EP0052161B1 - Device for dispensing gaseous, liquid or powdered substances - Google Patents

Device for dispensing gaseous, liquid or powdered substances Download PDF

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Publication number
EP0052161B1
EP0052161B1 EP80107166A EP80107166A EP0052161B1 EP 0052161 B1 EP0052161 B1 EP 0052161B1 EP 80107166 A EP80107166 A EP 80107166A EP 80107166 A EP80107166 A EP 80107166A EP 0052161 B1 EP0052161 B1 EP 0052161B1
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EP
European Patent Office
Prior art keywords
pressure vessel
container
substance
dispensed
piston
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EP80107166A
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German (de)
French (fr)
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EP0052161A1 (en
Inventor
Miklos Szabo
Vilmos Weiperth
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Individual
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Individual
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Priority to AT80107166T priority Critical patent/ATE12075T1/en
Priority to DE8080107166T priority patent/DE3070288D1/en
Priority to EP80107166A priority patent/EP0052161B1/en
Publication of EP0052161A1 publication Critical patent/EP0052161A1/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
    • 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
    • B65D2583/00—Containers or packages with special means for dispensing contents
    • B65D2583/005—Dispensers provided with a replaceable cartridge, recharge or pouch located within the dispenser

Definitions

  • the invention relates to a device for dispensing gaseous, liquid or powdery substances according to the introductory part of claim 1.
  • the liquid substances also include those soft, cream-like and foamy or foamable substances of corresponding viscosity, which are by means of the proposed device can be spent.
  • a wide variety of methods and devices are known for spraying and dispensing various substances, the working principle of which generally resembles either the siphon bottles or the spray cans.
  • the common characteristic of the known solutions consists in the presence of a pressure vessel which is suitable for holding the substance to be dispensed, an overpressure being generated in the pressure vessel by means of a corresponding propellant, namely a propellant gas.
  • the excess pressure serves to squeeze the substance out of the pressure vessel and the substance leaves its interior under the influence of the excess pressure via a valve or via another suitable opening.
  • the siphon bottles are fed with the propellant gas from outside the pressure vessel.
  • the pressure vessel can be refilled several times with the substance to be dispensed and used several times with the help of new propellant gas to spray out the substance.
  • This solution is particularly advantageous in the event that a relatively large amount of the substance is to be prepared for spraying and / or that a chemical reaction of the substance to be sprayed out with the propellant gas is to take place in the bottle forming the pressure vessel.
  • the characteristic feature of the spray cans is that the spray material is filled under an overpressure: the pressure vessel is filled with both the substance to be sprayed and the propellant gas at the same time. Since refilling spray cans is very difficult, the spray cans can generally only be used once and should be discarded after use.
  • Fluorocarbons are used as propellants in spray cans.
  • the fluorocarbons are chemically inert and, as inert gases, they would be very advantageous as propellants.
  • the fluorocarbons are very dangerous for the atmospheric ozone layer and therefore for the whole world and for civilization.
  • the presumably negative impact of fluorocarbons appears to be so dangerous that their use has been banned in several countries. This trend is expected to intensify all over the world.
  • the spray cans are relatively expensive: the packaging represents a disproportionately high value compared to that of the substance to be dispensed because the uniqueness of the application - if the safety requirements are met - significantly increases the size of the Manufacturing costs leads.
  • Another problem is to destroy a large amount of the emptied bottles. Destruction can be very difficult, especially if the spray cans have been filled with an explosive or highly flammable propellant, since the remaining unavoidable propellants in the cans can lead to accidents if the cans are not opened carefully enough.
  • a device designed as a spray can is already known with the features from the introductory part of claim 1 (DE-A-2 004 856), which is characterized in that the propellant is in one of the subspaces which is used to hold the substance to be dispensed , is housed by means of the piston separate other sub-space, regardless of the compatibility of the blowing agent with the substance to be dispensed in connection with cheap, non-polluting or non-polluting blowing agents can be used.
  • the invention solves the problem of making the pressure vessel reusable in a device of the type mentioned at the outset and, in addition to the propellant (the propellant gas), also arranging the substance to be dispensed in independent, cheap and disposable packaging after use and in the pressure vessel to use the excess pressure of the blowing agent to open the fabric container inside the pressure container.
  • the propellant the propellant gas
  • the discharge opening of the pressure container can be equipped with an atomizer.
  • the fabric container can be provided with an elastic jacket that presses against the inner wall of the pressure container under the influence of excess pressure.
  • a blowing agent z. B. compressed air or another appropriately cheap gas can be used.
  • the selection of the blowing agent is facilitated by the fact that it does not come into contact with the substance to be dispensed. Under certain conditions, it can also be advantageous if a chemical two-component system that becomes effective under pressure development is used as the blowing agent.
  • the pressure vessel should not be thrown away or destroyed after the emptying of the fabric container, because the device can be put back into operation and used very easily after removing the emptied fabric container and the used propellant container and after inserting the new container.
  • the containers can be made from cheap materials with an aesthetic, pleasing exterior design, the application of the invention creates the simple and inexpensive possibility of realizing a new family of interchangeable elements (containers) of commercial products.
  • the containers pose only the same environmental problems as the other well known plastic packaging.
  • the device which is shown in the drawing has a pressure container 5 which is provided on the one hand with an outlet opening and on the other hand is closed with a closure cap 13.
  • the dispensing opening is formed in the device shown by means of a puncture tube 4, a valve 3 and an atomizer 2 supported on a spring 1.
  • the elements 1 to 4 shown together form a valve device.
  • the cap 13 is tightly connected to the pressure vessel by means of a sealing washer 7.
  • a screw closure as shown in the drawing, or a bayonet closure, not shown in the drawing, or another suitable closure unit can be used.
  • a vent valve 14 communicating with the interior of the pressure vessel 5 and a lancing unit consisting of a needle 6 and a pressure actuating plunger 8 are arranged in the manner shown.
  • a substance container 9 containing the substance 10 to be dispensed is arranged in the partial space of the pressure container 5 adjacent to the discharge opening.
  • the fabric container 9 is designed such that it has a wall that withstands the excess pressure on its front side facing the closure cap 13, and has an easily pierceable or tearable wall on its front side facing the valve 3 or the discharge opening.
  • the fabric container 9 can be provided in the manner shown in the drawing with a rigid wall 15 and / or with an elastic sliding jacket 16. Both the rigid wall 15 and at least the annular lip formed on the free edge of the sliding jacket 16 are adapted to the diameter of the inner wall of the pressure vessel 5 in such a way that they are airtight under pressure but slidably bear against the inner wall.
  • the sliding jacket 16 also forms a holder for the propellant container 11.
  • the propellant container 11 containing a fuel 12, for example compressed air, is inserted.
  • the propellant container 11 has on its end facing the closure cap 13 a wall which can be pierced by means of the needle tube 6.
  • the needle 6 is inserted into the wall of the propellant container 11 by means of the pressure actuating plunger 8.
  • the rigid wall 15 or the sliding jacket 16 are placed close to the inner wall of the pressure vessel 5, so that the propellant cannot escape to the dispensing opening. Under the influence of the excess pressure, the fabric container 9 begins to move towards the dispensing opening.
  • the neighboring end wall of the fabric container 9 is pierced by means of the piercing tube 4, so that the interior of the fabric container 9 is thereby connected to the dispensing opening.
  • the overpressure causes the substance 10 to be dispensed to flow out of the substance container 9 through the dispensing opening and possibly the atomizer 1.
  • the wall element separating the interior of the pressure container 5 into two subspaces slowly moves in the direction of the emptying of the substance container 9 moved the dispensing opening. After the substance has been sprayed out, the excess pressure can be compensated by corresponding actuation of the vent valve 14 in order to release the remaining propellant 12.
  • the empty containers 9, 11 can be removed from the pressure container 5 and exchanged for new containers.
  • the two composite containers 9, 11 act as a piston, with which the pressure vessel 5 cooperates as a cylinder.
  • the fabric container 9 may be deformable in such a way that that it is increasingly compressed on the end wall of the pressure vessel 5 having the valve 3 with increasing release of the substance 10 and its volume is thereby reduced.
  • a pressure vessel which has an outlet opening in the form of a valve and a lower closure cap and a lancing unit arranged in the closure cap.
  • the propellant and the substance to be dispensed should be arranged in appropriate containers in the pressure container such that the substance container is closer to the valve and the propellant container at least partially fills the remaining part of the pressure container.
  • the substance container or the fuel container should be designed on their contact surface in such a way that the airtight separation of the two subspaces is ensured on this surface.
  • the pressure vessel is sealed airtight using the cap.
  • the propellant container is opened with the aid of the lancing unit, so that the excess pressure is released.
  • the excess pressure causes the fabric container to move in the direction of the valve.
  • the valve can e.g. B. be provided with an inlet tube which can be pushed through the wall of the fabric container and can be immersed in the fabric container. The substance to be dispensed is sprayed out through the opening of the valve under the influence of the excess pressure.
  • the pressure container can also be provided without the valve, but only with an open dispensing opening, so that the substance is dispensed through the opening immediately after the propellant container is pierced.
  • Another possibility is to assemble the pressure container from two container parts and, on the one hand, to achieve the airtight closure of the pressure container and, on the other hand, to puncture the propellant container by assembling the container parts.
  • the common contact surface of the containers can be formed by a movable partition wall of the containers and the dispensing opening can be covered with an easily tearable layer.
  • the device assembled in this way can be used once: the dispensing opening is opened under the influence of excess pressure and the material can be sprayed out in a continuous flow in the desired direction.
  • the invention enables the construction of effective devices with simple, cheap, easily manufactured components.
  • the containers can be thrown away after use.
  • the blowing agent used is selected from cheap, non-polluting substances, in particular from appropriate gases. Therefore, the device does not pose a risk of explosion and fire if it is subsequently opened violently. Material containers with different materials can be used.
  • prefabricated substance and propellant containers can be used in different aesthetic designs and simple measures can be taken to be able to reliably check the content at any time (the content of the spray cans cannot be checked).
  • the fabric container can also contain the propellant container as an attached component.
  • the design of the fabric container and the propellant container as a structural unit leads to further simplifications in the distribution, transport and use of the device.
  • the device according to the invention can be manufactured 50 to 80% cheaper.
  • the disposable packaging of the fabric container and the propellant container mean a relatively low risk of pollution for the environment in comparison with the spray cans; in addition, the blowing agent can be selected from gases that are biologically and ecologically reliable and safe.

Abstract

1. Device for dispensing gaseous liquid or powdered substances, comprising a hermetically sealable pressure vessel (5) at one end of which a dispensing aperture is located which is preferably controlled by a valve (3) and the other end of which is closed by a closure cap (13), a piston (15, 16) displaceable in the pressure vessel (5) and dividing the latter into two space portions of which the first space portion, which is connected to the dispensing aperture, serves for accommodating the material to be dispensed, and the second space portion accommodates a pressurised propellant container (11) seated on a support mounting fitted to the piston (15, 16) and pierceable by a piercing unit (6, 8) attached to the closure cap (13), characterised in that the pressure vessel (5) is releasably sealable and that the piston (15, 16) forms the bottom of a deformable receptacle (9) holding the substance (10) to be dispensed and arranged in the first space portion ; the receptacle being pierceable through by a piercing tube (4) opening into the dispensing aperture.

Description

Die Erfindung betrifft eine Vorrichtung zum Ausgeben von gasförmigen, flüssigen oder pulverförmigen Stoffen gemäß dem einleitenden Teil des Anspruchs 1. In der nachfolgenden Beschreibung zählen zu den flüssigen Stoffen auch solche weichen, cremeförmigen und schaumigen oder aufschäumbaren Stoffe von entsprechender Viskosität, die mittels der vorgeschlagenen Vorrichtung ausgegeben werden können.The invention relates to a device for dispensing gaseous, liquid or powdery substances according to the introductory part of claim 1. In the following description, the liquid substances also include those soft, cream-like and foamy or foamable substances of corresponding viscosity, which are by means of the proposed device can be spent.

Zum Aussprühen und Ausgeben von verschiedenen Stoffen sind vielfältige Verfahren und Vorrichtungen bekannt, die von ihrem Arbeitsprinzip her allgemein entweder den Siphonflaschen oder den Sprühdosen ähneln. Das gemeinsame Kennzeichen der bekannten Lösungen besteht im Vorhandensein eines Druckgefäßes, das sich zur Aufnahme des auszugebenden Stoffes eignet, wobei im Druckgefäß ein Überdruck mittels eines entsprechenden Treibmittels, nämlich eines Treibgases, erzeugt wird. Der Überdruck dient zum Auspressen des Stoffes aus dem Druckgefäß und der Stoff verläßt dessen Innenraum unter Einwirkung des Überdruckes über ein Ventil oder über eine andere geeignete Öffnung.A wide variety of methods and devices are known for spraying and dispensing various substances, the working principle of which generally resembles either the siphon bottles or the spray cans. The common characteristic of the known solutions consists in the presence of a pressure vessel which is suitable for holding the substance to be dispensed, an overpressure being generated in the pressure vessel by means of a corresponding propellant, namely a propellant gas. The excess pressure serves to squeeze the substance out of the pressure vessel and the substance leaves its interior under the influence of the excess pressure via a valve or via another suitable opening.

Die Siphonflaschen werden mit dem Treibgas von außerhalb des Druckgefäßes her gespeist. Das Druckgesfäß kann mit dem auszugebenden Stoff mehrfach neu gefüllt und mit Hilfe neuen Treibgases zum Ausspritzen des Stoffes mehrfach angewendet werden. Diese Lösung eignet sich besonders vorteilhaft für den Fall, daß eine relativ große Menge des Stoffes für das Ausspritzen vorzubereiten ist und/oder daß in der das Druckgefäß bildenden Flasche eine chemische Reaktion des auszuspritzenden Stoffes mit dem Treibgas stattfinden soll.The siphon bottles are fed with the propellant gas from outside the pressure vessel. The pressure vessel can be refilled several times with the substance to be dispensed and used several times with the help of new propellant gas to spray out the substance. This solution is particularly advantageous in the event that a relatively large amount of the substance is to be prepared for spraying and / or that a chemical reaction of the substance to be sprayed out with the propellant gas is to take place in the bottle forming the pressure vessel.

Das charakteristische Merkmal der Sprühdosen besteht darin, daß das Sprühgut unter einem Überdruck eingefüllt wird : das Druckgefäß wird sowohl mit dem zu versprühenden Stoff als auch mit dem Treibgas gleichzeitig gefüllt. Da das Neufüllen von Sprühdosen sehr schwierig ist, können die Sprühdosen allgemein nur einmal verwendet werden und sind nach der Benutzung wegzuwerfen.The characteristic feature of the spray cans is that the spray material is filled under an overpressure: the pressure vessel is filled with both the substance to be sprayed and the propellant gas at the same time. Since refilling spray cans is very difficult, the spray cans can generally only be used once and should be discarded after use.

In Sprühdosen werden Fluorkohlenwasserstoffe als Treibgas angewendet. Die Fluorkohlenwasserstoffe sind chemisch reaktionsträge und als inerte Gase würden sie als Treibgas sehr vorteilhaft sein. Nach den Ergebnissen von wissenschaftlichen Forschungen sind die Fluorkohlenwasserstoffe jedoch für die atmosphärische Ozonschicht und dadurch für die ganze Lebenswelt und die Menschheit sehr gefährlich. Obgleich diese Ergebnisse weiterhin den Gegenstand tiefgehender Forschungen bilden, scheint die vermutlich negative Einwirkung der Fluorkohlenwasserstoffe derart gefährlich zu sein, daß ihre Anwendung in mehreren Ländern bereits verboten wurde. Die Verstärkung dieser Tendenz ist in aller Welt zu erwarten.Fluorocarbons are used as propellants in spray cans. The fluorocarbons are chemically inert and, as inert gases, they would be very advantageous as propellants. However, according to the results of scientific research, the fluorocarbons are very dangerous for the atmospheric ozone layer and therefore for the whole world and for humanity. Although these results continue to be the subject of in-depth research, the presumably negative impact of fluorocarbons appears to be so dangerous that their use has been banned in several countries. This trend is expected to intensify all over the world.

Möglichkeiten für das Ersetzen der Fluorkohlenwasserstoffe bilden den Gegenstand vielseitiger anderer Versuche, die jedoch zur Zeit keinen Erfolg zeigen können, da kein Stoff bekannt ist, der zu den Fluorkohlenwasserstoffen vergleichbar inert, billig, und in der Anwendung gleich günstig ist. Die anderen erprobten Treibgase sind entweder relativ aufwendig oder sie reagieren mit dem auszugebenden Stoff. Weder die Erhöhung der Herstellungskosten noch die chemischen Reaktionnen sind gewöhnlich erwünscht.Possibilities for replacing the fluorohydrocarbons are the subject of a variety of other experiments, which, however, are currently unsuccessful, since no substance is known which is inert, cheap, and inexpensive to use compared to the fluorohydrocarbons. The other tested propellants are either relatively expensive or they react with the substance to be dispensed. Neither the increase in manufacturing costs nor the chemical reactions are usually desirable.

Unabhängig von den mit den Forderungen hinsichtlich des Umweltschutzes begründeten Nachteilen der Fluorkohlenwasserstoffe sind die Sprühdosen relativ kostspielig : die Verpackung stellt einen unverhältnismäßig hohen Wert im Vergleich mit dem des auszugebenden Stoffes dar, weil die Einmaligkeit der Anwendung - bei Erfüllung der Sicherheitsanforderungen - zur bedeutenden Vergrößerung der Herstellungskosten führt. Ein anderes Problem besteht darin, eine große Menge der ausgeleerten Flaschen zu vernichten. Die Vernichtung kann große Schwierigkeiten hervorrufen, besonders dann, wenn die Sprühdosen mit einem explosiven oder leicht brennbaren Treibmittel gefüllt worden sind, da die in den Dosen unvermeidbar verbleibenden Reste des Treibmittels bei nicht hinreichend vorsichtigem Öffnen der Dosen zu Unfällen führen können.Irrespective of the disadvantages of fluorocarbons due to environmental protection requirements, the spray cans are relatively expensive: the packaging represents a disproportionately high value compared to that of the substance to be dispensed because the uniqueness of the application - if the safety requirements are met - significantly increases the size of the Manufacturing costs leads. Another problem is to destroy a large amount of the emptied bottles. Destruction can be very difficult, especially if the spray cans have been filled with an explosive or highly flammable propellant, since the remaining unavoidable propellants in the cans can lead to accidents if the cans are not opened carefully enough.

Die zum Neufüllen der Sprühdosen ausgearbeiteten Verfahren benötigen Vorrichtungen von kompliziertem Aufbau, die nicht immer den hygienischen Anforderungen bei dem Neufüllen genügen und außerdem nicht die Verhinderung der Umweltverschmutzung gewährleisten können. Ein weiterer Nachteil des Neufüllens besteht darin, daß die neugefüllten Sprühdosen neuerlich verschlossen werden müssen, denn das zuverlässige erneute Verschließen der Dosen erfordert die Anwendung von relativ kostspieligen Vorrichtungen und technologischen Mitteln.The methods developed for refilling the spray cans require devices of complicated construction which do not always meet the hygienic requirements for refilling and which, moreover, cannot ensure the prevention of pollution. Another disadvantage of refilling is that the refilled spray cans have to be sealed again because the reliable resealing of the cans requires the use of relatively expensive devices and technological means.

Es ist jedoch auch bereits eine als Sprühdose ausgebildete Vorrichtung mit den Merkmalen aus dem einleitenden Teil des Anspruchs 1 bekannt (DE-A-2 004 856), die dadurch, daß das Treibmittel in einem von dem Teilraum, der zur Aufnahme des auszugebenden Stoffes dient, mittels des Kolbens getrennten anderen Teilraum untergebracht ist, ohne Rücksicht auf die Verträglichkeit des Treibmittels mit dem auszugebenden Stoff in Verbindung mit billigen, die Umwelt nicht verschmutzenden oder nicht belastenden Treibmitteln angewendet werden kann.However, a device designed as a spray can is already known with the features from the introductory part of claim 1 (DE-A-2 004 856), which is characterized in that the propellant is in one of the subspaces which is used to hold the substance to be dispensed , is housed by means of the piston separate other sub-space, regardless of the compatibility of the blowing agent with the substance to be dispensed in connection with cheap, non-polluting or non-polluting blowing agents can be used.

Durch die Erfindung wird die Aufgabe gelöst, bei einer Vorrichtung eingangs erwähnter Art den Druckbehälter wiederverwendbar zu gestalten und in dem Druckbehälter außer dem Treibmittel (dem Treibgas) auch den auszugebenden Stoff in selbstständigen, billigen und nach der Benutzung wegwerfbaren Verpackungen anzuordnen und den Überdruck des Treibmittels auch zum Öffnen des Stoffbehälters innerhalb des Druckbehälters auszunutzen.The invention solves the problem of making the pressure vessel reusable in a device of the type mentioned at the outset and, in addition to the propellant (the propellant gas), also arranging the substance to be dispensed in independent, cheap and disposable packaging after use and in the pressure vessel to use the excess pressure of the blowing agent to open the fabric container inside the pressure container.

Dies wird gemäß der Erfindung durch die Merkmale im kennzeichnenden Teil des Anspruchs 1 erreicht. Weiterbildungen der Erfindung sind in den Ansprüchen 2 und 3 angegeben.This is achieved according to the invention by the features in the characterizing part of claim 1. Developments of the invention are specified in claims 2 and 3.

Die Ausgabeöffnung des Druckbehälters kann mit einem Zerstäuber ausgestattet sein. Der Stoffbehälter kann mit einem unter Einwirkung eines Überdruckes sich an die innenwand des Druckbehälters andrückenden elastischen Mantel versehen sein. Als Treibmittel kann z. B. Preßluft oder ein anderes entsprechend billiges Gas angewendet werden. Die Auswahl des Treibmittels ist dadurch erleichtert, daß dieses nicht in Kontakt mit dem auszugebenden Stoff gelangt. Unter bestimmten Bedingungen kann es auch vorteilhaft sein, wenn als Treibmittel ein unter Druckentwicklung wirksam werdendes chemisches Zweikomponentensystem angewendet wird. Der Druckbehälter soll nach der Entleerung des Stoffbehälters nicht weggeworfen oder vernichtet werden, weil die Vorrichtung nach dem Herausnehmen des entleerten Stoffbehälters und des benutzten Treibmittelbehälters und nach dem Einlegen der neuen Behälter sehr einfach wieder in Betrieb gesetzt und verwendet werden kann. Da die Behälter aus billigen Stoffen mit ästhetischer, wohlgefälliger Außengestaltung herstellbar sind, entsteht durch die Anwendung der Erfindung die einfache und billige Möglichkeit, eine neue Familie austauschbare Elemente (Behälter) enthaltender Handelsprodukte zu verwirklichen. Die Behälter bilden nur dieselbe Umweltschutzprobleme wie die anderen wohlbekannten Kunststoff-Verpackungen.The discharge opening of the pressure container can be equipped with an atomizer. The fabric container can be provided with an elastic jacket that presses against the inner wall of the pressure container under the influence of excess pressure. As a blowing agent z. B. compressed air or another appropriately cheap gas can be used. The selection of the blowing agent is facilitated by the fact that it does not come into contact with the substance to be dispensed. Under certain conditions, it can also be advantageous if a chemical two-component system that becomes effective under pressure development is used as the blowing agent. The pressure vessel should not be thrown away or destroyed after the emptying of the fabric container, because the device can be put back into operation and used very easily after removing the emptied fabric container and the used propellant container and after inserting the new container. Since the containers can be made from cheap materials with an aesthetic, pleasing exterior design, the application of the invention creates the simple and inexpensive possibility of realizing a new family of interchangeable elements (containers) of commercial products. The containers pose only the same environmental problems as the other well known plastic packaging.

Die Erfindung wird anhand der Zeichnung und mit Hilfe von Ausführungsbeispielen näher erläutert. In der Zeichnung zeigt die einzige Figur eine vorteilhafte Ausführungsform der erfindungsgemäßen Vorrichtung im Längsschnitt.The invention is explained in more detail with reference to the drawing and with the aid of exemplary embodiments. In the drawing, the single figure shows an advantageous embodiment of the device according to the invention in longitudinal section.

Die Vorrichtung, die in der Zeichnung dargestellt ist, weist einen Druckbehälter 5 auf, der einerseits mit einer Ausgabeöffnung versehen ist, andererseits mit einer Verschlußkappe 13 verschlossen ist. Die Ausgabeöffnung ist in der dargestellten Vorrichtung mittels eines Stechrohres 4, eines Ventils 3 und eines an einer Feder 1 abgestützten Zerstäubers 2 ausgebildet. Die dargestellten Elemente 1 bis 4 bilden gemeinsam eine Ventilvorrichtung. Die Verschlußkappe 13 ist mittels einer Dichtungsscheibe 7 dicht mit dem Druckbehälter verbunden. Hierzu kann - ein Schraubverschluß, wie in der Zeichnung dargestellt, oder ein in der Zeichnung nicht dargestellter Bajonettverschluß oder eine andere geeignete Verschlußeinheit verwendet werden. In der Verschlußkappe 13 ist in der dargestellten Weise ein mit dem Innenraum des Druckbehälters 5 kommunizierendes Entlüftungsventil 14 sowie eine aus einer Nadel 6 und aus einem Druckbetätigungsstößel 8 bestehende Stecheinheit angeordnet.The device which is shown in the drawing has a pressure container 5 which is provided on the one hand with an outlet opening and on the other hand is closed with a closure cap 13. The dispensing opening is formed in the device shown by means of a puncture tube 4, a valve 3 and an atomizer 2 supported on a spring 1. The elements 1 to 4 shown together form a valve device. The cap 13 is tightly connected to the pressure vessel by means of a sealing washer 7. For this purpose - a screw closure, as shown in the drawing, or a bayonet closure, not shown in the drawing, or another suitable closure unit can be used. In the cap 13, a vent valve 14 communicating with the interior of the pressure vessel 5 and a lancing unit consisting of a needle 6 and a pressure actuating plunger 8 are arranged in the manner shown.

In dem an die Ausgabeöffnung angrenzenden Teilraum des Druckbehälters 5 wird ein den auszugebenden Stoff 10 enthaltender Stoffbehälter 9 angeordnet. Der Stoffbehälter 9 ist bei der dargestellten Ausführungsform derart ausgebildet, daß er an seiner der Verschlußkappe 13 zugewendeten Stirnseite eine dem Überdruck widerstehende Wand, und auf seiner dem Ventil 3 bzw. der Ausgabeöffnung zugewendeten Stirnseite eine leicht durchstoßbare oder aufreißbare Wand aufweist. An der der Verschlußkappe 13 zugewendeten Stirnseite kann der Stoffbehälter 9 in der aus der Zeichnung ersichtlichen Weise mit einer steifen Wand 15 und/oder mit einem elastischen Gleitmantel 16 versehen sein. Sowohl die steife Wand 15 als auch wenigstens die am freien Rand des Gleitmantels 16 ausgebildete Ringlippe sind an den Durchmesser der Innenwand des Druckgefäßes 5 derart angepaßt, daß sie unter Druck luftdicht, jedoch gleitend verschiebbar an der Innenwand anliegen. Der Gleitmantel 16 bildet gleichzeitig eine Halterung für den Treibmittelbehälter 11. Nach dem Einsetzen des Stoffbehälters 9 in den Druckbehälter 5 wird der einen Treibstoff 12, beispielsweise Druckluft, enthaltende Treibmittelbehälter 11 eingesetzt. Der Treibmittelbehälter 11 weist an seiner der Verschlußkappe 13 zugewendeten Stirnseite eine mittels des Nadelrohrs 6 durchstechbare Wand auf. Nach dem Verschließen des Druckbehälters 5 wird mittels des Druckbetätigungsstößels 8 die Nadel 6 in die Wand des Treibmittelbehälters 11 eingestochen. Unter dem Druck des ausströmenden Treibmittels 12 werden die steife Wand 15 oder der Gleitmantel 16 dicht an die Innenwand des Druckgefäßes 5 angelegt, so daß das Treibmittel nicht zur Ausgabeöffnung hin entweichen kann. Unter der Einwirkung des Überdruckes beginnt der Stoffbehälter 9 sich in Richtung auf die Ausgabeöffnung zuzubewegen. Während dieser Verschiebebewegung wird mittels des Stechrohres 4 die benachbarte Stirnwand des Stoffbehälters 9 aufgestochen, so daß dadurch der Innenraum des Stoffbehälters 9 mit der Ausgabeöffnung verbunden wird. Nach dem Öffnen der Ausgabeöffnung bewirkt der Überdruck das Ausströmen des auszugebenden Stoffes 10 aus dem Stoffbehälter 9 durch die Ausgabeöffnung und ggf. den Zerstäuber 1. Das den Innenraum des Druckbehälters 5 in zwei Teilräume trennende Wandelement wird bei der Entleerung des Stoffbehälters 9 langsam in Richtung auf die Ausgabeöffnung zubewegt. Nach dem Ausspritzen des Stoffes kann der Überdruck durch entsprechende Betätigung des Entlüftungsventils 14 zur Abgabe des verbleibenden Treibmittels 12 ausgeglichen werden. Nach dem Öffnen der Verschlußkappe 13 können die leeren Behälter 9, 11 aus dem Druckbehälter 5 herausgenommen und gegen neue Behälter ausgetauscht werden.A substance container 9 containing the substance 10 to be dispensed is arranged in the partial space of the pressure container 5 adjacent to the discharge opening. In the embodiment shown, the fabric container 9 is designed such that it has a wall that withstands the excess pressure on its front side facing the closure cap 13, and has an easily pierceable or tearable wall on its front side facing the valve 3 or the discharge opening. On the front side facing the closure cap 13, the fabric container 9 can be provided in the manner shown in the drawing with a rigid wall 15 and / or with an elastic sliding jacket 16. Both the rigid wall 15 and at least the annular lip formed on the free edge of the sliding jacket 16 are adapted to the diameter of the inner wall of the pressure vessel 5 in such a way that they are airtight under pressure but slidably bear against the inner wall. The sliding jacket 16 also forms a holder for the propellant container 11. After the substance container 9 has been inserted into the pressure container 5, the propellant container 11 containing a fuel 12, for example compressed air, is inserted. The propellant container 11 has on its end facing the closure cap 13 a wall which can be pierced by means of the needle tube 6. After the pressure container 5 has been closed, the needle 6 is inserted into the wall of the propellant container 11 by means of the pressure actuating plunger 8. Under the pressure of the outflowing propellant 12, the rigid wall 15 or the sliding jacket 16 are placed close to the inner wall of the pressure vessel 5, so that the propellant cannot escape to the dispensing opening. Under the influence of the excess pressure, the fabric container 9 begins to move towards the dispensing opening. During this displacement movement, the neighboring end wall of the fabric container 9 is pierced by means of the piercing tube 4, so that the interior of the fabric container 9 is thereby connected to the dispensing opening. After opening the dispensing opening, the overpressure causes the substance 10 to be dispensed to flow out of the substance container 9 through the dispensing opening and possibly the atomizer 1. The wall element separating the interior of the pressure container 5 into two subspaces slowly moves in the direction of the emptying of the substance container 9 moved the dispensing opening. After the substance has been sprayed out, the excess pressure can be compensated by corresponding actuation of the vent valve 14 in order to release the remaining propellant 12. After opening the closure cap 13, the empty containers 9, 11 can be removed from the pressure container 5 and exchanged for new containers.

Es ist ersichtlich, daß bei der dargestellten Ausführungsform die beiden zusammengesetzten Behälter 9, 11 insgesamt als Kolben wirken, mit welchem das Druckgefäß 5 als Zylinder zusammenwirkt. Der Stoffbehälter 9 ist ggf. mit Ausnahme der steifen Wand 15 derart verformbar, daß er an der das Ventil 3 aufweisenden Stirnwand des Druckgefäßes 5 mit zunehmender Abgabe des Stoffes 10 zunehmend zusammengedrückt wird und dadurch sein Volumen verkleinert wird.It can be seen that in the embodiment shown, the two composite containers 9, 11 act as a piston, with which the pressure vessel 5 cooperates as a cylinder. With the exception of the rigid wall 15, the fabric container 9 may be deformable in such a way that that it is increasingly compressed on the end wall of the pressure vessel 5 having the valve 3 with increasing release of the substance 10 and its volume is thereby reduced.

Die erfindungsgemäße Vorrichtung kann auf unterschiedliche Weise verwirklicht werden. Grundsätzlich wird ein Druckbehälter vorgeschlagen, welcher eine Ausgabeöffnung in Form eines Ventils und eine untere Verschlußkappe sowie eine in der Verschlußkappe angeordnete Stecheinheit aufweist. Nach dem Abnehmen der Verschlußkappe sollen das Treibmittel und der auszugebende Stoff in entsprechenden Behältern derart im Druckbehälter angeordnet werden, daß der Stoffbehälter näher an dem Ventil liegt und der Treibmittelbehälter den verbleibenden Teilraum des Druckbehälters mindestens teilweise ausfüllt. Der Stoffbehälter oder der Treibstoffbehälter sollen an ihrer Berührungsoberfläche derart ausgebildet sein, daß an dieser Oberfläche die luftdichte Trennung der beiden Teilräume gewährleistet ist. Der Druckbehälter wird mit Hilfe der Verschlußkappe luftdicht verschlossen. Danach wird der Treibmittelbehälter mit Hilfe der Stecheinheit geöffnet, so daß dadurch der Überdruck freigesetzt wird. Der Überdruck bewirkt die Verschiebung des Stoffbehälters in die Richtung auf das Ventil zu.The device according to the invention can be implemented in different ways. Basically, a pressure vessel is proposed which has an outlet opening in the form of a valve and a lower closure cap and a lancing unit arranged in the closure cap. After removing the closure cap, the propellant and the substance to be dispensed should be arranged in appropriate containers in the pressure container such that the substance container is closer to the valve and the propellant container at least partially fills the remaining part of the pressure container. The substance container or the fuel container should be designed on their contact surface in such a way that the airtight separation of the two subspaces is ensured on this surface. The pressure vessel is sealed airtight using the cap. Then the propellant container is opened with the aid of the lancing unit, so that the excess pressure is released. The excess pressure causes the fabric container to move in the direction of the valve.

Das Ventil kann z. B. mit einem Eintrittsrohr versehen sein, das durch die Wand des Stoffbehälters hindurchgestoßen werden und in den Stoffbehälter eingetaucht werden kann. Unter der Einwirkung des Überdruckes wird der auszugebende Stoff durch die Öffnung des Ventils ausgespritzt.The valve can e.g. B. be provided with an inlet tube which can be pushed through the wall of the fabric container and can be immersed in the fabric container. The substance to be dispensed is sprayed out through the opening of the valve under the influence of the excess pressure.

Eine andere bequeme Lösung besteht darin, daß in dem in obiger Weise verschlossenen Druckbehälter nach dem Auchstechen des Treibmittelbehälters und ggf. nach dem Öffnen des Ventils eine Nadel oder ein anderes scharfes Element das Aufreißen des Stoffbehälters bewirkt. Bei dieser Ausführungsform kann der Druckbehälter auch ohne das Ventil, sondern nur mit einer geöffneten Ausgabeöffnung versehen werden, so daß der Stoff unmittelbar nach dem Aufstechen des Treibmittelbehälters durch die Öffnung ausgegeben wird.Another convenient solution is that in the pressure container closed in the above manner, after the propellant container is also punctured and possibly after the valve has been opened, a needle or other sharp element causes the fabric container to be torn open. In this embodiment, the pressure container can also be provided without the valve, but only with an open dispensing opening, so that the substance is dispensed through the opening immediately after the propellant container is pierced.

Eine andere Möglichkeit besteht darin, den Druckbehälter aus zwei Behälterteilen zusammenzusetzen und durch das Zusammensetzen der Behälterteile einerseits das luftdichte Verschließen des Druckbehälters, und andererseits das Aufstechen des Treibmittelbehälters zu erreichen. Hierbei kann die gemeinsame Berührungsfläche der Behälter durch eine bewegliche Trennwand der Behälter ausgebildet sein und die Ausgabeöffnung mit einer leicht aufreißbaren Schicht abgedeckt sein. Die in dieser Weise zusammengestellte Vorrichtung ist einmal anwendbar : die Ausgabeöffnung wird unter Einwirkung des Überdruckes geöffnet und der Stoff kann in einem kontinuierlichen Strom in der gewünschten Richtung ausgespritzt werden. Durch die Erfindung ist der Aufbau wirksamer Vorrichtungen mit einfachen, billigen, leicht herstellbaren Bestandteilen ermöglicht. Die Behälter können nach der Benutzung weggeworfen werden. Das angewendete Treibmittel wird aus billigen, die Umwelt nicht verschmutzenden Stoffen, insbesondere aus entsprechenden Gasen ausgewählt. Daher stellt die Vorrichtung keine Explosions- und Feuergefahr bei nachträglichem gewaltsamen Öffnen dar. Es können Stoffbehälter mit unterschiedlichen Stoffen verwendet werden.Another possibility is to assemble the pressure container from two container parts and, on the one hand, to achieve the airtight closure of the pressure container and, on the other hand, to puncture the propellant container by assembling the container parts. In this case, the common contact surface of the containers can be formed by a movable partition wall of the containers and the dispensing opening can be covered with an easily tearable layer. The device assembled in this way can be used once: the dispensing opening is opened under the influence of excess pressure and the material can be sprayed out in a continuous flow in the desired direction. The invention enables the construction of effective devices with simple, cheap, easily manufactured components. The containers can be thrown away after use. The blowing agent used is selected from cheap, non-polluting substances, in particular from appropriate gases. Therefore, the device does not pose a risk of explosion and fire if it is subsequently opened violently. Material containers with different materials can be used.

Bei der erfindungsgemäßen Vorrichtung können vorgefertigte Stoff- und Treibmittelbehälter in unterschiedlicher ästhetischer Gestaltung verwendet werden und es können hierbei einfache Maßnahmen getroffen werden, den Inhalt jederzeit zuverlässig prüfen zu können (bei den Sprühdosen ist deren Inhalt nicht kontrollierbar). Der Stoffbehälter kann auch den Treibmittelbehälter als angebauten Bestandteil enthalten. Die Ausbildung des Stoffbehälters und des Treibmittelbehälters als Baueinheit führt zu weiteren Erleichterungen bei der Verteilung, der Beförderung und der Anwendung der Vorrichtung. Im Vergleich mit den bekannten Lösungen kann die erfindungsgemäße Vorrichtung um 50 bis 80 % billiger hergestellt werden. Die wegwerfbaren Verpackungen des Stoffbehälters und des Treibmittelbehälters bedeuten im Vergleich mit den Sprühdosen eine relativ geringe Verschmutzungsgefahr für die Umwelt ; außerdem kann das Treibmittel aus biologisch und ökologisch zuverlässig ungefährlichen Gasen ausgewählt werden.In the device according to the invention, prefabricated substance and propellant containers can be used in different aesthetic designs and simple measures can be taken to be able to reliably check the content at any time (the content of the spray cans cannot be checked). The fabric container can also contain the propellant container as an attached component. The design of the fabric container and the propellant container as a structural unit leads to further simplifications in the distribution, transport and use of the device. In comparison with the known solutions, the device according to the invention can be manufactured 50 to 80% cheaper. The disposable packaging of the fabric container and the propellant container mean a relatively low risk of pollution for the environment in comparison with the spray cans; in addition, the blowing agent can be selected from gases that are biologically and ecologically reliable and safe.

Claims (3)

1. Device for dispensing gaseous liquid or powdered substances, comprising a hermetically sealable pressure vessel (5) at one end of which a dispensing aperture is located which is preferably controlled by a valve (3) and the other end of which is closed by a closure cap (13), a piston (15, 16) displaceable in the pressure vessel (5) and dividing the latter into two space portions of which the first space portion, which is connected to the dispensing aperture, serves for accommodating the material to be dispensed, and the second space portion accommodates a pressurised propellant container (11) seated on a support mounting fitted to the piston (15, 16) and pierceable by a piercing unit (6, 8) attached to the closure cap (13), characterised in that the pressure vessel (5) is releasably sealable and that the piston (15, 16) forms the bottom of a deformable receptacle (9) holding the substance (10) to be dispensed and arranged in the first space portion ; the receptacle being pierceable through by a piercing tube (4) opening into the dispensing aperture.
2. Device according to claim 1, characterised in that the closure cap (13) is connected in a releasable fashion to the pressure vessel (5) by means of a screw thread, bayonet lock or by another kind of locking unit.
3. Device according to claim 1 or 3, characterised in that the propellant container (11) is mounted on the material receptacle (9) to form a component thereof.
EP80107166A 1980-11-18 1980-11-18 Device for dispensing gaseous, liquid or powdered substances Expired EP0052161B1 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
AT80107166T ATE12075T1 (en) 1980-11-18 1980-11-18 DEVICE FOR DISPENSING GASEOUS, LIQUID OR POWDERED SUBSTANCES.
DE8080107166T DE3070288D1 (en) 1980-11-18 1980-11-18 Device for dispensing gaseous, liquid or powdered substances
EP80107166A EP0052161B1 (en) 1980-11-18 1980-11-18 Device for dispensing gaseous, liquid or powdered substances

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP80107166A EP0052161B1 (en) 1980-11-18 1980-11-18 Device for dispensing gaseous, liquid or powdered substances

Publications (2)

Publication Number Publication Date
EP0052161A1 EP0052161A1 (en) 1982-05-26
EP0052161B1 true EP0052161B1 (en) 1985-03-13

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EP80107166A Expired EP0052161B1 (en) 1980-11-18 1980-11-18 Device for dispensing gaseous, liquid or powdered substances

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EP (1) EP0052161B1 (en)
AT (1) ATE12075T1 (en)
DE (1) DE3070288D1 (en)

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Publication number Priority date Publication date Assignee Title
US4993200A (en) * 1986-03-11 1991-02-19 Kawasaki Steel Techno-Research Corp Pollution free blaster system and blaster head therefor
DE3733521A1 (en) * 1987-10-03 1989-05-03 Neumann Wolfgang N Propellant gas-free spray can
WO2021066301A1 (en) * 2019-10-02 2021-04-08 주식회사 엘지생활건강 Leakage prevention container

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DE1806461B1 (en) * 1968-10-31 1970-03-12 Otto Berkmueller Tube or the like. Hollow cylindrical container for storing and dispensing a liquid or pasty filling material
GB1267643A (en) * 1969-02-03 1972-03-22 Oreal Dispensing containers
US3847304A (en) * 1973-08-13 1974-11-12 M Cohen Bag-type fluid and paste dispenser

Also Published As

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EP0052161A1 (en) 1982-05-26
ATE12075T1 (en) 1985-03-15
DE3070288D1 (en) 1985-04-18

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