EP0066696A1 - Dual-compartment pressurized pack - Google Patents

Dual-compartment pressurized pack Download PDF

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Publication number
EP0066696A1
EP0066696A1 EP82103237A EP82103237A EP0066696A1 EP 0066696 A1 EP0066696 A1 EP 0066696A1 EP 82103237 A EP82103237 A EP 82103237A EP 82103237 A EP82103237 A EP 82103237A EP 0066696 A1 EP0066696 A1 EP 0066696A1
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EP
European Patent Office
Prior art keywords
valve
inner container
chamber pressure
container
open holder
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.)
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Application number
EP82103237A
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German (de)
French (fr)
Inventor
Andreas Eduard Fischer
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INSTAFIX AG
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INSTAFIX AG
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Publication date
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Publication of EP0066696A1 publication Critical patent/EP0066696A1/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
    • B65D83/60—Contents and propellant separated

Definitions

  • the invention relates to a two-chamber pressure pack according to the preamble of claim 1.
  • Such pressure packs mainly take up liquids or pastes and are therefore optionally provided with spray, paste or tilting valves.
  • the insert accommodating one of these valves corresponds to that of a conventional spray can, but also serves to hang the flexible inner container in the outer container corresponding to an aerosol can.
  • Compressible gases, such as nitrogen or air, which are enclosed between the outer and inner container, are preferably used as the pressure medium, the filling usually taking place through the bottom of the outer container.
  • Two-chamber pressure packs of this type have the advantage that the compressed gas is not released when the contents of the pack are discharged through the valve, but remains enclosed in the outer container and does not come into contact with the contents of the inner container.
  • the compressed gas compresses the inner container, which preferably consists of a polyethylene film, in such a way that it shrinks around its filling. It is important to dispense with a riser pipe to the valve and to shrink the container so that it can be emptied as far as possible.
  • Two-chamber pressure packs of this type are known.
  • the filled inner container is often given a shape which in turn determines the shrunk shape of the emptied inner container; this is chosen so that the largest possible amount of its contents can be squeezed out.
  • you e.g. provides the inner container with a square to rectangular bottom, then the side parts of the inner container shrink to form longitudinal folds which start from the corners of the bottom and lie approximately on top of one another in the central axis. It then turns out, however, that these measures are not sufficient, in particular for viscous goods. This is because there is a considerable amount of residue left in the shrunk inner container, which stands in front of the floor and is enclosed by the side walls lying on top of one another and sealing against one another.
  • the invention has for its object to design a two-chamber pressure pack of the type described so that the remaining in the inner container after complete shrinkage is reduced and that from the pack spreadable amount is increased accordingly.
  • the inventive design of the two-chamber pressure pack leads to a more extensive emptying of the inner container, although the open holder limits the shrinking of the inner container. This is made possible by the channel training in the open holder.
  • the radial bores ensure that there is practically no residue between the shrunk inner container walls and the open holder, while the axial channel not only ensures that the contents of the container are discharged through the radial channels, but also creates a permanently open connection to the area located directly above the bottom of the inner container , from which the packaged goods can also be removed through the valve.
  • the invention has the advantage that it significantly increases the degree of emptying of a two-chamber pressure pack and thereby reduces the loss of filling material that has occurred up to now.
  • the measures required for this are comparatively easy to take and therefore do not affect the production of the two-chamber pressure packs that have been used up to now.
  • the open holder is designed as a tubular body, the valve-side end of which surrounds a cladding tube fastened to the insert.
  • the radial channels can pass through in a tubular body Realize perforations, while the cladding tube serves to hold the tubular body in its central position without the need for a firm connection between the cladding tube and the body.
  • the tubular body can also be shown in simplified form on an open holder of this type. It is sufficient e.g. one spiral wrapped in a film, which has recesses forming the radial openings on its long sides and has the advantage of being able to be compressed even more or less strongly.
  • valve In general, the valve must be secured against blockages by the shrinking wall of the inner container in such two-chamber pressure packs. This is usually done by a socket attached to the inside of the valve-carrying insert. This is also used in an embodiment of the invention for its implementation. This is done in that the cladding tube forms a funnel, the upper edge of which forms the free end of the bushing surrounding the valve and the outlet of which is designed as a tube enclosing the open container.
  • the two-chamber pressure pack shown consists of a tin can, which forms an outer container 1 which retains its shape when the pack is in use. Since the container is filled with a pressurized gas, its bottom 2 is arched inwards as shown and there is provided with a perforation 3 which is closed with a plug 4 after being filled with the pressurized gas.
  • This stopper is also a safeguard against overpressure, because it consists of an elastomer that melts at certain heat levels and allows the pressure medium to escape safely.
  • the container is closed on its side opposite the base 2 with a conventional aerosol clinching device. This means that an insert 5 with a seal 6 with its flanged edge 7 encloses and seals the opening of the outer container 1.
  • the insert 5 has in the middle a recess 8 for the housing 9 of a spray valve 10, also of a known design.
  • the hollow valve rod 11 carries the valve disk 12, which is made of an elastomer, the seat of which is indicated at 13 in FIG. 1.
  • the upper tubular housing part 14 serves as a return spring for the valve rod.
  • the insert 5 has a crimped edge 15, which is used to fasten a bushing 16. This is fixed with its upper edge in the insert 5.
  • the free edge of the cylindrical part of the bushing 16 merges into a funnel-shaped part 17.
  • the larger funnel opening 18 starts at the free edge, while the narrowed part of the funnel ends in a cladding tube 19.
  • the cladding tube surrounds an open holder, generally designated 20. This lies coaxially in an inner container 21 made of flexible material, which in turn is attached to the upper edge of the outer container 1 with the aerosol clinching device.
  • This inner container is filled with a liquid or a paste, for example.
  • the open holder 20 consists of a plastic film 23 (FIG. 3) which is wound spirally. According to the exemplary embodiment, there is approximately a full and a half rotation about the longitudinal axis of the film section.
  • the outer longitudinal edge 25 of the film section carries a plurality of recesses 26 which end in front of the inner edge 24 at 27.
  • Each recess has parallel vertical longitudinal edges 28, 29 which run to the edge 25 and end at a semicircular end edge 30.
  • the spiral mentioned encloses an axial channel 31 which, after installation of the open holder 20, extends from the bottom 32 of the inner container 21 to directly under the valve plate 12 is enough.
  • the arrangement is such that when the valve is open, the valve plate 12 cannot collide with the face 33 of the open holder 20 lying at the top. Rather, there is a gap 34 between the valve plate 12 and the end face 33, which gap is large enough to allow the contents of the inner container 21 to pass so that it can enter through openings 35 in the valve rod and can be discharged through a nozzle 36.
  • the open holder 20 is supported with its lower end 37 on a cone 38 and fixed radially, which is formed on the inside of the bottom 32.
  • the middle position is secured by the cladding tube 19.
  • the lifting of the valve plate 12 from its seat 13 causes the compressed gas enclosed in the outer container 1 to expand, thereby shrinking the filling space of the inner container 21 by compressing it.
  • the mass contained in the filling space 39 of the inner container between the cladding tube 19 and the open holder 20 enters the space which is present directly under the valve and can thus reach the hollow valve rod.
  • the wall thereof shrinks more and more until it lies on the open holder 20. This is made possible by the openings formed by the radial channels 26, through which the contents enclosed between the open holder 20 and the walls pass into the axial channel 31 can from where it gets into the slot 34 under the valve. Since the open holder is inserted sufficiently far into the container 21, the axial channel 31 also reaches the space immediately above the bottom 32, so that the filling space 39 is almost completely emptied here as well.

Abstract

A dual-compartment pressurised pack according to Figure 1, the outer container of which is sealed with an insert accommodating a valve, to which an inside container is attached which is squeezed with the aid of a pressure medium enclosed between the outer and the inside containers when the valve is opened to discharge its contents. With the aim of reducing the residue of the contents left in the inside container after complete squeezing and correspondingly increasing the quantities of the contents which can be discharged from the pack, provision is made for the squeezing capacity of the inside container (21) to be limited with the aid of a concentrically arranged holding-open device (20) which has an axial channel (31) which leads below the valve (10) and is connected to the inside container via a plurality of radial apertures (26). <IMAGE>

Description

Die Erfindung betrifft eine Zweikammer-Druckpackung nach dem Oberbegriff des Anspruches 1.The invention relates to a two-chamber pressure pack according to the preamble of claim 1.

Derartige Druckpackungen nehmen hauptsächlich Flüssigkeiten oder Pasten auf und sind daher wahlweise mit Sprüh-, Pasten- oder Kippventilen versehen. Der eines dieser Ventile aufnehmende Einsatz entspricht dem einer herkömmlichen Sprühdose, dient aber auch dazu., den flexiblen Innenbehälter in den einer Ärosoldose entsprechenden Außenbehälter aufzuhängen. Als Druckmedium dienen vorzugsweise komprimierbare Gase, wie Stickstoff oder Luft, welche zwischen Außen- und Innenbehälter eingeschlossen sind, wobei die Füllung meistens durch den Boden des Außenbehälters erfolgt. Zweikammer-Druckpackungen dieser Art haben den Vorteil, daß das Druckgas beim Ausbringen des Packungsinhaltes durch das Ventil nicht frei wird, sondern in dem Außenbehälter eingeschlossen bleibt und nicht mit dem Inhalt des Innenbehälters in Berührung kommt. Das Druckgas preßt bei geöffnetem Ventil den vorzugsweise aus einer Polyäthylenfolie bestehenden Innenbehälter so zusammen, daß dieser um seine Füllung schrumpft. Dabei kommt es darauf an, auf ein Steigrohr zum Ventil zu verzichten und den Behälter so zu schrumpfen, daß er möglichst weitgehend entleert werden kann.Such pressure packs mainly take up liquids or pastes and are therefore optionally provided with spray, paste or tilting valves. The insert accommodating one of these valves corresponds to that of a conventional spray can, but also serves to hang the flexible inner container in the outer container corresponding to an aerosol can. Compressible gases, such as nitrogen or air, which are enclosed between the outer and inner container, are preferably used as the pressure medium, the filling usually taking place through the bottom of the outer container. Two-chamber pressure packs of this type have the advantage that the compressed gas is not released when the contents of the pack are discharged through the valve, but remains enclosed in the outer container and does not come into contact with the contents of the inner container. When the valve is open, the compressed gas compresses the inner container, which preferably consists of a polyethylene film, in such a way that it shrinks around its filling. It is important to dispense with a riser pipe to the valve and to shrink the container so that it can be emptied as far as possible.

Zweikammer-Druckpackungen dieser Art sind bekannt. Bei diesen Packungen gibt man dem gefüllten Innenbehälter häufig eine Form, die ihrerseits die zusammengeschrumpfte Form des entleerten Innenbehälters bestimmt; diese wählt man so, daß eine möglichst große Menge seines Inhaltes ausgepreßt werden kann. Wenn man z.B. den Innenbehälter mit einem quadratischen bis rechteckigen Boden versieht, dann schrumpfen die Seitenteile des Innenbehälters unter Bildung von Längsfalten, die von den Ecken des Bodens ausgehen und sich etwa in der Mittelachse aufeinanderlegen. Es zeigt sich dann allerdings, daß diese Maßnahmen insbesondere bei zähflüssigem Gut nicht ausreichen. In dem zusammengeschrumpften Innenbehälter bleibt nämlich ein erheblicher Rest zurück, der vor dem Boden steht und von den aufeinanderliegenden und gegeneinander abdichtenden Seitenwänden eingeschlossen wird.Two-chamber pressure packs of this type are known. In these packs, the filled inner container is often given a shape which in turn determines the shrunk shape of the emptied inner container; this is chosen so that the largest possible amount of its contents can be squeezed out. If you e.g. provides the inner container with a square to rectangular bottom, then the side parts of the inner container shrink to form longitudinal folds which start from the corners of the bottom and lie approximately on top of one another in the central axis. It then turns out, however, that these measures are not sufficient, in particular for viscous goods. This is because there is a considerable amount of residue left in the shrunk inner container, which stands in front of the floor and is enclosed by the side walls lying on top of one another and sealing against one another.

Der Erfindung liegt die Aufgabe zugrunde, eine Zweikammer-Druckpackung der beschriebenen Art so auszubilden, daß der im Innenbehälter nach vollständigem Schrumpfen verbleibende Rest verkleinert und die aus der Packung ausbringbare Menge entsprechend vergrößert wird.The invention has for its object to design a two-chamber pressure pack of the type described so that the remaining in the inner container after complete shrinkage is reduced and that from the pack spreadable amount is increased accordingly.

Gemäß der Erfindung wird diese Aufgabe durch die kennzeichnenden Merkmale der Patentansprüche gelöst.According to the invention, this object is achieved by the characterizing features of the claims.

Überraschenderweise führt die erfindungsgemäße Ausbildung der Zweikammer-Druckpackung zu einer weitergehenderen Entleerung des Innenbehälters, obwohl der Offenhalter das Schrumpfen des Innenbehälters begrenzt. Das wird durch die Kanalausbildung im Offenhalter möglich. Die Radialbohrungen sorgen nämlich dafür, daß zwischen den geschrumpften Innenbehälterwänden und dem Offenhalter praktisch kein Rest zurückbleibt, während der Axialkanal nicht nur die Abführung des Behälterinhaltes durch die Radialkanäle besorgt, sondern auch eine ständig offenbleibende Verbindung zu dem unmittelbar über dem Boden des Innenbehälters befindlichen Bereich herstellt, aus dem das dort stehende Verpackungsgut ebenfalls durch das Ventil abgeführt werden kann.Surprisingly, the inventive design of the two-chamber pressure pack leads to a more extensive emptying of the inner container, although the open holder limits the shrinking of the inner container. This is made possible by the channel training in the open holder. The radial bores ensure that there is practically no residue between the shrunk inner container walls and the open holder, while the axial channel not only ensures that the contents of the container are discharged through the radial channels, but also creates a permanently open connection to the area located directly above the bottom of the inner container , from which the packaged goods can also be removed through the valve.

Die Erfindung hat den Vorteil, daß sie den Entleerungsgrad einer Zweikammer-Druckpackung wesentlich anhebt und dadurch die bislang auftretenden Füllgutverluste vermindert. Die hierzu erforderlichen Maßnahmen sind vergleichsweise einfach zu treffen und beeinträchtigen deshalb nicht die Produktion der bislang schon benutzten Zweikammer-Druckpackungen.The invention has the advantage that it significantly increases the degree of emptying of a two-chamber pressure pack and thereby reduces the loss of filling material that has occurred up to now. The measures required for this are comparatively easy to take and therefore do not affect the production of the two-chamber pressure packs that have been used up to now.

Insbesondere wird nämlich der Offenhalter als rohrförmiger Körper ausgebildet, dessen ventilseitiges Ende ein an dem Einsatz befestigtes Hüllrohr umgibt. In einem rohrförmigen Körper lassen sich die Radialkanäle durch Perforationen verwirklichen, während das Hüllrohr dazu dient, den rohrförmigen Körper in seiner Mittelstellung zu halten, ohne daß deswegen schon eine feste Verbindung zwischen Hüllrohr und Körper zu bestehen braucht.In particular, the open holder is designed as a tubular body, the valve-side end of which surrounds a cladding tube fastened to the insert. The radial channels can pass through in a tubular body Realize perforations, while the cladding tube serves to hold the tubular body in its central position without the need for a firm connection between the cladding tube and the body.

Man kann an einem Offenhalter dieser Art den rohrförmigen Körper auch vereinfacht darstellen. Es genügt z.B. eins aus einer Folie umwickelte Spirale, welche an ihren Längsseiten die Radialöffnungen bildende Aussparungen aufweist und den Vorteil hat, sich ihrerseits noch mehr oder weniger stark zusammenpressen zu lassen.The tubular body can also be shown in simplified form on an open holder of this type. It is sufficient e.g. one spiral wrapped in a film, which has recesses forming the radial openings on its long sides and has the advantage of being able to be compressed even more or less strongly.

Im allgemeinen muß man bei derartigen Zweikammer-Druckpackungen das Ventil gegen Blockierungen durch die schrumpfende Wand des Innenbehälters sichern. Das geschieht in der Regel durch eine an dem das Ventil tragenden Einsatz innen befestigte Buchse. Diese wird in einer Ausführungsform der Erfindung für deren Verwirklichung mitverwendet. Das geschieht dadurch, daß das Hüllrohr einen Trichter bildet, dessen oberer Rand das freie Ende der das Ventil umgebenden Buchse bildet und dessen Auslauf als den Offenbehälter umschließendes Rohr ausgebildet ist.In general, the valve must be secured against blockages by the shrinking wall of the inner container in such two-chamber pressure packs. This is usually done by a socket attached to the inside of the valve-carrying insert. This is also used in an embodiment of the invention for its implementation. This is done in that the cladding tube forms a funnel, the upper edge of which forms the free end of the bushing surrounding the valve and the outlet of which is designed as a tube enclosing the open container.

Die Einzelheiten, weiteren Merkmale und andere Vorteile der Erfindung ergeben sich aus der nachfolgenden Beschreibung einer Ausführungsform anhand der Figuren in der Zeichnung; es zeigen

  • Fig. 1 im Längsschnitt eine Ausführungsform der Erfindung mit geschlossenem Ventil,
  • Fig. 2 den Gegenstand der Fig. 1 in abgebrochener Darstellung bei geöffnetem Ventil,
  • Fig. 3 einen Schnitt längs der Linie III-III der Fig. 1 und
  • Fig. 4 eine Ansicht in Richtung des Pfeiles IV der Fig. 1.
The details, further features and other advantages of the invention result from the following description of an embodiment with reference to the figures in the drawing; show it
  • 1 shows a longitudinal section of an embodiment of the invention with the valve closed,
  • 2 shows the subject of FIG. 1 in a broken view with the valve open,
  • Fig. 3 is a section along the line III-III of Fig. 1 and
  • 4 is a view in the direction of arrow IV of FIG. 1st

Die dargestellte Zweikammer-Druckpackung besteht aus einer Weißblechdose, welche einen im Gebrauch der Packung seine Form beibehaltenden Außenbehälter 1 bildet. Da der Behälter mit einem Druckgas gefüllt wird, ist sein Boden 2 wie dargestellt nach innen gewölbt und dort mit einer Perforation 3 versehen, die nach Füllung mit dem Druckgas mit Hilfe eines Stopfens 4 verschlossen ist. Dieser Stopfen stellt gleichzeitig eine Sicherung gegen überdruck dar, weil er aus einem Elastomer besteht, das bei bestimmten Wärmegraden schmilzt und das Druckmedium gefahrlos entweichen läßt. Der Behälter ist an seiner dem Boden 2 gegenüberliegenden Seite mit einer üblichen Aerosol-Clinsch-Vorrichtung verschlossen. Das bedeutet, daß ein Einsatz 5 mit einer Dichtung 6 mit seinem umgebördelten Rand 7 die öffnung des Außenbehälters 1 umfaßt und abdichtet. Der Einsatz 5 hat in der Mitte eine Aussparung 8 für das Gehäuse 9 eines Sprühventiles 10 ebenfalls bekannter Ausführung. Die hohle Ventilstange 11 trägt den aus einem Elastomer bestehenden Ventilteller 12, dessen Sitz bei 13 in Fig. 1 angedeutet ist. Der obere rohrförmige Gehäuseteil 14 dient als Rückstellfeder für die Ventilstange.The two-chamber pressure pack shown consists of a tin can, which forms an outer container 1 which retains its shape when the pack is in use. Since the container is filled with a pressurized gas, its bottom 2 is arched inwards as shown and there is provided with a perforation 3 which is closed with a plug 4 after being filled with the pressurized gas. This stopper is also a safeguard against overpressure, because it consists of an elastomer that melts at certain heat levels and allows the pressure medium to escape safely. The container is closed on its side opposite the base 2 with a conventional aerosol clinching device. This means that an insert 5 with a seal 6 with its flanged edge 7 encloses and seals the opening of the outer container 1. The insert 5 has in the middle a recess 8 for the housing 9 of a spray valve 10, also of a known design. The hollow valve rod 11 carries the valve disk 12, which is made of an elastomer, the seat of which is indicated at 13 in FIG. 1. The upper tubular housing part 14 serves as a return spring for the valve rod.

Ferner hat der Einsatz 5 einen eingebördelten Rand 15, der zur Befestigung einer Buchse 16 dient. Diese ist mit ihrem oberen Rand im Einsatz 5 befestigt. Der freie Rand des zylindrischen Teiles der Buchse 16 geht in einen trichterförmigen Teil 17 über. Die größere Trichteröffnung 18 setzt an dem freien Rand an, während der verengte Teil des Trichters in einem Hüllrohr 19 endet.Furthermore, the insert 5 has a crimped edge 15, which is used to fasten a bushing 16. This is fixed with its upper edge in the insert 5. The free edge of the cylindrical part of the bushing 16 merges into a funnel-shaped part 17. The larger funnel opening 18 starts at the free edge, while the narrowed part of the funnel ends in a cladding tube 19.

Das Hüllrohr umgreift einen allgemein mit 20 bezeichneten Offenhalter. Dieser liegt koaxial in einem aus flexiblem Werkstoff bestehenden Innenbehälter 21, der seinerseits mit der Aerosol-Clinsch-Vorrichtung am oberen Rand des Außenbehälters 1 befestigt ist. Dieser Innenbehälter ist beispielsweise mit einer Flüssigkeit oder einer Paste gefüllt.The cladding tube surrounds an open holder, generally designated 20. This lies coaxially in an inner container 21 made of flexible material, which in turn is attached to the upper edge of the outer container 1 with the aerosol clinching device. This inner container is filled with a liquid or a paste, for example.

Der Offenhalter 20 besteht in dem dargestellten Ausführungsbeispiel aus einer Kunststoffolie 23 (Figur 3), welche spiralförmig gewickelt ist. Gemäß dem Ausführungsbeispiel handelt es sich um annähernd eine volle und eine halbe Drehung um die Längsachse des Folienabschnittes. Die außen liegende Längskante 25 des Folienabschnittes trägt eine Mehrzahl von Aussparungen 26, welche vor der innen liegenden Kante 24 bei 27 enden..Jede Aussparung hat parallele senkrechte, zur Kante 25 verlaufende Längskanten 28, 29, welche an einer halbkreisförmigen Stirnkante 30 enden.In the exemplary embodiment shown, the open holder 20 consists of a plastic film 23 (FIG. 3) which is wound spirally. According to the exemplary embodiment, there is approximately a full and a half rotation about the longitudinal axis of the film section. The outer longitudinal edge 25 of the film section carries a plurality of recesses 26 which end in front of the inner edge 24 at 27. Each recess has parallel vertical longitudinal edges 28, 29 which run to the edge 25 and end at a semicircular end edge 30.

Die erwähnte Spirale umschließt einen Axialkanal 31, der nach Einbau des Offenhalters 20 vom Boden 32 des Innenbehälters 21 bis unmittelbar unter den Ventilteller 12 reicht. Wie die Darstellung der Fig. 2 zeigt, ist die Anordnung so getroffen, daß bei geöffnetem Ventil der Ventilteller 12 nicht mit der oben liegenden Stirnseite 33 des Offenhalters 20 kollidieren kann. Zwischen Ventilteller 12 und Stirnseite 33 befindet sich vielmehr ein Spalt 34, der genügend groß ist, um den Inhalt des Innenbehälters 21 passieren zu lassen, so daß dieser durch Öffnungen 35 in der Ventilstange eintreten und durch eine Düse 36 ausgebracht werden kann.The spiral mentioned encloses an axial channel 31 which, after installation of the open holder 20, extends from the bottom 32 of the inner container 21 to directly under the valve plate 12 is enough. As shown in FIG. 2, the arrangement is such that when the valve is open, the valve plate 12 cannot collide with the face 33 of the open holder 20 lying at the top. Rather, there is a gap 34 between the valve plate 12 and the end face 33, which gap is large enough to allow the contents of the inner container 21 to pass so that it can enter through openings 35 in the valve rod and can be discharged through a nozzle 36.

Bei dem dargestellten Ausführungsbeispiel wird der Offenhalter 20 mit seinem unteren Ende 37 auf einem Kegel 38 ab-gestützt und radial festgelegt, welcher auf der Innenseite des Bodens 32 ausgebildet ist. Die Mittelstellung wird durch das Hüllrohr 19 gesichert.In the illustrated embodiment, the open holder 20 is supported with its lower end 37 on a cone 38 and fixed radially, which is formed on the inside of the bottom 32. The middle position is secured by the cladding tube 19.

Im Betrieb führt das Abheben des Ventiltellers 12 von seinem Sitz 13 dazu, daß das im Außenbehälter 1 eingeschlossene Druckgas expandiert und dabei den Füllraum des Innenbehälters 21 schrumpfen läßt, indem dieser zusammengedrückt wird. Infolgedessen tritt die im Füllraum 39 des Innenbehälters enthaltene Masse zwischen Hüllrohr 19 und Offenhalter 20 in den Raum ein, der unmittelbar unter dem Ventil vorhanden ist und kann auf diese Weise in die hohle Ventilstange gelangen. Mit zunehmender Entleerung des Innenbehälters 21 schrumpft dessen Wandung immer mehr zusammen, bis sie sich auf den Offenhalter 20 legt. Das ermöglichen die von den Radialkanälen 26 gebildeten öffnungen, durch die das zwischen dem Offenhalter 20 und den Wandungen eingeschlossene Füllgut in den Axialkanal 31 übertreten kann, von wo es in den Schlitz 34 unter dem Ventil gelangt. Da der Offenhalter genügend weit in den Behälter 21 eingeführt ist, erreicht der Axialkanal 31 auch den Raum unmittelbar oberhalb des Bodens 32, so daß auch hier eine nahezu vollständige Entleerung des Füllraumes 39 stattfindet.In operation, the lifting of the valve plate 12 from its seat 13 causes the compressed gas enclosed in the outer container 1 to expand, thereby shrinking the filling space of the inner container 21 by compressing it. As a result, the mass contained in the filling space 39 of the inner container between the cladding tube 19 and the open holder 20 enters the space which is present directly under the valve and can thus reach the hollow valve rod. With increasing emptying of the inner container 21, the wall thereof shrinks more and more until it lies on the open holder 20. This is made possible by the openings formed by the radial channels 26, through which the contents enclosed between the open holder 20 and the walls pass into the axial channel 31 can from where it gets into the slot 34 under the valve. Since the open holder is inserted sufficiently far into the container 21, the axial channel 31 also reaches the space immediately above the bottom 32, so that the filling space 39 is almost completely emptied here as well.

Claims (5)

1. Zweikammer-Druckpackung, deren Außenbehälter mit einem ein Ventil aufnehmenden Einsatz verschlossen ist, an dem ein Innenbehälter befestigt ist, der bei zum Ausbringen seines Inhaltes geöffnetem Ventil mit Hilfe von zwischen Außen- und Innenbehälter eingeschlossenem Druckmedium geschrumpft wird, dadurch gekennzeichnet , daß das Schrumpfvermögen des Innenbehälters (21) mit Hilfe eines konzentrisch angeordneten Offenhalters (20) eingeschränkt ist, der einen unter das Ventil (10) führenden und über mehrere Radialöffnungen (26) mit dem Innenbehälter verbundenen Axialkanal (31) aufweist.1. Two-chamber pressure pack, the outer container is closed with a valve-receiving insert, to which an inner container is attached, which is shrunk when the valve is opened for dispensing its contents with the aid of pressure medium enclosed between the outer and inner container, characterized in that the Shrinking capacity of the inner container (21) is restricted with the aid of a concentrically arranged open holder (20), which has an axial channel (31) leading under the valve (10) and connected to the inner container via a plurality of radial openings (26). 2. Zweikammer-Druckbehälter nach Anspruch 1 , dadurch gekennzeichnet , daß der Offenhalter (21) als rohrförmiger Körper (25-30) ausgebildet ist, dessen ventilseitiges Ende (33) mit einem an dem Einsatz (5) befestigten Hüllrohr (19) umgeben ist.2. Two-chamber pressure vessel according to claim 1, characterized in that the open holder (21) is designed as a tubular body (25-30), the valve-side end (33) is surrounded by an envelope tube (19) attached to the insert (5) . 3. Zweikammer-Druckbehälter nach einem der Ansprüche 1 oder 2 ,
dadurch gekennzeichnet, daß der Offenhalter eine aus einer Folie (25) gewickelte Spirale (24-25) ist, welche an ihren Längsseiten (24, 27) die Radialöffnungen (26) bildende Aussparungen (28-30) aufweist.3. Two-chamber pressure vessel according to one of claims 1 or 2,
characterized in that the open holder is a spiral (24-25) wound from a film (25) which has on its longitudinal sides (24, 27) the recesses (28-30) forming the radial openings (26). 4. Zweikammer-Druckpackung nach einem der Ansprüche 1 bis 3 ,
dadurch gekennzeichnet , daß das Hüllrohr (19) einen Trichter (18) bildet, dessen oberer Rand das freie Ende einer das Ventil umgebenden Buchse (16) bildet und dessen Auslauf (19) als den Offenhalter (20) umschließendes Rohr ausgebildet ist.4. Two-chamber pressure pack according to one of claims 1 to 3,
characterized in that the cladding tube (19) forms a funnel (18), the upper edge of which forms the free end of a bushing (16) surrounding the valve and the outlet (19) is designed as a tube enclosing the open holder (20). 5. Zweikammer-Druckbehälter nach einem der Ansprüche 1 bis 4 ,
dadurch gekennzeichnet , daß der Offenhalter (20) unmittelbar oberhalb des Bodens (32) des Innenbehälters (21) endet.5. Two-chamber pressure vessel according to one of claims 1 to 4,
characterized in that the open holder (20) ends immediately above the bottom (32) of the inner container (21).
EP82103237A 1981-06-05 1982-04-17 Dual-compartment pressurized pack Withdrawn EP0066696A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3122399 1981-06-05
DE19813122399 DE3122399A1 (en) 1981-06-05 1981-06-05 TWO-CHAMBER PRINTING PACK

Publications (1)

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EP0066696A1 true EP0066696A1 (en) 1982-12-15

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ID=6134030

Family Applications (1)

Application Number Title Priority Date Filing Date
EP82103237A Withdrawn EP0066696A1 (en) 1981-06-05 1982-04-17 Dual-compartment pressurized pack

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EP (1) EP0066696A1 (en)
DE (1) DE3122399A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5433345A (en) * 1992-10-28 1995-07-18 Dai Nippon Printing Co., Ltd. Bag-in-carton and pouring spout thereof
US5921438A (en) * 1992-05-11 1999-07-13 Yoshino Kogyosho Co., Ltd. Laminated bottle and pump device therefor

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3240399A (en) * 1963-08-14 1966-03-15 Ned W Frandeen Dispensing receptacle
FR2233843A5 (en) * 1973-06-15 1975-01-10 Air Liquide Aerosol container with inner flexible envelope - uses two propulsive fluids, one soluble, the other insoluble in product
CH617873A5 (en) * 1976-08-20 1980-06-30 Metal Box Co Ltd

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3240399A (en) * 1963-08-14 1966-03-15 Ned W Frandeen Dispensing receptacle
FR2233843A5 (en) * 1973-06-15 1975-01-10 Air Liquide Aerosol container with inner flexible envelope - uses two propulsive fluids, one soluble, the other insoluble in product
CH617873A5 (en) * 1976-08-20 1980-06-30 Metal Box Co Ltd

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5921438A (en) * 1992-05-11 1999-07-13 Yoshino Kogyosho Co., Ltd. Laminated bottle and pump device therefor
US5433345A (en) * 1992-10-28 1995-07-18 Dai Nippon Printing Co., Ltd. Bag-in-carton and pouring spout thereof
US5551600A (en) * 1992-10-28 1996-09-03 Dai Nippon Printing Co., Ltd. Bag-in-carton and pouring spout thereof
US5769273A (en) * 1992-10-28 1998-06-23 Dai Nippon Printing Co., Ltd. Pouring spout

Also Published As

Publication number Publication date
DE3122399A1 (en) 1983-07-21

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