EP0822147A1 - Gerät zur getrennten Aufbewahrung zweier Komponenten und deren Mischung sowie zur Ausgabe der Mischung - Google Patents

Gerät zur getrennten Aufbewahrung zweier Komponenten und deren Mischung sowie zur Ausgabe der Mischung Download PDF

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Publication number
EP0822147A1
EP0822147A1 EP97401859A EP97401859A EP0822147A1 EP 0822147 A1 EP0822147 A1 EP 0822147A1 EP 97401859 A EP97401859 A EP 97401859A EP 97401859 A EP97401859 A EP 97401859A EP 0822147 A1 EP0822147 A1 EP 0822147A1
Authority
EP
European Patent Office
Prior art keywords
plug
compartments
operating member
components
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.)
Withdrawn
Application number
EP97401859A
Other languages
English (en)
French (fr)
Inventor
Nicolas Albisetti
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
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by LOreal SA filed Critical LOreal SA
Publication of EP0822147A1 publication Critical patent/EP0822147A1/de
Withdrawn legal-status Critical Current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
    • B65D25/00—Details of other kinds or types of rigid or semi-rigid containers
    • B65D25/02—Internal fittings
    • B65D25/04—Partitions
    • B65D25/08—Partitions with provisions for removing or destroying, e.g. to facilitate mixing of contents
    • B65D25/087—Partitions with provisions for removing or destroying, e.g. to facilitate mixing of contents the partition being in the form of a plug or the like which can be raised off its seat by means of a pull cord or the like, e.g. the plug being connected to the cap
    • 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
    • B65D81/32—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 for packaging two or more different materials which must be maintained separate prior to use in admixture
    • B65D81/3205—Separate rigid or semi-rigid containers joined to each other at their external surfaces
    • B65D81/3211—Separate rigid or semi-rigid containers joined to each other at their external surfaces coaxially and provided with means facilitating admixture
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S215/00—Bottles and jars
    • Y10S215/08—Mixing

Definitions

  • the present invention relates to a device for separate packaging of two components, mixing and distribution of the mixture thus obtained.
  • German utility model G 8624488.4 a device of which one of the compartments is constituted by a bottle having an externally threaded neck at its upper end and the other compartment of which is formed by a tubular part engaged inside said neck, closed at its lower end by a removable plug and provided at its upper end with a distribution nozzle defining an outlet channel, closed by a closure cap.
  • the plug is retained by friction in said tubular part and bears axially at its periphery against a shoulder formed at the base of said neck.
  • a rod shutter extends upwards the plug and engages in said outlet channel as long as the plug is resting on said shoulder. This prevents the component contained in the tubular part can be distributed without being mixed with prior to the component present in the bottle.
  • the tubular part is secured to an external skirt cooperating by screwing with the neck thread and allowing, when rotated in the sense of unscrewing, to raise the tubular part to inside the collar.
  • the plug which is held axially by the shoulder formed at the base of the neck, stops at the end of a race predetermined towards the top of the tubular part, to be retained by the latter and falls into the bottle, allowing the component contained in the tubular part to mix with that contained in vial.
  • This known device does not offer complete satisfaction, in particular because the filling of the tubular part proves difficult. In particular, it is not possible to introduce a produced by the dispensing nozzle when the cap is engaged in the tubular part, since the shutter rod then closes the output channel.
  • the invention aims to propose a new device for separate packaging of two components, mixing and distribution of the mixture thus obtained, which can be produced and filled inexpensively, which also allows separate packaging of an irritant solid or liquid component, safe, and safe to use.
  • a device of the type comprising a container with two compartments, a removable cap to separate the compartments during storage of said components until first use, a distribution nozzle defining a channel outlet for mixing, sealing means such as by example a closure rod, capable of closing said outlet channel during the storage of said components, and an operating member axially movable to cause relative displacement of the end piece and sealing means in order to release said channel from outlet and displacement of the plug in order to communicate said compartments, characterized in that the cap is connected to the operating member by a coupling member allowing to cause the plug on at least part of the axial displacement of the operating device in order to establish communication between said compartments.
  • the plug has not to be retained axially against a shoulder of the container during the movement of the operating member and the invention facilitates the filling of the container compartments with liquid or powdery products.
  • the sealing means are integral with said plug.
  • the operating member moves on a thread of the container.
  • the operating member is intended to be moved away from the end piece for connecting the two compartments.
  • the operating member is intended to be moved axially together with the end piece to port the two compartments and the operating member has a relief able to come into drive contact with the coupling member at term of an axial displacement of the operating member greater than the insertion depth of the sealing means in the exit.
  • the container comprises a body made of a integral by molding and having a constriction serving as seat audit plug.
  • said body of the container is open to both of its extremities.
  • the two openings of the container body facilitate, share its realization by injection blowing or coextrusion blowing and on the other hand allow to control with great precision the internal diameter of the throttle by which the compartments communicate.
  • We can thus facilitate obtaining the tightness of the closure of this constriction by the plug during separate storage of components.
  • this tightness can be tested before filling the compartments, which can advantageously be carried out by the respective openings of the container body without risk of contamination of a component by the other.
  • the coupling member has a cylindrical part capable of slide tightly in the container.
  • FIGS. 1 and 2 show a device 1 in accordance with a first embodiment of the invention.
  • This device 1 comprises a body 2 having a throttle 3 bringing together an upper compartment 4 and a lower compartment 5 intended to contain respectively components A and B before first use.
  • a cap 6 adjusts in throat 3 to separate compartments upper 4 and lower 5 and allow separate storage of components A and B.
  • the body 2 is elongated along a longitudinal axis X, has a generally symmetrical shape of revolution around this axis and has 7.8 threaded necks at its two axial ends outwardly.
  • the body 2 is advantageously produced by injection blowing in a plastic material chemically compatible with components to be conditioned.
  • body 2 is advantageously made by injection blow molding in PVC or by coextrusion blow molding in a PE / EVOH / PE multilayer.
  • the use of a multilayer allows to combine both chemical resistance and resistance mechanical while also allowing to benefit from an aspect improved aesthetics where appropriate. It will also be noted that by the relatively simple shape of the body 2, it is relatively easy to control the thickness of its wall.
  • a distribution nozzle 9, defining a channel of outlet 10, is screwed onto the neck 7 by means of a threaded base 11 internally.
  • the base 11 is provided with an annular lip seal 12 fitting on the radially internal surface of the neck 7.
  • the end piece 9 is provided with a thread 13 allowing the fixing by screwing a closure cap 14.
  • the outlet channel 10 opens out into compartment 4 through a mouth conical 15, diverging towards the inside of the container.
  • An operating member 16 makes it possible to move the plug 6 in body 2 in order to connect the compartments upper 4 and lower 5 and allow the mixing of components A and B.
  • the operating member 16 comprises an external skirt 17 provided with end of an annular bead 18, retained by snap-fastening in an annular groove 19 formed on the external surface of the wall of the body 2 laterally delimiting the lower compartment 5.
  • the operating member 16 also includes an internal skirt 20, internally threaded to screw onto the collar 8 and transform a rotation of the operating member 16 in an axial displacement of the latter along the X axis.
  • the fins 21 are formed on the external surface of the skirt 17 to facilitate gripping of the operating member 16 by the user.
  • the skirt 17 is connected on a bottom 22 by forming a groove 23 intended to receive a annular bead 24 of substantially complementary shape, formed at the lower end of a coupling member 25 whose end upper is secured to the plug 6.
  • the coupling member 25 is hollow and its side wall is through, at its upper part, slots 26 allowing the component B contained in the coupling member 25 to win the rest compartment 5.
  • the groove 23 has a retaining shoulder 27 allowing to axially drive the coupling member 25 when the operating member 16 is unscrewed on the neck 8.
  • the latter present, near its free edge and on its surface radially internal, an annular bead 29 applying to the lower part 30 of the coupling member 25.
  • This part lower 30 is cylindrical of revolution and slides so waterproof in contact with the bead 29.
  • the bead 24 has a tapered downwards shape, improving the tightness of its fixing in the throat 23.
  • the plug 6 has a transverse wall 71 connected to its periphery to an annular sealing lip 31 extending towards the top and consistent to fit tightly in the throttle 3 in order to separate the compartments 4 and 5 during the storage.
  • the transverse wall 71 is connected by its face lower than the coupling member 25 and it is extended superiorly, in its center, by a shutter rod 32 passing axially through the upper compartment 4.
  • the rod 32 has an upper end 33 shaped to engage, when the plug 6 is fitted in the constriction 3, in the channel outlet 10 and seal the latter.
  • the thread of the neck 8 is chosen so that the rotation of the operating member 16 is accompanied by a displacement axial of the latter and of the plug 6, greater than the depth insertion of the end 33 into the outlet channel 10, so that at the end of the rotation of the operating member 16, the end 33 of the plug rod has cleared the channel output 10, as shown in figure 2.
  • the user turns the operating member 16 in the direction of its unscrewing from the neck threaded 8.
  • the coupling member 25 is driven axially by the shoulder 27, downwards in FIG. 2, until the bead 18 comes to abut axially on the lower edge of the groove 19.
  • the plug 6 has moved downwards on the same stroke axial as the operating member 16 and has released the throttle 3, allowing the formation of mixture M in the compartment lower 5.
  • the shutter rod 32 has moved jointly with the plug 6 and released the outlet channel 10 from the end piece distribution 9. The user can then collect the mixture M at through the dispensing nozzle 9, after removing the cap 14.
  • the device 1 was brought into the position of use by a simple gesture of rotation of the operating member.
  • FIGS. 3 to 5 show a device 40 according to a second embodiment of the invention.
  • the device 40 comprises a body 41 having a throttle 42 by which compartments can communicate upper 43 and lower 44.
  • the body 41 has a shape elongated along a longitudinal axis X and has both axial ends of the necks 45, and 46 externally threaded.
  • the internal surface of the neck 46 laterally delimits the compartment 43.
  • a plug 61 makes it possible to separate the compartments 43 and 44 for separate storage of components A and B.
  • An end piece 48 is screwed onto the neck 45 to close lower compartment 44.
  • This end piece 48 has an outer skirt extending the cylindrical wall of the body 41 laterally delimiting the compartment 44 and comprises a internal skirt 49, internally threaded and shaped to be screwed on the collar 45.
  • the internal skirt 49 is connected to a bottom 50 extending transversely to the X axis and on which protrudes upwards an annular sealing lip 51, shaped to adjust to the radially internal surface of the neck 45 so obtain a tight closure of the lower end of the body 41.
  • Notches are provided on the skirt 49 to cooperate with protrusions made at the base of the collar 45 and prevent the user unscrew the part 48.
  • An actuator 52 is screwed onto the neck 46 to drive the plug 47 in movement and put in communication compartments 43 and 44 during the first use of the device.
  • the operating member 52 has an external skirt, the upper part 53 is internally threaded and the part lower 54 is enlarged and provided on its surface radially internal of an annular bead 55 shaped to snap into the annular groove 72 formed around the constriction 42 of the body 41 between compartments 43 and 44.
  • the operating member 52 is made in one piece by plastic material with a distribution nozzle 56, connecting to the part 53 by forming a groove 57.
  • the end piece 56 defines a channel outlet 75 opening into the upper compartment 43 by a mouth 58, conical diverging towards the compartment 43.
  • End piece 56 is externally threaded for fixing a cap closing 59.
  • a coupling member 60 is engaged at its end upper in the aforementioned groove 57 and is connected at its end lower on the plug 47.
  • the latter has a wall transverse 61 extended below by an annular lip sealing 62 coming into contact with the throttle 42 to ensure a watertight separation of compartments 43 and 44.
  • the coupling 60 is hollow and is provided on its lower part with lateral slots 63 allowing the passage of product from the interior of the coupling member 60 towards the rest of the compartment upper 43.
  • the coupling member 60 has in the upper part a cylindrical wall 67 of revolution and closely fitting in the neck 46 so as to slide tightly in this latest.
  • the transverse wall 61 of the plug 47 is extended superiorly, in its center, by a shutter rod 64 passing through compartment 43 and having one end upper 65 shaped to engage the lower end of the outlet channel 75 when the plug 47 is in place in the throttle 3, as shown in Figure 3.
  • the coupling member 60 has at its upper end an annular bead 66 having an upwardly tapered shape in order to fit tightly in the groove 57 and forming, with the wall 67, a shoulder 68.
  • the external skirt of the member maneuver 52 internally has a shoulder 69 adapted to come resting axially on the shoulder 68 of the bead 66 for drive up the coupling member 60 together with the operating member 52.
  • the assembly and filling of the device 40 takes place as follows.
  • the user rotates the maneuver 52 in the direction of its unscrewing from the neck 46.
  • the shoulder 69 rises until it comes to rest on the shoulder 68 of the bead 66, as shown in Figure 4.
  • the plug 47 remained stationary relative to the body 41.
  • the actuator has moved a distance greater than the depth of insertion of the shutter rod 64 inside the outlet channel 75 so that the latter is no longer blocked by the end 65 of the closure rod 64.
  • the user continuing to rotate the operating member 52, it drives jointly by abutment of the shoulder 69 against the shoulder 68 in its axial displacement the coupling member 60, which allows release the throttle 42 from the body 41.
  • the component A went down to mix with component B and get the mixture M.
  • the outlet channel 75 being released, the user can take mixture M by unscrewing the closing cap 59.
  • FIGS. 6 and 7 show a device 40 ′ according to a third embodiment of the invention.
  • the lower part of the device 40 ' is identical to that of device 40.
  • the upper part of device 40 ' differs from that of the device 40 in particular by the shape of the plug 47 ′, of the coupling member 60 ', the operating member 52' and the body 41 '.
  • the actuator 52 ' has an internal skirt 53' internally threaded and shaped to screw onto the 46 'neck of the body 41 'and an outer skirt 54' of diameter greater than that of the internal skirt 53 ', provided at the end with an annular bead 55' radially protruding inward.
  • This annular bead 55 ' is retained in an annular groove 70' formed on the surface external of the wall of the body 41 'laterally delimiting the compartment 43 'at its lower part.
  • the plug 47 ' defines, at its connection with the coupling member 60 ′, a shoulder 73 shaped to come axially bearing against a shoulder of complementary shape in lower part of compartment 43 ', when the plug 47' is in place in the throttle 42.
  • the coupling member can be slightly compressed axially when the plug 47 'and the maneuver 52 'are in place, so as to improve the sealing of closing compartment 43 '.
  • the organ of maneuver 60 ' can deform elastically under the effect of this axial compression.
  • the actuator 52 ' is provided on its outer surface with ribs 72 which improve the grip of the organ of operation 52 'by the user.
  • the assembly and filling of the device 40 ' are substantially identical to what has been described for the device 40, except that the operating member 52 'is retained, at term of its displacement in rotation causing the mixture of components A and B, on the body 41 ′ by stop of the bead annular 55 'against the upper edge of the annular groove 70', as shown in figure 7.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Closures For Containers (AREA)
  • Details Of Rigid Or Semi-Rigid Containers (AREA)
  • Package Specialized In Special Use (AREA)
  • Medical Preparation Storing Or Oral Administration Devices (AREA)
EP97401859A 1996-08-02 1997-08-01 Gerät zur getrennten Aufbewahrung zweier Komponenten und deren Mischung sowie zur Ausgabe der Mischung Withdrawn EP0822147A1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9609821A FR2751942B1 (fr) 1996-08-02 1996-08-02 Dispositif pour le stockage separe de deux composants leur melange et la distibution du melange
FR9609821 1996-08-02

Publications (1)

Publication Number Publication Date
EP0822147A1 true EP0822147A1 (de) 1998-02-04

Family

ID=9494792

Family Applications (1)

Application Number Title Priority Date Filing Date
EP97401859A Withdrawn EP0822147A1 (de) 1996-08-02 1997-08-01 Gerät zur getrennten Aufbewahrung zweier Komponenten und deren Mischung sowie zur Ausgabe der Mischung

Country Status (7)

Country Link
US (1) US5875888A (de)
EP (1) EP0822147A1 (de)
JP (1) JPH1081338A (de)
AR (1) AR008416A1 (de)
BR (1) BR9704243A (de)
FR (1) FR2751942B1 (de)
MX (1) MX9705764A (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2008071005A1 (en) * 2006-12-13 2008-06-19 Marc Anthony Venture Corporation Hair dye touch-up dispenser and method of using the same

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FR2764868B1 (fr) * 1997-06-20 1999-07-30 Oreal Dispositif de conditionnement d'un produit a plusieurs composantes devant etre stockees separement et melangees juste avant l'emploi du produit
FR2767794B1 (fr) * 1997-08-29 1999-10-08 Oreal Ensemble de deux elements montes libres en rotation l'un par rapport a l'autre notamment pour un melangeur dans le domaine de la coloration capillaire
JP2003531778A (ja) * 2000-05-03 2003-10-28 アムキャッド、ホールディングス、リミテッド 多成分混合
US6290100B1 (en) 2000-06-30 2001-09-18 Canberra Corporation Concentrate cartridge for a diluting and dispensing container
US8147119B2 (en) * 2001-08-02 2012-04-03 Arnold Gregory Klein Convenience nectar mixing and storage devices
US8197116B2 (en) * 2001-08-02 2012-06-12 Klein Arnold G Convenience nectar mixing and storage devices
KR100821802B1 (ko) * 2001-08-06 2008-04-11 엠.엘.아이.에스. 프로젝트 리미티드 다중격실 용기조립시스템
AU2003215285A1 (en) * 2002-02-20 2003-09-09 Licari Licensing Llc Hair-coloring system
US6705490B1 (en) 2002-09-12 2004-03-16 Eric K. Lizerbram Self contained additive reservoirs for use with beverage containers
US6959807B2 (en) * 2002-11-12 2005-11-01 M.L.I.S. Projects Ltd. Multi-compartment container assembly system
US8011534B2 (en) 2003-02-10 2011-09-06 Cool Gear International, Llc Flavoring component holding dispenser for use with consumable beverages
US6959839B2 (en) * 2003-02-10 2005-11-01 Donna Roth Flavoring component holding dispenser for use with consumable beverages
US20040206717A1 (en) * 2003-04-15 2004-10-21 Flies Matthew B. Compartmentalized beverage container
DE10345589A1 (de) * 2003-09-29 2005-05-04 Andre Schelbach Flakon
US7413074B2 (en) * 2003-12-02 2008-08-19 Otis Barr Two compartment bottle with mixing device
JP4694307B2 (ja) * 2005-08-17 2011-06-08 テルモ株式会社 医療用容器
US20070166269A1 (en) * 2005-12-01 2007-07-19 L'oreal Cosmetic composition containing a statistical polymer with a linear chain of ethylenic nature
US7850027B2 (en) * 2006-06-08 2010-12-14 Lacy Enterprise, Inc. Quick mixing baby formula cylinder
US9629782B2 (en) * 2006-06-08 2017-04-25 Lacy Enterprises, Inc. Quick mixing baby formula cylinder and system
GB0616743D0 (en) * 2006-08-24 2006-10-04 Gizmo Packaging Ltd Container closure having spout and means for introducing an additive into the contents of the container
US8157131B2 (en) * 2008-10-15 2012-04-17 Sim Jae K Spray bottle with refill cartridge
US8302816B2 (en) * 2008-10-15 2012-11-06 Sim Jae K Spray bottle with refill cartridge
US8261943B2 (en) * 2008-10-15 2012-09-11 Sim Jae K Spray bottle with refill cartridge
US8550303B2 (en) 2009-11-04 2013-10-08 Colgate-Palmolive Company Multi-chambered container
US8424713B2 (en) * 2009-12-17 2013-04-23 Michael J. Bolland Multiple container retaining device and method for using same
US8430137B2 (en) 2010-08-24 2013-04-30 Jae K. Sim Refill cap cartridge
US8871285B2 (en) 2011-10-26 2014-10-28 Kraft Foods Group Brands Llc Method for making a two component beverage and associated two compartment container
WO2014090776A1 (en) * 2012-12-10 2014-06-19 Kao Germany Gmbh Nozzle for a two-chamber container for mixing two components and applying the mixture
US10494164B2 (en) * 2016-03-09 2019-12-03 Fifth Third Bank, an Ohio Banking Dispensable containment vessel and dispensing system
CN108082725B (zh) * 2018-01-30 2024-02-02 双峰格雷斯海姆医药玻璃（丹阳）有限公司 一种药品与溶液隔离的药用玻璃瓶
JP7137007B2 (ja) * 2018-11-07 2022-09-13 ロレアル ２つの容器間の改善された封止を有する、製品を包装及び分配するための機器
WO2023069408A1 (en) * 2021-10-19 2023-04-27 Whirlbottle, Llc Multi-chambered liquid storage vessel

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EP0243730A2 (de) * 1986-04-09 1987-11-04 Robert Finke Kommanditgesellschaft Zweikomponentenflasche
DE8624488U1 (de) * 1986-09-12 1988-01-14 Wella Ag, 6100 Darmstadt, De
WO1993025446A1 (en) * 1992-06-18 1993-12-23 Bettix Limited Mixing container
DE9311641U1 (de) * 1993-08-04 1994-12-01 Goldwell Ag Zweikammer-Verpackung

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Patent Citations (4)

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Publication number Priority date Publication date Assignee Title
EP0243730A2 (de) * 1986-04-09 1987-11-04 Robert Finke Kommanditgesellschaft Zweikomponentenflasche
DE8624488U1 (de) * 1986-09-12 1988-01-14 Wella Ag, 6100 Darmstadt, De
WO1993025446A1 (en) * 1992-06-18 1993-12-23 Bettix Limited Mixing container
DE9311641U1 (de) * 1993-08-04 1994-12-01 Goldwell Ag Zweikammer-Verpackung

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2008071005A1 (en) * 2006-12-13 2008-06-19 Marc Anthony Venture Corporation Hair dye touch-up dispenser and method of using the same

Also Published As

Publication number Publication date
FR2751942B1 (fr) 1998-09-11
BR9704243A (pt) 1998-11-10
JPH1081338A (ja) 1998-03-31
FR2751942A1 (fr) 1998-02-06
US5875888A (en) 1999-03-02
AR008416A1 (es) 2000-01-19
MX9705764A (es) 1998-02-28

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