EP0017147A1 - Twin chamber pressure container for dispensing a product - Google Patents

Twin chamber pressure container for dispensing a product Download PDF

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Publication number
EP0017147A1
EP0017147A1 EP80101579A EP80101579A EP0017147A1 EP 0017147 A1 EP0017147 A1 EP 0017147A1 EP 80101579 A EP80101579 A EP 80101579A EP 80101579 A EP80101579 A EP 80101579A EP 0017147 A1 EP0017147 A1 EP 0017147A1
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EP
European Patent Office
Prior art keywords
outer container
container
inner container
chamber pressure
dispensing
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.)
Ceased
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EP80101579A
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German (de)
French (fr)
Inventor
Rudolf Lechner
Josef Elbs
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Lechner GmbH
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Lechner GmbH
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Publication of EP0017147A1 publication Critical patent/EP0017147A1/en
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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
    • 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

Definitions

  • the invention relates to a two-chamber pressure can for dispensing a filling material with a pressure-resistant outer container, with an inner container made of deformable metallic material for receiving the filling material, which is fastened to a lid receiving the dispensing valve and closing the outer container, and with a closable opening on the bottom of the outer container for filling the propellant.
  • Two-chamber pressure cans in which the blowing agent is separated from the filling material, are increasingly being manufactured. They are used, for example, as dispensers for liquid filling goods, as cream dispensers, as dispensers for foods in pasty form or the like. They often use compressed gases that do not pollute the environment, such as C0 2 , N 2 0, N 2 or air. Since, according to the provisions of the law on measurement and calibration, the space which holds the pressurized propellant may not exceed 40% of the volume of the outer container, but on the other hand it must be ensured that the propellant pressure is sufficiently high to largely empty the inner container To be able to drive out the last rest of the contents, high initial pressures of over 10 bar are required for the blowing agent. These very high pressures lead to considerable sealing problems, since the propellant pressure of the full can must not drop even over a long period of time, because otherwise the contents cannot be driven out or cannot be driven out completely.
  • the outer container is designed as a conventional three-part can, the jacket of which is formed from a flat sheet metal cut into a cylinder, which is followed by the overlapping areas are welded together. The ends of this cylindrical jacket are then bulged outwards and flanged together with a corresponding cover and a corresponding base part.
  • the double longitudinal seam there are sealing problems when the inner container is crimped between the jacket and the cover, in particular when an inner container made of metal is used, since there is a discontinuous transition in the region of the flanged seam.
  • the invention has for its object to provide a two-chamber pressure can of the type mentioned, which remains simple with simple manufacture.
  • the outer container is preferably narrowed slightly in the region of its open end, and / or the inner container is slightly expanded in the region of its open end, which on the one hand results in a limited contact area between the outer container and the inner container, while at the same time in the further region lying towards the bottom an annular space for the propellant is created.
  • the inner container can expediently be made of aluminum which has been softened by annealing.
  • the jacket of the outer container can advantageously consist of one piece together with the base.
  • Such a container is particularly easy to manufacture by extrusion. It is also particularly easy to paint and print all around.
  • 10 denotes the outer container, which can consist of one piece with the curved bottom 12.
  • a cup-shaped body can be produced in a known manner by extrusion.
  • An opening is provided in the bottom 12 through which the propellant is later introduced. This opening is closed with a plug 21 after the propellant has been filled in.
  • the outer container can be narrowed at 14 at its open end.
  • the edge is bent outwards. It serves to receive the upper edge 16 of the inner vessel 11 and the outer edge of the lid 18.
  • the inner vessel 11 consists of soft material, preferably of soft annealed aluminum. It can be somewhat expanded in the area of its upper edge at 15. The edge is also bent outwards.
  • the outer dimension of the inner container 11 is chosen at 15 so that it is on the inner wall of the shell of the outer container 10 is present or is only a very short distance, so that the inner container can be easily inserted through the opening of the outer container in this. Due to the above-mentioned design of the inner container 11 or the outer container 10, an annular space 22 is formed after the inner container has been inserted, which serves to receive the propellant. In addition, the inner container can be inserted particularly easily into the outer container.
  • annular layer 17 is arranged, which is made of any suitable sealant, such as e.g. Latex. This layer can e.g. be sprayed on.
  • This sealant layer 17 results in an additional seal between the inner container and the outer container, which is connected upstream of the seal between the inner container and the outer container caused by the usual sealant layer in the edge of the lid. This ensures a very secure seal even over long periods of time.
  • the two-chamber can according to the invention is produced as follows.
  • the bottom of the outer container 10 is produced in a known manner by extrusion, and the free edge is slightly drawn in and bent outwards, as shown in FIG. 2.
  • the hole is then made in the domed bottom 12 and the sealant layer 17 is applied.
  • the thin-walled inner container 11 can be produced in a similar manner by extrusion. It is then further treated in a known manner, in particular soft annealed. An inner protective layer can then be applied, which protects the container from a possibly aggressive filling material. Then the upper part can be expanded a little. It is then turned outside.
  • the inner container 11 is inserted into the outer container 10.
  • the sealant layer 17 is pushed back somewhat.
  • it lies in front of the gap between the inner container and the outer container.
  • the lid is put on, the edge of which also contains a sealant layer in the usual way.
  • the edge of the lid is flanged together with the edges of the outer container 10 and inner container 11, whereby a fixed connection. binding of the parts is produced.
  • the inner container 11 can be filled with filling material through the valve opening in the lid 18, whereupon the valve 19 is fastened to the lid 18 with a valve plate 20 and the inner container is thus closed.
  • the space 22 between the inner container and the outer container is filled with propellant through the opening in the base 12, whereupon this opening is closed with a stopper 21.
  • the propellant acts on the sealant layer 17 lying in front of the gap between the inner container and the outer container in the manner described, and presses the part in front of it against this gap, as a result of which an effective additional sealing It seal is achieved. This results in a very effective seal that prevents the blowing agent from escaping for a long time, even at high propellant pressures.

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  • 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)

Abstract

Dual-chamber pressurised can having a pressure-resistant outer container (10), having an inner container (11) made of deformable metallic material for receiving the filling contents, which inner container is attached to a lid (20) which contains a discharge valve (19) and closes off the outer container, and having a closable opening (21) at the bottom of the outer container for filling with a propellant. The outer container (10) is provided with a seamless shell. The metal inner container (11) contacts the inner wall of the shell of the outer container at least in one circumferential region adjacent to the upper opening, a layer of sealing medium being provided in this circumferential region, preferably also in a region directly adjacent towards the container bottom. <IMAGE>

Description

Die Erfindung betrifft eine Zweikammer-Druckdose zur Abgabe eines Füllgutes mit einem druckfesten Außenbehälter, mit einem Innenbehälter aus verformbarem metallischem Material für die Aufnahme des Füllgutes, der an einem das Abgabeventil aufnehmenden, den Außenbehälter abschließenden Deckel befestigt ist, und mit einer verschließbaren öffnung am Boden des Außenbehälters zum Einfüllen des Treibmittels.The invention relates to a two-chamber pressure can for dispensing a filling material with a pressure-resistant outer container, with an inner container made of deformable metallic material for receiving the filling material, which is fastened to a lid receiving the dispensing valve and closing the outer container, and with a closable opening on the bottom of the outer container for filling the propellant.

Zweikammer-Druckdosen, bei denen das Treibmittel vom Füllgut getrennt ist, werden in zunehmendem Maße hergestellt. Sie werden z.B. als Spender für flüssige Füllgüter, als Creme-Spender, als Spender für Lebensmittel in pastöser Form oder dergleichen verwendet. Bei ihnen verwendet man vielfach die Umwelt nicht belastende komprimierte Gase, wie z.B. C02, N20, N2 oder Luft. Da nach den Vorschriften des Gesetzes über das Meß- und Eichwesen der das unter Druck stehende Treibmittel aufnehmende Raum maximal nur 40% des Volumens des Außenbehälters betragen darf, andererseits aber sichergestellt sein muß, daß bei weitgehend leerem Innenbehälter der Treibmitteldruck ausreichend hoch ist, um auch den letzten Rest des Füllgutes austreiben zu können, sind für das Treibmittel hohe Anfangsdrücke von über 10 Bar erforderlich. Diese sehr hohen Drücke führen zu erheblichen Dichtproblemen, da der Treibmitteldruck der vollen Dose auch über lange Zeit nicht absinken darf, weil anderenfalls das Füllgut nicht oder nicht vollständig ausgetrieben werden kann.Two-chamber pressure cans, in which the blowing agent is separated from the filling material, are increasingly being manufactured. They are used, for example, as dispensers for liquid filling goods, as cream dispensers, as dispensers for foods in pasty form or the like. They often use compressed gases that do not pollute the environment, such as C0 2 , N 2 0, N 2 or air. Since, according to the provisions of the law on measurement and calibration, the space which holds the pressurized propellant may not exceed 40% of the volume of the outer container, but on the other hand it must be ensured that the propellant pressure is sufficiently high to largely empty the inner container To be able to drive out the last rest of the contents, high initial pressures of over 10 bar are required for the blowing agent. These very high pressures lead to considerable sealing problems, since the propellant pressure of the full can must not drop even over a long period of time, because otherwise the contents cannot be driven out or cannot be driven out completely.

Es ist eine Zweikammer-Sprühdose der eingangs genannten Art bekannt (CH-PS 447 968), bei welcher ein Innenbehälter in Form eines faltbaren Beutels aus Kunststoff oder aus metallischem Material vorgesehen ist, der mit seinem offenen Ende zwischen oberem Bördelrand und Ventilteller des Abgabeventils eingeklemmt ist. Dies erfordert aber - auch im Hinblick auf das Gesetz über das Meß- und Eichwesen - eine Anpassung des offenen Endes des Innenbehälters an die übliche Abmessung (25,4mm) der den Ventilteller aufnehmenden öffnung im Deckel des Außenbehälters. Das stellt bei Verwendung eines Beutels aus flexiblem Kunststoff kein großes Problem dar, da ein solcher Beutel leicht herstellbar ist und bei bereits aufgesetztem und am Außenbehälter befestigten Deckel leicht durch dessen Ventilöffnung mit einem Druchmesser von 25,4mm in den Aussenbehälter einbringbar und danach durch Aufblasen wieder in seine Ausgangsform bringbar ist. Innenbehälter aus einem solchen flexibverlen Kunststoffmaterial sind aber oft nicht wendbar, weil sie leicht beschädigt werden können und weil ein solches Material in einem gewissen Maße für das Treibmittel durchlässig ist. Die Her- a stellung solcher Beutel aus Metall ist aber außerordentlich aufwendig. So muß der Innenbehälter an seinem offenen Ende faltenlos auf den Durchmesser der Ventilöffnung von 25,4mm eingezogen werden, was in der Praxis wegen der geringen Materialstärke außerordentlich schwierig durchzuführen ist. Außerdem muß der so vorgeformte Innenbehälter mit seinem Halsteil durch die Ventilöffnung des noch nicht befestigten Deckels durchgesteckt werden, worauf der den Deckel überragende Halsteil umgelegt werden muß, damit der Innenbehälter am Deckel gehalten wird. Auch dieser Vorgang ist nur in der Praxis mit großem Aufwand durchführbar.There is a two-chamber spray can of the type mentioned (CH-PS 447 968), in which an inner container is provided in the form of a foldable bag made of plastic or metallic material, which is clamped with its open end between the upper flange and valve plate of the dispensing valve is. However, this requires - also with regard to the law on measurement and calibration - an adaptation of the open end of the inner container to the usual dimension (25.4 mm) of the opening in the lid of the outer container receiving the valve plate. This is not a big problem when using a bag made of flexible plastic, since such a bag is easy to manufacture and, with the lid already attached and attached to the outer container, can be easily inserted into the outer container through its valve opening with a diameter of 25.4 mm and then inflated again can be brought into its original form. Inner containers made of such a flexible plastic material are often not reversible because they can be easily damaged and because such a material is permeable to the blowing agent to a certain extent. However, the production of such metal bags is extremely complex. So the inner container must be wrinkle-free at its open end be drawn into the diameter of the valve opening of 25.4 mm, which is extremely difficult to carry out in practice due to the low material thickness. In addition, the thus preformed inner container with its neck part must be pushed through the valve opening of the not yet attached lid, whereupon the neck part projecting beyond the lid must be folded over so that the inner container is held on the lid. This process can also only be carried out with great effort in practice.

Es ist auch eine Dose zur Aufnahme und Abgabe von flüssigen Massen unter Druck bekannt (DE-PS 2 103 447), bei welcher der Außenbehälter als übliche dreiteilige Dose ausgebildet ist, deren Mantel aus einem ebenen Blechschnitt zu einem Zylinder geformt ist, worauf die sich überlappenden Bereiche miteinander verschweißt werden. Die Enden dieses zylindrischen Mantels werden dann nach außen umgewölbt und zusammen mit einem entsprechenden Deckel und einem entsprechenden Bodenteil umgebördelt. Infolge der doppelten Längsnaht ergeben sich Dichtprobleme, wenn der Innenbehälter zwischen Mantel und Deckel eingebördelt wird, insbesondere dann, wenn ein Innenbehälter aus Metall verwendet wird, da sich im Bereich der umgebördelten Naht ein unstetiger Übergang ergibt.There is also a can for receiving and dispensing liquid masses under pressure (DE-PS 2 103 447), in which the outer container is designed as a conventional three-part can, the jacket of which is formed from a flat sheet metal cut into a cylinder, which is followed by the overlapping areas are welded together. The ends of this cylindrical jacket are then bulged outwards and flanged together with a corresponding cover and a corresponding base part. As a result of the double longitudinal seam, there are sealing problems when the inner container is crimped between the jacket and the cover, in particular when an inner container made of metal is used, since there is a discontinuous transition in the region of the flanged seam.

Der Erfindung liegt die Aufgabe zugrunde, eine Zweikammer-Druckdose der eingangs genannten Art zu schaffen, die bei einfacher Fertigung.auch über längere Zeiträume dicht bleibt. Dies wird erfindungsgemäß dadurch erreicht, daß der Außenbehälter mit einem nahtlosen Mantel versehen ist, daß der metallene Innenbehälter die Mantelinnenwand des Außenbehälters zumindest in einem der oberen Öffnung benachbarten Umfangsbereich berührt und daß in diesem Umfangsbereich, vorzugsweise in einen zum Behälterboden hin unmittelbar benachbarten Bereich hineinreichenden Umfangsbereich, eine Dichtungsmittelschicht vorgesehen ist.The invention has for its object to provide a two-chamber pressure can of the type mentioned, which remains simple with simple manufacture. This is achieved according to the invention in that the outer container is provided with a seamless jacket, that the metal inner container Touches the inner wall of the outer container at least in a circumferential area adjacent to the upper opening and that a sealant layer is provided in this circumferential area, preferably into a circumferential area directly adjacent to the container bottom.

Es hat sich gezeigt, daß durch diese Maßnahmen einerseits eine einfache, problemlose Fertigung ermöglicht wird, während andererseits eine Abdichtung auch über lange Zeiträume sichergestellt ist.It has been shown that, on the one hand, these measures enable simple, problem-free production, while on the other hand sealing is ensured even over long periods of time.

Vorzugsweise ist der Außenbehälter im Bereich seines offenen Endes geringfügig verengt, oder/und es ist der Innenbehälter im Bereich seines offenen Endes geringfügig erweitert, wodurch sich einerseits ein begrenzter Anlagebereich zwischen Außenbehälter und Innenbehälter ergibt, während gleichzeitig in dem weiteren, zum Boden hin liegenden Bereich ein Ringraum für das Treibmittel entsteht.The outer container is preferably narrowed slightly in the region of its open end, and / or the inner container is slightly expanded in the region of its open end, which on the one hand results in a limited contact area between the outer container and the inner container, while at the same time in the further region lying towards the bottom an annular space for the propellant is created.

Der Innenbehälter kann zweckmäßig aus Aluminium hergestellt sein, das durch Glühbehandlung weich gemacht worden ist.The inner container can expediently be made of aluminum which has been softened by annealing.

Vorteilhafterweise kann der Mantel des Außenbehälters zusammen mit dem Boden aus einem Stück bestehen. Ein solcher Behälter ist durch Fließpressen besonders einfach herstellbar. Er läßt sich auch besonders leicht rundum lackieren und bedrucken.The jacket of the outer container can advantageously consist of one piece together with the base. Such a container is particularly easy to manufacture by extrusion. It is also particularly easy to paint and print all around.

Die Erfindung ist im folgenden anhand der Zeichnung an einem Ausführungsbeispiel näher erläutert. In der Zeichnung zeigen:

  • Fig. 1: schematisch eine Schnittansicht einer Zweikammer-Druckdose gemäß der Erfindung und
  • Fig. 2: einen Längsschnitt durch den oberen Teil der Dose nach Fig. 1 in vergrößertem Maßstab, und zwar vor dem Aufbringen des Deckels.
The invention is explained below with reference to the drawing using an exemplary embodiment. The drawing shows:
  • Fig. 1: schematically a sectional view of a two-chamber pressure can according to the invention and
  • Fig. 2: a longitudinal section through the upper part of the box of FIG. 1 on an enlarged scale, before the lid is attached.

In der Zeichnung ist mit 10 der Außenbehälter bezeichnet, der mit dem gewölbten Boden 12 aus einem Stück bestehen kann. Die Herstellung eines solchen napfförmigen Körpers kann in bekannter Weise durch Fließpressen erfolgen. Im Boden 12 ist eine Öffnung vorgesehen, durch die später das Treibmittel eingeführt wird. Diese öffnung wird nach dem Einfüllen des Treibmittels mit einem Stopfen 21 verschlossen.In the drawing, 10 denotes the outer container, which can consist of one piece with the curved bottom 12. Such a cup-shaped body can be produced in a known manner by extrusion. An opening is provided in the bottom 12 through which the propellant is later introduced. This opening is closed with a plug 21 after the propellant has been filled in.

Der Außenbehälter kann an seinem offenen Ende bei 14 verengt sein. Der Rand ist nach außen umgebogen. Er dient zur Aufnahme des oberen Randes 16 des Innengefäßes 11 und des Außenrandes des Deckels 18.The outer container can be narrowed at 14 at its open end. The edge is bent outwards. It serves to receive the upper edge 16 of the inner vessel 11 and the outer edge of the lid 18.

Das Innengefäß 11 besteht aus weichem Material, vorzugsweise aus weich geglühtem Aluminium. Es kann im Bereich seines oberen Randes bei 15 etwas erweitert sein. Der Rand ist ebenfalls nach außen umgebogen. Die Außenabmessung des Innenbehälters 11 ist bei 15 so gewählt, daß er an der Innenwand des Mantels des Außenbehälters 10 anliegt oder doch nur einen sehr geringen Abstand hat, so daß der Innenbehälter leicht durch die öffnung des Außenbehälters in diesen eingeschoben werden kann. Durch die erwähnte Ausbildung des Innenbehälters 11 bzw. des Außenbehälters 10 wird nach dem Einsetzen des Innenbehälters ein Ringraum 22 gebildet, der zur Aufnahme des Treibmittels dient. Außerdem läßt sich der Innenbehälter besonders leicht in den Außenbehälter einsetzen.The inner vessel 11 consists of soft material, preferably of soft annealed aluminum. It can be somewhat expanded in the area of its upper edge at 15. The edge is also bent outwards. The outer dimension of the inner container 11 is chosen at 15 so that it is on the inner wall of the shell of the outer container 10 is present or is only a very short distance, so that the inner container can be easily inserted through the opening of the outer container in this. Due to the above-mentioned design of the inner container 11 or the outer container 10, an annular space 22 is formed after the inner container has been inserted, which serves to receive the propellant. In addition, the inner container can be inserted particularly easily into the outer container.

An der Berührungsstelle 14,15 zwischen Innenbehälter 11 und Außenbehälter 10, vorzugsweise auch in einem in Richtung zum Boden 12 hin angrenzenden Umfangsbereich, ist eine ringförmige Schicht 17 angeordnet, die aus irgendeinem geeigneten Dichtungsmittel, wie z.B. Latex, besteht. Diese Schicht kann z.B. aufgespritzt werden. Durch die besondere Anordnung dieser Dichtungsmittelschicht 17 wird eine zusätzliche Abdichtung zwischen Innenbehälter und Außenbehälter erreicht, die der durch die übliche Dichtmittelschicht im Deckelrand hervorgerufenen Dichtung zwischen Innenbehälter und Außenbehälter vorgeschaltet ist. Dadurch wird eine sehr sichere Abdichtung auch über lange Zeiträume gewährleistet.At the contact point 14, 15 between the inner container 11 and outer container 10, preferably also in a peripheral region adjacent to the bottom 12, an annular layer 17 is arranged, which is made of any suitable sealant, such as e.g. Latex. This layer can e.g. be sprayed on. The special arrangement of this sealant layer 17 results in an additional seal between the inner container and the outer container, which is connected upstream of the seal between the inner container and the outer container caused by the usual sealant layer in the edge of the lid. This ensures a very secure seal even over long periods of time.

Die Herstellung der erfindungsgemäßen Zweikammerdose geht folgendermaßen vor sich. Es wird der Außenbehälter 10 mit seinem Boden in bekannter Weise durch Fließpressen hergestellt, und es wird der freie Rand etwas eingezogen und nach außen umgebogen, wie es in Fig. 2 dargestellt ist. Es wird dann das Loch im gewölbten Boden 12 hergestellt, und es wird die Dichtungsmittelschicht 17 angebracht.The two-chamber can according to the invention is produced as follows. The bottom of the outer container 10 is produced in a known manner by extrusion, and the free edge is slightly drawn in and bent outwards, as shown in FIG. 2. The hole is then made in the domed bottom 12 and the sealant layer 17 is applied.

Der dünnwandige Innenbehälter 11 kann in ähnlicher Weise durch Fließpressen hergestellt werden. Er wird dann in bekannter Weise weiterbehandelt, insbesondere weichgeglüht. Anschließend kann eine Innenschutzschicht aufgebracht werden, die den Behälter vor einem eventuell agressiven Füllgut schützt. Anschließend kann der obere Teil etwas erweitert werden. Er wird dann nach außen umgelegt.The thin-walled inner container 11 can be produced in a similar manner by extrusion. It is then further treated in a known manner, in particular soft annealed. An inner protective layer can then be applied, which protects the container from a possibly aggressive filling material. Then the upper part can be expanded a little. It is then turned outside.

Der Innenbehälter 11 wird in den Außenbehälter 10 eingesteckt. Dadurch wird die Dichtungsmittelschicht 17 etwas zurückgeschoben. Sie legt sich dadurch vor den Spalt zwischen Innenbehälter und Außenbehälter. Anschließend wird der Deckel aufgesetzt, dessen Rand in üblicher Weise ebenfalls eine Dichtungsmittelschicht enthält. Der Deckelrand wird zusammen mit den Rändern von Außenbehälter 10 und Innenbehälter 11 umgebördelt, wodurch eine feste Ver- . bindung der Teile hergestellt wird.The inner container 11 is inserted into the outer container 10. As a result, the sealant layer 17 is pushed back somewhat. As a result, it lies in front of the gap between the inner container and the outer container. Then the lid is put on, the edge of which also contains a sealant layer in the usual way. The edge of the lid is flanged together with the edges of the outer container 10 and inner container 11, whereby a fixed connection. binding of the parts is produced.

Anschließend kann der Innenbehälter 11 durch die Ventilöffnung im Deckel 18 mit Füllgut gefüllt werden, worauf das Ventil 19 mit einem Ventilteller 20 am Deckel 18 befestigt und damit der Innenbehälter verschlossen wird. Abschließend wird der Raum 22 zwischen Innenbehälter und Außenbehälter mit Treibmittel durch die öffnung im Boden 12 hindurchgefüllt, worauf diese öffnung mit einem Stopfen 21 verschlossen wird. Das Treibmittel wirkt auf die in beschriebener Weise vor dem Spalt zwischen Innenbehälter und Außenbehälter liegende Dichtungsmittelschicht 17 ein und preßt den davorliegenden Teil gegen diesen Spalt, wodurch eine wirksame zusätzliche Ab-Es dichtung erreicht wird. ergibt sich so eine sehr wirksame Dichtung, die über lange Zeit auch bei hohen Treibmitteldrücken ein Austreten von Treibmittel verhindert.Subsequently, the inner container 11 can be filled with filling material through the valve opening in the lid 18, whereupon the valve 19 is fastened to the lid 18 with a valve plate 20 and the inner container is thus closed. Finally, the space 22 between the inner container and the outer container is filled with propellant through the opening in the base 12, whereupon this opening is closed with a stopper 21. The propellant acts on the sealant layer 17 lying in front of the gap between the inner container and the outer container in the manner described, and presses the part in front of it against this gap, as a result of which an effective additional sealing It seal is achieved. This results in a very effective seal that prevents the blowing agent from escaping for a long time, even at high propellant pressures.

Claims (5)

1. Zweikammer-Druckdose zur Abgabe eines Füllgutes mit einem druckfesten Außenbehälter, mit einem Innenbehälter aus verformbarem metallischem Material für die Aufnahme des Füllgutes, der an einem das Abgabeventil aufnehmenden, den Außenbehälter abschließenden Deckel befestigt ist, und mit einer verschließbaren öffnung am Boden des Außenbehälters zum Einfüllen des Treibmittels, dadurch gekennzeichnet, daß der Außenbehälter (10) mit einem nahtlosen Mantel versehen ist, daß der metallene Innenbehälter (11) die Mantelinnenwand des Außenbehälters wenigstens in einem der oberen Öffnung benachbarten Umfangsbereich berührt und daß in diesem Umfangsbereich, vorzugsweise auch in einem zum Behälterboden hin unmittelbar benachbarten Bereich, eine Dichtunasmittelschicht (17) vorgesehen ist. 1st Two-chamber pressure canister for dispensing a filling material with a pressure-resistant outer container, with an inner container made of deformable metallic material for receiving the filling material, which is attached to a lid that accommodates the dispensing valve and closes the outer container, and with a closable opening at the bottom of the outer container for filling of the propellant, characterized in that the outer container (10) is provided with a seamless jacket, that the metal inner container (11) touches the jacket inner wall of the outer container at least in a peripheral region adjacent to the upper opening and that in this peripheral region, preferably also in a for Bottom of the container immediately adjacent area, a sealant layer (17) is provided. 2. Zweikammer-Druckdose nach Anspruch 1, dadurch gekennzeichnet, daß der Außenbehälter (10) im Bereich seines offenen Endes (14) geringfügig verenqt ist.2. Two-chamber pressure can according to claim 1, characterized in that the outer container (10) in the region of its open end (14) is slightly veren q t. 3. Zweikammer-Druckdose nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß der Innenbehälter (11) im Bereich seines offenen Endes (15) geringfügig erweitert ist.3. Two-chamber pressure can according to claim 1 or 2, characterized records that the inner container (11) is slightly expanded in the region of its open end (15). 4. Zweikammer-Druckdose nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, daß der Innenbehälter (11) aus Aluminium besteht.4. Two-chamber pressure can according to one of claims 1 to 3, characterized in that the inner container (11) consists of aluminum. 5. Zweikammer-Druckdose nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß der Mantel des Außenbehälters (10) zusammen mit dem Boden (12) aus einem Stück besteht.5. Two-chamber pressure can according to claim 1 or 2, characterized in that the jacket of the outer container (10) together with the bottom (12) consists of one piece.
EP80101579A 1979-03-30 1980-03-25 Twin chamber pressure container for dispensing a product Ceased EP0017147A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE2912670 1979-03-30
DE19792912670 DE2912670A1 (en) 1979-03-30 1979-03-30 TWO-CHAMBER PRESSURE CAN FOR DISPENSING A FILLING MATERIAL

Publications (1)

Publication Number Publication Date
EP0017147A1 true EP0017147A1 (en) 1980-10-15

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EP80101579A Ceased EP0017147A1 (en) 1979-03-30 1980-03-25 Twin chamber pressure container for dispensing a product

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EP (1) EP0017147A1 (en)
DE (1) DE2912670A1 (en)

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0326052A2 (en) * 1988-01-27 1989-08-02 Gerd Stoffel Method of making a pressure sealing between two chambers
GB2233396A (en) * 1989-06-24 1991-01-09 Miczka Stefan Pressurised container
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
EP0755877A1 (en) * 1995-07-28 1997-01-29 IPC Packaging AG Dual compartment receptacle with tapered inner receptacle
WO1998032675A2 (en) * 1997-01-25 1998-07-30 Bristol-Myers Squibb Company Multi-dose wound gel
WO2001021488A1 (en) 1999-09-21 2001-03-29 Stoffel Hans F Two-chamber container and method for gassing the same
WO2002056949A1 (en) * 2001-01-17 2002-07-25 3M Innovative Properties Company Medicinal aerosols
FR2820127A1 (en) 2001-01-30 2002-08-02 Pechiney Emballage Alimentaire Container/dispenser for product in liquid to paste form has inner metal or metal/plastic pouch that is both inflatable and collapsible
FR2846636A1 (en) * 2002-11-04 2004-05-07 Hilti Ag Pressure container for gas powered sealing tool has inner and outer pressure containers with base and cover with dispensing valve

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5137179A (en) * 1990-02-15 1992-08-11 Hans Stoffel Containers and methods for preparing and manufacturing the same
HU222174B1 (en) 2000-11-03 2003-04-28 Vilmos Weiperth Dispensing device for storing and dispensing liquid. and plastic materials by the help of pressurized gas

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Publication number Priority date Publication date Assignee Title
US2816691A (en) * 1954-08-16 1957-12-17 Lawrence T Ward Spray device having a flexible sac lining
CH447968A (en) * 1966-03-07 1967-11-30 Continental Can Co Spray can
DE2001711A1 (en) * 1970-01-15 1971-07-22 Bi Aerosol Verpackungs Gmbh & Device for dispensing liquid and pasty masses
DE2103447B1 (en) * 1971-01-26 1972-08-17 Presspack Co., Schaffhausen (Schweiz) Can for receiving and dispensing liquid masses under pressure

Cited By (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0326052A2 (en) * 1988-01-27 1989-08-02 Gerd Stoffel Method of making a pressure sealing between two chambers
EP0326052A3 (en) * 1988-01-27 1990-09-12 Gerd Stoffel Method of making a pressure sealing between two chambers
AU617412B2 (en) * 1988-01-27 1991-11-28 Gerd Stoffel Process for producing a two-chamber pressurized package
GB2233396A (en) * 1989-06-24 1991-01-09 Miczka Stefan Pressurised container
GB2233396B (en) * 1989-06-24 1992-11-04 Miczka Stefan Pressurised container
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.
EP0494004A1 (en) * 1990-12-31 1992-07-08 L'oreal Device for dispensing, under pressure, a product, especially a foaming product, and methods of 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
EP0755877A1 (en) * 1995-07-28 1997-01-29 IPC Packaging AG Dual compartment receptacle with tapered inner receptacle
US5964021A (en) * 1995-07-28 1999-10-12 Ipc International Packaging Ltd. Double chamber container with tapering/conical inner container
WO1998032675A2 (en) * 1997-01-25 1998-07-30 Bristol-Myers Squibb Company Multi-dose wound gel
WO1998032675A3 (en) * 1997-01-25 2000-06-29 Bristol Myers Squibb Co Multi-dose wound gel
WO2001021488A1 (en) 1999-09-21 2001-03-29 Stoffel Hans F Two-chamber container and method for gassing the same
WO2002056949A1 (en) * 2001-01-17 2002-07-25 3M Innovative Properties Company Medicinal aerosols
FR2820127A1 (en) 2001-01-30 2002-08-02 Pechiney Emballage Alimentaire Container/dispenser for product in liquid to paste form has inner metal or metal/plastic pouch that is both inflatable and collapsible
FR2846636A1 (en) * 2002-11-04 2004-05-07 Hilti Ag Pressure container for gas powered sealing tool has inner and outer pressure containers with base and cover with dispensing valve

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