EP0732276B1 - Container for spraying liquids and method of manufacturing it - Google Patents

Container for spraying liquids and method of manufacturing it Download PDF

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Publication number
EP0732276B1
EP0732276B1 EP96400351A EP96400351A EP0732276B1 EP 0732276 B1 EP0732276 B1 EP 0732276B1 EP 96400351 A EP96400351 A EP 96400351A EP 96400351 A EP96400351 A EP 96400351A EP 0732276 B1 EP0732276 B1 EP 0732276B1
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EP
European Patent Office
Prior art keywords
container according
piston
packaging
liquid
scores
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
EP96400351A
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German (de)
French (fr)
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EP0732276A1 (en
Inventor
Vincent De Laforcade
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
LOreal SA
Original Assignee
LOreal SA
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Filing date
Publication date
Application filed by LOreal SA filed Critical LOreal SA
Publication of EP0732276A1 publication Critical patent/EP0732276A1/en
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Publication of EP0732276B1 publication Critical patent/EP0732276B1/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
    • 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
    • B65D83/64—Contents and propellant separated by piston

Definitions

  • the present invention relates to a package comprising a piston and to a method of manufacturing this package.
  • This packaging contains in particular a liquid sprayed by means of a propellant gas.
  • This packaging can be used in the food, chemical, cosmetic, dermatological, insecticide and cleaning agent fields.
  • cylindrical packaging generally called an aerosol can, comprising in their internal volume a piston capable of sliding along the longest axis of the packaging, generally the longitudinal axis.
  • the pistons of these packages are conventionally provided with seals of geometric shape adapted to the shape of the packaging / piston assembly, such as for example of toric or annular shape. These seals have the role of ensuring a seal of the piston and therefore of the packaging with respect to the liquid and the gas present in compartments separated by the piston. This tightness is not sufficient vis-à-vis the liquid (lateral passage of gas in the liquid), it is also necessary to strengthen it by the presence of a scraper lip mounted on the joint integral with the piston. Thus, when the piston slides along the long axis of the packaging, the combination of the scraper lip and the seal on the piston makes it possible, while scraping the internal wall of the packaging, to ensure correct sealing of the packaging with respect to the liquid it contains.
  • the object of the invention is to propose a new packaging which makes it possible to ensure a sufficient and correct seal between the gas and the liquid present in the packaging, while ensuring a tightness of the piston with respect to the gas, and therefore without present the drawbacks of the prior art.
  • the present invention therefore relates to a package according to claim 1 having a longitudinal axis, comprising an inner wall and an outer wall, and in which slides a piston, characterized in that a part of the inner wall, capable of 'be in contact with the piston, includes scratches perpendicular to the longitudinal axis to ensure a seal between the piston and the wall.
  • the invention more particularly relates to a packaging of substantially cylindrical shape containing in two separate compartments a liquid and a propellant.
  • the packaging according to the invention makes it possible to ensure correct and sufficient tightness of the piston with respect to the propellant gas and the liquid, without having to resort to the use of a coating substance, such as a varnish, on the inner wall of the packaging.
  • the packaging piston is provided with a seal contained in a plane parallel to the scratches, the seal ensuring, as in the state of the art, the sealing of the gas towards the liquid.
  • the seal may be annular and preferably of substantially toric shape.
  • the invention also relates to a process for manufacturing the above-mentioned packaging according to claim 13.
  • This method according to claim 13 comprises a step of brushing the internal wall of the packaging perpendicular to the longitudinal axis. This step consists of introducing a brush into the packaging, applying it to its internal surface without translational movement, then removing it and washing the packaging of the particles of material from the brushing operation.
  • the other steps of the method are in accordance with the prior art.
  • the scratches on the inner wall of the packaging can be spaced irregularly.
  • these stripes are continuous stripes. They can be spaced apart by a distance less than or equal to 1000 ⁇ m and preferably by a distance less than or equal to 100 ⁇ m.
  • the scratches can, moreover, have a depth less than or equal to 100 ⁇ m and better from 25 ⁇ m to 50 ⁇ m.
  • the scratches may be deeper than the crevices parallel to the longitudinal axis, caused by the spinning of the inner wall. Consequently, the influence of crevices is obscured by the presence of stripes perpendicular to this axis.
  • the packaging can be made of a material chosen from rigid plastic materials and metallic materials.
  • the packaging is made of metal and in particular aluminum, steel, iron.
  • the packaging is made of a material whose hardness is sufficient to give scratches when brushing the internal wall.
  • the packaging can contain all the compositions conventionally used in the field of cosmetics and / or dermatology, or food.
  • the gas propellant used can be any gas conventionally used in the abovementioned fields.
  • a cylindrical packaging 1 comprising an aluminum body 2 and a plastic cap 3.
  • a longitudinal axis A of revolution passes through the packaging.
  • the body 2 consists on the one hand of a compartment 4 comprising the liquid 5 and on the other hand of a compartment 6, distinct from the compartment 4, and comprising the propellant gas.
  • a piston 8 provided laterally with a seal O-ring 9 separates the two compartments.
  • the body 2 can also be provided with a filling valve (not shown) with propellant gas 7.
  • the cap 3 protects a spray assembly consisting of a valve 10 on which a control rod 11 is inserted.
  • the rod 11 includes a shoulder 12 on which bears a pin 13 provided with an orifice.
  • the cap 3 further comprises a push button 16 on which a user can press to release the liquid.
  • the body 2 comprises on its internal wall 17 stripes 18 regularly spaced from each other by 50 ⁇ m. These scratches are made to a depth of 30 ⁇ m in the internal wall 17. These scratches are obtained by brushing the internal wall with a rotary brush with metal bristles.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Dispersion Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Containers And Packaging Bodies Having A Special Means To Remove Contents (AREA)
  • Nozzles (AREA)

Description

La présente invention se rapporte à un conditionnement comprenant un piston et à un procédé de fabrication de ce conditionnement. Ce conditionnement contient en particulier un liquide pulvérisé au moyen d'un gaz propulseur. Ce conditionnement peut être utilisé dans les domaines alimentaire, chimique, cosmétique, dermatologique, des insecticides, des agents nettoyants.The present invention relates to a package comprising a piston and to a method of manufacturing this package. This packaging contains in particular a liquid sprayed by means of a propellant gas. This packaging can be used in the food, chemical, cosmetic, dermatological, insecticide and cleaning agent fields.

Il est connu d'utiliser des conditionnements de forme cylindrique, généralement appelé bidon aérosol, comprenant dans leur volume intérieur un piston capable de coulisser selon le plus grand axe du conditionnement, généralement l'axe longitudinal.It is known to use cylindrical packaging, generally called an aerosol can, comprising in their internal volume a piston capable of sliding along the longest axis of the packaging, generally the longitudinal axis.

Les pistons de ces conditionnements sont classiquement munis de joints de forme géométrique adaptée à la forme de l'ensemble conditionnement/piston, telle que par exemple de forme torique ou annulaire. Ces joints ont pour rôle d'assurer une étanchéité du piston et donc du conditionnement vis-à-vis du liquide et du gaz présents dans des compartiments séparés par le piston. Cette étanchéité n'étant pas suffisante vis-à-vis du liquide (passage latéral de gaz dans le liquide), il est par ailleurs nécessaire de la renforcer par la présence d'une lèvre racleuse montée sur le joint solidaire du piston. Ainsi, lorsque le piston coulisse selon le grand axe du conditionnement, la combinaison de la lèvre racleuse et du joint sur le piston permet, tout en raclant la paroi interne du conditionnement, d'assurer une étanchéité correcte du conditionnement vis-à-vis du liquide qu'il contient.The pistons of these packages are conventionally provided with seals of geometric shape adapted to the shape of the packaging / piston assembly, such as for example of toric or annular shape. These seals have the role of ensuring a seal of the piston and therefore of the packaging with respect to the liquid and the gas present in compartments separated by the piston. This tightness is not sufficient vis-à-vis the liquid (lateral passage of gas in the liquid), it is also necessary to strengthen it by the presence of a scraper lip mounted on the joint integral with the piston. Thus, when the piston slides along the long axis of the packaging, the combination of the scraper lip and the seal on the piston makes it possible, while scraping the internal wall of the packaging, to ensure correct sealing of the packaging with respect to the liquid it contains.

Malheureusement la combinaison de ces deux éléments ne permet pas une étanchéité suffisante entre le gaz et le liquide présents dans le conditionnement. En effet, le gaz sous pression diffuse lentement et de façon constante vers le liquide malgré la présence combinée du joint et de la lèvre racleuse du piston. Cette diffusion lente et constante du gaz est due à la présence d'une multitude de crevasses parallèles au plus grand axe du conditionnement ; la présence de ces crevasses est une conséquence du procédé de filage utilisé lors de la conception du conditionnement.Unfortunately the combination of these two elements does not allow a sufficient seal between the gas and the liquid present in the packaging. Indeed, the pressurized gas diffuses slowly and steadily towards the liquid despite the combined presence of the seal and the scraper lip of the piston. This slow and constant diffusion of the gas is due to the presence of a multitude of crevices parallel to the largest axis of the packaging; the presence of these crevices is a consequence of the spinning process used when designing the packaging.

Un moyen pour remédier à ce problème d'étanchéité consisterait notamment à revêtir la paroi interne du conditionnement d'un vernis. Mais quels que soient les propriétés physico-chimiques de ce vernis, il n'est pas possible de combler complètement les crevasses.One way to remedy this sealing problem would consist in particular in coating the inner wall of the packaging with a varnish. But whatever the physicochemical properties of this varnish, it is not possible to completely fill the crevices.

L'invention a pour but de proposer un nouveau conditionnement qui permet d'assurer une étanchéité suffisante et correcte entre le gaz et le liquide présents dans le conditionnement, tout en assurant une étanchéité du piston vis-à-vis du gaz, et donc sans présenter les inconvénients de l'art antérieur.The object of the invention is to propose a new packaging which makes it possible to ensure a sufficient and correct seal between the gas and the liquid present in the packaging, while ensuring a tightness of the piston with respect to the gas, and therefore without present the drawbacks of the prior art.

La présente invention a donc pour objet un conditionnement d'après la revendication 1 ayant un axe longitudinal, comprenant une paroi interne et une paroi externe, et dans lequel coulisse un piston, caractérisé en ce qu'une partie de la paroi interne, susceptible d'être en contact avec le piston, comprend des rayures perpendiculaires à l'axe longitudinal pour assurer une étanchéité entre le piston et la paroi.The present invention therefore relates to a package according to claim 1 having a longitudinal axis, comprising an inner wall and an outer wall, and in which slides a piston, characterized in that a part of the inner wall, capable of 'be in contact with the piston, includes scratches perpendicular to the longitudinal axis to ensure a seal between the piston and the wall.

L'invention a plus particulièrement pour objet un conditionnement de forme sensiblement cylindrique contenant dans deux compartiments séparés un liquide et un gaz propulseur.The invention more particularly relates to a packaging of substantially cylindrical shape containing in two separate compartments a liquid and a propellant.

Ainsi, le conditionnement selon l'invention permet d'assurer une étanchéité correcte et suffisante du piston vis-à-vis du gaz propulseur et du liquide, sans avoir à recourir à l'utilisation d'une substance de revêtement, tel qu'un vernis, sur la paroi interne du conditionnement.Thus, the packaging according to the invention makes it possible to ensure correct and sufficient tightness of the piston with respect to the propellant gas and the liquid, without having to resort to the use of a coating substance, such as a varnish, on the inner wall of the packaging.

De préférence, le piston du conditionnement est muni d'un joint contenu dans un plan parallèle aux rayures, le joint assurant, comme dans l'état de la technique, l'étanchéité du gaz vers le liquide.Preferably, the packaging piston is provided with a seal contained in a plane parallel to the scratches, the seal ensuring, as in the state of the art, the sealing of the gas towards the liquid.

Pour un conditionnement sensiblement cylindrique, le joint peut être annulaire et de préférence de forme sensiblement torique.For a substantially cylindrical packaging, the seal may be annular and preferably of substantially toric shape.

L'invention a encore pour objet un procédé de fabrication du conditionnement ci-dessus mentionné d'après la revendication 13.The invention also relates to a process for manufacturing the above-mentioned packaging according to claim 13.

Ce procédé selon la revendication 13 comprend une étape de brossage de la paroi interne du conditionnement perpendiculairement à l'axe longitudinal. Cette étape consiste à introduire une brosse dans le conditionnement, à l'appliquer sur sa surface interne sans mouvement de translation, puis à la retirer et à laver le conditionnement des particules de matériau issues de l'opération de brossage. Les autres étapes du procédé sont conformes à l'art antérieur.This method according to claim 13 comprises a step of brushing the internal wall of the packaging perpendicular to the longitudinal axis. This step consists of introducing a brush into the packaging, applying it to its internal surface without translational movement, then removing it and washing the packaging of the particles of material from the brushing operation. The other steps of the method are in accordance with the prior art.

Les rayures présentes sur la paroi interne du conditionnement peuvent être espacées irrégulièrement. Avantageusement ces rayures sont des rayures continues. Elles peuvent être espacées d'une distance inférieure ou égale à 1000µm et de façon préférée d'une distance inférieure ou égale à 100µm.The scratches on the inner wall of the packaging can be spaced irregularly. Advantageously, these stripes are continuous stripes. They can be spaced apart by a distance less than or equal to 1000 μm and preferably by a distance less than or equal to 100 μm.

Les rayures peuvent, en outre, avoir une profondeur inférieure ou égale à 100µm et mieux de 25µm à 50µm.The scratches can, moreover, have a depth less than or equal to 100 μm and better from 25 μm to 50 μm.

Les rayures peuvent être plus profondes que les crevasses parallèles à l'axe longitudinal, provoquées par le filage de la paroi interne. Par conséquent, l'influence des crevasses est occultée par la présence des rayures perpendiculaires à cet axe.The scratches may be deeper than the crevices parallel to the longitudinal axis, caused by the spinning of the inner wall. Consequently, the influence of crevices is obscured by the presence of stripes perpendicular to this axis.

Le conditionnement peut être réalisé en un matériau choisi parmi les matériaux plastiques rigides et les matériaux métalliques. De préférence, le conditionnement est réalisé en métal et notamment en aluminium, en acier, en fer. De façon générale, le conditionnement est réalisé en un matériau dont la dureté est suffisante pour donner des rayures lors d'un brossage de la paroi interne.The packaging can be made of a material chosen from rigid plastic materials and metallic materials. Preferably, the packaging is made of metal and in particular aluminum, steel, iron. In general, the packaging is made of a material whose hardness is sufficient to give scratches when brushing the internal wall.

Le conditionnement peut contenir toutes les compositions classiquement utilisées dans le domaine de la cosmétique et/ou dermatologique, ou alimentaire. Le gaz propulseur utilisé peut être tout gaz classiquement utilisé dans les domaines susmentionnés.The packaging can contain all the compositions conventionally used in the field of cosmetics and / or dermatology, or food. The gas propellant used can be any gas conventionally used in the abovementioned fields.

On va maintenant donner, à titre illustratif, un exemple de conditionnement selon l'invention, en référence à l'unique figure qui est une vue en perspective coupée parallèlement à l'axe longitudinal.We will now give, by way of illustration, an example of packaging according to the invention, with reference to the single figure which is a perspective view cut parallel to the longitudinal axis.

Sur cette figure, on a représenté un conditionnement de forme cylindrique 1 comprenant un corps en aluminium 2 et un capuchon en plastique 3. Un axe longitudinal A de révolution traverse le conditionnement.In this figure, there is shown a cylindrical packaging 1 comprising an aluminum body 2 and a plastic cap 3. A longitudinal axis A of revolution passes through the packaging.

Le corps 2 est constitué d'une part d'un compartiment 4 comprenant le liquide 5 et d'autre part d'un compartiment 6, distinct du compartiment 4, et comprenant le gaz propulseur 7. Un piston 8 muni latéralement d'un joint torique 9 sépare les deux compartiments. Avantageusement, le corps 2 peut être muni, en outre, d'un clapet de remplissage (non représenté) en gaz propulseur 7.The body 2 consists on the one hand of a compartment 4 comprising the liquid 5 and on the other hand of a compartment 6, distinct from the compartment 4, and comprising the propellant gas. A piston 8 provided laterally with a seal O-ring 9 separates the two compartments. Advantageously, the body 2 can also be provided with a filling valve (not shown) with propellant gas 7.

Le capuchon 3 protège un ensemble de pulvérisation constitué d'une valve 10 sur laquelle est insérée une tige 11 de commande. La tige 11 comprend un épaulement 12 sur lequel prend appui un pion 13 muni d'un orifice.The cap 3 protects a spray assembly consisting of a valve 10 on which a control rod 11 is inserted. The rod 11 includes a shoulder 12 on which bears a pin 13 provided with an orifice.

En sortie du pion 13 on trouve un canal 14 qui débouche sur une buse de pulvérisation 15 du liquide. Le capuchon 3 comprend de plus un bouton poussoir 16 sur lequel peut appuyer un utilisateur pour faire sortir le liquide.At the outlet of the pin 13 there is a channel 14 which opens onto a nozzle 15 for spraying the liquid. The cap 3 further comprises a push button 16 on which a user can press to release the liquid.

Selon l'invention, le corps 2 comprend sur sa paroi interne 17 des rayures 18 régulièrement espacées les unes des autres de 50µm. Ces rayures sont réalisées sur une profondeur de 30µm dans la paroi interne 17. Ces rayures sont obtenues au moyen d'un brossage de la paroi interne par une brosse rotative à poils métalliques.According to the invention, the body 2 comprises on its internal wall 17 stripes 18 regularly spaced from each other by 50 μm. These scratches are made to a depth of 30 μm in the internal wall 17. These scratches are obtained by brushing the internal wall with a rotary brush with metal bristles.

Pour obtenir la pulvérisation du liquide, un utilisateur doit appuyer sur le bouton poussoir 16. Ceci permet au pion 13 d'appuyer sur l'épaulement 12 de la tige 11 et donc faire sortir le liquide vers l'extérieur via la buse.To spray the liquid, a user must press the push button 16. This allows the pin 13 to press on the shoulder 12 of the rod 11 and therefore cause the liquid to flow out via the nozzle.

La présence simultanée d'un joint 9 sur le piston 8 disposé entre les compartiments 4 et 6, et des rayures 18 sur la paroi interne 17 du corps 2 permet d'assurer une excellente étanchéité entre le gaz et le liquide au niveau du piston.The simultaneous presence of a seal 9 on the piston 8 disposed between the compartments 4 and 6, and scratches 18 on the internal wall 17 of the body 2 makes it possible to ensure an excellent seal between the gas and the liquid at the level of the piston.

Claims (13)

  1. A container (1) having a longitudinal axis, comprising an internal wall (17) and an external wall, and wherein there slides a piston (8), characterized in that a portion of the internal wall capable of being in contact with the piston comprises scores (18) perpendicular to the longitudinal axis, to ensure a seal between the piston and the wall.
  2. A container according to claim 2, characterized in that the scores (18) are obtained by brushing the internal wall (17).
  3. A container according to one of the preceding claims, characterized in that the scores (18) are continuous.
  4. A container according to one of the preceding claims, characterized in that the scores (18) are irregularly interspaced from one another.
  5. A container according to one of the preceding claims, characterized in that the scores (18) are interspaced from one another at a distance of less than 1000µm.
  6. A container according to one of the preceding claims, characterized in that the piston (8) is provided with a seal (9) contained in a plane parallel to the scores (18).
  7. A container according to one of the preceding claims, characterized in that the scores (18) have a depth of less than, or equal to 100 µm.
  8. A container according to one of the preceding claims, characterized in that it is substantially cylindrical.
  9. A container according to claim 6, characterized in that the seal (9) has a substantially toric shape.
  10. A container according to one of the preceding claims, characterized in that it contains a liquid (5) and a gas (7) for propelling the liquid.
  11. A container according to claim 10, characterized in that the liquid (5) and the propellant gas are situated on either side of the piston.
  12. A container according to claim 11, characterized in that it comprises a dispensing valve (10) and in that the liquid (5) is situated on the side of the valve.
  13. A method for manufacturing the container according to one of the preceding claims, characterized in that it comprises a step of brushing the internal wall of the container perpendicularly to its longitudinal axis.
EP96400351A 1995-03-15 1996-02-20 Container for spraying liquids and method of manufacturing it Expired - Lifetime EP0732276B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9503012 1995-03-15
FR9503012A FR2731683B1 (en) 1995-03-15 1995-03-15 SPRAY PACKAGING, MANUFACTURING PROCESS

Publications (2)

Publication Number Publication Date
EP0732276A1 EP0732276A1 (en) 1996-09-18
EP0732276B1 true EP0732276B1 (en) 1997-01-22

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP96400351A Expired - Lifetime EP0732276B1 (en) 1995-03-15 1996-02-20 Container for spraying liquids and method of manufacturing it

Country Status (11)

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US (2) US5775549A (en)
EP (1) EP0732276B1 (en)
JP (1) JP2710607B2 (en)
AR (1) AR001235A1 (en)
AT (1) ATE148067T1 (en)
CA (1) CA2171674C (en)
DE (1) DE69600002T2 (en)
DK (1) DK0732276T3 (en)
ES (1) ES2100103T3 (en)
FR (1) FR2731683B1 (en)
PL (1) PL313250A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107810143A (en) * 2015-06-18 2018-03-16 宝洁公司 The method for manufacturing piston aerosol dispenser

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FR2731683B1 (en) * 1995-03-15 1997-04-18 Oreal SPRAY PACKAGING, MANUFACTURING PROCESS
US6345739B1 (en) * 1996-02-02 2002-02-12 Daizo Co., Ltd. Method for producing a double aerosol device and container therefor
DE19717080C2 (en) * 1996-12-19 2001-12-06 Manfred Stadler Repeatable refillable spray can or bottle
US6039222A (en) * 1997-02-18 2000-03-21 The Procter & Gamble Co. Vapor permeable pressurized package
EP1468759A1 (en) * 2003-04-15 2004-10-20 Nussbaum Rielasingen GmbH Method for manufacturing a double chamber pressure container
EP1645264B1 (en) 2004-09-21 2010-11-03 KPSS-Kao Professional Salon Services GmbH Product for hair dyeing in a two chamber aerosol can
ATE474549T1 (en) * 2004-09-21 2010-08-15 Kpss Kao Gmbh HAIR WAVE IN A SPRAY CAN WITH TWO SEPARATE CHAMBERS
ES2315200B1 (en) * 2007-09-14 2009-10-29 Clayspray, S.L. COSMETIC COMPOSITION FOR TOPICAL ADMINISTRATION IN THE FORM OF SPRAY.
US20090283550A1 (en) * 2008-05-16 2009-11-19 Kimball James F Extreme Barrier Metal Piston and Container Utilizing Same
GB2536259A (en) * 2015-03-11 2016-09-14 Linde Ag A device for atomising a liquid
EP3883863A1 (en) * 2018-11-23 2021-09-29 Aluair GmbH Dispenser container, dispenser and method for manufacturing a dispenser container
US11447326B2 (en) * 2019-12-19 2022-09-20 Thomas M. Risch System and method for a reusable dispensing container
EP4410706A1 (en) 2023-02-06 2024-08-07 Kao Germany GmbH Piston for a packaging container, packaging container and method of making thereof

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US112770A (en) * 1871-03-21 Improvement in piston-rod packings
FR370458A (en) * 1906-10-13 1907-02-07 Otto Carl Rauhe Container whose fraudulent use or refilling is impossible
US3273762A (en) * 1965-06-28 1966-09-20 Union Machine Company Pressure can construction including free piston
US3381863A (en) * 1966-05-23 1968-05-07 Edward J. Towns Separating medium for use in pressurized dispensing containers
US3915352A (en) * 1974-09-11 1975-10-28 Christian T Scheindel Aerosol can and piston assembly
DE3624638A1 (en) * 1986-07-22 1988-02-04 Ritter Plastic Gmbh Cylindrical plastic extrusion container for viscous compounds
US5056690A (en) * 1989-02-03 1991-10-15 Lion Corporation Dispensing container for viscous material
US5042696A (en) * 1990-05-02 1991-08-27 Williams John E Dispenser with piston assembly for expelling product
FR2731683B1 (en) * 1995-03-15 1997-04-18 Oreal SPRAY PACKAGING, MANUFACTURING PROCESS

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107810143A (en) * 2015-06-18 2018-03-16 宝洁公司 The method for manufacturing piston aerosol dispenser
CN107810143B (en) * 2015-06-18 2021-03-05 宝洁公司 Method of manufacturing a piston aerosol dispenser

Also Published As

Publication number Publication date
ATE148067T1 (en) 1997-02-15
DE69600002T2 (en) 1997-05-07
US5775549A (en) 1998-07-07
JP2710607B2 (en) 1998-02-10
DK0732276T3 (en) 1997-07-14
FR2731683A1 (en) 1996-09-20
CA2171674A1 (en) 1996-09-16
ES2100103T3 (en) 1997-06-01
FR2731683B1 (en) 1997-04-18
CA2171674C (en) 1999-12-07
US5971228A (en) 1999-10-26
DE69600002D1 (en) 1997-03-06
JPH08257122A (en) 1996-10-08
AR001235A1 (en) 1997-09-24
EP0732276A1 (en) 1996-09-18
PL313250A1 (en) 1996-09-16

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