner le produit lorsque le récipient est plein avec une certaine pression, ce qui facilite l'amorçage de la pompe.In addition, it is possible thanks to the tension of the bag to condition the product when the container is full with a certain pressure, which facilitates priming of the pump.

La poche peut présenter une épaisseur variable de manière à avoir des zones plus facilement déformables que d'autres, en vue de privilégier une ou plusieurs directions de déformation.The pocket may have a variable thickness so as to have zones that are more easily deformable than others, with a view to favoring one or more directions of deformation.

Claims (17)

Dispositif de conditionnement et de distribution d'un produit liquide ou pâteux (P), comprenant un récipient (2) apte à contenir ledit produit, ce récipient présentant un orifice de sortie de produit, équipé d'une pompe comprenant une valve apte à permettre le départ de produit sans rentrée d'air, le récipient comprenant en outre une paroi de fond (28) constituée par une poche délimitant à l'intérieur du récipient un espace (23) contenant ledit produit, ladite poche étant capable de se déplacer dans le récipient en réponse à un départ de produit pour diminuer le volume dudit espace (23) et maintenir le produit stocké à l'abri de l'air dans le récipient, ladite poche étant fixée à une extrémité à sa périphérie au récipient et étant apte à se déformer pour diminuer le volume dudit espace (23) jusqu'à épouser sensiblement la forme de l'intérieur du récipient, caractérisé par le fait que ladite poche est réalisée dans un matériau élastiquement déformable.Device for packaging and dispensing a liquid or pasty product (P), comprising a container (2) capable of containing said product, this container having a product outlet orifice, equipped with a pump comprising a valve capable of allowing the product leaving without air intake, the container further comprising a bottom wall (28) constituted by a pocket delimiting inside the container a space (23) containing said product, said pocket being able to move in the container in response to a product departure to reduce the volume of said space (23) and keep the product stored away from air in the container, said pocket being fixed at one end at its periphery to the container and being suitable to be deformed to decrease the volume of said space (23) until it conforms substantially to the shape of the interior of the container, characterized in that said pocket is made of an elastically material deformable. Dispositif selon la revendication 1, caractérisé par le fait que la pompe est située en partie supérieure du récipient lors de l'utilisation.Device according to claim 1, characterized in that the pump is located in the upper part of the container during use. Dispositif selon la revendication 1 ou 2, caractérisé par le fait que la poche est apte à se déployer dans un premier temps sans que sa paroi ne se tende puis dans un deuxième temps à se dilater élastiquement.Device according to claim 1 or 2, characterized in that the pocket is capable of deploying at first without its wall becoming stretched and then, at a later stage, of expanding elastically. Dispositif selon la revendication 3, caractérisé par le fait que ladite poche est apte à se déployer dans un premier temps sans que sa paroi ne se tende pour occuper plus de la moitié de l'espace initialement occupé par le produit, puis dans un deuxième temps la poche est apte à se dilater élastiquement pour occuper l'espace restant libéré par le produit.Device according to Claim 3, characterized in that the said pocket is capable of deploying at first without its wall stretching to occupy more than half of the space initially occupied by the product, then subsequently the pocket is able to expand elastically to occupy the remaining space freed by the product. Dispositif selon la revendication 4, caractérisé par le fait que la poche est munie intérieurement d'une doublure en un matériau non élastiquement déformable mais très imperméable aux gaz, ladite doublure étant apte à se déployer pour accompagner la déformation de la poche jusqu'à ce que la paroi de cette dernière se tende.Device according to claim 4, characterized in that the pocket is provided internally with a lining made of a non-elastically deformable material but very impermeable to gases, said lining being able to deploy to accompany the deformation of the pocket until as the wall of the latter tightens. Dispositif selon la revendication 1 ou 2, caractérisé par le fait que la poche est sensiblement tendue lorsque le récipient est plein.Device according to claim 1 or 2, characterized in that the pocket is substantially stretched when the container is full. Dispositif selon la revendication 6, caractérisé par le fait que la poche se présente sous la forme d'une membrane sensiblement plane.Device according to claim 6, characterized in that the pocket is in the form of a substantially flat membrane. Dispositif selon la revendication 7, caractérisé par le fait que le récipient est conformé de sorte que lorsqu'il est vide la poche s'est déplacée sur une hauteur de 15 à 20 mm.Device according to claim 7, characterized in that the container is shaped so that when empty the bag has moved over a height of 15 to 20 mm. Dispositif selon l'une des revendications précédentes, caractérisé par le fait qu'il comporte des moyens d'obturation (14; 41, 44; 51, 58; 61, 65) aptes à isoler l'intérieur (29) de la poche (28) de l'air ambiant au moins avant la première utilisation du dispositif.Device according to one of the preceding claims, characterized in that it comprises closure means (14; 41, 44; 51, 58; 61, 65) capable of isolating the interior (29) of the pocket ( 28) ambient air at least before the first use of the device. Dispositif selon la revendication 9, caractérisé par le fait qu'il comporte une valve (41; 62) disposée dans un évent faisant communiquer l'intérieur (29) de la poche (28) avec l'extérieur, cette valve étant conformée pour permettre une entrée d'air dans la poche et interdire une sortie d'air vers l'extérieur.Device according to claim 9, characterized in that it comprises a valve (41; 62) arranged in a vent communicating the interior (29) of the pocket (28) with the exterior, this valve being shaped to allow an air inlet in the pocket and prohibit an air outlet to the outside. Dispositif selon l'une des revendications 9 et 10, caractérisé par le fait que ladite poche (28) est repliée sur elle-même avant l'utilisation du dispositif par aspiration de l'air contenu à l'intérieur (29) de la poche.Device according to either of Claims 9 and 10, characterized in that the said pocket (28) is folded back on itself before the use of the device by suction of the air contained inside (29) of the pocket . Dispositif selon l'une quelconque des revendications 9 à 11, caractérisé par le fait que ladite poche (28) présente une forme de soufflet à l'état replié.Device according to any one of Claims 9 to 11, characterized in that the said pocket (28) has the shape of a bellows in the folded state. Dispositif selon l'une quelconque des revendications 9 à 12, caractérisé par le fait que lesdits moyens d'obturation comportent un robinet (44; 51; 61) à au moins deux positions, agencé de sorte que dans l'une des positions, le robinet interdise l'entrée d'air dans la poche (28) et dans l'autre position, le robinet permette l'entrée d'air dans la poche (28).Device according to any one of Claims 9 to 12, characterized in that the said shutter means comprise a tap (44; 51; 61) with at least two positions, arranged so that in one of the positions, the tap prevents air from entering the pocket (28) and in the other position, the tap allows air to enter the pocket (28). Dispositif selon la revendication 13, caractérisé par le fait que ledit robinet (61) est équipé d'une valve d'entrée d'air (62) autorisant dans une première position du robinet une entrée d'air dans la poche et interdisant la sortie d'air de celle-ci, et d'une valve de sortie d'air (65), autorisant dans une deuxième position du robinet une sortie d'air de la poche et interdisant une entrée d'air dans celle-ci.Device according to Claim 13, characterized in that the said tap (61) is equipped with an air inlet valve (62) allowing, in a first position of the tap, an air entry into the pocket and preventing the outlet air therefrom, and an air outlet valve (65), allowing in a second tap position an air outlet from the bag and preventing air from entering the bag. Dispositif selon l'une quelconque des revendications précédentes, caractérisé par le fait que lesdits moyens d'obturation comportent une membrane amovible (14; 58).Device according to any one of the preceding claims, characterized in that the said closure means comprise a removable membrane (14; 58). Dispositif selon l'une quelconque des revendications précédentes, caractérisé par le fait que ladite poche (28) est solidaire d'une embase (4) à fixer par encliquetage sur le corps (3) du récipient.Device according to any one of the preceding claims, characterized in that the said pocket (28) is integral with a base (4) to be fixed by snap-fastening to the body (3) of the container. Dispositif selon l'une quelconque des revendications précédentes, caractérisé par le fait que ladite poche présente une épaisseur variable de manière à avoir des zones plus facilement déformables que d'autres, en vue de privilégier une ou plusieurs directions de déformation.Device according to any one of the preceding claims, characterized in that the said pocket has a variable thickness so as to have zones that are more easily deformable than others, with a view to favoring one or more directions of deformation.
EP96401082A 1995-05-17 1996-05-17 Packaging and dispensing device for liquid or viscous products Expired - Lifetime EP0743263B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9505845A FR2734247B1 (en) 1995-05-17 1995-05-17 DEVICE FOR PACKAGING AND DISPENSING A LIQUID OR PASTY PRODUCT
FR9505845 1995-05-17

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EP0743263A1 true EP0743263A1 (en) 1996-11-20
EP0743263B1 EP0743263B1 (en) 2000-01-19

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US (1) US5772079A (en)
EP (1) EP0743263B1 (en)
JP (2) JPH08318979A (en)
DE (1) DE69606221T2 (en)
ES (1) ES2143728T3 (en)
FR (1) FR2734247B1 (en)

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EP1328465A4 (en) * 2000-10-23 2008-04-16 Medical Instill Tech Inc Fluid dispenser having a rigid vial and flexible inner bladder
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CN101863343B (en) * 2009-04-20 2014-06-04 卢姆森股份公司 Device for containing fluid substances under airtight conditions and for dispensing them
CN101863343A (en) * 2009-04-20 2010-10-20 卢姆森股份公司 The device that is used under air tight condition, holding flowing material and distributes this flowing material
CN103935619A (en) * 2013-01-23 2014-07-23 株式会社新高 Metering bottle
WO2015142839A1 (en) * 2014-03-20 2015-09-24 Gojo Industries, Inc Closed system for venting a dispenser reservoir

Also Published As

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JP2005206255A (en) 2005-08-04
FR2734247A1 (en) 1996-11-22
ES2143728T3 (en) 2000-05-16
US5772079A (en) 1998-06-30
DE69606221D1 (en) 2000-02-24
EP0743263B1 (en) 2000-01-19
FR2734247B1 (en) 1997-06-27
JPH08318979A (en) 1996-12-03
DE69606221T2 (en) 2000-09-28

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