EP1453738B1 - Sterile system for dispensing a product contained in a container in particular a soft tube - Google Patents

Sterile system for dispensing a product contained in a container in particular a soft tube Download PDF

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Publication number
EP1453738B1
EP1453738B1 EP02804594A EP02804594A EP1453738B1 EP 1453738 B1 EP1453738 B1 EP 1453738B1 EP 02804594 A EP02804594 A EP 02804594A EP 02804594 A EP02804594 A EP 02804594A EP 1453738 B1 EP1453738 B1 EP 1453738B1
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EP
European Patent Office
Prior art keywords
delivery valve
tube
cap
cylindrical
valve
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP02804594A
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German (de)
French (fr)
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EP1453738A2 (en
Inventor
Philippe Lautre
Pascal Hennemann
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Promens SA
Original Assignee
Plastohm SA
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Filing date
Publication date
Application filed by Plastohm SA filed Critical Plastohm SA
Publication of EP1453738A2 publication Critical patent/EP1453738A2/en
Application granted granted Critical
Publication of EP1453738B1 publication Critical patent/EP1453738B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D47/00—Closures with filling and discharging, or with discharging, devices
    • B65D47/04—Closures with discharging devices other than pumps
    • B65D47/20—Closures with discharging devices other than pumps comprising hand-operated members for controlling discharge
    • B65D47/2018—Closures with discharging devices other than pumps comprising hand-operated members for controlling discharge comprising a valve or like element which is opened or closed by deformation of the container or closure
    • B65D47/2056—Closures with discharging devices other than pumps comprising hand-operated members for controlling discharge comprising a valve or like element which is opened or closed by deformation of the container or closure lift valve type
    • B65D47/2081—Closures with discharging devices other than pumps comprising hand-operated members for controlling discharge comprising a valve or like element which is opened or closed by deformation of the container or closure lift valve type in which the deformation raises or lowers the valve port
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B11/00—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use
    • B05B11/0005—Components or details
    • B05B11/0037—Containers
    • B05B11/0039—Containers associated with means for compensating the pressure difference between the ambient pressure and the pressure inside the container, e.g. pressure relief means
    • B05B11/0044—Containers associated with means for compensating the pressure difference between the ambient pressure and the pressure inside the container, e.g. pressure relief means compensating underpressure by ingress of atmospheric air into the container, i.e. with venting means
    • B05B11/00444—Containers associated with means for compensating the pressure difference between the ambient pressure and the pressure inside the container, e.g. pressure relief means compensating underpressure by ingress of atmospheric air into the container, i.e. with venting means with provision for filtering or cleaning the air flow drawn into the container

Definitions

  • the present invention relates to a dispensing and closure system intended to be disposed at the end of a container, in particular a flexible tube containing a liquid or pasty product which is evacuated by pressure on said tube.
  • liquid or pasty such as creams, gels, emulsions, an anti-bacterial preservative.
  • the anti-bacterial action takes place only in close contact with the surface of the container and not at heart.
  • the present invention proposes to remedy all these drawbacks, ie at the level of the pump (airless), at the level of the protective mechanism of the head.
  • the invention relates to a distribution and closure system intended to be disposed at the end an elastically deformable container, in particular a flexible tube comprising a liquid or pasty product, which is evacuated by pressure on said tube, this system consisting of a valve comprising two concentric elements, one of which forms a cylindrical valve mobile having at its upper central part an opening defining a peripheral seat and the other of which forms a cylindrical body derived from a connecting plate with the tube and whose closed upper end of said cylindrical body is capable of cooperating with the closing with the seat of said movable valve, the two elements defining between them an annular space through which the product passes, during a manual pressure exerted on the tube, consequently causing a direct action of the product on the valve acting on it in opening, against an elastic return member, so as to escape the product of the tube, when n presses on it and automatically close the opening when released, without possible return to the inside of the product already released.
  • a valve comprising two concentric elements, one of which forms a cylindrical valve mobile having at
  • the present invention also relates to the features which will emerge during the following description, which should be considered in isolation or in all their possible technical combinations.
  • the dispensing system 1 generally designated in the figures is disposed at the end of a container 2, in this case a flexible tube or bottle containing a pasty product which is evacuated by pressure on said tube 2.
  • the system 1 is constituted by a valve 3 comprising two concentric elements 4, 5, one of which forms a movable cylindrical valve comprising at its central upper part an opening 6 defining a peripheral seat and the other of which 5 forms a cylindrical body coming from a plate 7 connecting to the tube 2 and whose closed upper end 8 of said cylindrical body 5 is able to cooperate with the closure with the seat 6 of said movable valve 4, the two elements 4, 5 defining between them an annular space 9 through which the product 10 passes, during a manual pressure F1, F2 exerted on the tube 2, thereby causing a direct action of the product 10 on the valve 4 acting on it in opening, against an elastic return member 11, characterized in that it comprises a double seal obtained at the closing opening zone of the valve 3 by the combination of a first peripheral lip 29 and a second lip 31 also peripheral device made remote from the first 29, the latter being made on the seat 6 of the movable plate 4 to exert an axial action on a corresponding zone of the end 8 of the cylindrical body 5 of the connecting plate 7
  • opening 6 forming the seat of the movable valve 4 is according to the present embodiment, frustoconical but of course it could be formed by a sphere portion or any other conical or cylindrical shape.
  • the movable cylindrical valve 4 is slidably mounted in an axial direction between the body 5 of the connecting plate 7, which is integral with the end 12 of the tube 2, and a cylindrical cap 13 covering said system. , also integral with the tube 2.
  • Said cover 13 has at its upper part a first cylindrical internal bore 14 open at both ends in which is guided and is slidable a first cylindrical portion 15 of the valve 4 when operating in opening or closing.
  • the movable valve 4 comprises a second cylindrical guide portion 16, concentric with the first 15, made on the periphery of a bottom flange 17, extending from a lower zone of the first cylindrical portion 15 of said valve 4 and coming into contact with a second internal bore 18 of the cover 13, open at its lower part only.
  • the second cylindrical part of the guide 16 of the movable valve 4 comprises an upper lip 19 and a lower lip 20 rubbing against the second bore 18 of the cap 13, in order to ensure sealing during the operation of said valve 4 from the open position to the closed position and vice versa.
  • the wall of the cover 13 defining the second internal bore 18 of the latter extends at its lower part to form a peripheral end edge 21 which cooperates with a raised edge 22 of the plate.
  • link 7. The latter is formed by a flange extending from an upper zone of a cylindrical sleeve 23 coming from said plate 7 at its lower part, which sleeve 23 cooperates firmly with the upper end 12 of the tube 2 that he is wearing.
  • the system 1 coupled to the tube 2 must be an inlutemontable whole to preserve the sterility and the desired sealing.
  • the connecting plate 7 comprises a second raised edge 24 made concentrically between the first peripheral raised edge 22 and the fixed cylindrical body 5 of said connecting plate 7, so as to form a lower stop against the mobile valve 4 acting on the closing.
  • a lower end portion 25 of the first bore 14 of the cover 13 constitutes an upper stop of said valve 4, acting at the opening.
  • the resilient return member 11 of the mobile valve 4 is interposed between an inner part thereof and an inner part of the fixed cover 13.
  • the elastic return member 11 is constituted by a washer 26 from which is derived a plurality of radial arms 27 angularly spaced identically. Said washer 26 is fixedly disposed on an internal shoulder 28 of the cover 13, while the arms 27 bear on the bottom flange 17 of the movable valve 4, so as to return it automatically closing after an opening.
  • the elastic return member 11 may be constituted by a plurality of radial arms 27 spaced angularly at identical angles and obtained by molding with an inner portion of the cover 13, the arms 27 bearing on the collar bottom 17 of the flap mobile. 4, so as to remind it automatically closing after an opening.
  • the elastic return member may consist of different shapes and materials, but it must respond to the resolution of the spring function.
  • a double seal is obtained at the level of the closing opening zone of the valve 3 by the combination of a first peripheral lip 29, made on the seat 6 of the mobile valve 4, in order to exert an axial action on a corresponding zone of the end 8 of the cylindrical body 5 of the connecting plate 7 and a second lip 31 also peripheral, also made from the seat 6 of the valve mobile 4, remote from the first 29, to exert a radial action on an axial portion of said cylindrical body 5 of the connecting plate 7.
  • the lips 29 and 31 constitute a double closure so each is offset in time, so that during closure the residue of material located between the two lips is expelled outwards.
  • the system comprises an air intake device consisting of a tip 32 made at the bottom of the connecting plate 7 and inside which is disposed a porous antibacterial filter (not shown ).
  • the porous filter makes it possible, on the one hand, to admit air outside the hood to the intermediate zone situated between the connecting plate 7 and the valve 4, containing material 10, from which towards the inside of the tube, and on the other hand the prohibition of penetration of bacteria from the outside to the inside and the escape of the product 10 from the inside to the outside.
  • the system may include a closure cover whose inner bearing area comes into compressive contact with the upper end of the valve 3, to lock the opening.
  • This cover which can be hinged or screwed into the closed position, also makes it possible, by virtue of its support zone, to prevent an unexpected movement of translation of the valve 4, which could cause a product outlet 10.
  • the movable valve 4, the connecting plate 7, the cover 13, the elastic member 11, the tube 2, the cover (not shown) are obtained by molding a plastic material.
  • the elastic member 11 it will preferably be obtained by molding a polypropylene with glass fibers or a polyacetal, or any other material having mechanical characteristics to ensure the spring function.
  • the tube 2 it is made in a traditional manner in a material plastic giving it flexibility properties by permanent or elastic deformation.
  • the system which has just been described is sterilizable by gamma and beta radiation.
  • This system consisting of only four pieces, or even three, provides an opening and closing anti-bacterial end, operating in the manner of a non-return valve, opening by the thrust of the product on the piston, to the against the elastic member 11 and having the effect of clearing the opening by creating a peripheral passage following a vertical translation of the valve 4.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Closures For Containers (AREA)
  • Containers And Packaging Bodies Having A Special Means To Remove Contents (AREA)
  • Packages (AREA)
  • Medical Preparation Storing Or Oral Administration Devices (AREA)

Abstract

The invention concerns a dispensing and closure system arranged at the top of a container, in particular a soft tube comprising a liquid or pasty product, which is delivered by pressing on the tube. The invention is characterized in that it consists of a valve comprising two concentric elements, one of which forms a mobile cylindrical delivery valve and the other forms a cylindrical body exiting from a plate linked to the tube. The two elements defined between them an annular gap through which the product passes. When a manual pressure is exerted on the tube, it causes the product to act directly on the delivery valve causing the latter to open, countering an elastic return member, so as to allow the product to escape from the tube, when the pressure is exerted thereon and to automatically close the delivery valve when the pressure is released, preventing the possible return of the product already dispensed from returning inside the tube.

Description

La présente invention concerne un système de distribution et de fermeture destiné a être disposé à l'extrémité d'un récipient, notamment un tube souple contenant un produit liquide ou pâteux dont on provoque l'évacuation par pression sur ledit tube.The present invention relates to a dispensing and closure system intended to be disposed at the end of a container, in particular a flexible tube containing a liquid or pasty product which is evacuated by pressure on said tube.

Dans certains domaines comme en cosmétologie ou en dermatologie, il est indispensable de préserver la stérilité du produit contenu dans le tube ou le flacon.In certain fields such as cosmetology or dermatology, it is essential to preserve the sterility of the product contained in the tube or the bottle.

C'est ainsi qu'il est connu d'introduire dans le produit, qu'il soit liquide ou pâteux, comme par exemple les crèmes, les gels, les émulsions, un conservateur anti-bactérien.Thus it is known to introduce into the product, whether liquid or pasty, such as creams, gels, emulsions, an anti-bacterial preservative.

Ceci permet d'éviter les dégradations du produit par les bactéries qui risqueraient d'affecter l'aspect, la qualité, l'odeur dudit produit, d'où l'intégration d'un conservateur dans la composition chimique du produit.This avoids degradation of the product by bacteria that could affect the appearance, quality, smell of the product, hence the integration of a preservative in the chemical composition of the product.

Néanmoins, ces conservateurs provoquent parfois des allergies dermatologiques.Nevertheless, these preservatives sometimes cause dermatological allergies.

Il est connu de résoudre ce second problème en supprimant ces conservateurs et en protégeant le produit par l'utilisation de systèmes de distribution sans reprise d'air, dit « airless ».It is known to solve this second problem by removing these preservatives and protecting the product by the use of distribution systems without air intake, called "airless".

Il s'agit en fait d'une pompe montée sur un récipient à volume variable par l'intermédiaire d'un piston ou d'une poche actionnés par la différence de pression au fur et à mesure du prélèvement de la matière par la pompe.It is actually a pump mounted on a variable volume container via a piston or pocket operated by the pressure differential as the material is taken by the pump.

Ces dispositifs sont néanmoins très complexes car ils nécessitent la mise en oeuvre d'un nombre élevé de pièces, soit une dizaine environ, qu'il faut créer et assembler.These devices are nevertheless very complex because they require the implementation of a number high number of pieces, about ten, which must be created and assembled.

Sont connus également, notamment par le brevet britannique GB 724 798 , des systèmes par membranes, déformables élastiquement au niveau de la fermeture d'un embout d'extrémité, mais qui présentent l'inconvénient d'une mise au point de l'étanchéité en jouant sur l'élasticité de la matière et les dimensions de l'ouverture.Also known, in particular by the British patent GB 724,798 Membrane systems elastically deformable at the closure of an end piece, but which have the disadvantage of a focus of the seal by adjusting the elasticity of the material and the dimensions of the the opening.

De plus, se pose le problème du produit résiduel constituant un volume mort dans la tête de distribution, qui n'est plus protégée contre les bactéries.In addition, there is the problem of the residual product constituting a dead volume in the dispensing head, which is no longer protected against bacteria.

Pour remédier à cela, il est connu des fermetures d'extrémités telles que valves adaptées sur des embouts de distributeurs de pompe pour des applications pharmaceutiques ou cosmétologiques.To remedy this, it is known end closures such as valves fitted on pump dispenser tips for pharmaceutical or cosmetological applications.

Il est également connu, pour renforcer la protection anti-bactérienne, de mélanger à la matière plastique constituant l'emballage et plus particulièrement la tête de distribution, des ions argent ayant la particularité de ne pas migrer et de provoquer une destruction des bactéries par contact avec ladite surface de matière plastique chargée d'ions argent.It is also known, to enhance the anti-bacterial protection, to mix with the plastic material constituting the packaging and more particularly the dispensing head, silver ions having the particularity of not migrating and causing destruction of bacteria by contact with said plastic surface filled with silver ions.

Dans ce cas, l'action anti-bactérienne ne s'effectue qu'au contact proche de la surface du récipient et non à coeur.In this case, the anti-bacterial action takes place only in close contact with the surface of the container and not at heart.

En fait, la présente invention se propose de remédier à tous ces inconvénients, c'est à dire au niveau de la pompe (airless), au niveau du mécanisme de protection de la tête.In fact, the present invention proposes to remedy all these drawbacks, ie at the level of the pump (airless), at the level of the protective mechanism of the head.

A cet effet, l'invention concerne un système de distribution et de fermeture destiné à être disposé à l'extrémité d'un récipient élastiquement déformable, notamment un tube souple comprenant un produit liquide ou pâteux, dont on provoque l'évacuation par pression sur ledit tube, ce système étant constitué par une soupape comprenant deux éléments concentriques, dont l'un forme un clapet cylindrique mobile comportant à sa partie supérieure centrale une ouverture définissant un siège périphérique et dont l'autre forme un corps cylindrique issu d'une plaque de liaison avec le tube et dont l'extrémité supérieure fermée dudit corps cylindrique est susceptible de coopérer à la fermeture avec le siège dudit clapet mobile, les deux éléments définissant entre eux un espace annulaire par lequel transite le produit, lors d'une pression manuelle exercée sur le tube, provoquant conséquemment une action directe du produit sur le clapet agissant sur celui-ci en ouverture, à l'encontre d'un organe de rappel élastique, de manière telle à laisser échapper le produit du tube, lorsqu'on exerce la pression sur celui-ci et à refermer automatiquement l'ouverture lorsqu'on la relâche, sans retour possible vers l'intérieur du produit déjà sorti.For this purpose, the invention relates to a distribution and closure system intended to be disposed at the end an elastically deformable container, in particular a flexible tube comprising a liquid or pasty product, which is evacuated by pressure on said tube, this system consisting of a valve comprising two concentric elements, one of which forms a cylindrical valve mobile having at its upper central part an opening defining a peripheral seat and the other of which forms a cylindrical body derived from a connecting plate with the tube and whose closed upper end of said cylindrical body is capable of cooperating with the closing with the seat of said movable valve, the two elements defining between them an annular space through which the product passes, during a manual pressure exerted on the tube, consequently causing a direct action of the product on the valve acting on it in opening, against an elastic return member, so as to escape the product of the tube, when n presses on it and automatically close the opening when released, without possible return to the inside of the product already released.

La présente invention concerne également les caractéristiques qui ressortiront au cours de la description qui va suivre, et qui devront être considérées isolément ou selon toutes leurs combinaisons techniques possibles.The present invention also relates to the features which will emerge during the following description, which should be considered in isolation or in all their possible technical combinations.

Cette description donnée à titre d'exemple non limitatif, fera mieux comprendre comment l'invention peut être réalisée en référence aux dessins annexés sur lesquels :

  • La figure 1 est une vue en perspective éclatée d'un système de distribution selon l'invention s'adaptant sur un tube souple.
  • La figure 2 est une vue éclatée en plan selon la figure 1.
  • La figure 3 est une vue du système selon les figures 1 et 2 après assemblage en position fermée.
  • La figure 4 est une vue du système selon les figures 1 et 2 après assemblage en position ouverte.
  • La figure 5 est une vue du détail A à échelle agrandie.
This description given by way of nonlimiting example, will better understand how the invention can be made with reference to the accompanying drawings in which:
  • Figure 1 is an exploded perspective view of a dispensing system according to the invention adapting to a flexible tube.
  • FIG. 2 is an exploded plan view according to FIG.
  • Figure 3 is a view of the system according to Figures 1 and 2 after assembly in the closed position.
  • Figure 4 is a view of the system according to Figures 1 and 2 after assembly in the open position.
  • Figure 5 is a detail view A on an enlarged scale.

Le système de distribution 1, globalement désigné sur les figures est disposé à l'extrémité d'un récipient 2, en l'occurrence un tube ou un flacon souple contenant un produit pâteux dont on provoque l'évacuation par pression sur ledit tube 2.The dispensing system 1 generally designated in the figures is disposed at the end of a container 2, in this case a flexible tube or bottle containing a pasty product which is evacuated by pressure on said tube 2.

Selon l'invention, le système 1 est constitué par une soupape 3 comprenant deux éléments concentriques 4, 5, dont l'un 4 forme un clapet cylindrique mobile comportant à sa partie supérieure centrale une ouverture 6 définissant un siège périphérique et dont l'autre 5 forme un corps cylindrique issu d'une plaque 7 de liaison avec le tube 2 et dont l'extrémité supérieure fermée 8 dudit corps cylindrique 5 est susceptible de coopérer à la fermeture avec le siège 6 dudit clapet mobile 4, les deux éléments 4, 5 définissant entre eux un espace annulaire 9 par lequel transite le produit 10, lors d'une pression manuelle F1, F2 exercée sur le tube 2, provoquant conséquemment une action directe du produit 10 sur le clapet 4 agissant sur celui-ci en ouverture, à l'encontre d'un organe de rappel élastique 11, caractérisé en ce qu'il comporte une double étanchéité obtenue au niveau de la zone d'ouverture fermeture de la soupape 3 par la combinaison d'une première lèvre périphérique 29 et d'une seconde lèvre 31 également périphérique réalisée à distance de la première 29, celle-ci étant réalisée sur le siège 6 du plateau mobile 4 afin d'exercer une action axiale sur une zone correspondante de l'extrémité 8 du corps cylindrique 5 de la plaque de liaison 7 alors que la seconde lèvre 31, également périphérique, est réalisée également à partir du siège 6 du clapet 4, afin d'exercer une action radiale sur une partie axiale dudit corps cylindrique 5 de la plaque de liaison 7, de manière telle que lesdites lèvres 29 et 31 constituent une double fermeture dont chacune est décalée dans le temps, de sorte que lors de la fermeture le résidu de matière localisé entre les deux lèvres soit expulsé vers l'extérieur, sans retour possible vers l'intérieur du produit déjà sorti.According to the invention, the system 1 is constituted by a valve 3 comprising two concentric elements 4, 5, one of which forms a movable cylindrical valve comprising at its central upper part an opening 6 defining a peripheral seat and the other of which 5 forms a cylindrical body coming from a plate 7 connecting to the tube 2 and whose closed upper end 8 of said cylindrical body 5 is able to cooperate with the closure with the seat 6 of said movable valve 4, the two elements 4, 5 defining between them an annular space 9 through which the product 10 passes, during a manual pressure F1, F2 exerted on the tube 2, thereby causing a direct action of the product 10 on the valve 4 acting on it in opening, against an elastic return member 11, characterized in that it comprises a double seal obtained at the closing opening zone of the valve 3 by the combination of a first peripheral lip 29 and a second lip 31 also peripheral device made remote from the first 29, the latter being made on the seat 6 of the movable plate 4 to exert an axial action on a corresponding zone of the end 8 of the cylindrical body 5 of the connecting plate 7 then that the second lip 31, also peripheral, is also made from the seat 6 of the valve 4, in order to exert a radial action on an axial portion of said cylindrical body 5 of the connecting plate 7, so that said lips 29 and 31 constitute a double closure each of which is shifted in time, so that when closing the residue of material located between the two lips is expelled outwards, without return ossible inward of the product already taken out.

Il est à noter que l'ouverture 6 formant le siège du clapet mobile 4 est selon le présent exemple de réalisation, tronconique mais bien entendu il pourrait être formé par une partie de sphère ou toutes autres formes conique ou cylindrique.It should be noted that the opening 6 forming the seat of the movable valve 4 is according to the present embodiment, frustoconical but of course it could be formed by a sphere portion or any other conical or cylindrical shape.

Comme le montre bien les figures, le clapet cylindrique mobile 4 est monté coulissant dans un sens axial entre le corps 5 de la plaque de liaison 7, qui est solidaire de l'extrémité 12 du tube 2, et un capot cylindrique 13 coiffant ledit système, également solidaire du tube 2. Ledit capot 13 comporte à sa partie supérieure un premier alésage interne cylindrique 14 ouvert à ses deux extrémités dans lequel est guidé et est susceptible de coulisser une première partie cylindrique 15 du clapet 4 lorsqu'il fonctionne en ouverture ou en fermeture.As shown in the figures, the movable cylindrical valve 4 is slidably mounted in an axial direction between the body 5 of the connecting plate 7, which is integral with the end 12 of the tube 2, and a cylindrical cap 13 covering said system. , also integral with the tube 2. Said cover 13 has at its upper part a first cylindrical internal bore 14 open at both ends in which is guided and is slidable a first cylindrical portion 15 of the valve 4 when operating in opening or closing.

Egalement, le clapet mobile 4 comporte une seconde partie cylindrique de guidage 16, concentrique à la première 15, réalisée à la périphérie d'une collerette de fond 17, s'étendant à partir d'une zone inférieure de la première partie cylindrique 15 dudit clapet 4 et venant en contact d'un second alésage interne 18 du capot 13, ouvert à sa partie inférieure uniquement.Also, the movable valve 4 comprises a second cylindrical guide portion 16, concentric with the first 15, made on the periphery of a bottom flange 17, extending from a lower zone of the first cylindrical portion 15 of said valve 4 and coming into contact with a second internal bore 18 of the cover 13, open at its lower part only.

Comme le montre les figures 3 et 4, la seconde partie cylindrique du guidage 16 du clapet mobile 4 comporte une lèvre supérieure 19 et une lèvre inférieure 20 frottant sur le second alésage 18 du capot 13, en vue d'assurer l'étanchéité lors du fonctionnement dudit clapet 4 de la position ouverte à la position fermée et vice-versa.As shown in FIGS. 3 and 4, the second cylindrical part of the guide 16 of the movable valve 4 comprises an upper lip 19 and a lower lip 20 rubbing against the second bore 18 of the cap 13, in order to ensure sealing during the operation of said valve 4 from the open position to the closed position and vice versa.

Selon une autre caractéristique de l'invention la paroi du capot 13 définissant le second alésage interne 18 de celui-ci, se prolonge à sa partie inférieure pour former un bord d'extrémité périphérique 21 coopérant fixement avec un bord relevé 22 de la plaque de liaison 7. Cette dernière est formée par une collerette s'étendant à partir d'une zone supérieure d'un manchon cylindrique 23 issu de ladite plaque 7 à sa partie inférieure, lequel manchon 23 coopère fixement avec l'extrémité supérieure 12 du tube 2 qu'il coiffe.According to another characteristic of the invention, the wall of the cover 13 defining the second internal bore 18 of the latter extends at its lower part to form a peripheral end edge 21 which cooperates with a raised edge 22 of the plate. link 7. The latter is formed by a flange extending from an upper zone of a cylindrical sleeve 23 coming from said plate 7 at its lower part, which sleeve 23 cooperates firmly with the upper end 12 of the tube 2 that he is wearing.

En fait, le système 1 couplé au tube 2 doit constituer un tout indémontable pour préserver la stérilité et l'étanchéité recherchée.In fact, the system 1 coupled to the tube 2 must be an indémontable whole to preserve the sterility and the desired sealing.

Par ailleurs, la plaque de liaison 7 comporte un second bord relevé 24 réalisé concentriquement entre le premier bord relevé périphérique 22 et le corps cylindrique fixe 5 de ladite plaque de liaison 7, de manière à constituer une butée inférieure au clapet mobile 4 agissant à la fermeture. Une partie d'extrémité inférieure 25 du premier alésage 14 du capot 13 constitue une butée supérieure dudit clapet 4, agissant à l'ouverture.Furthermore, the connecting plate 7 comprises a second raised edge 24 made concentrically between the first peripheral raised edge 22 and the fixed cylindrical body 5 of said connecting plate 7, so as to form a lower stop against the mobile valve 4 acting on the closing. A lower end portion 25 of the first bore 14 of the cover 13 constitutes an upper stop of said valve 4, acting at the opening.

Selon une autre caractéristique de l'invention, l'organe de rappel élastique 11 du clapet mobile 4 est interposé entre une partie interne de celui-ci et une partie interne du capot fixe 13.According to another characteristic of the invention, the resilient return member 11 of the mobile valve 4 is interposed between an inner part thereof and an inner part of the fixed cover 13.

Selon le présent exemple de réalisation, l'organe de rappel élastique 11 est constitué par une rondelle 26 de laquelle est issue une pluralité de bras radiaux 27 espacés angulairement de manière identique. Ladite rondelle 26 est disposée fixement sur un épaulement interne 28 du capot 13, alors que les bras 27 portent sur la collerette de fond 17 du clapet mobile 4, de manière à rappeler celui-ci automatiquement en fermeture après une ouverture.According to the present embodiment, the elastic return member 11 is constituted by a washer 26 from which is derived a plurality of radial arms 27 angularly spaced identically. Said washer 26 is fixedly disposed on an internal shoulder 28 of the cover 13, while the arms 27 bear on the bottom flange 17 of the movable valve 4, so as to return it automatically closing after an opening.

Bien entendu, bien que non représenté, l'organe de rappel élastique 11 peut être constitué par une pluralité de bras radiaux 27 espacés angulairement selon des angles identiques et obtenus par moulage avec une partie interne du capot 13, les bras 27 portant sur la collerette de fond 17 du clapet mobile. 4, de manière à rappeler celui-ci automatiquement en fermeture après une ouverture.Of course, although not shown, the elastic return member 11 may be constituted by a plurality of radial arms 27 spaced angularly at identical angles and obtained by molding with an inner portion of the cover 13, the arms 27 bearing on the collar bottom 17 of the flap mobile. 4, so as to remind it automatically closing after an opening.

Quoiqu'il en soit, l'organe de rappel élastique peut être constitué de différentes formes et matières mais il doit répondre à la résolution de la fonction ressort.Whatever the case may be, the elastic return member may consist of different shapes and materials, but it must respond to the resolution of the spring function.

Selon une autre caractéristique de l'invention particulièrement bien visible sur la figure 5, une double étanchéité est obtenue au niveau de la zone d'ouverture fermeture de la soupape 3 par la combinaison d'une première lèvre périphérique 29, réalisée sur le siège 6 du clapet mobile 4, afin d'exercer une action axiale sur une zone correspondante de l'extrémité 8 du corps cylindrique 5 de la plaque de liaison 7 et d'une seconde lèvre 31 également périphérique, réalisée également à partir du siège 6 du clapet mobile 4, à distance de la première 29, afin d'exercer une action radiale sur une partie axiale dudit corps cylindrique 5 de la plaque de liaison 7.According to another characteristic of the invention, which is particularly visible in FIG. 5, a double seal is obtained at the level of the closing opening zone of the valve 3 by the combination of a first peripheral lip 29, made on the seat 6 of the mobile valve 4, in order to exert an axial action on a corresponding zone of the end 8 of the cylindrical body 5 of the connecting plate 7 and a second lip 31 also peripheral, also made from the seat 6 of the valve mobile 4, remote from the first 29, to exert a radial action on an axial portion of said cylindrical body 5 of the connecting plate 7.

En fait, les lèvres 29 et 31 constituent une double fermeture donc chacune est décalée dans le temps, de sorte que lors de la fermeture le résidu de matière localisé entre les deux lèvres soit expulsé vers l'extérieur.In fact, the lips 29 and 31 constitute a double closure so each is offset in time, so that during closure the residue of material located between the two lips is expelled outwards.

Selon une autre caractéristique de l'invention, le système comporte un dispositif de reprise d'air constitué par un embout 32 réalisé à la partie inférieure de la plaque de liaison 7 et à l'intérieur duquel est disposé un filtre antibactérien poreux (non représenté).According to another characteristic of the invention, the system comprises an air intake device consisting of a tip 32 made at the bottom of the connecting plate 7 and inside which is disposed a porous antibacterial filter (not shown ).

Cette reprise d'air permet de redonner au tube sa forme initiale et d'améliorer le taux de vidange sans introduction de bactéries.This recovery of air makes it possible to give back to the tube its initial form and to improve the rate of emptying without introduction of bacteria.

Le filtre poreux permet d'une part l'admission de l'air externe au capot vers la zone intermédiaire située entre la plaque de liaison 7 et le clapet 4, contenant de la matière 10, d'où vers l'intérieur du tube, et d'autre part l'interdiction de pénétration des bactéries de l'extérieur vers l'intérieur et l'échappement du produit 10 de l'intérieur vers l'extérieur.The porous filter makes it possible, on the one hand, to admit air outside the hood to the intermediate zone situated between the connecting plate 7 and the valve 4, containing material 10, from which towards the inside of the tube, and on the other hand the prohibition of penetration of bacteria from the outside to the inside and the escape of the product 10 from the inside to the outside.

Bien que non représenté, le système peut comporter un couvercle de fermeture dont une zone d'appui interne vient en contact compressif avec l'extrémité supérieure de la soupape 3, pour verrouiller l'ouverture.Although not shown, the system may include a closure cover whose inner bearing area comes into compressive contact with the upper end of the valve 3, to lock the opening.

Ce couvercle qui peut être articulé ou vissé en position de fermeture permet également, grâce à sa zone d'appui, d'empêcher un mouvement inopiné de translation du clapet 4, ce qui pourrait provoquer une sortie de produit 10.This cover, which can be hinged or screwed into the closed position, also makes it possible, by virtue of its support zone, to prevent an unexpected movement of translation of the valve 4, which could cause a product outlet 10.

Préférentiellement, le clapet mobile 4, la plaque de liaison 7, le capot 13, l'organe élastique 11, le tube 2, le couvercle (non représenté) sont obtenus par moulage d'une matière plastique.Preferably, the movable valve 4, the connecting plate 7, the cover 13, the elastic member 11, the tube 2, the cover (not shown) are obtained by molding a plastic material.

En ce qui concerne l'organe élastique 11, celui-ci sera préférentiellement obtenu par moulage d'un polypropylène avec des fibres de verre ou d'un polyacétal, ou de toute autre matière présentant des caractéristiques mécaniques propres à assurer la fonction ressort.Regarding the elastic member 11, it will preferably be obtained by molding a polypropylene with glass fibers or a polyacetal, or any other material having mechanical characteristics to ensure the spring function.

En ce qui concerne le tube 2, celui-ci est réalisé de manière traditionnelle dans une matière plastique lui donnant des propriétés de souplesse par déformation permanente ou élastique.Regarding the tube 2, it is made in a traditional manner in a material plastic giving it flexibility properties by permanent or elastic deformation.

Pour des raisons évoquées plus haut, toutes les pièces du système de distribution à savoir le clapet mobile 4, la plaque de liaison 7, le capot 13, l'organe élastique 11, le couvercle (non représenté) sont obtenus en matière plastique contenant des ions argent.For reasons mentioned above, all the parts of the distribution system namely the movable valve 4, the connecting plate 7, the cover 13, the elastic member 11, the cover (not shown) are obtained from plastics material containing silver ions.

Ceci permet d'assurer une absence de prolifération bactérienne sur la pellicule résiduelle de matière.This makes it possible to ensure an absence of bacterial proliferation on the residual film of material.

Le système qui vient d'être décrit est stérilisable par rayonnement Gamma et Beta.The system which has just been described is sterilizable by gamma and beta radiation.

A noter également qu'il s'agit d'un système mécanique, non déformable, actionné par la seule pression appliquée par l'utilisateur sur le tube, qui lui est déformable, élastiquement ou non.Also note that it is a mechanical system, not deformable, operated by the only pressure applied by the user on the tube, which is deformable, elastically or not.

Ce système formé de seulement quatre pièces, voire trois, assure une ouverture et une fermeture d'extrémité anti-bactérienne, fonctionnant à la manière d'un clapet anti-retour, s'ouvrant par la poussée du produit sur le piston, à l'encontre de l'organe élastique 11 et ayant pour effet de dégager l'ouverture en créant un passage périphérique suite à une translation verticale du clapet 4.This system consisting of only four pieces, or even three, provides an opening and closing anti-bacterial end, operating in the manner of a non-return valve, opening by the thrust of the product on the piston, to the against the elastic member 11 and having the effect of clearing the opening by creating a peripheral passage following a vertical translation of the valve 4.

De plus, les volumes morts ne sont plus possibles car la soupape 3 se referme automatiquement dès qu'on relâche la pression F1, F2 sur le tube 2.In addition, the dead volumes are no longer possible because the valve 3 closes automatically as soon as the pressure F1, F2 is released on the tube 2.

A ce moment là, comme évoqué ci-dessus, le décalage dans le temps des deux fermetures constituées par les lèvres 29 et 31 permet d'expulser le résidu de matière localisé entre lesdites lèvres, vers l'extérieur.At this time, as mentioned above, the shift in time of the two closures formed by the lips 29 and 31 allows to expel the residue of material located between said lips, outwardly.

En résumé, la stérilité totale du produit est obtenue car :

  • il n'y a pas de rentrée de matière,
  • il n'y a pas de reprise d'air ou si la reprise d'air est prévue, l'utilisation d'un filtre antibactérien poreux empêche les bactéries de rentrer,
  • il est prévu une double étanchéité mécanique,
  • il est prévu une protection bactériostatique à certains endroits par des ions argent intégrés à la matière plastique.
In summary, the total sterility of the product is obtained because:
  • there is no return of material,
  • there is no return air or if the return air is provided, the use of a porous antibacterial filter prevents bacteria from entering,
  • a double mechanical seal is provided,
  • Bacteriostatic protection is provided in some places by silver ions embedded in the plastic material.

Claims (13)

  1. Dispensing and closure system (1) designed to be arranged at the end of a container (2), in particular a soft tube comprising a liquid or pasty product, which is delivered by pressing on said tube (2), of the type consisting of a valve (3) comprising two concentric elements (4, 5), one (4) of which forms a mobile cylindrical delivery valve that includes, in its central upper part, an opening (6) defining a peripheral seat, and the other (5) of which forms a cylindrical body emanating from a plate (7) linked to the tube (2), and in which the closed top (8) of said cylindrical body (5) is able to interact, upon closure, with the seat (6) of said mobile delivery valve (4), the two elements (4, 5) defining between them an annular gap (9) through which the product (10) passes, at the time of a manual pressure (F1, F2) exerted on the tube (2), causing, as a consequence, the product (10) to act directly on the delivery valve (4) causing the latter to open, countering an elastic return member (11), characterized in that it includes a double seal obtained in the opening/closure zone of the valve (3) by means of the combination of a first peripheral lip (29) and of a second lip (31), which is also peripheral, produced at a distance from the first lip (29), which lip is produced on the seat (6) of the mobile delivery valve (4) so as to exert an axial action on a corresponding zone of the end (8) of the cylindrical body (5) of the linking plate (7), while the second lip (31), which is also peripheral, is produced, also, starting from the seat (6) of the delivery valve (4) so as to exert a radial action on an axial part of said cylindrical body (5) of the linking plate (7), in such a way that said lips (29, 31) form a double closure, each of which is offset in terms of time, so that, upon closure, the residue of material located between the two lips is expelled outward, with no possible return of the product that has already exited toward the inside.
  2. System according to Claim 1, characterized in that the mobile cylindrical delivery valve (4) is mounted so as to slide in an axial direction between the body (5) of the linking plate (7) which is designed to be integral with the end (12) of the tube (2) and a cylindrical cap (13) capping said system, also designed to be integral with the tube (2), said cap (13) including, in its upper part, a first cylindrical outer bore (14) that is open at its two ends, in which a first cylindrical part (15) of the delivery valve (4) is guided and can slide when it opens or closes.
  3. System according to Claim 2, characterized in that the mobile delivery valve (4) includes a second cylindrical guide part (16), concentric with the first (15), produced at the periphery of a bottom collar (17) extending from a lower zone of the first cylindrical part (15) of said delivery valve (4) and coming into contact with a second internal bore (18) of the cap (13), which is open only at its lower part.
  4. System according to Claim 3, characterized in that the second cylindrical guide part (16) of the mobile delivery valve (4) includes an upper lip (19) and a lower lip (20) in frictional contact on the second bore (18) of the cap (13), with a view to guaranteeing leaktightness when said delivery valve (4) functions.
  5. System according to one of Claims 3 or 4, characterized in that the wall of the cap (13) defining the second inner bore (18) of the cap extends at its lower part in order to form a peripheral end edge (21) interacting in a fixed manner with a raised edge (22) of the linking plate (7), the latter being formed by a collar extending from an upper zone of a cylindrical sleeve (23) emanating from said plate (7) at its lower part, which sleeve (23) is designed to interact in a fixed manner with the top (12) of the tube (2) that it caps.
  6. System according to Claim 5, characterized in that the linking plate (7) includes a second raised edge (24) produced concentrically between the first peripheral raised edge (22) and the fixed cylindrical body (5) of said linking plate (7) so as to form a lower stop for the mobile delivery valve (4) acting upon closure, a lower end part (25) of the first bore (14) of the cap (13) forming an upper stop for said delivery valve (4) acting upon closure.
  7. System according to one of Claims 2 to 6, characterized in that the elastic return member (11) for the mobile delivery valve (4) is interposed between an inner part of the delivery valve and an inner part of the fixed cap (13).
  8. System according to one of Claims 3 to 7, characterized in that the elastic return member (11) consists of a washer (26) from which emanates a plurality of radial arms (27) spaced angularly in an identical manner, said washer (26) being arranged in a fixed manner on an inner shoulder (28) of the cap (13), while the arms (27) bear on the bottom collar (17) of the mobile delivery valve (4) so as to return the latter automatically to the closure position after opening.
  9. System according to one of Claims 3 to 7, characterized in that the elastic return member (11) consists of a plurality of radial arms (27) spaced angularly at identical angles and obtained by molding with an inner part of the cap (13), the arms (27) bearing on the bottom collar (17) of the mobile delivery valve (4) so as to return the latter automatically to the closure position after opening.
  10. System according to one of Claims 1 to 9, characterized in that it comprises an air-intake device consisting of an end piece (32) produced at the lower part of the linking plate (7) and inside which a porous antibacterial filter is arranged.
  11. System according to one of Claims 1 to 10, characterized in that it includes a closure cover, an inner bearing zone of which comes into compressive contact with the top of the valve (3) in order to lock the opening.
  12. System according to one of Claims 2 to 11, characterized in that the mobile delivery valve (4), the linking plate (7), the cap (13), the elastic member (11), and the cover are obtained by molding from plastic.
  13. System according to Claim 12, characterized in that the pieces of the dispensing system, namely the mobile delivery valve (4), the linking plate (7), the cap (13), the elastic member (11), and the cover are obtained from plastic containing silver ions.
EP02804594A 2001-12-13 2002-11-29 Sterile system for dispensing a product contained in a container in particular a soft tube Expired - Lifetime EP1453738B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
FR0116333 2001-12-13
FR0116333A FR2833579B1 (en) 2001-12-13 2001-12-13 STERILE DISPENSING SYSTEM FOR A PRODUCT CONTAINED IN A CONTAINER, IN PARTICULAR A FLEXIBLE TUBE
PCT/FR2002/004106 WO2003050010A2 (en) 2001-12-13 2002-11-29 Sterile system for dispensing a product contained in a container

Publications (2)

Publication Number Publication Date
EP1453738A2 EP1453738A2 (en) 2004-09-08
EP1453738B1 true EP1453738B1 (en) 2007-07-18

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EP02804594A Expired - Lifetime EP1453738B1 (en) 2001-12-13 2002-11-29 Sterile system for dispensing a product contained in a container in particular a soft tube

Country Status (9)

Country Link
US (1) US6974053B2 (en)
EP (1) EP1453738B1 (en)
JP (1) JP4234601B2 (en)
AT (1) ATE367318T1 (en)
AU (1) AU2002364620A1 (en)
DE (1) DE60221276T2 (en)
ES (1) ES2289181T3 (en)
FR (1) FR2833579B1 (en)
WO (1) WO2003050010A2 (en)

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JP4234601B2 (en) 2009-03-04
AU2002364620A1 (en) 2003-06-23
US20050067440A1 (en) 2005-03-31
FR2833579A1 (en) 2003-06-20
EP1453738A2 (en) 2004-09-08
ES2289181T3 (en) 2008-02-01
ATE367318T1 (en) 2007-08-15
AU2002364620A8 (en) 2003-06-23
US6974053B2 (en) 2005-12-13
JP2005511430A (en) 2005-04-28
FR2833579B1 (en) 2004-10-08
WO2003050010A2 (en) 2003-06-19
DE60221276T2 (en) 2008-04-03
WO2003050010A3 (en) 2003-12-11
DE60221276D1 (en) 2007-08-30

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