EP0462861B1 - Method for packaging a product in a container, ensuring product preservation during storage and the corresponding packaging unit - Google Patents

Method for packaging a product in a container, ensuring product preservation during storage and the corresponding packaging unit Download PDF

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Publication number
EP0462861B1
EP0462861B1 EP91401462A EP91401462A EP0462861B1 EP 0462861 B1 EP0462861 B1 EP 0462861B1 EP 91401462 A EP91401462 A EP 91401462A EP 91401462 A EP91401462 A EP 91401462A EP 0462861 B1 EP0462861 B1 EP 0462861B1
Authority
EP
European Patent Office
Prior art keywords
cap
container
elastic membrane
valve
membrane
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
EP91401462A
Other languages
German (de)
French (fr)
Other versions
EP0462861A1 (en
Inventor
Jean-Louis Gueret
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
LOreal SA
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LOreal SA
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Publication date
Application filed by LOreal SA filed Critical LOreal SA
Publication of EP0462861A1 publication Critical patent/EP0462861A1/en
Application granted granted Critical
Publication of EP0462861B1 publication Critical patent/EP0462861B1/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
    • B65D51/00—Closures not otherwise provided for
    • B65D51/002—Closures to be pierced by an extracting-device for the contents and fixed on the container by separate retaining means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • B65B31/00—Packaging articles or materials under special atmospheric or gaseous conditions; Adding propellants to aerosol containers
    • B65B31/04—Evacuating, pressurising or gasifying filled containers or wrappers by means of nozzles through which air or other gas, e.g. an inert gas, is withdrawn or supplied
    • B65B31/046—Evacuating, pressurising or gasifying filled containers or wrappers by means of nozzles through which air or other gas, e.g. an inert gas, is withdrawn or supplied the nozzles co-operating, or being combined, with a device for opening or closing the container or wrapper
    • B65B31/047—Evacuating, pressurising or gasifying filled containers or wrappers by means of nozzles through which air or other gas, e.g. an inert gas, is withdrawn or supplied the nozzles co-operating, or being combined, with a device for opening or closing the container or wrapper the nozzles co-operating with a check valve in the opening of the container or wrapper
    • 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
    • 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
    • B65D51/00—Closures not otherwise provided for
    • B65D51/16—Closures not otherwise provided for with means for venting air or gas
    • B65D51/1633—Closures not otherwise provided for with means for venting air or gas whereby venting occurs by automatic opening of the closure, container or other element
    • B65D51/1644—Closures not otherwise provided for with means for venting air or gas whereby venting occurs by automatic opening of the closure, container or other element the element being a valve
    • 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
    • B65D51/00—Closures not otherwise provided for
    • B65D51/16—Closures not otherwise provided for with means for venting air or gas
    • B65D51/1633—Closures not otherwise provided for with means for venting air or gas whereby venting occurs by automatic opening of the closure, container or other element
    • B65D51/1644—Closures not otherwise provided for with means for venting air or gas whereby venting occurs by automatic opening of the closure, container or other element the element being a valve
    • B65D51/165—Closures not otherwise provided for with means for venting air or gas whereby venting occurs by automatic opening of the closure, container or other element the element being a valve formed by a slit or narrow opening
    • 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
    • B65D81/00—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents
    • B65D81/18—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents providing specific environment for contents, e.g. temperature above or below ambient
    • B65D81/20—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents providing specific environment for contents, e.g. temperature above or below ambient under vacuum or superatmospheric pressure, or in a special atmosphere, e.g. of inert gas
    • B65D81/2007—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents providing specific environment for contents, e.g. temperature above or below ambient under vacuum or superatmospheric pressure, or in a special atmosphere, e.g. of inert gas under vacuum
    • B65D81/2038—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents providing specific environment for contents, e.g. temperature above or below ambient under vacuum or superatmospheric pressure, or in a special atmosphere, e.g. of inert gas under vacuum with means for establishing or improving vacuum
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B67—OPENING, CLOSING OR CLEANING BOTTLES, JARS OR SIMILAR CONTAINERS; LIQUID HANDLING
    • B67C—CLEANING, FILLING WITH LIQUIDS OR SEMILIQUIDS, OR EMPTYING, OF BOTTLES, JARS, CANS, CASKS, BARRELS, OR SIMILAR CONTAINERS, NOT OTHERWISE PROVIDED FOR; FUNNELS
    • B67C3/00—Bottling liquids or semiliquids; Filling jars or cans with liquids or semiliquids using bottling or like apparatus; Filling casks or barrels with liquids or semiliquids
    • B67C3/02—Bottling liquids or semiliquids; Filling jars or cans with liquids or semiliquids using bottling or like apparatus
    • B67C3/22—Details
    • B67C3/222—Head-space air removing devices, e.g. by inducing foam

Definitions

  • the present invention relates to a method for packaging a product in a container making it possible to ensure better conservation of the product during storage by establishing a reduced pressure in the container containing the product and / or by introducing an inert gas vis- vis-à-vis the product packaged in the container. This process is particularly suitable for use on packaging lines.
  • inert gas a gas which is not capable of reacting chemically with the preserved product and which does not contain microorganisms capable of degrading the preserved product.
  • inert gas is most often nitrogen.
  • suction or injection of inert gas is generally carried out through a hypodermic needle, the small section of which limits the gas flow rates and consequently increases the times required for these operations on the packaging lines.
  • Improving the conservation of products during storage has the advantage of making it possible to avoid, totally or partially, adding preservatives to these products, which can have a harmful action on the user, for example an irritant action or allergen in the case of a cosmetic.
  • the present invention firstly relates to a process for packaging a product in a container, making it possible to ensure better conservation of the product during storage by establishing by suction a reduced pressure in the container and / or by introducing a gas therein.
  • inert vis-à-vis the stored product in which, after filling the container with the product through a neck area, a capsule is fixed in leaktight manner on said neck area, through which it is established by suction , a pressure below the atmospheric pressure and / or an inert gas is introduced by injection, the capsule remaining on the container and then maintaining the sealing of the container during storage, in which the capsule is associated with a valve constituted by a flexible elastic membrane provided with at least one opening; is applied to said valve a member connected to suction means for establishing a reduced pressure and / or to injection means for the introduction of an inert gas; the reduced pressure is established and / or the inert gas is introduced into the container using said member through the valve, the opening and closing of said valve being by deformation of the elastic
  • the container it is possible either to establish a reduced pressure in the container, or to introduce an inert gas by purging the air contained in the container.
  • suction is first carried out so as to obtain a reduced pressure in the container, then the container is brought back to atmospheric pressure by the introduction of an inert gas.
  • a second object of the present invention is a packaging assembly comprising a container containing a product, on a neck area of which is fixed a capsule associated with a valve through which a reduced pressure is established and / or an inert gas is introduced into the container, in which the valve is constituted by a flexible elastic membrane having the shape of a cylindrical cap having an edge and a bottom, at least one opening being formed in the membrane, being able to remain closed thanks to the inherent elasticity of said membrane and can be opened by the action of a suction and / or injection member on the bottom of said membrane, characterized in that the elastic membrane is carried by the capsule and that the edge of the cylindrical cap constituting said membrane elastic is connected to the bottom by a side skirt, the membrane comprising a plurality of openings arranged in the zone of junction of said bottom with said lateral skirt and in line with the end of a rigid skirt integral with the capsule, an annular projection carried by said bottom resting on the internal face of the rigid skirt, the end of said rigid skirt thus being clamped between said annular
  • a perforated plate ensuring both a rigidity of the rigid skirt and the passage of the product to be dispensed and , on the other hand, means ensuring the seal between the capsule and the container.
  • An overcap is preferably fixed on the capsule so as to cover it, this overcap comprising means for holding the elastic membrane in the closed position.
  • This means is, for example, constituted by a bead located on the inner wall of the overcap which presses on the elastic membrane substantially in line with the annular projection thereof and maintains the lateral skirt of the elastic membrane against the rigid skirt forming a seat .
  • the outer wall of the capsule and / or the inner wall of the overcap is (are) provided with means preventing the rotation of said overcap relative to said capsule.
  • Figures 1 and 2 show at different stages of the process an assembly 401 according to the invention.
  • FIG. 2 shows in axial section, the assembly 401 ready for storage.
  • This assembly 401 is constituted by a bottle 402 on the neck 421 from which is screwed a head 403, which is in turn covered by an overcap 404.
  • the head 403 consists of a capsule 406 on which a thin membrane is fixed by welding elastic 405 forming a valve 405 and cooperating with a seat, which is part of the capsule 406.
  • FIG. 3 shows in more detail the capsule 406 and the membrane 405, during the mounting of the head 403.
  • the capsule 406 consists of a cylindrical skirt 461 of the same axis as the neck 421, which is provided on its internal wall with a screw thread cooperating with an external screw thread of the neck and which comprises, on its lower edge, an external bead of breakdown 462.
  • the skirt 461 carries, at its upper part, a circular transverse plate 464.
  • This plate 464 is pierced with openings 465 arranged on a circle having as axis the axis of the neck 421 and opening in this neck 421; it is provided, on its side on the bottle side, with a sealing skirt 466, in contact with the internal wall of the neck and, on its opposite side, with a cylindrical skirt 468, which forms a seat for the elastic membrane 405 as it will be explained below.
  • the cylindrical skirt 468 surrounds the openings 465.
  • the elastic membrane 405 has the shape of a cylindrical cap, which covers the cylindrical skirt 468 and which has an annular flat edge 452 and a bottom 451. Openings 453 are arranged on a circle in the zone of connection between the edge 452 and the side skirt of the cylindrical cap, said side skirt connecting the bottom 451 and the edge 452.
  • the edge 452 is welded to the transverse plate 464 so that the annular projection 454 of the elastic membrane 405 is in contact with the interior of the skirt 468 of the capsule and that the openings 453 open in the space between the annular projection 454 and the side skirt of the elastic membrane 405, the skirt 468 being disposed between the annular projection 454 and the side skirt of the membrane 405.
  • the overcap 404 laterally comprises a cylindrical skirt 442, the lower edge of which has a groove 443 cooperating with the external flange 462 of the capsule 406 and the upper edge of which is connected to a circular upper face 441 perpendicular to the axis of the neck 421.
  • the internal wall of the upper face 441 carries, as a means keeping the elastic membrane in the closed position, an annular bead 444, which presses on the elastic membrane on a circle of diameter slightly smaller than that of the annular projection 454, so to be able to keep said projection 454 pressed in leaktight manner against the rigid skirt 468.
  • the bottle 402 is filled with product P, then the capsule 406 equipped with its elastic membrane 405 is screwed onto the neck 421 of the bottle 402.
  • the capsule 406 equipped with its elastic membrane 405 is screwed onto the neck 421 of the bottle 402.
  • a bell 407 we apply then tightly on the elastic membrane 405 a bell 407 and the air contained in the bottle is aspirated, as indicated by the arrow F1 so as to establish a reduced pressure in the bottle 402.
  • the elastic membrane 405 is deformed by swelling, the side wall of the cap deviating from the external wall of the skirt 468; simultaneously, the annular projection 454 of the membrane 405 departs from the skirt 468 of the capsule 406; the openings 453 of the membrane 405 and 465 of the capsule 406 bring the bottle 402 into communication with the bell 407.
  • the overcap 404 is then fixed on the head 403.
  • the annular bead 444 presses on the elastic membrane 405 and maintains said membrane 405 in the closed position while keeping the projection 454 pressed against the skirt 468, even in the event of repressurization of the bottle 402.
  • the product contained in the bottle is therefore kept under reduced pressure during storage and isolated from the atmosphere.
  • overcap 404 When the user wishes to withdraw the product contained in the bottle, he acts on the overcap 404, which is secured in rotation with the head 403 by interaction of the ridges 467 and 445, and separates the assembly (overcap 404 / head 403) from the bottle 402.
  • valve formed by the elastic membrane 405 is kept in the sealed closed position during storage until the user opens the bottle.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Dispersion Chemistry (AREA)
  • Closures For Containers (AREA)

Description

La présente invention concerne un procédé pour le conditionnement d'un produit dans un conteneur permettant d'assurer une meilleure conservation du produit au cours du stockage en établissant une pression réduite dans le conteneur renfermant le produit et/ou en introduisant un gaz inerte vis-à-vis du produit conditionné dans le conteneur. Ce procédé est particulièrement adapté à une utilisation sur des chaînes de conditionnement.The present invention relates to a method for packaging a product in a container making it possible to ensure better conservation of the product during storage by establishing a reduced pressure in the container containing the product and / or by introducing an inert gas vis- vis-à-vis the product packaged in the container. This process is particularly suitable for use on packaging lines.

Il est connu, notamment par le brevet US-A-2 364 126, que l'on améliore la conservation de produits au cours du stockage en établissant par aspiration une pression réduite dans le récipient, qui les contient, ou en remplaçant dans ce récipient l'air par un gaz inerte vis-à-vis du produit stocké. Par gaz inerte, on entend un gaz qui n'est pas susceptible de réagir chimiquement avec le produit conservé et qui ne contient pas de microorganismes susceptibles de dégrader le produit conservé. Dans la pratique, le gaz inerte est le plus souvent de l'azote. Malheureusement, l'aspiration ou l'injection de gaz inerte s'effectue généralement à travers une aiguille hypodermique dont la faible section limite les débits gazeux et augmente, en conséquence, les temps requis pour ces opérations sur les chaînes de conditionnement.It is known, in particular from US Pat. No. 2,364,126, that the preservation of products during storage is improved by establishing by suction a reduced pressure in the container which contains them, or by replacing in this container air by an inert gas vis-à-vis the stored product. By inert gas is meant a gas which is not capable of reacting chemically with the preserved product and which does not contain microorganisms capable of degrading the preserved product. In practice, the inert gas is most often nitrogen. Unfortunately, the suction or injection of inert gas is generally carried out through a hypodermic needle, the small section of which limits the gas flow rates and consequently increases the times required for these operations on the packaging lines.

L'amélioration de la conservation des produits au stockage a l'avantage de permettre d'éviter, totalement ou partiellement, d'ajouter à ces produits des conservateurs, qui peuvent avoir sur l'utilisateur une action nocive, par exemple une action irritante ou allergène dans le cas d'un cosmétique.Improving the conservation of products during storage has the advantage of making it possible to avoid, totally or partially, adding preservatives to these products, which can have a harmful action on the user, for example an irritant action or allergen in the case of a cosmetic.

La présente invention a pour premier objet un procédé de conditionnement d'un produit dans un conteneur, permettant d'assurer une meilleure conservation du produit au cours du stockage en établissant par aspiration une pression réduite dans le conteneur et/ou en y introduisant un gaz inerte vis-à-vis du produit stocké, dans lequel, après avoir rempli le conteneur avec le produit par une zone de goulot, on fixe, de façon étanche, sur ladite zone de goulot, une capsule à travers laquelle on établit, par aspiration, une pression inférieure à la pression atmosphérique et/ou on introduit par injection un gaz inerte, la capsule restant sur le conteneur et maintenant ensuite l'étanchéité du conteneur au cours du stockage, dans lequel on associe la capsule à une valve constituée par une membrane élastique flexible munie d'au moins une ouverture ; on applique sur ladite valve un organe relié à des moyens d'aspiration pour l'établissement d'une pression réduite et/ou à des moyens d'injection pour l'introduction d'un gaz inerte ; on établit la pression réduite et/ou on introduit le gaz inerte dans le conteneur à l'aide dudit organe à travers la valve, l'ouverture et la fermeture de ladite valve se faisant par déformation de la membrane élastique ; et enfin, on retire ledit organe, caractérisé par le fait que l'on utilise une valve comportant une pluralité d'ouvertures, la membrane élastique de la valve coopérant avec un siège au droit de ses ouvertures et que l'on choisit, comme organe relié à des moyens d'aspiration et/ou d'injection, une cloche destinée à s'appuyer sur la membrane élastique selon un périmètre entourant la totalité des ouvertures de ladite membrane.The present invention firstly relates to a process for packaging a product in a container, making it possible to ensure better conservation of the product during storage by establishing by suction a reduced pressure in the container and / or by introducing a gas therein. inert vis-à-vis the stored product, in which, after filling the container with the product through a neck area, a capsule is fixed in leaktight manner on said neck area, through which it is established by suction , a pressure below the atmospheric pressure and / or an inert gas is introduced by injection, the capsule remaining on the container and then maintaining the sealing of the container during storage, in which the capsule is associated with a valve constituted by a flexible elastic membrane provided with at least one opening; is applied to said valve a member connected to suction means for establishing a reduced pressure and / or to injection means for the introduction of an inert gas; the reduced pressure is established and / or the inert gas is introduced into the container using said member through the valve, the opening and closing of said valve being by deformation of the elastic membrane; and finally, the said member is removed, characterized by the fact that a valve is used comprising a plurality of openings, the elastic membrane of the valve cooperating with a seat in line with its openings and which one chooses as the member connected to suction and / or injection means, a bell intended to rest on the elastic membrane along a perimeter surrounding all the openings of said membrane.

Selon l'invention, il est possible, soit d'établir une pression réduite dans le conteneur, soit d'introduire un gaz inerte en purgeant l'air contenu dans le conteneur. Cependant, de préférence, on effectue d'abord une aspiration de façon à obtenir une pression réduite dans le conteneur, puis on ramène le conteneur à pression atmosphérique par introduction d'un gaz inerte.According to the invention, it is possible either to establish a reduced pressure in the container, or to introduce an inert gas by purging the air contained in the container. However, preferably, suction is first carried out so as to obtain a reduced pressure in the container, then the container is brought back to atmospheric pressure by the introduction of an inert gas.

La présente invention a pour second objet un ensemble de conditionnement comportant un conteneur renfermant un produit, sur une zone de goulot duquel est fixée une capsule associée à une valve à travers laquelle on établit une pression réduite et/ou on introduit un gaz inerte dans le conteneur, dans lequel la valve est constituée par une membrane élastique flexible ayant la forme d'un chapeau cylindrique comportant un bord et un fond, au moins une ouverture étant pratiquée dans la membrane, pouvant rester fermée grâce à l'élasticité propre de ladite membrane et pouvant s'ouvrir par action d'un organe d'aspiration et/ou d'injection sur le fond de ladite membrane, caractérisé par le fait que la membrane élastique est portée par la capsule et que le bord du chapeau cylindrique constituant ladite membrane élastique est relié au fond par une jupe latérale, la membrane comportant une pluralité d'ouvertures disposées dans la zone de jonction dudit fond avec ladite jupe latérale et au droit de l'extrémité d'une jupe rigide solidaire de la capsule, une saillie annulaire portée par ledit fond s'appuyant sur la face interne de la jupe rigide, l'extrémité de ladite jupe rigide étant ainsi enserrée entre ladite saillie annulaire et la jupe latérale de la membrane élastique, ladite membrane élastique ayant une structure permettant l'utilisation d'un organe d'aspiration et/ou d'injection constitué d'une cloche destinée à s'appuyer sur la membrane élastique selon un périmètre entourant la totalité des ouvertures.A second object of the present invention is a packaging assembly comprising a container containing a product, on a neck area of which is fixed a capsule associated with a valve through which a reduced pressure is established and / or an inert gas is introduced into the container, in which the valve is constituted by a flexible elastic membrane having the shape of a cylindrical cap having an edge and a bottom, at least one opening being formed in the membrane, being able to remain closed thanks to the inherent elasticity of said membrane and can be opened by the action of a suction and / or injection member on the bottom of said membrane, characterized in that the elastic membrane is carried by the capsule and that the edge of the cylindrical cap constituting said membrane elastic is connected to the bottom by a side skirt, the membrane comprising a plurality of openings arranged in the zone of junction of said bottom with said lateral skirt and in line with the end of a rigid skirt integral with the capsule, an annular projection carried by said bottom resting on the internal face of the rigid skirt, the end of said rigid skirt thus being clamped between said annular projection and the lateral skirt of the elastic membrane, said elastic membrane having a structure allowing the use of a suction member and / or injection consisting of a bell intended to rest on the elastic membrane around a perimeter surrounding all of the openings.

Entre la zone de fixation de la capsule sur le goulot et l'extrémité de la jupe rigide, on peut prévoir, d'une part, un plateau perforé assurant à la fois une rigidité de la jupe rigide et le passage du produit à distribuer et, d'autre part, des moyens assurant l'étanchéité entre la capsule et le conteneur.Between the area of attachment of the capsule to the neck and the end of the rigid skirt, one can provide, on the one hand, a perforated plate ensuring both a rigidity of the rigid skirt and the passage of the product to be dispensed and , on the other hand, means ensuring the seal between the capsule and the container.

Un surcapot est, de préférence, fixé sur la capsule de façon à la recouvrir, ce surcapot comportant un moyen pour maintenir la membrane élastique en position fermée. Ce moyen est, par exemple, constitué par un bourrelet situé sur la paroi intérieure du surcapot qui appuie sur la membrane élastique sensiblement au droit de la saillie annulaire de celle-ci et maintient la jupe latérale de la membrane élastique contre la jupe rigide formant siège .An overcap is preferably fixed on the capsule so as to cover it, this overcap comprising means for holding the elastic membrane in the closed position. This means is, for example, constituted by a bead located on the inner wall of the overcap which presses on the elastic membrane substantially in line with the annular projection thereof and maintains the lateral skirt of the elastic membrane against the rigid skirt forming a seat .

Avantageusement, la paroi extérieure de la capsule et/ou la paroi intérieure du surcapot est (sont) munie(s) de moyen(s) empêchant la rotation dudit surcapot par rapport à ladite capsule.Advantageously, the outer wall of the capsule and / or the inner wall of the overcap is (are) provided with means preventing the rotation of said overcap relative to said capsule.

Pour mieux faire comprendre l'objet de l'invention, on va en décrire ci-après, à titre purement illustratif et non limitatif, un mode de réalisation représenté sur le dessin annexé.To better understand the object of the invention, we will describe below, purely by way of illustration and not limitation, an embodiment shown in the accompanying drawing.

Sur ce dessin :

  • la figure 1 représente, en coupe axiale partielle, un flacon au cours du processus d'aspiration pour établir une pression réduite ;
  • la figure 2 représente, en coupe axiale partielle, le flacon de la figure 1 après fixation d'un surcapot.
  • la figure 3 représente, en perspective éclatée, la capsule en cours de montage ;
On this drawing :
  • Figure 1 shows, in partial axial section, a bottle during the suction process to establish a reduced pressure;
  • 2 shows, in partial axial section, the bottle of Figure 1 after fixing an overcap.
  • Figure 3 shows, in exploded perspective, the capsule during assembly;

Les figures 1 et 2 représentent à différents stades du procédé un ensemble 401 selon l'invention.Figures 1 and 2 show at different stages of the process an assembly 401 according to the invention.

La figure 2 représente en coupe axiale, l'ensemble 401 prêt pour le stockage. Cet ensemble 401 est constitué par un flacon 402 sur le goulot 421 duquel est vissée une tête 403, qui est à son tour recouverte par un surcapot 404. La tête 403 se compose d'une capsule 406 sur laquelle est fixée par soudure une fine membrane élastique 405 formant valve 405 et coopérant avec un siège, qui fait partie de la capsule 406. La figure 3 représente plus en détail la capsule 406 et la membrane 405, au cours du montage de la tête 403. La capsule 406 est constituée par une jupe cylindrique 461 de même axe que le goulot 421, qui est munie sur sa paroi interne d'un pas de vis coopérant avec un pas de vis externe du goulot et qui comporte, sur son bord inférieur, un bourrelet externe de claquage 462. La jupe 461 porte, à sa partie supérieure, un plateau transversal 464 circulaire. Ce plateau 464 est percé d'ouvertures 465 disposées sur un cercle ayant pour axe l'axe du goulot 421 et s'ouvrant dans ce goulot 421 ; il est muni, sur sa face côté flacon, d'une jupe d'étanchéité 466, en contact avec la paroi interne du goulot et, sur sa face opposée, d'une jupe cylindrique 468, qui forme siège pour la membrane élastique 405 comme il sera expliqué ci-après. La jupe cylindrique 468 entoure les ouvertures 465.Figure 2 shows in axial section, the assembly 401 ready for storage. This assembly 401 is constituted by a bottle 402 on the neck 421 from which is screwed a head 403, which is in turn covered by an overcap 404. The head 403 consists of a capsule 406 on which a thin membrane is fixed by welding elastic 405 forming a valve 405 and cooperating with a seat, which is part of the capsule 406. FIG. 3 shows in more detail the capsule 406 and the membrane 405, during the mounting of the head 403. The capsule 406 consists of a cylindrical skirt 461 of the same axis as the neck 421, which is provided on its internal wall with a screw thread cooperating with an external screw thread of the neck and which comprises, on its lower edge, an external bead of breakdown 462. The skirt 461 carries, at its upper part, a circular transverse plate 464. This plate 464 is pierced with openings 465 arranged on a circle having as axis the axis of the neck 421 and opening in this neck 421; it is provided, on its side on the bottle side, with a sealing skirt 466, in contact with the internal wall of the neck and, on its opposite side, with a cylindrical skirt 468, which forms a seat for the elastic membrane 405 as it will be explained below. The cylindrical skirt 468 surrounds the openings 465.

La membrane élastique 405 a la forme d'un chapeau cylindrique, qui coiffe la jupe cylindrique 468 et qui comporte un bord plat annulaire 452 et un fond 451. Des ouvertures 453 sont disposées sur un cercle dans la zone de liaison entre le bord 452 et la jupe latérale du chapeau cylindrique, ladite jupe latérale reliant le fond 451 et le bord 452. Une saillie annulaire 454, ayant un diamètre plus faible que celui du cercle portant les ouvertures 453, est ménagée sous le fond 451, c'est-à-dire du côté du flacon 402.The elastic membrane 405 has the shape of a cylindrical cap, which covers the cylindrical skirt 468 and which has an annular flat edge 452 and a bottom 451. Openings 453 are arranged on a circle in the zone of connection between the edge 452 and the side skirt of the cylindrical cap, said side skirt connecting the bottom 451 and the edge 452. An annular projection 454, having a smaller diameter than that of the circle carrying the openings 453, is provided under the bottom 451, that is to say - say on the side of bottle 402.

Le bord 452 est soudé sur le plateau transversal 464 de façon que la saillie annulaire 454 de la membrane élastique 405 soit en contact avec l'intérieur de la jupe 468 de la capsule et que les ouvertures 453 s'ouvrent dans l'espace situé entre la saillie annulaire 454 et la jupe latérale de la membrane élastique 405, la jupe 468 étant disposée entre la saillie annulaire 454 et la jupe latérale de la membrane 405.The edge 452 is welded to the transverse plate 464 so that the annular projection 454 of the elastic membrane 405 is in contact with the interior of the skirt 468 of the capsule and that the openings 453 open in the space between the annular projection 454 and the side skirt of the elastic membrane 405, the skirt 468 being disposed between the annular projection 454 and the side skirt of the membrane 405.

Le surcapot 404 comporte latéralement une jupe cylindrique 442, dont le bord inférieur comporte une rainure 443 coopérant avec le bourrelet externe de claquage 462 de la capsule 406 et dont le bord supérieur est relié à une face supérieure 441 circulaire perpendiculaire à l'axe du goulot 421. La paroi interne de la face supérieure 441 porte, comme moyen maintenant la membrane élastique en position fermée, un bourrelet annulaire 444, qui appuie sur la membrane élastique sur un cercle de diamètre légèrement inférieur à celui de la saillie annulaire 454, de façon à pouvoir maintenir ladite saillie 454 appuyée de façon étanche contre la jupe rigide 468.The overcap 404 laterally comprises a cylindrical skirt 442, the lower edge of which has a groove 443 cooperating with the external flange 462 of the capsule 406 and the upper edge of which is connected to a circular upper face 441 perpendicular to the axis of the neck 421. The internal wall of the upper face 441 carries, as a means keeping the elastic membrane in the closed position, an annular bead 444, which presses on the elastic membrane on a circle of diameter slightly smaller than that of the annular projection 454, so to be able to keep said projection 454 pressed in leaktight manner against the rigid skirt 468.

Pour effectuer le conditionnement du produit selon la présente invention, on remplit le flacon 402 du produit P, puis on visse la capsule 406 équipée de sa membrane élastique 405 sur le goulot 421 du flacon 402. Comme illustré schématiquement sur la figure 8, on applique ensuite de façon étanche sur la membrane élastique 405 une cloche 407 et on aspire, comme indiqué par la flèche F1, l'air contenu dans le flacon de façon à établir une pression réduite dans le flacon 402. Lors de l'aspiration, sous l'action de l'air sortant par les ouvertures 465 de la capsule 406, la membrane élastique 405 se déforme en se gonflant, la paroi latérale du chapeau s'écartant de la paroi externe de la jupe 468 ; simultanément, la saillie annulaire 454 de la membrane 405 s'écarte de la jupe 468 de la capsule 406 ; les ouvertures 453 de la membrane 405 et 465 de la capsule 406 mettent en communication le flacon 402 et la cloche 407.To carry out the packaging of the product according to the present invention, the bottle 402 is filled with product P, then the capsule 406 equipped with its elastic membrane 405 is screwed onto the neck 421 of the bottle 402. As illustrated diagrammatically in FIG. 8, we apply then tightly on the elastic membrane 405 a bell 407 and the air contained in the bottle is aspirated, as indicated by the arrow F1 so as to establish a reduced pressure in the bottle 402. During the aspiration, under the action of the air leaving through the openings 465 of the capsule 406, the elastic membrane 405 is deformed by swelling, the side wall of the cap deviating from the external wall of the skirt 468; simultaneously, the annular projection 454 of the membrane 405 departs from the skirt 468 of the capsule 406; the openings 453 of the membrane 405 and 465 of the capsule 406 bring the bottle 402 into communication with the bell 407.

On fixe alors sur la tête 403 le surcapot 404. Le bourrelet annulaire 444 appuie sur la membrane élastique 405 et maintient en position de fermeture ladite membrane 405 en maintenant la saillie 454 appuyée sur la jupe 468, même en cas de repressurisation du flacon 402. Le produit contenu dans le flacon est donc maintenu sous pression réduite au cours du stockage et isolé de l'atmosphère.The overcap 404 is then fixed on the head 403. The annular bead 444 presses on the elastic membrane 405 and maintains said membrane 405 in the closed position while keeping the projection 454 pressed against the skirt 468, even in the event of repressurization of the bottle 402. The product contained in the bottle is therefore kept under reduced pressure during storage and isolated from the atmosphere.

Lorsque l'utilisateur désire prélever le produit contenu dans le flacon, il agit sur le surcapot 404, qui est solidarisé en rotation avec la tête 403 par interaction des stries 467 et 445, et sépare l'ensemble (surcapot 404/tête 403) du flacon 402.When the user wishes to withdraw the product contained in the bottle, he acts on the overcap 404, which is secured in rotation with the head 403 by interaction of the ridges 467 and 445, and separates the assembly (overcap 404 / head 403) from the bottle 402.

On voit que la valve formée par la membrane élastique 405 est maintenue en position fermée étanche pendant le stockage jusqu'à ce que l'utilisateur ouvre le flacon. D'autre part, tout se passe pour l'utilisateur comme si le "bouchon" du flacon, constitué par le surcapot 404 et la tête 403, était formé d'une seule pièce.It can be seen that the valve formed by the elastic membrane 405 is kept in the sealed closed position during storage until the user opens the bottle. On the other hand, everything happens to the user as if the "cap" of the bottle, constituted by the overcap 404 and the head 403, was formed in one piece.

Claims (6)

  1. A method for packaging a product (P) in a container (402) making it possible to ensure a better preservation of the product during storage by establishing by suction a reduced pressure in the said container and/or by introducing into it a gas that is inert in relation to the stored product, wherein after the container (402) has been filled with the product via a neck zone (421), a cap (406) is fixed in a leakproof manner on the said neck zone, through which cap a pressure is established by suction that is lower than atmospheric pressure, and /or an inert gas is introduced by injection, the said cap (406) remaining on the said container and subsequently maintaining the seal of the container (402) during storage, wherein the said cap (406) is associated with a valve (405) formed by a flexible elastic membrane (405) provided with at least one opening (453); an element (407) connected to the suction means is applied to the said valve (405) to establish a reduced pressure, and/or to injection means for introducing an inert gas; the reduced pressure is established and/or the inert gas is introduced into the container through the valve by means of the said element, the opening and the closing of the said valve (405) being effected by deformation of the elastic membrane (405); and finally, the said element (407) is withdrawn, characterized in that a valve (405) is used comprising a plurality of openings (453), the elastic membrane of the valve (405) cooperating with a seat (468) opposite its openings (453,) and a bell (407) is chosen as the element connected to the suction means and/or injection means, which bell is intended to bear on the elastic membrane (405) along a perimeter surrounding all the openings (453) of the said membrane (405).
  2. A packaging unit comprising a container (402) containing a product (P), in the neck zone (421) whereof there is fixed a cap (406) associated with a valve (405) through which a reduced pressure is established and/or an inert gas is introduced into the container (402), wherein the valve (405) is formed by a flexible elastic membrane having the shape of a cylindrical cap having a rim (452) and a top (451), at least one opening (453) being cut in the membrane which can remain closed because of the inherent elasticity of the said membrane, and is capable of opening under the action of a suction and/or injection element at the top of the said membrane, characterized in that the elastic membrane (405) is carried by the cap (406), and that the rim (452) of the cylindrical cap forming the said elastic membrane is joined to the top (451) via a lateral skirt, the membrane having a plurality of openings (453) disposed in the zone joining the said top to the said lateral skirt and opposite the end of a rigid skirt (468) joined to the cap (406), an annular projection (454) carried by the said top bearing on the internal face of the rigid skirt (468), the end of the said rigid skirt (468) being thus tightly held between the said annular projection (454) and the lateral skirt of the elastic membrane (405), the said elastic membrane (405) having a structure allowing a suction and/or injection element to be used which is constituted by a bell (407) intended to bear on the elastic membrane (405) along a perimeter surrounding all the openings (453).
  3. A unit according to claim 2, characterized in that between the zone for mounting the cap (406) on the neck (421) and the end of the rigid skirt (468), provision is made on the one hand for a perforated plate (464) ensuring at the same time the rigidity of the rigid skirt (468) and the passing of the product to be dispensed and, on the other hand, for means ensuring the seal between the cap (406) and the container (402).
  4. A unit according to claim 3, characterized in that a cover cap (404) is fixed on the cap (406) and covers it as well as the valve (405) with which it is associated.
  5. A unit according to claim 3, characterized in that the external side of the cap (406) and/or the internal side of the cover cap (404) is (are) provided with means preventing the said cover cap from rotating relative to the said cap.
  6. A unit according to claims 4 or 5, characterized in that the cover cap (404) has a bead (444) situated on its internal side, the said bead bearing on the elastic membrane (405) substantially opposite the annular projection (454) of the latter, and keeping the lateral skirt of the elastic membrane (405) against the rigid skirt (468) forming a seat.
EP91401462A 1990-06-15 1991-06-05 Method for packaging a product in a container, ensuring product preservation during storage and the corresponding packaging unit Expired - Lifetime EP0462861B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9007496A FR2663291A1 (en) 1990-06-15 1990-06-15 PROCESS FOR THE PACKAGING OF A PRODUCT IN A BOTTLE, ENSURING A BETTER STORAGE OF THE PRODUCT DURING STORAGE AND CORRESPONDING PACKAGING PACKAGE.
FR9007496 1990-06-15

Publications (2)

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EP0462861A1 EP0462861A1 (en) 1991-12-27
EP0462861B1 true EP0462861B1 (en) 1994-04-27

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EP91401462A Expired - Lifetime EP0462861B1 (en) 1990-06-15 1991-06-05 Method for packaging a product in a container, ensuring product preservation during storage and the corresponding packaging unit

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US (1) US5143236A (en)
EP (1) EP0462861B1 (en)
DE (1) DE69101811T2 (en)
FR (1) FR2663291A1 (en)

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Also Published As

Publication number Publication date
US5143236A (en) 1992-09-01
FR2663291B1 (en) 1995-02-24
DE69101811D1 (en) 1994-06-01
DE69101811T2 (en) 1994-10-13
EP0462861A1 (en) 1991-12-27
FR2663291A1 (en) 1991-12-20

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