EP1122190B1 - Aerosol container with pouch and improved gasket - Google Patents
Aerosol container with pouch and improved gasket Download PDFInfo
- Publication number
- EP1122190B1 EP1122190B1 EP01400084A EP01400084A EP1122190B1 EP 1122190 B1 EP1122190 B1 EP 1122190B1 EP 01400084 A EP01400084 A EP 01400084A EP 01400084 A EP01400084 A EP 01400084A EP 1122190 B1 EP1122190 B1 EP 1122190B1
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- EP
- European Patent Office
- Prior art keywords
- edge
- bag
- gasket
- container
- outer container
- 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
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Classifications
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- 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
- B65D83/00—Containers or packages with special means for dispensing contents
- B65D83/14—Containers or packages with special means for dispensing contents for delivery of liquid or semi-liquid contents by internal gaseous pressure, i.e. aerosol containers comprising propellant for a product delivered by a propellant
- B65D83/38—Details of the container body
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- 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
- B65D83/00—Containers or packages with special means for dispensing contents
- B65D83/14—Containers or packages with special means for dispensing contents for delivery of liquid or semi-liquid contents by internal gaseous pressure, i.e. aerosol containers comprising propellant for a product delivered by a propellant
- B65D83/60—Contents and propellant separated
- B65D83/62—Contents and propellant separated by membrane, bag, or the like
Definitions
- the present invention relates to a device of the type "pocket aerosol".
- Such containers are particularly suitable for packaging cosmetic products, including hair products, personal care products, makeup or care.
- Devices of this type are devices adapted to contain and distribute under pressure liquid or pasty materials. They comprise a rigid outer container and a flexible inner container, preferably aluminum or plastic, whose upper edge is fixed to the outer container. They also include a dispensing valve mounted generally on a cup. The bottom of the outer container generally has a closable opening for introducing a propellant into the volume formed between the outer container and the inner container.
- the flexible inner container, or “pocket” generally contains the consumer product, while the annular chamber , between the bag and the outer container or “aerosol casing” is filled with a propellant, that is to say a gas under pressure.
- a propellant that is to say a gas under pressure.
- To dispense the product it causes the opening of the dispensing valve, either by depression or by tilting, via a dispensing head in the form of a push button.
- the pressure exerted by the propellant on the bag acts and expels the product through the dispensing valve out of the bag.
- the aerosol container (outer container) generally comprises a bottom and a cylindrical body, ending at its end opposite the bottom by a curved portion or "dome” whose free edge, configured as a rolled edge, defines an opening.
- a metal disc-shaped piece On the rolled edge of the container, is mounted a metal disc-shaped piece, called "cup".
- the dispensing valve is generally fixed in the center of the cup and is thus in the axis of the pocket aerosol.
- the cup has a peripheral flange for securing the cup by crimping the rolled edge of the outer container.
- the clamping of the cup on the dome is done by swaging, ie by deforming the cup from the inside, so as to press against the inner surface of the dome of the outer container, the deformation generated causing the clamping the collar on the rolled edge.
- the seal between the flange of the cup and the rolled edge of the container is generally provided by an elastic seal.
- the bag In pocket aerosols, the bag is generally attached to the body, at the crimping of the cup on the rolled edge, the bag being suspended by its neck in the axis of the aerosol casing.
- the neck of the pocket ends in its upper part by a dimension rim allowing it on the one hand to fit into the collar of the cup, and secondly to rely on the rolled edge of the dome.
- the rim of the bag is sandwiched between the collar of the cup and the rolled edge.
- the precision of the assembly must ensure the tightness between the three elements; cup, pocket, and rolled edge of the outer container.
- the seal between the bag and the outer container is usually the most delicate because of the fugacity of the propellant, and because of the nature of the material forming the bag.
- the material is generally a plastic material, inelastic, such as polypropylene or polyethylene.
- a device for packaging and dispensing under pressure a product contained in a flexible-walled bag in communication with a valve, said reservoir being disposed in an outer container, a propellant being contained in the volume formed between the outer container and the bag, said valve being mounted on a cup, means for fixing the cup and an open edge of the bag, on an edge of the outer container, a seal sealing, when compressed between the fixing means and the edge of the container, to form a seal between the gas, the product, and the outside, a recess being formed, either by the gasket in the uncompressed position, or by the fixing means, either by the edge of the outer container, so as to ensure a substantially uniform compression of at least a portion of the seal, on the one hand, another of said setback.
- a good seal is achieved between the gas, the product, and the outside, that is, firstly between the gas and the product, secondly between the gas and the outside, and thirdly between the product and the product. outside.
- the seal by positioning the free edge of the pocket substantially opposite the recess, the seal, on an annular zone extending partly on one side of the recess, and partly on the other side of the recess, is compressed substantially the same way.
- the compression zone of the seal is more or less wide, the essential thing being that on each side of the recess, the seal can be compressed adequately over at least part of its width, to achieve the three sealing referred to above .
- a first portion of the seal is sandwiched between the edge of the outer container and the open edge of the bag, or between the open edge of the bag and the fastening means.
- Such partial overlap of the seal, the edge of the container and the fastening means ensures a good seal between the gas, the product, and the outside.
- the portion of the seal, sandwiched between the edge of the outer container and the open edge of the bag, or between the open edge of the bag and the fixing means consists of an inner annular portion of said seal. sealing.
- the open edge of the pocket is disposed facing the recess, and preferably substantially in contact with the latter. From such positioning, it follows that the pocket does not generate extra thickness, may significantly modify the degree of compression of the seal, when sandwiched between the container and the valve holder cup.
- the seal is formed of a separate element of the bag. It ensures a much better seal.
- the sealing function being performed by a separate element of the pocket, it is possible to use materials to achieve the pocket, offering a good better compatibility with certain products to be packaged, in particular certain cosmetic products.
- a second portion of the seal is clamped directly between the edge of the container and the fastening means.
- the portion of the seal, enclosed directly between the edge of the container and the fixing means is formed of an outer annular portion of the seal.
- the recess is of thickness substantially equal to the thickness of the open edge of the pocket.
- the portion of the seal located opposite the edge of the bag undergoes a compression ratio substantially identical to the compression ratio of the portion of the seal extending beyond the free edge of the pocket.
- the gas / product, product / exterior and gas / exterior seals are of good quality.
- the recess is formed by the seal.
- the seal has an inner annular portion of smaller thickness, the recess being formed on one or other of the faces of the seal according to the respective position of the seal relative to the pocket, the means of fastening, and at the edge of the outer container.
- Such a seal can be obtained from molding, or cutting.
- the recess is formed by a folded annular edge, or "collar" of the cup, constituting said fixing means.
- the recess is formed by a folded annular edge or "rolled edge" of the outer container.
- the seal According to a first mode of positioning the seal, it is disposed over a portion of its radial width between the free edge of the bag and the fastening means.
- the seal is disposed on a part of its radial width between the free edge of the pocket and the rolled edge of the outer container.
- the thickness of the recess may be between 0.03 mm and 1 mm, and preferably between 0.1 mm and 0.5 mm.
- Attaching the cup and an open edge of the bag to an edge of the outer container can be achieved by crimping or swaging.
- the aerosol device 1 shown in Figure 1 comprises an outer container 2 having a bottom 9, and the upper part 3 ends substantially domed.
- the dome ends with a rolled edge 4 delimiting an opening 5.
- a flexible pouch 6, containing the product to be dispensed P, is disposed inside the container 2.
- the annular chamber 8, between the pouch 6 and the outer container 2 is filled with a propellant G.
- a valve 10 is disposed in the bottom 9 of the outer container so as to allow the introduction of the propellant into the annular volume 8.
- the dispensing valve 12 is fixed generally in the center of the cup 11 and is thus in the axis of the aerosol pocket.
- the valve 12 comprises a valve stem 14 whose actuation is generally carried out by means of a push button (not shown).
- the cup 11 has a peripheral flange 13 intended to ensure the attachment of the cup 11 by swaging, ie by deforming the cup 11 from the inside, so as to press against the inner surface of the dome 3 of the outer container 2, the deformation generated causing the clamping of the flange 13 on the rolled edge 4.
- the seal between the flange 13 of the cup 11 and the rolled edge 4 of the container is generally provided by an elastic seal 20 which will be discussed in more detail thereafter.
- the pocket 6 is fixed at the crimping of the cup 11 on the rolled edge 4, the bag being suspended by its neck in the axis of the aerosol casing.
- the neck of the pocket terminates at its upper part by a rim 15 of dimension allowing it on the one hand to fit into the collar 13 of the cup, and on the other hand to rest on the rolled edge 4, via the seal 20.
- the rim 15 of the bag 6 is sandwiched between the collar 13 of the cup 11 and the rolled edge 4.
- the assembly thus formed can be mounted in an industrial manner similarly to that described in patent FR-A-2 310 287 referred to above.
- dispense the product causes the opening of the valve, either by depression or by tilting, via a dispensing head in the form of a push button.
- the pressure exerted by the propellant on the bag acts and expels the product through the dispensing valve out of the bag.
- FIG. 1 illustrates more precisely how the gas / product / exterior seal is obtained according to a first embodiment.
- the seal 20, as shown in the non-mounted position in FIG. 2 is in the form of a flat annular element 21 comprising an inner annular portion 23 of smaller thickness and an outer annular portion 22 of greater thickness.
- a recess 24 is thus formed between the inner annular portion 23 and the outer annular portion 22.
- the recess 24 is of height substantially equal to the thickness of the free edge 15 of the pocket 6.
- the seal 20 rests directly on the rolled edge 4 of the container 2. Due to the presence of the recess 24, when the free edge 15 of the pocket 6 rests on the portion internal ring 23 of the seal 20, the free edge does not form extra thickness with respect to the upper surface of the outer annular portion 22.
- the compression of the gasket 20 is substantially uniform over an annular zone extending both from one side of the recess 24, and from the other side of the recess 24.
- the seals between the annular volume 8 and the outside, between the annular volume 8 and the pocket 6, and between the pocket 6 and the outside, are remarkable.
- the seal 20 is disposed on the free edge 15 of the pocket 6.
- the inner annular portion 23 of the seal 20 is in direct contact with the flange 13 of the cup 11.
- the seal 20 illustrated in FIG. 2 has been turned over.
- the free edge does not form extra thickness by relative to the lower surface of the outer annular portion 22.
- the compression of the gasket 20 is substantially uniform over a zone annular extending both on one side of the recess 24, and on the other side of the recess 24.
- the seals obtained are similar to those obtained with the previous variant.
- FIG. 5 illustrates a second embodiment of the device according to the invention.
- the general configuration of the device 1 is identical to that of the device 1 of FIG. 1, and therefore does not require any additional description. It should be noted, however, that according to this embodiment, the cup 11 is mounted by crimping the collar 13 on the rolled edge 4.
- the difference between the two embodiments lies in the realization of the seals, in particular in the position of the detachment. This difference between the two embodiments will be described in more detail with reference to the "magnifying glass" of FIG. 5.
- the seal 20 is of constant thickness.
- the rolled edge 4 forms a recess 32 separating an inner annular portion 30 of smaller thickness, an outer annular portion 31 of greater thickness.
- the difference in thickness corresponds substantially to the thickness of the free edge 15 of the pocket 6.
- the compression of the gasket 20 is substantially uniform over an annular zone extending in part, on one side of the recess 32, and partly, on the other side of the recess 32.
- the seals between the annular volume 8 and the outside, between the annular volume 8 and the pocket 6, and between the pocket 6 and the outside, are remarkable. .
- the seal 20 is, at rest, of constant thickness.
- the rolled edge 4 of the outer container 2 is also thick constant.
- the free edge 15 of the bag 6 is disposed between the seal 20 and the rolled edge 4 of the outer container.
- the flange 13 comprises an inner annular portion 40 connected to an outer annular portion 41 by a recess 42 whose height is substantially equal to the thickness of the free edge 15 of the pocket 6.
- a corresponding recess 43 exists inside the collar.
- the recesses 42 and 43 can be obtained by forming the metal during the striking of the flange.
- the seal 20 of constant thickness, is disposed between the free edge 15 of the pocket 6 and the rolled edge 4 of the outer container.
- the free edge 15 of the bag 6 is disposed between the seal 20 and the flange 13 of the cup 11, abutting against the recess 43.
- the free edge 15 of the bag 6 does not generate extra thickness with respect to the surface In this way, the compression of the seal 20 is substantially uniform over an annular zone extending partly, on one side of the recess 43, and partly on the other side of the recess 43.
- the results in terms of tightness are similar to those of the variant of FIG.
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Abstract
Description
La présente invention a trait à un dispositif de type "aérosol à poche". De tels récipients sont adaptés notamment au conditionnement de produits cosmétiques, notamment des produits capillaires, des produits d'hygiène corporelle, de maquillage ou de soin.The present invention relates to a device of the type "pocket aerosol". Such containers are particularly suitable for packaging cosmetic products, including hair products, personal care products, makeup or care.
Les dispositifs de ce type sont des dispositifs propres à contenir et à distribuer sous pression des matières liquides ou pâteuses. Ils comportent un récipient externe rigide et un récipient interne souple, de préférence en aluminium ou en matière plastique, dont le bord supérieur est fixé au récipient externe. Ils comportent également une valve de distribution montée généralement sur une coupelle. Le fond du récipient externe comporte généralement une ouverture obturable destinée à l'introduction d'un agent propulseur dans le volume formé entre le récipient externe et le récipient interne.Devices of this type are devices adapted to contain and distribute under pressure liquid or pasty materials. They comprise a rigid outer container and a flexible inner container, preferably aluminum or plastic, whose upper edge is fixed to the outer container. They also include a dispensing valve mounted generally on a cup. The bottom of the outer container generally has a closable opening for introducing a propellant into the volume formed between the outer container and the inner container.
Dans les appareils de ce genre, que l'on peut aussi appeler récipients aérosols à deux chambres, ou plus simplement "aérosol à poche", le récipient interne souple, ou "poche" contient généralement le produit de consommation, tandis que la chambre annulaire, comprise entre la poche et le récipient externe ou "boîtier aérosol" est remplie d'un agent propulseur, c'est à dire d'un gaz sous pression. Pour distribuer du produit, on provoque l'ouverture de la valve de distribution, soit par enfoncement soit par basculement, via une tête de distribution sous forme d'un bouton poussoir. La pression exercée par l'agent propulseur sur la poche agit et chasse le produit par la valve de distribution hors de la poche.In devices of this kind, which can also be called two-chamber aerosol containers, or more simply "pocket aerosol", the flexible inner container, or "pocket" generally contains the consumer product, while the annular chamber , between the bag and the outer container or "aerosol casing" is filled with a propellant, that is to say a gas under pressure. To dispense the product, it causes the opening of the dispensing valve, either by depression or by tilting, via a dispensing head in the form of a push button. The pressure exerted by the propellant on the bag acts and expels the product through the dispensing valve out of the bag.
Le récipient aérosol (récipient extérieur) comporte généralement un fond et un corps cylindrique, se terminant à son extrémité opposée au fond par une partie bombée ou "dôme" dont un bord libre, configuré sous forme d'un bord roulé, délimite une ouverture. Sur le bord roulé du récipient, est montée une pièce en forme de disque métallique, appelée "coupelle". La valve de distribution est fixée généralement au centre de la coupelle et se trouve ainsi dans l'axe de l'aérosol à poche. La coupelle présente une collerette périphérique destinée à assurer la fixation de la coupelle par sertissage sur le bord roulé du récipient extérieur.The aerosol container (outer container) generally comprises a bottom and a cylindrical body, ending at its end opposite the bottom by a curved portion or "dome" whose free edge, configured as a rolled edge, defines an opening. On the rolled edge of the container, is mounted a metal disc-shaped piece, called "cup". The dispensing valve is generally fixed in the center of the cup and is thus in the axis of the pocket aerosol. The cup has a peripheral flange for securing the cup by crimping the rolled edge of the outer container.
Alternativement, le serrage de la coupelle sur le dôme se fait par dudgeonnage, c'est à dire en déformant la coupelle depuis l'intérieur, de manière à la plaquer contre la surface interne du dôme du récipient externe, la déformation engendrée provoquant le serrage de la collerette sur le bord roulé. L'étanchéité entre la collerette de la coupelle et le bord roulé du récipient est généralement assurée par un joint élastique.Alternatively, the clamping of the cup on the dome is done by swaging, ie by deforming the cup from the inside, so as to press against the inner surface of the dome of the outer container, the deformation generated causing the clamping the collar on the rolled edge. The seal between the flange of the cup and the rolled edge of the container is generally provided by an elastic seal.
Dans les aérosols à poche, la poche est généralement fixée au corps, au niveau du sertissage de la coupelle sur le bord roulé, la poche étant suspendue par son col dans l'axe du boîtier aérosol. Le col de la poche se termine en sa partie supérieure par un rebord de dimension lui permettant d'une part de s'insérer dans la collerette de la coupelle, et d'autre part de s'appuyer sur le bord roulé du dôme. Au cours du sertissage ou dudgeonnage de la coupelle, le rebord de la poche se trouve enserré entre la collerette de la coupelle et le bord roulé. La précision du montage doit assurer l'étanchéité entre les trois éléments ; coupelle, poche, et bord roulé du récipient extérieur. L'étanchéité entre la poche et le récipient extérieur est généralement la plus délicate en raison de la fugacité du gaz propulseur, et en raison de la nature du matériau formant la poche. En effet, le matériau est généralement un matériau plastique, peu élastique, tel que du polypropylène ou polyéthylène.In pocket aerosols, the bag is generally attached to the body, at the crimping of the cup on the rolled edge, the bag being suspended by its neck in the axis of the aerosol casing. The neck of the pocket ends in its upper part by a dimension rim allowing it on the one hand to fit into the collar of the cup, and secondly to rely on the rolled edge of the dome. During the crimping or swaging of the cup, the rim of the bag is sandwiched between the collar of the cup and the rolled edge. The precision of the assembly must ensure the tightness between the three elements; cup, pocket, and rolled edge of the outer container. The seal between the bag and the outer container is usually the most delicate because of the fugacity of the propellant, and because of the nature of the material forming the bag. Indeed, the material is generally a plastic material, inelastic, such as polypropylene or polyethylene.
Dans la pratique, la présence du rebord de la poche entre le bord roulé du récipient et la collerette de la coupelle, génère une surépaisseur qui nuit à la déformation uniforme du joint d'étanchéité, lequel est généralement sous forme d'un élément annulaire plat, d'épaisseur constante. En effet, lorsqu'une portion annulaire interne du joint est disposée entre la collerette et le rebord de la poche, le joint est écrasé de manière satisfaisante dans ladite portion annulaire interne. Par contre, son écrasement est sensiblement plus faible pour sa partie externe, se prolongeant au delà du rebord de la poche, c'est à dire se trouvant directement entre la collerette et le bord roulé du récipient. De ce fait, l'étanchéité entre le gaz et l'extérieur laisse à désirer. Une telle configuration est représentée aux figures 19a et 19b de la demande WO99/16684.In practice, the presence of the rim of the pocket between the rolled edge of the container and the flange of the cup, generates an extra thickness which impairs the uniform deformation of the seal, which is generally in the form of a flat annular element , of constant thickness. Indeed, when an inner annular portion of the seal is disposed between the flange and the rim of the pocket, the seal is crushed satisfactorily in said inner annular portion. On the other hand, its crushing is substantially lower for its external part, extending beyond the rim of the pocket, ie being directly between the flange and the rolled edge of the container. As a result, the seal between the gas and the outside leaves something to be desired. Such a configuration is shown in Figures 19a and 19b of the application WO99 / 16684.
A l'inverse, lorsque, à la manière de ce qui est décrit dans le brevet FR-A-2 310 287, une portion annulaire interne du joint est disposée entre le bord roulé du bidon et le rebord de la poche, le joint est écrasé de manière satisfaisante dans ladite portion annulaire interne. Par contre, son écrasement est sensiblement plus faible pour sa partie externe, se prolongeant au delà du rebord de la poche, c'est à dire se trouvant directement entre la collerette et le bord roulé du récipient. De ce fait, l'étanchéité entre le produit et l'extérieur laisse à désirer. Le brevet mentionné ci-avant propose éventuellement de prévoir un second joint dans le fond de la collerette de la coupelle. Cette solution présente l'inconvénient d'augmenter le coût de revient global du dispositif aérosol.Conversely, when, in the manner of what is described in FR-A-2 310 287, an inner annular portion of the seal is disposed between the rolled edge of the can and the rim of the bag, the seal is satisfactorily crushed in said inner annular portion. On the other hand, its crushing is substantially lower for its external part, extending beyond the rim of the pocket, ie being directly between the flange and the rolled edge of the container. As a result, the seal between the product and the exterior leaves something to be desired. The aforementioned patent optionally proposes to provide a second seal in the bottom of the flange of the cup. This solution has the disadvantage of increasing the overall cost of the aerosol device.
Aussi, est-ce un des objets de l'invention que de réaliser un dispositif du type précité, résolvant en tout ou partie les problèmes d'étanchéité discutés ci-avant en référence aux dispositifs conventionnels.Also, is it an object of the invention to provide a device of the aforementioned type, solving all or part of the sealing problems discussed above with reference to conventional devices.
C'est en particulier un objet de l'invention que de fournir un dispositif aérosol à étanchéité améliorée, simple et économique à réaliser.It is particularly an object of the invention to provide an aerosol device with improved sealing, simple and economical to achieve.
D'autres objets encore apparaîtront dans la description détaillée qui suit.Still other objects will appear in the following detailed description.
Selon l'invention, ces objets sont atteints en réalisant un dispositif pour le conditionnement et la distribution sous pression d'un produit contenu dans une poche à parois souples en communication avec une valve, ledit réservoir étant disposé dans un récipient extérieur, un gaz propulseur étant contenu dans le volume formé entre le récipient extérieur et la poche, ladite valve étant montée sur une coupelle, des moyens permettant la fixation de la coupelle et d'un bord ouvert de la poche, sur un bord du récipient extérieur, un joint d'étanchéité permettant, lorsqu'il est comprimé entre les moyens de fixation et le bord du récipient, de former étanchéité entre le gaz, le produit, et l'extérieur, un décrochement étant formé, soit par le joint en position non comprimée, soit par les moyens de fixation, soit par le bord du récipient extérieur, de manière à assurer une compression sensiblement uniforme d'au moins une partie du joint d'étanchéité, de part et d'autre dudit décrochement.According to the invention, these objects are achieved by providing a device for packaging and dispensing under pressure a product contained in a flexible-walled bag in communication with a valve, said reservoir being disposed in an outer container, a propellant being contained in the volume formed between the outer container and the bag, said valve being mounted on a cup, means for fixing the cup and an open edge of the bag, on an edge of the outer container, a seal sealing, when compressed between the fixing means and the edge of the container, to form a seal between the gas, the product, and the outside, a recess being formed, either by the gasket in the uncompressed position, or by the fixing means, either by the edge of the outer container, so as to ensure a substantially uniform compression of at least a portion of the seal, on the one hand, another of said setback.
Ainsi, on réalise une bonne étanchéité entre le gaz, le produit, et l'extérieur, c'est à dire, premièrement entre le gaz et le produit, deuxièmement entre le gaz et l'extérieur, et troisièmement entre le produit et l'extérieur. En effet, en positionnant le bord libre de la poche sensiblement en regard du décrochement, le joint d'étanchéité, sur une zone annulaire s'étendant pour partie, d'un côté du décrochement, et pour partie, de l'autre côté du décrochement, est comprimé de façon sensiblement identique. La zone de compression du joint est plus ou moins large, l'essentiel étant que de chaque côté du décrochement, le joint puisse être comprimé de manière adéquate, sur au moins une partie de sa largeur, pour réaliser les trois étanchéités visées ci-avant.Thus, a good seal is achieved between the gas, the product, and the outside, that is, firstly between the gas and the product, secondly between the gas and the outside, and thirdly between the product and the product. outside. Indeed, by positioning the free edge of the pocket substantially opposite the recess, the seal, on an annular zone extending partly on one side of the recess, and partly on the other side of the recess, is compressed substantially the same way. The compression zone of the seal is more or less wide, the essential thing being that on each side of the recess, the seal can be compressed adequately over at least part of its width, to achieve the three sealing referred to above .
Avantageusement, une première portion du joint d'étanchéité est enserrée entre le bord du récipient extérieur et le bord ouvert de la poche, ou entre le bord ouvert de la poche et les moyens de fixation. Un tel recouvrement partiel du joint, du bord du récipient et des moyens de fixation, est garant d'une bonne étanchéité entre le gaz, le produit, et l'extérieur.Advantageously, a first portion of the seal is sandwiched between the edge of the outer container and the open edge of the bag, or between the open edge of the bag and the fastening means. Such partial overlap of the seal, the edge of the container and the fastening means, ensures a good seal between the gas, the product, and the outside.
De préférence, la portion du joint d'étanchéité, enserrée entre le bord du récipient extérieur et le bord ouvert de la poche, ou entre le bord ouvert de la poche et les moyens de fixation, est constituée d'une partie annulaire intérieure dudit joint d'étanchéité.Preferably, the portion of the seal, sandwiched between the edge of the outer container and the open edge of the bag, or between the open edge of the bag and the fixing means, consists of an inner annular portion of said seal. sealing.
De manière préférentielle, le bord ouvert de la poche est disposé en regard du décrochement, et de préférence, sensiblement au contact de ce dernier. D'un tel positionnement, il résulte que la poche ne génère pas de surépaisseur, susceptible de modifier de façon sensible le degré de compression du joint d'étanchéité, lorsqu'il est pris en sandwich entre le récipient et la coupelle porte-valve.Preferably, the open edge of the pocket is disposed facing the recess, and preferably substantially in contact with the latter. From such positioning, it follows that the pocket does not generate extra thickness, may significantly modify the degree of compression of the seal, when sandwiched between the container and the valve holder cup.
Avantageusement, et à l'inverse de certaines configurations décrites notamment dans le document WO99/16684 évoqué ci-avant, le joint d'étanchéité est formé d'un élément distinct de la poche. On assure une bien meilleure étanchéité. En outre, la fonction étanchéité étant réalisée par un élément distinct de la poche, il est possible d'utiliser des matériaux pour réaliser la poche, offrant une bien meilleure compatibilité avec certains produits à conditionner, notamment certains produits cosmétiques.Advantageously, and contrary to certain configurations described in particular in WO99 / 16684 mentioned above, the seal is formed of a separate element of the bag. It ensures a much better seal. In addition, the sealing function being performed by a separate element of the pocket, it is possible to use materials to achieve the pocket, offering a good better compatibility with certain products to be packaged, in particular certain cosmetic products.
De préférence encore, une seconde portion du joint d'étanchéité est enserrée directement entre le bord du récipient et les moyens de fixation. Encore une fois, cette configuration est garante d'une bonne étanchéité entre le produit, le gaz, et l'extérieur.More preferably, a second portion of the seal is clamped directly between the edge of the container and the fastening means. Again, this configuration is a guarantee of a good seal between the product, the gas, and the outside.
Avantageusement, la portion du joint d'étanchéité, enserrée directement entre le bord du récipient et les moyens de fixation, est formée d'une portion annulaire extérieure du joint d'étanchéité.Advantageously, the portion of the seal, enclosed directly between the edge of the container and the fixing means, is formed of an outer annular portion of the seal.
De préférence, le décrochement est d'épaisseur sensiblement égale à l'épaisseur du bord ouvert de la poche. Ainsi, lorsque le bord libre de la poche est situé en regard de la zone en creux (soit du joint, soit de la collerette, soit du bord replié du récipient) formée par le décrochement, la partie du joint située en regard du bord de la poche subit un taux de compression sensiblement identique au taux de compression de la partie du joint s'étendant au delà du bord libre de la poche. De ce fait, les étanchéités gaz/produit, produit/extérieur, et gaz/extérieur, sont de bonne qualité.Preferably, the recess is of thickness substantially equal to the thickness of the open edge of the pocket. Thus, when the free edge of the bag is located opposite the recessed area (either of the seal, the collar, or the folded edge of the container) formed by the recess, the portion of the seal located opposite the edge of the bag undergoes a compression ratio substantially identical to the compression ratio of the portion of the seal extending beyond the free edge of the pocket. As a result, the gas / product, product / exterior and gas / exterior seals are of good quality.
Selon un premier mode de réalisation, le décrochement est formé par le joint d'étanchéité. Ainsi, le joint d'étanchéité présente une portion annulaire interne de plus faible épaisseur, le décrochement étant formé sur l'une ou l'autre des faces du joint en fonction de la position respective du joint par rapport à la poche, aux moyens de fixation, et au bord du récipient externe. Un tel joint peut être obtenu de moulage, ou de découpe.According to a first embodiment, the recess is formed by the seal. Thus, the seal has an inner annular portion of smaller thickness, the recess being formed on one or other of the faces of the seal according to the respective position of the seal relative to the pocket, the means of fastening, and at the edge of the outer container. Such a seal can be obtained from molding, or cutting.
Alternativement, le décrochement est formé par un bord annulaire replié, ou "collerette" de la coupelle, constituant lesdits moyens de fixation.Alternatively, the recess is formed by a folded annular edge, or "collar" of the cup, constituting said fixing means.
Alternativement encore, le décrochement est formé par un bord annulaire replié, ou "bord roulé" du récipient extérieur.Alternatively again, the recess is formed by a folded annular edge or "rolled edge" of the outer container.
Selon un premier mode de positionnement du joint, celui-ci est disposé sur une partie de sa largeur radiale entre le bord libre de la poche et les moyens de fixation.According to a first mode of positioning the seal, it is disposed over a portion of its radial width between the free edge of the bag and the fastening means.
Selon un second mode de positionnement du joint, celui-ci est disposé sur une partie de sa largeur radiale entre le bord libre de la poche et le bord roulé du récipient extérieur.According to a second mode of positioning of the seal, it is disposed on a part of its radial width between the free edge of the pocket and the rolled edge of the outer container.
L'épaisseur du décrochement peut être comprise entre 0,03 mm et 1 mm, et de préférence, entre 0,1 mm et 0,5 mm.The thickness of the recess may be between 0.03 mm and 1 mm, and preferably between 0.1 mm and 0.5 mm.
La fixation de la coupelle et d'un bord ouvert de la poche, sur un bord du récipient extérieur peut être obtenue par sertissage ou par dudgeonnage.Attaching the cup and an open edge of the bag to an edge of the outer container can be achieved by crimping or swaging.
L'invention consiste, mises à part les dispositions exposées ci-dessus, en un certain nombre d'autres dispositions qui seront explicitées ci-après, à propos d'exemples de réalisation non limitatifs, décrits en référence aux figures annexées, parmi lesquelles :
- les figures 1-3 illustrent un premier mode de réalisation du dispositif selon l'invention dans lequel le décrochement est formé par le joint d'étanchéité;
- la figure 4 illustre un second mode de réalisation du dispositif selon l'invention dans lequel le décrochement est formé par la coupelle porte-valve ;
- la figure 5 illustre un troisième mode de réalisation du dispositif selon l'invention dans lequel le décrochement est formé par le bord replié du récipient ; et
- la figure 6 est une variante de la figure 4.
- Figures 1-3 illustrate a first embodiment of the device according to the invention wherein the recess is formed by the seal;
- FIG. 4 illustrates a second embodiment of the device according to the invention in which the recess is formed by the valve holder cup;
- Figure 5 illustrates a third embodiment of the device according to the invention wherein the recess is formed by the folded edge of the container; and
- Figure 6 is a variant of Figure 4.
Le dispositif aérosol 1 représenté à la figure 1 comprend un récipient extérieur 2 comportant un fond 9, et dont la partie supérieure 3 se termine sensiblement en forme de dôme. Le dôme se termine par un bord roulé 4 délimitant une ouverture 5. Une poche souple 6, contenant le produit à distribuer P, est disposée à l'intérieur du récipient 2. La chambre annulaire 8, comprise entre la poche 6 et le récipient externe 2 est remplie d'un agent propulseur G. Une valve 10 est disposée dans le fond 9 du récipient extérieur de manière à permettre l'introduction du propulseur dans le volume annulaire 8.The
Sur le bord roulé 4 du récipient, est montée une pièce en forme de disque métallique, appelée "coupelle" 11. La valve de distribution 12 est fixée généralement au centre de la coupelle 11 et se trouve ainsi dans l'axe de l'aérosol à poche. La valve 12 comprend une tige de valve 14 dont l'actionnement est généralement réalisé au moyen d'un bouton poussoir (non représenté).On the rolled
La coupelle 11 présente une collerette périphérique 13 destinée à assurer la fixation de la coupelle 11 par dudgeonnage, c'est à dire en déformant la coupelle 11 depuis l'intérieur, de manière à la plaquer contre la surface interne du dôme 3 du récipient externe 2, la déformation engendrée provoquant le serrage de la collerette 13 sur le bord roulé 4. L'étanchéité entre la collerette 13 de la coupelle 11 et le bord roulé 4 du récipient est généralement assurée par un joint élastique 20 dont on parlera plus en détail par la suite.The
La poche 6 est fixée au niveau du sertissage de la coupelle 11 sur le bord roulé 4, la poche étant suspendue par son col dans l'axe du boîtier aérosol. Le col de la poche se termine en sa partie supérieure par un rebord 15 de dimension lui permettant d'une part de s'insérer dans la collerette 13 de la coupelle, et d'autre part de s'appuyer sur le bord roulé 4, via le joint 20. Au cours du sertissage de la coupelle 11, le rebord 15 de la poche 6 se trouve enserré entre la collerette 13 de la coupelle 11 et le bord roulé 4.The
L'ensemble ainsi formé peut être monté en industriel de manière similaire à ce qui est décrit dans le brevet FR-A-2 310 287 auquel il a été fait référence ci-avant.The assembly thus formed can be mounted in an industrial manner similarly to that described in patent FR-A-2 310 287 referred to above.
Pour distribuer du produit, on provoque l'ouverture de la valve, soit par enfoncement soit par basculement, via une tête de distribution sous forme d'un bouton poussoir. La pression exercée par l'agent propulseur sur la poche agit et chasse le produit par la valve de distribution hors de la poche.To dispense the product, it causes the opening of the valve, either by depression or by tilting, via a dispensing head in the form of a push button. The pressure exerted by the propellant on the bag acts and expels the product through the dispensing valve out of the bag.
La "loupe" de la figure 1, ainsi que les figures 2 et 3 illustrent de manière plus précise comment l'étanchéité gaz/produit/extérieur est obtenue selon un premier mode de réalisation.The "magnifying glass" of FIG. 1, as well as FIGS. 2 and 3, illustrate more precisely how the gas / product / exterior seal is obtained according to a first embodiment.
Selon ce mode de réalisation, le joint 20, tel que représenté en position non montée à la figure 2 se présente sous forme d'un élément annulaire plat 21 comportant une partie annulaire intérieure 23 de plus faible épaisseur et une partie annulaire extérieure 22 d'épaisseur plus importante. Un décrochement 24 est ainsi formé entre la partie annulaire intérieure 23 et la partie annulaire extérieure 22. Le décrochement 24 est de hauteur sensiblement égale à l'épaisseur du bord libre 15 de la poche 6.According to this embodiment, the
Dans la variante illustrée par la "loupe" de la figure 1, le joint 20 repose directement sur le bord roulé 4 du récipient 2. En raison de la présence du décrochement 24, lorsque le bord libre 15 de la poche 6 repose sur la portion annulaire interne 23 du joint 20, le bord libre ne forme pas de surépaisseur par rapport à la surface supérieure de la partie annulaire extérieure 22. Ainsi, lors du serrage de la collerette 13 sur le bord roulé 4, tel que représenté à la figure 1, la compression du joint 20 est sensiblement uniforme sur une zone annulaire s'étendant à la fois d'un côté du décrochement 24, et de l'autre côté du décrochement 24. De ce fait, les étanchéités entre le volume annulaire 8 et l'extérieur, entre le volume annulaire 8 et la poche 6, et entre la poche 6 et l'extérieur, sont remarquables.In the variant illustrated by the "magnifying glass" of Figure 1, the
Dans la variante illustrée par la "loupe" de la figure 3, le joint 20 est disposé sur le bord libre 15 de la poche 6. Ainsi, la partie annulaire intérieure 23 du joint 20 est en contact directement avec la collerette 13 de la coupelle 11. Autrement dit, par rapport à la "loupe" de la figure 1, le joint 20 illustré à la figure 2 a été retourné. De la même manière que pour le mode de réalisation précédent, en raison de la présence du décrochement 24, lorsque la portion annulaire interne 23 du joint 20 repose sur le bord libre 15 de la poche 6, le bord libre ne forme pas de surépaisseur par rapport à la surface inférieure de la partie annulaire extérieure 22. Ainsi, lors du serrage de la collerette 13 sur le bord roulé 4, tel que représenté à la figure 3, la compression du joint 20 est sensiblement uniforme sur une zone annulaire s'étendant à la fois d'un côté du décrochement 24, et de l'autre côté du décrochement 24. Les étanchéités obtenues sont similaires à celles obtenues avec la variante précédente.In the variant illustrated by the "magnifying glass" of Figure 3, the
La figure 5 illustre un second mode de réalisation du dispositif selon l'invention. La configuration générale du dispositif 1 est identique à celle du dispositif 1 de la figure 1, et par conséquent, ne nécessite pas de description supplémentaire. Il est à noter toutefois que selon ce mode de réalisation, la coupelle 11 est montée par sertissage extérieur de la collerette 13 sur le bord roulé 4. La différence entre les deux modes de réalisation tient à la réalisation des étanchéités, en particulier à la position du décrochement. Cette différence entre les deux modes de réalisation va être décrite plus en détail en référence à la "loupe" de la figure 5.FIG. 5 illustrates a second embodiment of the device according to the invention. The general configuration of the
Ainsi qu'il apparaît plus clairement à la "loupe" de la figure 5, le joint 20 est d'épaisseur constante. Le bord roulé 4 forme un décrochement 32 séparant une portion annulaire intérieure 30 de plus faible épaisseur, d'une portion annulaire extérieure 31 d'épaisseur plus importante. La différence d'épaisseur correspond sensiblement à l'épaisseur du bord libre 15 de la poche 6. Ainsi, lorsque le bord libre 15 de la poche 6 repose sur la portion annulaire intérieure 30 du bord roulé 4, sensiblement en butée contre le décrochement 32, il ne forme pas de surépaisseur par rapport à la surface supérieure de la portion annulaire extérieure. Ainsi, lors du sertissage de la collerette 13 sur le bord roulé 4, tel que représenté à la figure 5, la compression du joint 20 est sensiblement uniforme sur une zone annulaire s'étendant pour partie, d'un côté du décrochement 32, et pour partie, de l'autre côté du décrochement 32. De ce fait, les étanchéités entre le volume annulaire 8 et l'extérieur, entre le volume annulaire 8 et la poche 6, et entre la poche 6 et l'extérieur, sont remarquables.As it appears more clearly in the "magnifying glass" of FIG. 5, the
Les figures 4 et 6 auxquelles il est maintenant fait référence, illustrent un troisième mode de réalisation du dispositif selon l'invention, la figure 4 étant une variante de la figure 6.FIGS. 4 and 6, to which reference is now made, illustrate a third embodiment of the device according to the invention, FIG. 4 being a variant of FIG.
Dans le mode de réalisation de la figure 6, le joint 20 est, au repos, d'épaisseur constante. Le bord roulé 4 du récipient extérieur 2 est également d'épaisseur constante. Le bord libre 15 de la poche 6 est disposé entre le joint 20 et le bord roulé 4 du récipient extérieur. La collerette 13 comprend une partie annulaire intérieure 40 reliée à une partie annulaire extérieure 41 par un décrochement 42 dont la hauteur est sensiblement égale à l'épaisseur du bord libre 15 de la poche 6. Un décrochement correspondant 43 existe à l'intérieur de la collerette. Les décrochements 42 et 43 peuvent être obtenus par formage du métal lors de la frappe de la collerette. Ainsi, lors du sertissage de la collerette 13 sur le bord roulé 4, tel que représenté à la figure 6, et en raison de la présence des décrochements 42 et 43, la compression du joint 20 est sensiblement uniforme sur une zone annulaire s'étendant pour partie, d'un côté du décrochement 43, et pour partie, de l'autre côté du décrochement 43. De ce fait, les étanchéités requises sont bonnes.In the embodiment of FIG. 6, the
Dans la variante illustrée à la "loupe" de la figure 4, le joint 20, d'épaisseur constante, est disposé entre le bord libre 15 de la poche 6 et le bord roulé 4 du récipient extérieur. Le bord libre 15 de la poche 6 est disposé entre le joint 20 et la collerette 13 de la coupelle 11, en butée contre le décrochement 43. Ainsi, le bord libre 15 de la poche 6 ne génère pas de surépaisseur par rapport à la surface interne de la collerette 13. De ce fait, la compression du joint 20 est sensiblement uniforme sur une zone annulaire s'étendant pour partie, d'un côté du décrochement 43, et pour partie, de l'autre côté du décrochement 43. Les résultats en terme d'étanchéité sont similaires à ceux de la variante de la figure 6.In the variant illustrated in the "magnifying glass" of Figure 4, the
Dans la description détaillée qui précède, il a été fait référence à des modes de réalisation préférés de l'invention. Il est évident que des variantes peuvent y être apportées sans s'écarter de la définition de l'invention telle que revendiquée ci-après.In the foregoing detailed description, reference has been made to preferred embodiments of the invention. It is obvious that variations can be made without departing from the definition of the invention as claimed hereinafter.
Claims (17)
- Device (1) for the packaging and dispensing under pressure of a product (P) contained in a flexible-walled bag (6) in communication with a valve (12), the said bag (6) being arranged in an outer container (2), a propellant gas (G) being contained in the volume (8) formed between the outer container (2) and the bag (6), the said valve (12) being mounted on a cup (11), means (13) enabling the cup (11) and an open edge (15) of the bag (6) to be fixed to an edge (4) of the outer container, a gasket (20) enabling the gas, the product and the external environment to be sealed off from each other when the gasket is compressed between the fixing means (13) and the edge (4) of the container, characterized in that the said device comprises a step (24, 32, 43) formed either by the gasket (20) in a noncompressed position, or by the fixing means (13), or by the edge (4) of the outer container in such a way as to give essentially uniform compression of at least part of the gasket (20) on both sides of the said step (24, 32, 42, 43).
- Device according to Claim 1, characterized in that at least part (23) of the gasket (20) is gripped between the edge (4) of the outer container and the open edge (15) of the bag (6), or between the open edge (15) of the bag (6) and the fixing means (13):
- Device according to Claim 2, characterized in that that part (23) of the gasket (20) which is gripped between the edge (4) of the outer container and the open edge (15) of the bag (6), or between the open edge (15) of the bag (6) and the fixing means (13), is an inner annular part (23) of the said gasket (20).
- Device according to any one of Claims 1 to 3, characterized in that the open edge (15) of the bag (6) is laid next to the step (24, 32, 43), preferably substantially in contact with the latter.
- Device according to any one of Claims 1 to 4, characterized in that the gasket (20) is formed by an element separate from the bag (6).
- Device according to any one of Claims 1 to 5, characterized in that a part (22) of the gasket (20) is gripped directly between the edge (4) of the container and the fixing means (13).
- Device according to any one of Claims 1 to 6, characterized in that that the said part (22) of the gasket (20) which is gripped directly between the edge (4) of the container and the fixing means (13) is formed by an outer annular part (22) of the gasket (20).
- Device (1) according to any one of Claims 1 to 7, characterized in that the thickness of the step (24, 32, 43) is approximately equal to the thickness of the open edge (15) of the bag (6).
- Device (1) according to any one of Claims 1 to 8, characterized in that the step (24) is formed by the gasket (20).
- Device (1) according to Claim 9, characterized in that the gasket (20) is of annular shape, an inner annular portion (23) of the said gasket being thinner than an outer annular portion (22) of the gasket.
- Device (1) according to any one of Claims 1 to 8, characterized in that the step (43) is formed by a folded annular edge (13) of the cup (11), forming the said fixing means.
- Device (1) according to any one of Claims 1 to 8, characterized in that the step (32) is formed by a folded annular edge (4) of the outer container (2).
- Device (1) according to Claim 2, characterized in that the gasket (20) is laid for part (23) of its radial width between the free edge (15) of the bag (6) and the fixing means (13).
- Device (1) according to Claim 2, characterized in that the gasket (20) is laid for part (23) of its radial width between the free edge (15) of the bag (6) and the edge (4) of the outer container (2).
- Device (1) according to any one of the preceding claims, characterized in that the thickness of the step (24, 32, 43) is between 0.03 mm and 1 mm, and preferably between 0.1 mm and 0.5 mm.
- Device (1) according to any one of Claims 1 to 15, characterized in that the fixing of the cup (11) and of the open edge (15) of the bag (6) to the edge (4) of the outer container (2) is done by crimping.
- Device (1) according to any one of Claims 1 to 16, characterized in that the fixing of the cup (11) and of the open edge (15) of the bag (6) to an edge (4) of the outer container (2) is done by tube expansion.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
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FR0001489 | 2000-02-07 | ||
FR0001489A FR2804665B1 (en) | 2000-02-07 | 2000-02-07 | POCKET AEROSOL WITH IMPROVED SEALING |
Publications (2)
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EP1122190A1 EP1122190A1 (en) | 2001-08-08 |
EP1122190B1 true EP1122190B1 (en) | 2007-04-04 |
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EP01400084A Expired - Lifetime EP1122190B1 (en) | 2000-02-07 | 2001-01-12 | Aerosol container with pouch and improved gasket |
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US (1) | US6332563B2 (en) |
EP (1) | EP1122190B1 (en) |
JP (1) | JP2001253483A (en) |
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DE (1) | DE60127601T2 (en) |
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FR (1) | FR2804665B1 (en) |
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JP2019513774A (en) | 2016-04-22 | 2019-05-30 | ザ プロクター アンド ギャンブル カンパニー | How to form a silicone layer |
US10835480B2 (en) | 2016-04-22 | 2020-11-17 | The Procter And Gamble Company | Method of forming a silicone layer |
US10421086B1 (en) * | 2018-06-19 | 2019-09-24 | Christine Kuligowski | Reusable dry erase spray paint can |
BR112021007059A2 (en) | 2018-11-08 | 2021-07-20 | The Procter & Gamble Company | low shear conditioner composition with spherical gel mesh vesicles |
GB2596321A (en) * | 2020-06-24 | 2021-12-29 | Pritchard Spray Ip Ltd | Methods for filling an aerosol dispenser |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2310287A1 (en) | 1975-05-07 | 1976-12-03 | Cebal | Aerosol container with inner flexible bag - has inner bag flange held on washer on rigid outer body rim of same internal dia. |
US4117951A (en) | 1975-05-07 | 1978-10-03 | Cebal | Aerosol dispenser liner |
FR2341501A2 (en) * | 1976-02-20 | 1977-09-16 | Cebal | Aerosol container with inner flexible bag - has inner bag flange held on washer on rigid outer body rim of same internal dia. |
GB2145775B (en) * | 1983-08-31 | 1987-08-05 | Metal Box Plc | Pressurisable containers |
FR2671055A1 (en) * | 1990-12-31 | 1992-07-03 | Oreal | DEVICE FOR DISPENSING A PRODUCT UNDER PRESSURE, IN PARTICULAR A FOAMING PRODUCT, AND METHODS FOR FILLING A CONTAINER FOR SUCH A DEVICE. |
US5277336A (en) | 1990-12-31 | 1994-01-11 | L'oreal | Device for the pressurized dispensing of a product, especially a foaming product, and processes for filling a container for a device of this kind |
FR2710036B1 (en) * | 1993-09-17 | 1995-12-01 | Sivel | Packaging composed of a rigid container inside which is mounted a deformable container containing a product delivered by doses using a pump. |
ES2250987T3 (en) * | 1995-03-09 | 2006-04-16 | Precision Valve Corporation | IMPROVED AEROSOL CONTAINER CLOSURE. |
AU751330B2 (en) * | 1997-10-01 | 2002-08-15 | Daizo Co., Ltd. | Double pressurized container for charging undercup and double pressurized products using the container |
-
2000
- 2000-02-07 FR FR0001489A patent/FR2804665B1/en not_active Expired - Fee Related
-
2001
- 2001-01-12 EP EP01400084A patent/EP1122190B1/en not_active Expired - Lifetime
- 2001-01-12 ES ES01400084T patent/ES2283382T3/en not_active Expired - Lifetime
- 2001-01-12 DE DE60127601T patent/DE60127601T2/en not_active Expired - Lifetime
- 2001-01-12 AT AT01400084T patent/ATE358640T1/en not_active IP Right Cessation
- 2001-02-06 CA CA002334417A patent/CA2334417C/en not_active Expired - Fee Related
- 2001-02-07 JP JP2001031438A patent/JP2001253483A/en active Pending
- 2001-02-07 US US09/777,865 patent/US6332563B2/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
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US6332563B2 (en) | 2001-12-25 |
ATE358640T1 (en) | 2007-04-15 |
FR2804665A1 (en) | 2001-08-10 |
CA2334417C (en) | 2005-11-15 |
JP2001253483A (en) | 2001-09-18 |
FR2804665B1 (en) | 2002-06-14 |
EP1122190A1 (en) | 2001-08-08 |
ES2283382T3 (en) | 2007-11-01 |
DE60127601D1 (en) | 2007-05-16 |
US20010025857A1 (en) | 2001-10-04 |
DE60127601T2 (en) | 2007-12-13 |
CA2334417A1 (en) | 2001-08-07 |
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