DEVICE FOR CONDITIONING AND DOSE DISTRIBUTION OF A FLUID PRODUCT

专利摘要:
The device (1) for packaging and dispensing a generally fluid product comprises a distribution head (1b) placed above an external body (2) in which an internal container (4) is inserted, forming a reservoir and adapted to rigidly attach to a dosing assembly (15) of the head. The metering assembly, of the no-air type, includes a metering pump (7) surrounded and supported by a sealing member (S) directly in contact with the upper end (4a) of the container in a connection zone annular waterproof. A ring (24) surrounding the connection area covers an inner peripheral volume defined between the body and the container. A wall (P4) movable towards the inlet of the pump, on the one hand ensures a tight separation and on the other hand maintains an identical pressure between the product (5) in the tank and the air (22) peripheral volume.
公开号:FR3042181A1
申请号:FR1559595
申请日:2015-10-08
公开日:2017-04-14
发明作者:Marc Delmon；Gerald Martines
申请人:Qualipac SA；
IPC主号:

专利说明:

DEVICE FOR CONDITIONING AND DISTRIBUTION BY DOSE
A FLUID PRODUCT
The present invention relates to the technical field of packaging, and more particularly to that of the packaging and dispensing of a liquid or viscous product intended to be kept in a sealed manner and to be dispensed in the form of unitary dosages. using a distributor set. The invention more particularly relates to a device for packaging and dispensing a fluid, and which comprises firstly a container for containing the product, and secondly a metering tip of the type without air inlet to distribute the product.
This product packaging and dispensing device, generally fluid, typically comprises a dosing assembly adapted to dispense a dose of the product. From the point of view of the architecture of the product, the device is broken down into two sub-parts: the tank part which comprises a container (delimiting the tank) provided with a top filling opening, typically single; - The head that assembles on the tank part and integrates the dosing unit.
To allow pharmaceutical or cosmetic applications, the dose delivered must be constant and precise. In order to avoid pumping a volume different from the desired dose (for example cavitation), the dosing assembly typically comprises a metering pump without air intake (conventionally referred to as "airless") associated with an element. capping which belongs to a stationary part of the dosing unit (the blocking element making it possible to position the inlet of the dosing pump in the tank), while a movable actuating portion allows the dispensing of the fluid product .
A fluid product conditioning and dispensing device of the above-mentioned type is known from the document US 2013/0140332, which describes a pumping mode using a sliding piston in the container (which requires a dynamic sealing of the lower side). of the tank). The reservoir portion includes the container, the associated piston and a connection interface of the container for connecting the dispensing portion of the head to the reservoir of the lower portion (after filling), which requires a static seal. In a mounted state of the head, the inlet of the metering pump extends to a tubular end of the tank opposite the bottom of the tank portion.
Achieving these different functions with a sufficient level of performance dictates the shape of the product.
This type of connection interface thus has the disadvantage of limiting the dressing options (lack of versatility), especially when the container defines the outer body of the tank part (lower part). The shape must necessarily be cylindrical of revolution to ensure a good seal of the contact between the piston and the inner face of the container (dynamic seal). This makes it possible to avoid in particular: the modification of the characteristics of the formula by the selective evaporation of certain of its compounds from the inside of the pack to the outside, the oxidation of certain components of the formula which would be sensitive in contact with oxygen that could penetrate from the outside to the inside of the pack.
In the luxury sector, in the field of cosmetics or others, it is however difficult to be satisfied with a form essentially dictated by functional imperatives of performance.
In an alternative embodiment, the document US 2013/0140332 thus shows a covering defined by a hollow body which envelops the container, by enclosing it at a neck of the container (see FIGS. 6A and 6B of this document with a threaded neck). However, the filling of the container is in this case unsuitable for mass production, particularly when the liquid product is viscous (the product may for example correspond to a wide range from 1000 centipoise (cps) to 40000 cps). Indeed, it has been observed that the narrowness of the opening due to the presence of a neck has the effect of slowing down the rate of filling. In addition, it is necessary to provide a format of the dressing body which depends closely on the container used. The use of a threaded neck for sealing also has the disadvantage that the system is easily removable. However, the performance requirements of dispensing devices in the cosmetic field tend to require the preservation of the integrity of the distribution circuit (integrity of the "airless" system). It is therefore preferable to be able to achieve a static seal without resorting to a removable fastening system, so that the device can be unmountable once packaged (including for the end user).
Furthermore, it is found that static sealing with the use of a gasket can cause problems when an elastomeric seal is interposed between the neck and the pump. There is then a risk of migration in the formula of the plasticizers present in the joint (risk of toxicity). The use of a vulcanized rubber gasket has the disadvantage of a characteristic odor which may give the formula an unpleasant odor. And if the seal is designed from cellular material, it is found that they have the property of complying with time and losing their seal.
There is a need to better integrate a metering assembly without air intake, which can meet both the many technical requirements desirable for such a system (static sealing, dynamic sealing and circuit protection product, distribution capacity d a wide range of viscosity) being also able to integrate many types of skins. The obtaining of such a system is very complex because many parameters interact, often in an antagonistic manner. The object of the invention is to remedy one or more of the drawbacks of the devices of the state of the art and to propose a packaging and distribution device that is very suitable for the various requirements of the practice (in particular the tightness requirement and, where appropriate, unbreakable) and compatible with very different skinning options. For this purpose, it is proposed according to the invention a packaging and dispensing device of the aforementioned kind with a metering assembly adapted to dispense a predetermined dose of product and provided with a closure member which extends around the metering pump and defines a lower face of the head (at least a part of the filling opening that can be closed by the support member), with the particularity that the body and the container are secured to one another by an annular ring which belongs to the reservoir part (ring distinct from the body and the container, and preferably made in one piece) and extends between an inner surface engaged against the upper end of the container and a peripheral surface for attaching to the body, furthermore knowing that the connecting interface comprises the upper end of the container, which may be of the neckless type (without collar) and comprises at least one a leaktight wall movable towards the inlet to compensate for a depression in the tank (depression briefly created by the extraction of the dose of product at each use), the upper end being adapted to engage with the element capping by defining an annular contact sealing container - capping element.
This arrangement with an adapter ring to the external shape of the casing body allows great flexibility. The closure element which partially envelops the metering pump, and more generally the metering assembly, does not need to be dimensioned in a particular way, the fixing contact with the body being made by the ring. Advantageously, the ring makes it possible: to make the connection between the container (inside) and the covering body (outside), this function being able to be implemented during a pre-assembly of the tank part at the manufacturer of the packaging (this is the link between the functional interior and the aesthetic exterior); and - to adapt the tank part to the format of the dispensing head, so that the final assembly can be implemented in the conditioner after filling, which is very interesting from a logistical point of view (a meadow -assemblage can be achieved without it is necessary to fill immediately the container, the connection between the reservoir portion and the dispensing head corresponding to a final assembly step).
In other words, we define a functional part of the device which is entirely internal, formed by the dosing assembly and the container provided with the connection interface. This functional part, which satisfies the high sealing requirements, in particular in the cosmetics or pharmaceutical field before and even after the first use, can be designed separately from the covering part. The functional part can thus be produced to a very large number of copies (of the order of several millions for example), while being integrable in a personalized device (in its format and in the choice of the material of the body) thanks to the adapter ring.
The movable wall of the container is thus very well protected. It makes it possible to ensure a tight separation and to maintain an identical pressure between the fluid product contained in the reservoir and the air of the peripheral volume located under the ring (between the container and the body).
The positioning of the adapter ring around the filling opening of the container, that is to say at the connection between the container (bottom) and the dispensing head (at the top), is advantageous for maintaining the lateral dressing away from the container, which allows to use a wide range of materials (not excluding very rigid materials and / or non-plastic) to form a bottle body or bottle, preferably a room for a unitary aesthetic appearance (monobloc body which covers the reservoir part and which, in some options, can also cover laterally the dispensing head).
The container may have a cylindrical shape or close to a cylinder (for example slightly frustoconical) and contain filled product to a height level which corresponds substantially to the level of the upper annular edge of the body. The wide opening of the container (without neck) facilitates filling.
The filling process can in practice be as follows: a cannula is introduced into the receptacle by which the product is poured into the receptacle, this cannula goes down to the bottom of the receptacle and then rises again as the filling takes place. The diameter of the cannula is limited by the diameter of the opening of the vial minus the minimum operating clearance. In prior devices, a typical opening is defined by a neck having an inner diameter of about 8 mm, which allows to introduce a cannula of 6 mm outer diameter and 5 mm maximum inside diameter. With such an internal diameter for liquids of high viscosity, there are significant losses that: i) limit the flow velocity; and ii) create a shear of the formula that may hinder its homogeneity, for example in the case of emulsions that may tend to separate.
In addition, for viscous product packaging, a small diameter of the cannula generates a domed shape on the upper face of the product, so a waiting time or additional mechanical action to smooth the surface before closing.
In this case, the container is preferably not shrunk at its upper end and the opening can typically define a diameter of at least 15 or 16 mm, preferably greater than 20 mm. Such a diameter of the filling opening may correspond to at least 75 or 80% of a container diameter defined around a piston at the lower end of the container. The size of the opening diameter may be larger, within the diameter of the container (thus corresponding, if necessary, to 100% of the container section).
In various embodiments of the device according to the invention, one or more of the following provisions may also be used: the closure element comprises an insertable sealing part in radial leaktight contact annular with an inner face of the upper end, so that the upper end and the closure member are sealingly connected; the insertable sealing portion comprises a cylindrical section insertion portion inserted through the upper end of the container and through an opening of the ring and coaxial with a central conduit for accommodating and supporting the metering pump; the stationary part comprises a holding part which is more rigid than the closure element and which extends annularly around the closure element, the holding part being configured to be engaged with the ring, so as to that the closure member is held tight between the upper end of the container and the holding member; the blocking element, preferably made in one piece, comprises a flange adjacent to the insertable sealing part, the flange being clamped between the holding piece and an axial bearing edge of the adjacent upper end. on the inner side; the holding member is essentially made of a first rigid material, preferably chosen from the following families of materials: polyolefins, styrenics, copolyesters, polyacetals, polycarbonates, polyamides, while the closure element is essentially a second, more flexible material that the first material, preferably low density polyethylene or an elastomer; the body is made in one piece and has an upper opening, the ring closing the upper opening without interfering with the filling opening; the container is of the type without a neck; the container has a circular section, at least on the side of the upper end, the ring defining a circular opening for the insertion of the container into an interior volume of the body; the body defines a first covering periphery, the head comprising an annular connection integral with said stationary part and which surrounds the dosing assembly to define a second periphery of covering; the head further comprises a cap, removable, attaching to the annular fitting in a storage configuration, the body, the annular connector and the cap giving the device its outer shape in the storage configuration; the body comprises an annular upper surface from which extends an annular projection to a bearing edge, an outer shoulder being defined by the annular upper surface around the annular projection, the annular coupling extending around the projection annular and coming to rest against the external shoulder; the annular projection has at least one first retention relief on an inner face, and at least one second retention relief on an outer face; in a mounted state of the head on the reservoir part, the first relief and the bearing edge form stops of different orientation, and preferably opposite, to axially lock the ring relative to the body, while said second relief and the outer shoulder form stops of different orientation, and preferably opposite, for axially locking the annular connection relative to the body; when the body has a bottom, at least one lower bearing surface having a pressure equalizing hole is provided to define a base plane of the body; this orifice may be offset relative to the lower bearing surface, so as to extend back from the base plane; the body comprises a one-piece tube which defines a single periphery of lateral covering around the container and the dosing assembly; the stationary portion comprises a retaining piece which extends annularly around the closure member and has a lower portion in contact with the ring, and preferably engaged with the inner surface of the ring to be axially integral with the ring ; the holding member extends longitudinally from the lower portion to an upper end portion engaged with an outer collar formed on the metering pump; the closure member defines with the retaining piece an annular groove belonging to the head, the upper end defining an axial bearing edge inserted into the annular groove in a mounted state of the head on the reservoir portion; the holding part has an inner skirt which delimits with said lower part an annular groove determined opposite the upper end part, the closure element and the upper end of the container being in annular sealing contact; with each other within the annular groove determined in a mounted state of the head on the reservoir portion; the inner surface of the ring has a preferably annular inner rim in axial contact from below with a collar or collar portions of the container, the side of the upper end; the ring comprises a substantially planar radial portion which extends between an inner rim and an annular outer rim, the inner rim delimiting an opening of the ring which is preferably located above an interior volume of the body; the ring further comprises a continuous or segmented skirt (for example slit) which extends longitudinally towards the bottom from a lower face of the radial portion, the peripheral surface of attachment to the body being defined by the skirt and by the underside of the flange internal; the ring comprises a protruding upper portion extending longitudinally about a longitudinal axis of the container from an upper face of the radial portion, internal reliefs being formed on the projecting upper part, projecting radially inwards and vis-à-vis the upper end of the container, to engage with a portion, preferably a flange, of the dosing assembly; the upper end of the container defines a sealing surface which is, for example, conical with an enlargement of section up to an axial bearing edge (this edge being able to form a zone of abutment contact with an annular surface of the capping element set back from an insertable portion of the capping element); - The container is substantially cylindrical and extends about a longitudinal axis, the sealed and movable wall being defined by a piston movable in translation along the longitudinal axis; the container has a side wall adapted to guide a piston, the side wall having a circular section widening towards a lower end of the container and extending to an opening for mounting the piston in the container; - The sealed and movable wall is defined by a retractable flexible portion, the upper end of the container forming a rigid connection; The invention also relates to a method of assembling a product dispensing device per dose, which facilitates the logistics between the functional distribution part (which may be from a mass production plant) which includes the or the moving parts and the sealing area between the reservoir and the dosing assembly, and the outer part (which can be very personalized and produced to a possibly very limited number of copies). For this purpose, it is proposed an assembly method to obtain a packaging and dispensing device according to the invention from a tank part and a head, knowing that the fluid product is introduced, before a final step for mounting the head on the reservoir part, in a container belonging to the reservoir part through a filling opening, the method comprising the steps consisting essentially of: - combining, in a non-inlet type dosing assembly of air: i) a stationary part provided with a closure element which forms a lower face of the head, and ii) a metering pump connected to a movable actuating portion and intended to control the distribution of the fluid product in response an action on the actuating portion, so that the sealing member surrounds the metering pump; inserting the container through an opening defined by an annular ring and mounting the ring in a body which is hollow and defines a covering periphery at least of the reservoir part, so that the container is held in the interior volume of the body while the ring extends around the filler opening opposite a bottom or lower edge of the body; knowing that the body and the container are secured to one another: i) by engaging against the body a peripheral surface for attachment to the body formed at the periphery of the ring; and ii) engaging an inner surface of the ring against the upper end of the container; the container being for example of the type without a neck to define said filling opening and comprising at least one sealed wall and movable towards said inlet to compensate for a depression in the tank (so that the wall moves to reduce the volume of the tank following the decrease of product with each use); and wherein the final step of mounting is performed by connecting the closure member to the top end of the container, to seal the filler opening (defining an annular static sealing contact directly between the container and the plugging element).
In fact, it is thus ensured that a high level of static tightness is maintained between the container and the head because the opening of the container is not deformed (as it might be the case if a collar had been made or part of similar relief incorporated in the container which would be connected to the shape of the dressing, not necessarily circular).
In the case of a covering in at least two superimposed parts, the container is typically introduced into the body from above through the opening of the ring, which can avoid an additional operation of closing the bottom by a lid after placing the container. In addition, it is permitted to mount the lower tank without wall deformation. This guarantees a satisfactory subsequent operation of the dispensing device.
In the case of an integral cladding by a continuous tube or similar sleeve of the body, the container is instead introduced by a lower opening of this tube, and a lid forming the bottom is added. It is understood that, thanks to the ring, the static sealing zone can be wide and kept at a radial distance from the covering, regardless of the type of body concretely used around the tank. Other features and advantages of the invention emerge from the description given below, with reference to the appended drawings, which represent, by way of non-limiting examples, embodiments and implementations of the object of the invention. the invention. In these drawings: - Figure 1 is an axial sectional view of a device according to the invention, which has in particular two parts assembled to each other in a sealed manner at the upper end of the container which forms the product tank; FIG. 2 is a separate perspective view of the components of the device of FIG. 1, showing the top of the reservoir part (lower part before product filling) and the underside of the head, with an insertable part designed to cooperate against a sealing surface defined by the upper end of the container; FIG. 3 is a view in axial section showing in greater detail the connection between the tank part and the head of the device of FIG. 1, with an angular offset of 90 ° with respect to the section of FIG. 1; FIG. 4 shows in perspective an example of a retaining piece that can be used in the stationary part of the dosing assembly and contributes to an axial retention of the metering pump in a housing defined by the closure element; FIG. 5 is an exploded perspective view of the constituent elements of the head of the device of FIG. 1; FIG. 6 shows in perspective the relative arrangement between the closure element which houses the metering pump and the ring of the tank part, with an overview of the intermediate space provided for the upper end of the container and for the part lower part of the holding part; Figure 7 illustrates with axial sectional views a mounting mode of the lower tank, with a circular section container inserted into a body of oval section; - Figure 8 illustrates with axial sectional views of the mounting mode of a ring in a substantially rectangular section body, according to an alternative embodiment; - Figure 9 is a view similar to that of Figure 1 which illustrates an alternative embodiment with a glass body whose section varies; - Figures 10A and 10B are respective views in axial section of two alternative embodiments for the dressing of the device; Figure 11 is a detail view in axial section illustrating an example of the bottom of the device when the body is defined by a sleeve; FIG. 12 is a perspective view of the top obtained with the covering illustrated in FIG. 10B; - Figure 13 is a similar view at the bottom of Figure 2, illustrating the case of a body significantly shorter than the container to define a partial peripheral dressing.
In the various figures, the same reference numerals designate analogous elements of the various exemplary embodiments shown and described.
As shown in FIG. 1, the packaging and dispensing device 1 comprises a body 2 (typically a bottle body) with a bottom 2a which defines a support base B, a container 4 which extends (entirely, for essentially or partly) inside the body 2 and can store the liquid or viscous product 5 to be dispensed, a sealing member S, preferably made of thermoplastic material, assembled to the container 4 in a sealed manner and which is part of 6. In a nonlimiting manner, the body 2 may be defined by a single piece of preferably rigid material, for example glass or plastic, opaque, translucent or transparent.
Alternatively, all or part of the body 2 can be made of metal. A coating may be provided to cover all or part of the outer face f2 of the side wall 2b of the body 2. The decorative coating may comprise any surface treatment compatible with the material of the body 2, for example lacquer on glass, metallization on plastic , anodizing on aluminum ... and / or any decor by processes such as hot foil, screen printing, pad printing, label deposition, laser engraving, etc.
In this first embodiment, the body 2 and the container 4 belong to a reservoir part 1a of the device 1. The container 4 delimits the reservoir of the reservoir part 1a. The complementary portion of the reservoir portion 1a is a head 1b which includes the distribution functions. A contact obtained during the assembly after filling between the head lb and the tank part allows it to seal between an upper end 4a of the container 4, which is tubular and in practice circular section (without being limiting ), and a complementary surface that belongs to the head lb. Even when the body 2 and the head 1b respectively have outer cladding surfaces whose circumference is not of the same shape, it is preferable that the upper end 4a is circular, this shape being optimal for obtaining a perfect static seal without the need for an additional seal. Thus, the container 4 has a filling opening 0 on the side of the upper end 4a which is typically circular, as clearly visible in FIG. 2.
The container 4 is closed sealingly by the closure member S, here formed in one piece, in an annular connection zone. This means that the filling of the container 4 can be carried out after placing the container 4 in the body 2, just before the introduction of the head 1b (the latter having also been completely assembled with its part or parts thereof. dressing).
With reference to FIGS. 1 to 3, the circular shape is also particularly well adapted to allow the container 4 to be extended axially by a metering assembly 15 which includes a metering pump 7. The central axis X, around which longitudinally extends the container 4, may coincide with an axis A of the metering pump 7, in particular when it includes an axially movable member such as a piston.
Referring to Figure 3, a metering pump 7 having an inlet 7a is mounted in the nozzle 6. The inlet 7a is defined at a first end 8a of a distribution channel (not shown). The pump 7 is of the "airless" type, that is to say without air intake, with a rod 11a or equivalent moving part actuated during the depression of an activator, generally disposed in the upper part of the device 1, thus allowing the fluid forming the product 5 to exit through a similar nozzle or diffusion member 14, or to exit via an applicator member (in the case of an applicator tip).
An actuating portion 10, for example located in the nozzle 6 opposite the inlet 7a of the metering pump 7, is provided to allow the product 5 to exit the nozzle 6 on the side of an outlet 7b of the dosing pump 7.
The actuating portion 10 is typically defined by a pusher member 11, movable along a longitudinal axis which may be parallel to the central axis X of the container 4. The pusher member 11 has a substantially tubular wall 11b and is connected by the above on the upper end of the rod 11a. The sealing element S is integral with an insertion portion 12 which belongs to the metering pump 7. It is understood that the first end 8a is part of the insertion portion 12 and may, depending on an option, extend protruding from the closure member S, in a direction opposite to the actuating portion 10 (in practice: protruding downwardly when the packaging and dispensing device 1 is in a vertical position with the bottom 2a which defines a support base B).
The body 2 is provided with a side wall 2b extending longitudinally about the central axis X from the bottom 2a to an annular edge 2c which delimits an upper opening 13. The section of the upper opening 13 can be wide of the fact that the body 2 is here of the type without neck (and it is more generally a body without collar). The upper opening 13 may typically be as wide as the section of the body 2 when this section is substantially constant. It is understood that the actuating part 10, mobile, can extend here entirely above the upper opening 13 (non-limiting option). The diffusion member 14, for example in the form of a nozzle, is in fluid communication with the outlet 7b to deliver and direct a dose of product. Although the illustrated examples show a dose delivered in a radially outward direction, other configurations are possible: for example with an output of the product oriented substantially axially or in a direction (typically not vertical) forming any angle with the extension direction of the device 1. This diffusion member 14 extends transversely in position adjacent to the actuating portion 10 and follows the displacement of the pusher member 11. A locking in a high position of the pusher member 11 may optionally be provided, for example with a stop contact when the pusher member 11 is rotated to deviate from a predefined orientation of the diffusion member 14. A slot separating two abutment areas can thus allow the displacement of the push member 11 according to the predefined orientation.
As can be seen clearly in FIG. 1, the tip 6 may be covered, partially or totally, by a cap 16. The tip 6 here decomposes into a dosing assembly 15 (including in particular the metering pump 7, the plugging S and the actuating portion 10) arranged in the extension of the container 2. An annular connector 17 may be provided to allow the two subassemblies shown in FIG. 2 to be locked together, while serving in addition to secure the cap. 16 removably.
The annular connection 17, which extends below the actuating portion 10, here corresponds to a hoop in intermediate position between the body 2 and the cap 16. The annular connection 17 has, in this nonlimiting example, a function of covering the upper part of the device 1 in combination with the cap 16. Optionally, this annular connection 17 allows locking in the high position of the pusher member 11.
In the configuration illustrated in FIG. 5, the pusher member 11 may cover the portion 18 of the annular fitting 17, at least when it is actuated to dispense the product 5. However, it may be advantageous if it is the pusher member. 11 which slides inside a dressing part, for example with a configuration making the pusher member 11 indémontable (via an annular bead, ribs or retention pins of the organ pusher 11). This latter configuration is advantageous when it is desired to be able to guarantee the non-breaking of the circuit of the product 5.
In FIGS. 10A, 10B and 12, alternative embodiments can be seen with a mounting of the pusher member 11 which allows retention by an external covering part. For example, it is possible to provide an annular connection 117 (the case of FIG. 10A) which consists of: a sleeve 116 for lateral dressing of the head 1b; and a radial portion 117a extended by a section of conduit 118.
Such an annular connector 117 has many similarities with the annular connector 17 provided in the embodiment of Figs. 1-5 and essentially differs in that the sleeve 116 extends upwardly to an end 116b which surrounds the portion. actuator 10, so that the cap 16 is no longer necessary.
In the case of FIG. 10B, it is a tube 102 which defines a covering common to the reservoir part 1a and to the head 1b. Thus, there is no provision for an annular connection (17 or 117) separate from the body. A bottom 200 must then be attached to the end 102a of the tube to form the body 100 and close down the device 1 (so as to protect the lower end 4c of the container 4).
Referring now to Figure 3, the metering pump 7 comprises a pump body 7c, here cylindrical and provided with an outer collar 21. The insertion portion 12 which extends under the collar 21 is housed in a conduit L (also cylindrical) of the closure element S.
The operation of the metering pump 7 is of a kind known per se, for example with a piston integral with the rod 11a (configured to increase the pressure in a metering chamber), slidably mounted in a longitudinal distribution channel. A non-return valve provided on the inlet side 7a defines a hermetic separation between the volume V of the tank and the distribution channel of the pump 7.
When the push member 11 is depressed, here in response to a vertical manual pressure exerted on the operating part 10, the rod 11a is lowered together with an internal actuating element (for example a piston) which operates the distribution. In practical use, the cap 16 is obviously removed so that the upper surface of the actuating portion 10 (here formed by a pusher member 11 having a tubular wall 11b surrounding the spring R) is exposed for actuation.
More generally, it is understood that the dosing unit 15 makes it possible to deliver a specific dose of the product 5, this dose being ejected by creating a vacuum inside the container 4. As the pump 7 discharges the product 5 by creating a vacuum (vacuum), there is provided here a sealed and movable wall P4, typically provided at the bottom of the container 4, which moves upwards to compensate for the depression so as to bring the device back to ambient atmospheric pressure before the next activation. The section of this wall P4 is complementary to the tube defined by the container 4, and in particular circular in the example shown.
A vessel 4 with a circular section is advantageous for obtaining satisfactory dynamic sealing performance at a piston 29 and static sealing at the interface between the reservoir bottom portion 1a and the head 1b (upper part of FIG. distribution).
As illustrated in FIGS. 3 and 7 in particular, the container 4 can be made integral with the body 2 and / or centered with respect to the side wall 2b, by means of a ring 24 which is mounted in the opening 13, by having an outer shape in correspondence with the inner circumference of the body 2 near the annular edge 2c.
The ring 24, of annular shape, extends around a through hole for the container 4. An annular bead 400, a collar and / or lugs formed on the outer face of the container 4, near the opening 13, abut one or more flanges RB forming an axial abutment surface, which makes it possible to block the container 4 in an insertion configuration in the body 2. The container 4 can thus be kept at a distance from a bottom 2a of the body 2 or at a predetermined relative distance from an annular lower edge of the body 2.
In this first embodiment as well as in the variant embodiment of FIG. 10A, the configuration of the parts is here provided so that the container 4 is prevented from sinking into the body 2 during the insertion in force of the head lb (after filling). This is enabled by the lower surface of the bead 400 and the corresponding surface of the ring 24. It is understood that the ring 24 provides a moderate retention of the elements of the reservoir part as shown at the bottom of FIG. 2 (with the container 4 maintained in the body 2 during intermediate handling and transport operations, which is a temporary situation), while in the situation after the final assembly as illustrated in Figures 1 and 3, the parts are inseparable.
In the nonlimiting example of Figure 1, the annular bead 400 may extend lower than one or more internal reliefs 240 formed on the ring 24. These reliefs 240 are offset to outside not to impede the establishment of the container 4 in the body 2 (these reliefs 240 extend here outside a virtual cylinder parallel to the central axis X and defined by the flange RB). Thus, it is the flange RB which delimits the size of the opening 300 or narrowest passage section of the ring 24. In this configuration, the container 4 is not stressed by clamping contacts (not radial engagement) during its placement in the body 2. There is no irreversible deformations by creep and, more generally, thus avoids the risk of deformation of the section (here perfectly circular) of the container 4.
The container 4 can be suspended via the ring 24, without axial support of the lower end 4c on the bottom 2a. This allows a great freedom of realization of the shape of the bottom 2a of the body 2, including for example the inner face may be hemispherical provided that this part of the body is engaged in any role of mechanical interface with the container 4 Referring to Figures 1, 2 and 7, the container 4 is inserted from above and bears axially on the annular inner rim RB formed in the inner surface SI of the ring 24, here in the extension (to the interior) of a radial annular portion PR.
As illustrated in Figures 1-3 and 7-8, it is understood that at least the first end 4a of the container 4 is rigid and can define: - a first sealed annular contact zone 27 with the closure member S, in an assembled state, so that the product 5 can leave the container 4 only through the first end 8a of the distribution channel 8 (via the inlet 7a of the metering pump 7); and a second annular contact zone 28 with an internal face 241 of the ring 24, so that the container 4 is made integral with the body 2.
The first contact zone 27 is, in this nonlimiting example, obtained on the side of an inner annular portion of the first end 4a of the container 4, while the second contact zone 28 is defined on the side of an outer annular portion of the first end 4a. The container 4 further comprises at least one impervious and movable wall P4, which allows the volume V of the tank defined by the container 4 to decrease as and when the consumption of product 5. Of course, the first contact zone 27 can be defined differently in variants, for example by an annular contact located on the outer side of the first end 4a, closer to the opening 13 than the second contact zone 28. More generally, the first contact zone 27 can be selected from the inner surface, the outer surface, the upper surface, one of the two corners, or a combination of these surfaces of the end 4a.
With reference to FIGS. 1 to 3, the container 4 can be firmly held in its position of insertion into the body 2 by connecting pieces of which at least one is integrally attached to the pump 7, and at least one other is integrally attached to the body 2. The sealing member S advantageously forms one of these assembly parts. The method of fixing with sealing between the container 4 and the closure element S can be made robust: by using a conical surface in the upper end 4a, which makes it possible to define the first annular contact zone 27, and - By covering the closure member S by a member or holding piece 26 (here formed of an additional piece) retained axially towards the bottom 2a by the ring 24, in particular by the internal reliefs 240 in the example not limiting of Figure 1.
As can be clearly seen in FIG. 3, the annular surface is formed on a flared inner face 104 of the upper end 4a and may have a sloping portion which extends radially inwards towards the bottom 2a, from a upper radial portion.
The insertable plugging portion 105 belonging to the plugging element S is in annular radial sealing contact with the inner face 104 of the upper end 4a, so that the upper end 4a and the plugging element S are connected. by interlocking tightly. The first annular contact zone 27 is here defined on the side of a flange 106 of the sealing element S which is axially distal from the bottom 2a. In the example of FIG. 1, it can be seen that the flange 106 covers the internal face 104.
The mode of engagement between the tip 6 and the upper end 4a may be as follows: the male conical bearing surface of the closure element S is of a diameter slightly larger than that of the female bearing defined by the inner face 104; during the final assembly, the outer flange 26c of the holding piece 26 snaps into the internal reliefs 240 of the ring 24; - The snap constrains the collar 106 to come to bear on the axial bearing edge 38 of the upper end 4a; this action radially compresses the male conical bearing surface of the closure member S (which is flexible) to conform to the female cone bearing defined by the inner face 104 of the upper end 4a.
With this type of conformation (with forced engagement), it generates a very good seal. Obtaining a significantly high level of sealing may be allowed by combining a rigid material and a flexible material, able to conform to the rigid material to closely match the shape. Here it is for example the container 4 which is rigid, made for example of polypropylene, copolyster or polyamide, and the sealing element S which is flexible, made for example of low density polyethylene or medium density. Of course, the materials can be inverted (the container 4 can be at least locally more flexible than the closure element S).
In order to preserve the integrity of the two opposite conical bearing surfaces, which ensure the seal, it is understood that the closure element S and the container 4, opposite, are advantageously cylindrical symmetry. Thus, no deformation of circularity at the connection disturbs the uniformity of support of the two conical surfaces one on the other. In practice, the axial annular contact at the axial bearing edge 38 does not in itself provide the seal but serves to maintain a good level of radial compression at the conical bearing surfaces.
As can be seen in FIG. 3 (see also FIG. 5), the insertable shutter portion 105 comprises an insertion portion IP of substantially cylindrical section, between the flange 106 and a radial portion PR which is axially proximal to the bottom. 2a. The insertion portion IP of cylindrical section is inserted through the upper end 4a of the container 4 and through the opening 300 of the ring 24. The insertion portion IP is coaxial around the longitudinal axis A of the pump 7, with the conduit L formed centrally in the sealing element S to accommodate and seal around the metering pump 7. For this, in addition to the annular contact zone 27 with the upper end 4a and as clearly visible in FIG. 3, a radial sealing contact is provided between an annular lip 23 of the sealing element S and a range defined at the inlet 7a of the pump 7. The annular lip 23 comes through example to conform by conical contact (same principle as for the conical seat at the upper end 4a) with the end of the pump 7 which defines the inlet 7a.
According to one option, an annular bead (not shown) is formed inside the conduit L of the closure member S, near its axial upper end 37. This bead engages the body of the pump 7 close to its flange 21, so at its most rigid axially.
As illustrated in FIGS. 1 and 3, the closure element S is protected on the side of its collar 106 by the holding part 26. The closure element S and the holding part 26 belong to a stationary part of the dosing assembly 15 which preferably provides a sufficiently robust attachment to the body 2 and the container 4 to withstand a drop test (corresponding to a drop of 1.5 m on a hard surface as in the test specified in the document ASTM D6344-04 (2009)), without breaking any of the internal parts and without compromising the operation of the metering pump 7 nor causing leakage.
The rigid holding piece 26 may be made from polypropylene, a similar rigid polyolefin, or selected from the following families of materials: styrenics, copolyesters, polyacetals, polycarbonates, polyamides.
Referring to Figures 10B, 11 and 12, there is described an alternative embodiment with a body 100 which is decomposed into a cylindrical or non-cylindrical side dressing tube 102 and a bottom 200 (here in the form of a cover inferior) . While the tube 102 is used for mounting the dosing assembly 15 and must be considered as a unitary element of the head lb which must be connected to the tank part la during the final assembly step, the bottom 200 can be considered as belonging to the reservoir part la.
In this case, identical performances are obtained for the static sealing and protection against disassembly of the circuit because the respective contact areas (27, 28) of the upper end 4a are the same. The ring 24 provided in the device of Figure 10B may be identical or very similar to that of Figures 1 and 10A. The tube 102 is here a monobloc element which defines a single periphery of side dressing around the container 4 and the metering assembly 15. The lower end 102a of the tube 102 defines an opening for mounting the cover which forms the bottom 200. Unlike the embodiments with suspension of the container 4 without contact with the body 2 (thanks to the support function of the ring 24), the container 4 can here be in contact with the bottom 200 of the body 100. An insertable portion 201 of this bottom 200 may possibly allow a connection of the bottom 200 to the lower end 4c of the container 4.
The head lb here has a pusher member 111 mounted internally in an upper compartment defined by the tube 102. A transverse wall 120 formed in the tube 102 defines a separation between the upper compartment and a lower compartment in which is housed the reservoir part at the end of the final assembly step. This wall 120 joins and extends around a duct 120a (which is functionally comparable to the duct section 118 or to the portion 18 of the annular connector 17) for enclosing a part of the dosing assembly 15.
It is understood that in this case, the container 4 is positioned inside the body 100 only after the final assembly step to achieve the static seal between the container 4 and the sealing member S, by fitting the part to reservoir la in the tube 102 by the lower end 102a. Concretely, it is possible to slide the ring 24 of the tank part 1a until an engagement is obtained between this ring 24 and retaining means 142 formed on the inner face of the tube 102 on the side of the lower compartment. According to a nonlimiting example, these retaining means 142 may simply correspond to radially inward protruding reliefs and allow snap-fastening of the ring 24. An annular bead of the peripheral face S2 may optionally be provided on the ring 24 to realize this type of snap.
With reference to FIG. 11, the fixing between the bottom 200 and the container 4 may be either performed before the final assembly step or be part of the final assembly step (by fixing the bottom 200 at the same time to container 4 and at the lower end 102a of the tube 102.
With reference to FIGS. 10A, 10B and 12, the internal assembly of the pusher member 111 is made either in an upper compartment defined by the annular connection 117 (the case of FIG. 10A), or in the upper compartment defined by the tube 102. The upper compartment opens axially and a transverse surface, here plane, of the pusher member is clearly visible by flush or slightly recessed relative to the level of the end 102b or 117b, in the non-actuated position. The actuation of the pusher member 111 can be facilitated by means of a notch 102c formed at the upper end 117b of the annular connector 117 (FIG. 10A), or respectively the upper end 102b of the tube 102 (FIG. 10B).
A slot 130, opposite to the notch 102c, can allow the output of the diffusion member 14 to protrude radially outwardly beyond the outer face defined by the tube 102, or to be flush with respect to this face. Although Figure 12 shows a slot 130 which opens at its upper end, such slot 130 can also be placed differently, without opening. The slot 130 is here vertical and can guide the sliding without the possibility of significant rotation of the pusher member 111. Of course, the annular connector 117 may have an upper end 117b identical or similar to the upper end 102b, for example in having an identical slot 130 for the diffusion member 14 and an opposite notch to increase the contact area between a finger of the user and the pusher member 111.
Referring now to FIGS. 1 to 6, the retaining piece 26 and its arrangement in the receiver assembly 26, S for the pump 7 are more particularly described.
With reference to FIGS. 1 to 4, the holding piece 26 extends annularly around the sealing element S and has a lower portion 26b provided with a flange 26c in contact with the ring 24, and preferably taken with the inner surface SI of the ring 24 to be axially integral with the ring 24. The holding piece 26 extends longitudinally around the conduit L from the lower portion 26b to an upper end portion 26d, tubular, in engagement with the outer collar 21 formed on the metering pump 7. The outer collar 21 may also rest on the upper face of the retaining relief or reliefs 261 (FIG 4) which allow the pump 7 to be held.
As clearly visible in FIG. 4, the holding piece 26 may be defined by a section-transition piece between the lower part 26b, wider than the upper end 4a of the container 4, and the upper end portion 26d, less wide than the upper end 4a and provided with an inner face 260 from which retaining reliefs 261, 262 protrude radially inwards to engage axially on either side of the collar 21. provide three coaxial pieces which extend successively around the metering pump: the sealing member S, the holding member 26 and the ring 24 which connects to the body 2, with the particularity that the upper end 4a of the container 4 is inserted between the lower part 26b on the one hand, and the insertion portion IP of the closure element S.
More generally, it can be seen in FIG. 3 that the sealing element S defines with the holding part 26 a narrow annular groove 50 (belonging to the head 1b), in which the axial bearing edge 38 of the end upper 4a is inserted. The upper end 4a can be clamped in this annular groove 50, for example with a contact formed by the lower portion 26b.
In the case of Figures 1 and 6, it can be seen that the holding member 26 is engaged with the pump 7 on the internal reliefs 261, 262 which can be defined by two pairs of lugs. The collar 26c here comes into engagement between two lugs of the same pair, with an axial locking. Due to the support of the container 4 on the inner rim RB of the ring 24 and the axial retention of the holding member 26 by the reliefs 240, the container 4 can not disassemble accidentally. Although Figures 4-5 show a continuous flange 26c, it is understood that such a flange can also be slit and decompose into discontinuous segments.
As illustrated in Figures 3 and 4, the holding member 26 has an inner skirt 26a which defines with the lower portion 26b an annular groove 26g. The zone with the flange 106 of the insertable shutter portion 105 can be housed in this annular groove 26g during the handling and transport operations of the head 1b (as visible at the top of FIG. final assembly operation after filling.
The surface of the sealing element S serving to define the first annular contact zone 27 extends inside this annular groove 26g. In other words, opposite the upper end portion 26d, it is possible to protect by localization in such a groove 26g the sealing surface. After the final assembly, the inner face 104 also extends into the groove 26g, so that a protected sealed connection is obtained between the upper end 4a of the container 4 and the insertion portion IP extended by the Flange 106. Here, the inner skirt 26a extends from the radial portion 26f which defines the sectional transition, to an annular end placed lower than the first annular contact zone 27.
FIG. 5 shows a group of four assembly pieces 11, 17, 26 and S (here without counting the optional cap 16), making it possible to wrap the metering pump 7. The pusher member 11 is formed of a rigid piece and slides while being guided in the pump body 7c. The tubular wall 11b can also optionally be guided angularly by the outer guide surface 18b, cylindrical or of another adapted form, defined by the annular connection 17. The annular connection 17, preferably formed of a piece, here has a sleeve upper 18 which defines the outer guide surface 18b and an inner surface 18a (this internal surface is here cylindrical and relatively narrow but according to alternatives, the annular connector 17 may have a different configuration, for example with a function of retaining the push member 11 to make it indémontable).
The body 7c of the pump 7 defines the insertion portion 12 which is inserted into the receiver assembly formed by the sealing member S and the holding member 26. While the collar 21 may be in axial contact on the top of the duct L, the insertion portion 12 defines for example a radial sealing contact against the conduit L.
A throat E which defines an outlet of the duct L (on the side of the volume V) can form an annular bearing surface for a shoulder 12a of the insertion portion 12 which is formed near the inlet 7a. The annular lip 23, here conical, completes this constriction E to seal with the bottom of the pump 7.
As shown in Figures 1 and 3 in particular, the inner surface 18a allows the annular connector 17 to be positioned around the upper end portion 26d, and more generally around the dosing assembly 15, before the engagement of the annular connection 17 on the body 2. The annular connector 17 may not tighten the receiver assembly 26, S or the ring 24, so that a rotational force on the annular connector 17 (relative rotation about the longitudinal axis X with respect to the tank part lb) will not be taken up by these internal parts.
The annular connection 17 is for example positioned by exerting a simple axial support on the radial portion 26f, without centering function. Indeed, the alignment between the container 4 and the head lb is formed in the contact zone between the flared inner face 104 (typically forming a conical sealing surface) and the sealing element S. The configuration of the endpiece 6, including in particular the holding part 26 which covers the closing element S, makes it possible to release this contact zone from any parasitic stress likely to affect the uniform distribution of the radial compression of the closure element S on the conical bearing of the container 4.
In the example of FIGS. 3 and 5, it can be seen that the annular connection 17 has a peripheral portion which extends longitudinally annularly from the outer edge 20a of the radial portion 20, forming an outer skirt 19 which forms a part of the outer covering of the device 1. A transition portion 190, annular and extending from the outer edge 20b to an annular outer shoulder, makes it possible to connect the skirt 19 to the radial portion 20. A surface of 19a fastener for the cap 16, for example in the form of a peripheral groove, is defined on the outer side of the transition portion 190. It can be seen in Figure 3 internal ribs 161, 162 of the cap 16 forming organs engagement with the attachment surface 19a. The attachment surface 19a can define, for example, a peripheral groove in which a bead of the cap 16 engages or point projections defined by the internal ribs 161, 162.
It is understood that the metering pump 7 is in a central position relative to the annular connection 17, without any contact between the body 7c of the pump 7 or the rod 11a and the annular connection 17. The holding part 26 forms an intermediate layer, which can limit the transmission of forces caused by external shocks and thus play a protective role for the functional components such as the container 4, the sealing element S or the dosing pump 7.
To maintain the annular connection 17 integral with the body 2, there is provided an inner face 19b of the assembly, the inner side of the skirt 19. The inner face 19b assembly is connected to an annular edge 2c of the body 2 located in a annular upper face 40 and / or on the outside of the side wall 2b (close to the annular edge 2c).
In the example illustrated in FIGS. 3 and 7-8, the body 2 has an annular upper face 40 (whose perimeter is here non-circular) from which extends an annular projection 41 to a support edge 42 The inner assembly face 19b is positioned around the annular projection and the skirt 19 rests on the outer shoulder 43 defined by the annular upper face 40 around the annular projection 41. The ring 24 can also come into contact with the annular projection 41. the bearing edge 42 and engage, by its peripheral face S2 against the projection 41. Here the contact zone with the container 4 defined by the ring 24 is decomposed into an axial annular contact (from above, in a contact plane) and a radial annular contact typically cylindrical (from the inside), as the contact zone defined by the container 4 vis-à-vis the sealing element S.
To avoid at most a displacement of the vessel 4 with circular section relative to the body 2 (whose section is typically non-circular), it is possible to provide on the annular projection 41: - at least a first retention relief RI, on the inner face in contact with the skirt 25 of the ring 24 (this or these retaining reliefs RI are in particular advantageous to perform the pre-assembly of the lower tank part shown in Figures 1-2); and at least one second retaining relief R2 on the outer face in contact with the skirt 19 (this or these retaining reliefs R2 are in particular advantageous for obtaining a strong final assembly between the two subassemblies shown in FIG. 2) .
In the assembled state of the head 1b on the reservoir part 1a, as shown in FIG. 3, the first relief RI (here forming a peripheral groove) and the support edge 42 form orientation stops B1, B30 different, and typically opposite, for axially locking the ring 24 relative to the body 2.
Similarly, the second relief R2 (here forming an annular relief projecting outwards) and the outer shoulder 43 form stops B2, B43 of different orientation, and preferably opposite, for axially locking the annular connection 17 by relative to the body 2. With the reliefs RI and R2 and the abutments mentioned above, it is permitted to sandwich the annular edge 2c, between the ring 24 and the annular fitting 17. The annular connection 17 thus remains integral with the reservoir portion during the use of the device 1, which makes it possible to use this annular fitting 17 as a support for a cap 16. In addition, the skirt 19 of the annular fitting 17 can extend axially the external face of the body 2 with a perimeter of identical format and length (with surface continuity). The anchoring of the annular coupling 17 with respect to the body 2 may make it possible to complete, or optionally to eliminate, the retention of the holding piece 26 by the ring 24. However, as illustrated in FIG. 6, it is preferable that the ring 24 it ensures by itself the axial abutment function for the container 4. The axial retention function by the reliefs 240 corresponds to a temporary retention of the container 4 in the body 2 (retained during handling operations in the production cycle, before the final assembly). To avoid structurally altering the upper relief of a pair of reliefs 240 during assembly operations, it may have a bevelled upper face 240a. A tapered upper face may also be provided for the retaining relief or reliefs 262 which prevent the pump 7 from being withdrawn from the receiver assembly 26, S.
When the body 2 and the annular connection 17 have a non-circular section in correspondence, a guiding and centering effect of the annular connection 17 is allowed by the annular projection 41. This may optionally extend in the longitudinal extension of the face internal of the body 2, so that the skirt 25, of cylindrical size, can extend lower than the projection 41. This stiffens the attachment with the body 2. It is understood that the assembly shown is of the indémontable type.
It may be noted that the peripheral portion of the annular connector 17 covers the ring 24. While the body 2 defines a first covering periphery, the head 1b comprising the annular connector 17 defines a second periphery of covering which can axially extend the first periphery, preferably with a continuity of section between the reservoir portion 1a and the head 1b. Here, it is understood that the body 2, the annular connection 17 and the cap 16 give the device 1 its outer shape, as can be seen in FIGS. 1 and 9.
In this nonlimiting example, the ring 24 does not extend radially beyond the annular projection 41. The radial portion PR may cover all or part of the support edge 42 without interfering with the skirt 19, and more generally without be part of the visible periphery of the device 1. In variants of less preferably, the annular connector 17 may be designed without the skirt 19 and be fixed on the ring 24 while covering from above the interconnection zone between the assembly receiver 26, S and the ring 24.
In options without the annular connection 17 or skirt 19 for such an annular connection 17, the cap 16 can engage the body 2. In this case, it can also be provided that the ring 24 is not visible, at least when the cap 16 is engaged on the body 2.
Referring to Figure 7, in the preferred case of a circular section of the container 4, the filling opening 0 has a diameter D2 which may be substantially identical to the diameter DI of the container 4 on the side of its lower end 4c, preferably less than Dl, and preferably at least 90%, or even 98% or 100% of Dl. The use of a container 4 without a neck makes it possible not to slow down the filling operation. The diameter of the filling opening O is typically greater than 15 mm and is generally greater than half the diameter D or smaller similar dimension (width in the case of a rectangle as illustrated in Figure 8) representative of the outer periphery of the 2. More generally, the filling opening 0 may have a diameter at least equal to 75% of the diameter of the opening 300.
The body 2 and the container 4 can each be made in one piece. The side wall 2b of the body 2, tubular, may have a constant cross section as in the case of Figures 1 and 7 or comprise at least one bulge 60 in an intermediate portion as in the case of Figure 9. The shape of the section may also vary (eg with an oval section only at a bulge). More generally, the body 2 may have any type of geometry with a circumference adapted to the gripping and which exceeds the maximum circumference of the container 4, so as to avoid radial contact between the container 4 and the side wall 2b. It is also understood that the ring 24 closes the upper opening 13 of the body 2 without interfering with the filling opening O.
With reference in particular to FIGS. 1 and 7, the bottom 2a of the body 2 may comprise a pressure equalizing orifice 2d which opens out internally, either in a lower central zone without product 5, located directly above the container 4, or in a peripheral volume VP surrounding the container 4. More generally, an air intake system may be formed in any suitable shape on the bottom side 2a, preferably by maintaining a distance from the side wall 2b. The support base B may correspond to at least one lower bearing surface and a base plane P of the body 2 is defined by the lower bearing surface. The pressure balancing orifice 2d may be offset relative to the lower bearing surface, so as to extend backward relative to the base plane P, which limits the risk of accidentally plugging this orifice 2d. The orifice 2d may alternatively be provided in or between the annular connection 17 and the ring 24. Such a positioning elsewhere than on the body 2 can facilitate and / or improve the design of the body 2 (for example by molding). The overall height of the wall forming the bottom 2 can be particularly reduced, with an upper face 2e of the bottom 2a which is flat while joining the side wall 2b. The bottom 2a may thus have a height h less than 2 or 3 mm.
When the body 2 is transparent, the container 4 can be seen. In this case, the container 4 may typically have a cylindrical or slightly tapered shape towards the opening 13 and a piston 29 defines the sealed and movable wall P4. This is considered more aesthetic than a flexible pouch or similar container 4 with a sealed and movable wall P4 which retracts due to the flexibility of the material used. Of course, the option with a piston 29 can be used with any dressing category, provided that the body 2 does not present shrinkage or narrowing section limiting the passage section to dimensions smaller than that of the wall 4b.
As illustrated in Figures 1, 7 and 9, the piston 29 has for example a circular section that ensures a good seal. It is then understood that the section of the rigid guide wall 4b is circular. Under the piston 29, the bottom 2a can optionally be removed or the orifice or ports 2d can be used to maintain at a sufficient level the pressure exerted on a lower face 29a of the piston 29 opposite the filling opening 0 in product 5.
The piston 29 ensures on the one hand a tight separation and on the other hand maintains an identical pressure between the fluid product 5 contained in the reservoir and the air of the peripheral volume VP. In addition, the piston 29 may have a profile in correspondence with the lower surface 15a defined by the dosing assembly 15 which extends inside the container 4, as can be seen in FIG. 1. In this nonlimiting example , the piston 29 defines an internal cavity 29b, positioned centrally, to receive a projecting pipe end forming the inlet 7a when the piston 29 is raised due to the consumption of the product 5. This allows to approach a total restitution of product (e.g., about 95% or more of the mass of product returned), with typically a suppression or a large reduction in dead volume. The dynamic seal achieved between the piston 29 and the side wall 4b can be achieved with a low friction force of the piston 29, particularly when the product 5 has a high viscosity. Indeed, the force of the user pressing the pusher member 11 must overcome the return spring R, the viscosity of the cosmetic product and the friction of the piston 29. In order to reduce the friction of the piston 29 and minimize the effort to provide for the user, it takes a very high geometric accuracy of the wall 4b of the container 4 (and piston 29) if it is desired to ensure a given friction force level of the piston while obtaining the seal, which prohibits give any decorative function to the container 4 (because the decorative functions typically involve heats or mechanical deformations that alter the integrity of the wall 4b). A slightly conical geometry of the wall 4b, with a widening towards the lower end 4c can participate in facilitating the insertion of the piston 29 without damage and obtain a satisfactory seal. The insertion of the piston 29 during assembly can be done advantageously from below, the side of the lower end 4c, which avoids having to go through the piston 29 the entire height of the container 4 to achieve its Filling position, clearly visible in Figure 1. With a mounting from below, the piston slides in the container 4 a short distance and it is not damaged by a friction on almost the length of the container 4. On thus reduces the risk of damaging the piston 29 (good dynamic sealing during the use of the device 1).
In an alternative embodiment (not shown), the impermeable and movable wall P4 is defined by a flexible wall or a flexible bag which can retract and / or deform to reduce the internal volume of the container 4. The wall P4 extends preferably opposite the end 4a which is rigid and which may be identical to that shown in Figure 3. With this type of container 4, we can provide a pressure equalizing orifice 2d when the body 2 has a bottom 2a. The body 2 may be of opaque material so as not to make visible the folded and / or contracted state of the pouch or flexible portion of the container 4 as consumption of the product 5 increases.
According to one option, at least the portion of the container 4 which forms the bag is of flexible and waterproof material (and offering a good level of neutrality compared to cosmetic or pharmaceutical formulas), for example polyethylene.
The sealed and movable wall P4, in the form of a pocket which moves by contraction effect, can be advantageous in particular in the two following cases: to offer a very high level of protection to the product contained in the container 4, especially if it is sensitive to oxidation; in this case, the pocket is defined by a laminate complex comprising an oxygen barrier material such as an aluminum or EVOH layer in order to offer better protection than a piston container 4 (high protection because the thus, the natural permeability of the polyolefins used in the thicknesses of the order of one millimeter and the fact that the risk of infiltration between the piston 29 and the fixed wall is eliminated is eliminated. - When the outer body 2 is of a shape very far from a cylinder because the pocket allows to marry the inner shape of the body 2 and thus minimize the lost space; this optimizes the ratio between the volume contained and the overall size of the device 1.
To maintain an interconnection resistant to shocks, it is preferable that the container 4, whose wall P4 is movable or flexible and retractable, is inserted through the opening 300 of the ring 24 from above, by pressing axially on the internal rim RB. Alternatively, a mounting of the container 4 is made with insertion of the rigid upper end 4a, from below the ring 24, for example by using a bayonet type connection in the inner surface 241, which opposes at the depression of the container 4 during assembly of the head lb on the reservoir part la.
Preferably, the ring 24 has a skirt 25 which internally covers the upper end of the inner face fl of the side wall 2b of the body 2. The ring 24 may have an annular outer rim 30 which covers the annular edge 2c. In this case, the ring 24 has for example an annular shoulder 24a adjacent to the skirt 25 on which is engaged the annular edge 2c (by the support edge 42). The shoulder 24a may be narrow so that the annular outer flange 30 does not extend radially outwardly relative to the outer face f2 of the side wall.
The ring 24 has a radial extension which varies to fit the periphery of the annular edge 2c, as clearly visible in Figures 7 and 8 for example. The radial extension is defined by the radial portion PR, disk-shaped and substantially planar, which is delimited internally by the inner rim RB and externally by the outer rim 30. The skirt 25, which extends downwards from the lower face of the portion PR, has a minimum height typically greater than that of the annular projection 41.
The projecting upper portion PSS of the ring 24, which extends longitudinally towards the head 1b from the upper face DP of the radial portion PR, has a minimum height which is optionally lower than the height of the skirt 25 in the illustrated option. in the figures, with in this non-limiting option reductions in height in the angular sector or sectors for which the radial extension of the ring 24 is shorter. Two opposite zones Z1, Z2 of the projecting upper part PSS are thus locally shorter in the case of a section of the rectangular or oval body 2. This allows the annular connector 17 to have a transition portion 190 of the same size as the outer skirt 19 and which ensures optimal guiding of the cap 16.
With reference to FIGS. 2 and 6, it can be seen that the combination of a ring 24 and a closure element S which passes through the opening 300 of the ring in order to close off the filling opening O makes it possible to locate the connection contacts in the same annular space 65 narrow.
Indeed, the upper end 4a of the container 4 occupies the lower part of this annular space 65 and is housed under the flange 106, while the lower portion 26b of the holding member 26 covers the upper end 4a externally in the this annular space 65. The flange 26c, visible in Figure 4, engages between the reliefs 240 which are superimposed on the attachment zone of the annular bead 400. Under each pair of reliefs 240, there is in fact at least one bead receiving groove 400.
The upper portion PPS of the ring 24 is here formed by a ring portion 70 which has two notches 70a, 70b or slots. The reliefs 240 are formed on the inside in the spaced tabs 71, 72 defined between the notches 70a, 70b. Of course, the ring 24 may have a different number of reliefs 240 and / or a different distribution of these reliefs 240 on the inner face SI. It is understood that the reliefs 240 are radially less close to the central axis X than the inner edge RB in the example shown, so as not to interfere with the passage of the container 4 through the opening 300.
For the assembly of the tank part shown at the bottom of Figure 2, the container 4 is inserted into the internal volume of the body 2 by supporting it by the ring 24 (itself provisionally clipped into the body 2 via the ergot, bead or similar reliefs which form the abutment Bl). To obtain the tank part alone, it is thus understood that a temporary, non-rigid assembly is made to hold the parts in place until the final assembly. Figure 7 illustrates an example of mounting the tank part la when the body 2 has an oval section periphery. A triangular periphery with rounded or rectangular angles with rounded corners (see FIG. 8) are alternative embodiments which are cited here among a plurality of variants for external cladding.
For the assembly of the head 1b shown at the top of FIG. 2, it is possible to combine the receiver assembly 26, 5 or similar stationary part without a moving part and the metering pump 7, which is here surmounted by an actuating portion 10. movable to move the rod 11a and thus control the distribution of the fluid product 5. Seen from below, the receiver assembly 26, S and the cap 16 envelop the metering pump 7, except for the narrow inlet 7a which the level defined by the lower face (defined in this example by the radial portion PR) of the sealing element S is not more than 1 cm downwards. The final assembly step, after the filling of the product 5 , is performed by connecting the sealing member S to the upper end 4a of the container 4, with the particular feature of not bringing the metering assembly 15 into contact with the body 2 which defines the periphery of the part to the tank.
While the body 2 (and possibly the ring 24 in lower preference options) can define a dressing of the reservoir part of the device 1, the annular connector 17 and the cap 16 can define a dressing of the head lb of the device 1.
In order to be able to produce different skins without complicating the assembly steps, the connection between the tank part 1a and the head 1b is advantageously made between the sealing element S and the first end 4a of the container 4. The connection which allows to establish a continuity between these elements of covering is thus separated and independent of the sealed connection zone to close the filling opening 0.
The device 1 can be compact and is well suited for dispensing the same precise doses of liquid or viscous product. The device is typically in the form of a vial and designed especially for cosmetic applications and other applications requiring a high degree of personalization of the vial.
The device 1 is particularly suited to a metering pump 7 of the "airless" type which reduces the risk of contamination while allowing the almost total evacuation of the product 5. It is also understood that the device 1 has a very limited number of parts mobile or flexible, so it is particularly robust and remains effective after a large number of uses. The integrity around the container 4 and the pump 7 is maintained despite possible shocks, which ensures the seal.
In addition, there is no limitation in the possibilities of external format and cladding of the device 1, by keeping the functional parts at a distance from the body 2 and other external elements 16, 17 of the device 1. Thus, the body 2 may have a non-circular section and particularly well adapted to the transport and storage requirements of the devices 1. For example, the size of the body 2 may be adapted to reduce or eliminate dead spaces between the bottles and to have a wide range choice of product differentiation options on the shelves.
In the illustrated examples, it is understood that the container 4 and the dispensing head 1 can form an integral subassembly that can be installed (in one piece) in a body 2 function dressing. The user can optionally separate this subset of the outer skin to reload device 1 (replace the empty cartridge with a full one). This makes it possible to reuse the cladding body 2 which can be finely elaborated and relatively expensive, and thus to prolong its duration of use beyond the period of use of the product 5 contained in the container 4.
In such a case it may be advantageous that the body 2 has no bottom, or a bottom 2a that can be removed.
In alternative embodiments, the body 2 does not necessarily define a base B situated lower than the container 4 and there is no bottom 2a.
Thus, with reference to FIG. 13, the body 2 may have a similar ring or annular shape significantly shorter than the height of the container 4. The container 4 extends into the interior volume defined by the annular body 2 and projecting downwards relative to the lower edge of the body 2. With such partial peripheral dressing, it is allowed to concentrate value added on a piece of dimension (and therefore cost) reduced. The attachment of the body 2 can be permanent or removable. In the case illustrated, the mounting mode may be identical or similar to that shown in Figures 3 and 6. Of course, the body 2 may be extended upwardly in the manner of the embodiment described in Figure 12 , to further wrap the tip 6.
In another variant (not illustrated), the body 2 has no bottom 2a and laterally envelopes, at least in part, a subassembly (container 4 and endpiece 6) configured so that the actuation is done opposite the the distribution head lb. It is then understood that the pusher member 11 is removed and the actuation zone is opposite the head lb (at the bottom of the container or on a part which is connected thereto).
It should be obvious to those skilled in the art that the present invention allows embodiments in many other specific forms without departing from the scope of the invention as claimed.
Thus, although the figures show a container 4 made in one piece, it is also possible to insert in the body 2 a container with a removable bottom. Such a bottom may for example allow to mount the wall P4 by the bottom and play a role of covering and protecting the wall P4. Similarly, the holding part 26 can be replaced by an equivalent assembly of at least two parts having both an axial thrust effect on the sealing element S and the holding of the pump 7.

权利要求:
Claims (25)
[1" id="c-fr-0001]
1. Device (1) for packaging and dispensing a fluid product (5), in particular in the form of a bottle, comprising: - a body (2; 100) which is hollow and provided with a bottom or a lower edge; - a tank part (la) which comprises a container (4) defining the reservoir and extending at least partly in an interior volume defined by the body (2; 100), the container (4) having a filling opening (O) on the side of an upper end (4a) of tubular shape; - a head (1b) which comprises a metering assembly (15) of the type without air intake, the metering assembly (15) comprising a metering pump (7), a closure member (5) which belongs to a stationary portion of the dosing assembly and an actuating portion (10) movable to allow dispensing of the fluid product (5), the plugging member (S) extending around the metering pump (7) and forming a lower face of the head (lb); and - a connection interface, formed in the reservoir portion (1a) and separate from the body (2; 100), for sealingly connecting the dosing assembly (15) of the head (1b) to the reservoir of the tank portion (1a), the metering pump (7) having an inlet (7a) extending at one end of the tank opposite the bottom or bottom edge in a mounted condition of the head (1b) on the reservoir portion ( the) ; characterized in that the reservoir portion (la) further comprises a ring-shaped ring (24) distinct from the body (2; 100) and the container (4), adapted to make the body (2; container (4) extending between an inner surface (SI) engaged against the upper end (4a) of the container (4) and a peripheral surface (S2) for attachment to the body (2; 100), and in that the connection interface comprises the upper end (4a) of the container (4) which is adapted to engage with the sealing member (S) by defining an annular contact sealing container -capping element, the container (4) comprising at least one wall (P4) sealed and movable towards said inlet (7a) to compensate for a depression in the tank.
[2" id="c-fr-0002]
2. Packaging and dispensing device according to claim 1, wherein the closure element (S) comprises an insertable sealing part (105) in radial annular sealing contact with an inner face (104) of the upper end ( 4a), so that the upper end (4a) and the closure member (S) are sealingly connected.
[3" id="c-fr-0003]
The packaging and dispensing device according to claim 2, wherein the insertable sealing portion (105) comprises a cylindrical insertion portion (IP) inserted through the upper end (4a) of the container (4). ) and through an opening (300) of the ring (24) and coaxial with a conduit (L) central to accommodate and support the metering pump (7).
[4" id="c-fr-0004]
The packaging and dispensing device according to claim 2 or 3, wherein the stationary portion comprises a holding piece (26) which is stiffer than the sealing member (S) and which extends annularly around the capping member (S), the holding piece (26) being configured to engage the ring (24), so that the capping member (S) is held tight between the upper end (4a ) of the container (4) and the holding part (26).
[5" id="c-fr-0005]
The packaging and dispensing device according to claim 4, wherein the sealing element (S), preferably made in one piece, comprises a flange (106) adjacent to the insertable sealing portion (105), the flange (106) being clamped between the retaining piece (26) and an axial bearing edge (38) of the upper end (4a) adjacent to the inner face (104).
[6" id="c-fr-0006]
6. Packaging and dispensing device according to claim 4 or 5, wherein the holding piece (26) is essentially a first rigid material, preferably selected from the following families of materials: polyolefins, styrenics, copolyesters, polyacetals, polycarbonates , polyamides, while the closure member (S) is essentially a second material more flexible than the first material, preferably low density polyethylene or an elastomer.
[7" id="c-fr-0007]
7. A packaging and dispensing device according to any one of the preceding claims, wherein the body (2; 100) is made in one piece and has an upper opening (13), the ring (24) closing the opening upper (13) without interfering with the filling opening (O).
[8" id="c-fr-0008]
8. Packaging and dispensing device according to any one of the preceding claims, wherein the container (4) is of the type without neck.
[9" id="c-fr-0009]
Packaging and dispensing device according to one of the preceding claims, wherein the container (4) has a circular section, at least on the upper end (4a) side, the ring (24) defining a circular opening. (300) for inserting the container (4) into an interior volume of the body (2).
[10" id="c-fr-0010]
10. Packaging and dispensing device according to any one of the preceding claims, wherein the body (2) defines a first covering periphery, the head (Ib) having an annular connection (17) integral with said stationary part and which surrounds the dosing assembly (15) to define a second skin periphery.
[11" id="c-fr-0011]
11. Packaging and dispensing device according to claim 10, wherein the head (1) further comprises a cap (16), removable, attaching to the annular fitting (17) in a storage configuration, the body (2). the annular fitting (17) and the cap (16) giving the device (1) its outer shape in the storage configuration.
[12" id="c-fr-0012]
12. Packaging and dispensing device according to claim 10 or 11, wherein the body (2) has an annular upper face (40) from which extends an annular projection (41) to a bearing edge (42). ), an outer shoulder (43) being defined by the annular upper face (40) around the annular projection, the annular joint (17) extending around the annular projection (41) and bearing against the shoulder external (43).
[13" id="c-fr-0013]
13. A packaging and dispensing device according to claim 12, wherein the annular projection (41) has: at least one first relief relief (RI) on an inner face; and - at least one second retaining relief (R2) on an outer face, knowing that in a mounted state of the head (1b) on the reservoir part (1a), said first relief (RI) and the support edge (42) form stops (B1, B30) of different orientation, and preferably opposite, for axially locking the ring (24) relative to the body (2), while said second relief (R2) and the outer shoulder (43) form stops (B2, B43) of different orientation, and preferably opposite, for axially locking the annular connection (17) relative to the body (2).
[14" id="c-fr-0014]
14. Packaging and dispensing device according to any one of the preceding claims, in which the body (2) comprises a bottom (2a; 200) which comprises: - at least one lower bearing surface which defines a base plane ( P) of the body; and a pressure balancing port (2d) which is offset from the lower bearing surface (B) so as to extend back from the base plane (P).
[15" id="c-fr-0015]
The packaging and dispensing device according to any one of claims 1 to 9, wherein the body (100) comprises a one-piece tube (102) which defines a single side wrapping periphery around the container (4) and the dosing unit (15).
[16" id="c-fr-0016]
A packaging and dispensing device according to any one of the preceding claims, wherein the stationary portion comprises a holding piece (26) which extends annularly around the closure member (S) and has a portion lower (26b) in contact with the ring (24), and preferably in engagement with the inner surface (SI) of the ring (24) to be axially integral with the ring, the retaining piece (26) extending longitudinally from the lower portion (26b) to an upper end portion (26d) engaged with an outer collar (21) formed on the metering pump (7).
[17" id="c-fr-0017]
17. Packaging and dispensing device according to claim 16, wherein the closure element (S) defines with the retaining piece (26) an annular groove (50) belonging to the head (1b), the upper end ( 4a) defining an axial bearing edge (38) inserted into the annular groove (50) in a mounted state of the head (1b) on the reservoir portion (1a).
[18" id="c-fr-0018]
18. Device for packaging and dispensing according to claim 16 or 17, wherein the holding piece (26) has an inner skirt (26a) which defines with said lower portion (26b) a specific annular groove (26g) opposite of the upper end portion (26d), the closure member (S) and the upper end (4a) of the container (4) being in annular sealing contact with each other within the defined annular groove (26g) in a mounted state of the head (1b) on the reservoir portion (1a).
[19" id="c-fr-0019]
A packaging and dispensing device according to any one of the preceding claims, wherein the inner surface (SI) of the ring (24) has a preferably annular inner rim (RB) in axial contact from below with a collar or collar portions (400) of the container (4), on the side of said upper end (4a).
[20" id="c-fr-0020]
20. A packaging and dispensing device according to any one of the preceding claims, wherein the ring (24) comprises a substantially planar radial portion (PR) which extends between an inner rim (RB) and an outer rim (30). annular, the inner rim (RB) defining an opening (300) of the ring (24) which is preferably located above an interior volume of the body (2).
[21" id="c-fr-0021]
21. Packaging and dispensing device according to claim 20, wherein the ring (24) further comprises: a continuous or segmented skirt (25) extending longitudinally towards the bottom (2a) from a lower face of the portion; radial (PR), the peripheral surface (S 2) for attachment to the body being defined by the skirt (25) and by the underside of the inner rim (RB); and a projecting upper part (PSS) extending longitudinally about a longitudinal axis (X) of the container (4) from an upper face (DP) of the radial portion (PR), internal reliefs (240) being formed on the protruding upper portion (PSS), projecting radially inwardly and facing the upper end (4a) of the container (4), to engage with a portion, preferably a flange (26c) of the dosing assembly (15).
[22" id="c-fr-0022]
22. Device for packaging and dispensing according to any one of claims 1 to 21, wherein the container (4) is substantially cylindrical and extends about a longitudinal axis (X), said wall (P4) waterproof and movable being defined by a piston (29) movable in translation along the longitudinal axis (X).
[23" id="c-fr-0023]
23. A packaging and dispensing device according to any one of claims 1 to 21, wherein the container (4) has a side wall (4b) adapted to guide a piston (29), the side wall (4b) having a section circular widening towards a lower end (4c) of the container (4) and extending to an opening for mounting the piston (29) in the container.
[24" id="c-fr-0024]
24. A packaging and dispensing device according to any one of claims 1 to 21, wherein said sealed wall and mobile (P4) is defined by a retractable flexible portion, the upper end (4a) of the container (4) forming a rigid connection.
[25" id="c-fr-0025]
25. A method of assembly to obtain a device (1) for packaging and dispensing as defined in any one of the preceding claims from a reservoir part (la) and a head (lb), knowing that the fluid product (5) is introduced before a final step of mounting the head (1b) on the reservoir part (1a), in a container (4) belonging to the reservoir part (1a) through an opening filling device (0), the method comprising the steps consisting essentially of: - combining, in a metering assembly (15) of the type without air inlet: i) a stationary part provided with a closure element (S) which forms a lower face of the head (1b), and ii) a metering pump (7) connected to a movable operating portion (10) and intended to control the distribution of the fluid product (5) in response to an action on the actuating portion, so that the sealing member (S) surrounds the metering pump ( 7); - inserting the container (4) through an opening (300) defined by an annular ring (24) and mounting the ring (24) in a body (2; 100) which is hollow and defines a periphery of wrapping around the reservoir portion (1a), so that all or part of the container (4) is held in the interior volume of the body (2; 100) while the ring (24) extends around the opening filling (O) opposite a bottom or lower edge of the body (2; 100); knowing that the body (2; 100) and the container (4) are secured to one another: i) by engaging against the body (2; 100) a peripheral surface (S2) for attachment to the body (2 100) formed at the periphery of the ring (24); and ii) engaging an inner surface (SI) of the ring (24) against the upper end (4a) of the container (4); the container (4) defining said filling opening (0) and comprising at least one wall (P4) sealed and movable towards said inlet (7a) to compensate for a depression in the tank; and wherein the final step of mounting is carried out by connecting the sealing member (S) to the upper end (4a) of the container (4), sealing the filling aperture (0) in a sealed manner. defining an annular sealing contact directly between the container (4) and the sealing member (S).

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同族专利:

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公开号 | 公开日

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FR3042181B1|2020-02-28|

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WO2017060631A1|2017-04-13|

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KR20180069003A|2018-06-22|

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US20200197965A1|2020-06-25|

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US10864539B2|2020-12-15|

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US10717098B2|2020-07-21|

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US20190060929A1|2019-02-28|

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法律状态:
2016-08-29| PLFP| Fee payment|Year of fee payment: 2 |

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2017-04-14| PLSC| Publication of the preliminary search report|Effective date: 20170414 |

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2017-08-30| PLFP| Fee payment|Year of fee payment: 3 |

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2018-10-30| PLFP| Fee payment|Year of fee payment: 4 |

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2019-08-29| PLFP| Fee payment|Year of fee payment: 5 |

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2020-08-28| PLFP| Fee payment|Year of fee payment: 6 |

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2020-12-11| TP| Transmission of property|Owner name: POCHET, FR Effective date: 20201102 |

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2021-10-29| PLFP| Fee payment|Year of fee payment: 7 |

优先权:

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申请号 | 申请日 | 专利标题

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FR1559595|2015-10-08|

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FR1559595A|FR3042181B1|2015-10-08|2015-10-08|DEVICE FOR PACKAGING AND DISPENSING BY DOSE OF A FLUID PRODUCT|FR1559595A| FR3042181B1|2015-10-08|2015-10-08|DEVICE FOR PACKAGING AND DISPENSING BY DOSE OF A FLUID PRODUCT|

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