EP0189549A2 - Delivery device for free-flowing media - Google Patents

Delivery device for free-flowing media Download PDF

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Publication number
EP0189549A2
EP0189549A2 EP85115117A EP85115117A EP0189549A2 EP 0189549 A2 EP0189549 A2 EP 0189549A2 EP 85115117 A EP85115117 A EP 85115117A EP 85115117 A EP85115117 A EP 85115117A EP 0189549 A2 EP0189549 A2 EP 0189549A2
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EP
European Patent Office
Prior art keywords
ventilation
wall surface
filter
germ filter
discharge
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.)
Granted
Application number
EP85115117A
Other languages
German (de)
French (fr)
Other versions
EP0189549A3 (en
EP0189549B1 (en
Inventor
Hans-Josef Schütz
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Aptar Radolfzell GmbH
Original Assignee
Erich Pfeiffer GmbH
Ing Erich Pfeiffer GmbH
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Filing date
Publication date
Application filed by Erich Pfeiffer GmbH, Ing Erich Pfeiffer GmbH filed Critical Erich Pfeiffer GmbH
Publication of EP0189549A2 publication Critical patent/EP0189549A2/en
Publication of EP0189549A3 publication Critical patent/EP0189549A3/en
Application granted granted Critical
Publication of EP0189549B1 publication Critical patent/EP0189549B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • A—HUMAN NECESSITIES
    • A45—HAND OR TRAVELLING ARTICLES
    • A45D—HAIRDRESSING OR SHAVING EQUIPMENT; EQUIPMENT FOR COSMETICS OR COSMETIC TREATMENTS, e.g. FOR MANICURING OR PEDICURING
    • A45D34/00—Containers or accessories specially adapted for handling liquid toiletry or cosmetic substances, e.g. perfumes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B11/00—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use
    • B05B11/0005—Components or details
    • B05B11/0037—Containers
    • B05B11/0039—Containers associated with means for compensating the pressure difference between the ambient pressure and the pressure inside the container, e.g. pressure relief means
    • B05B11/0044—Containers associated with means for compensating the pressure difference between the ambient pressure and the pressure inside the container, e.g. pressure relief means compensating underpressure by ingress of atmospheric air into the container, i.e. with venting means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B11/00—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use
    • B05B11/0005—Components or details
    • B05B11/0037—Containers
    • B05B11/0039—Containers associated with means for compensating the pressure difference between the ambient pressure and the pressure inside the container, e.g. pressure relief means
    • B05B11/0044—Containers associated with means for compensating the pressure difference between the ambient pressure and the pressure inside the container, e.g. pressure relief means compensating underpressure by ingress of atmospheric air into the container, i.e. with venting means
    • B05B11/00444—Containers associated with means for compensating the pressure difference between the ambient pressure and the pressure inside the container, e.g. pressure relief means compensating underpressure by ingress of atmospheric air into the container, i.e. with venting means with provision for filtering or cleaning the air flow drawn into the container
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B11/00—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use
    • B05B11/01—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use characterised by the means producing the flow
    • B05B11/10—Pump arrangements for transferring the contents from the container to a pump chamber by a sucking effect and forcing the contents out through the dispensing nozzle
    • B05B11/1001—Piston pumps
    • B05B11/1023—Piston pumps having an outlet valve opened by deformation or displacement of the piston relative to its actuating stem
    • B05B11/1026—Piston pumps having an outlet valve opened by deformation or displacement of the piston relative to its actuating stem the piston being deformable and its deformation allowing opening of the outlet
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B67—OPENING, CLOSING OR CLEANING BOTTLES, JARS OR SIMILAR CONTAINERS; LIQUID HANDLING
    • B67D—DISPENSING, DELIVERING OR TRANSFERRING LIQUIDS, NOT OTHERWISE PROVIDED FOR
    • B67D7/00—Apparatus or devices for transferring liquids from bulk storage containers or reservoirs into vehicles or into portable containers, e.g. for retail sale purposes
    • B67D7/02—Apparatus or devices for transferring liquids from bulk storage containers or reservoirs into vehicles or into portable containers, e.g. for retail sale purposes for transferring liquids other than fuel or lubricants
    • B67D7/0205—Apparatus or devices for transferring liquids from bulk storage containers or reservoirs into vehicles or into portable containers, e.g. for retail sale purposes for transferring liquids other than fuel or lubricants by manually operable pumping apparatus

Definitions

  • the invention relates to a discharge device for flowable media, in particular for pharmaceutical and / or cosmetic preparations, with a discharge channel for the active substance and with a ventilation channel forming a ventilation connection for the volume compensation of the discharged active substance.
  • the invention has for its object to provide a discharge device of the type mentioned so that the penetration of germs is largely avoided, such that the addition of germicidal stabilizing agents can be dispensed with even in preparations that could be a breeding ground for germs or the amount of these stabilizers can be significantly reduced.
  • the germ filter is expediently flat, in particular membrane-like, and preferably consists of a fiber filter made of polytetrafluoroethylene or the like.
  • the compact, space-saving housing of the germ filter is further improved in that the germ filter is placed against a wall surface through which the ventilation duct has a through opening and is preferably parallel with a small distance or at constant distances from this wall surface.
  • the ventilation channel in the area of the germ filter is sealed with at least one ring seal, the ring seal preferably being formed in one piece with the germ filter so that even with a relatively heavily added germ filter it is in any case prevented that even some of the ventilation air drawn into the active substance store can bypass the germ filter.
  • the, in particular bead-like ring seal is formed by pressing, gluing, welding or the like. the ring seal expediently adjoins the associated wall surface of the dispenser.
  • the germ filter is multiple, in particular many times larger than the rest of the cross-section of the ventilation connection, the germ filter with its ring seal and the associated wall surface penetrated by the ventilation duct preferably delimiting a filter inlet chamber into which the substantially smaller passage opening, in particular the Germ filter located centrally opposite, opens out.
  • the seed filter For a simple, space-saving and safe sealed attachment of the seed filter, it is encompassed at its edge surface of the War L side facing away from a window-like retaining frame, which is preferably directly attached to the wall surface, such as welded, bonded or the like is., And preferably to which the bacteria filter with the same, on both sides protruding over its thickness ring seal as on the wall surface, so that a good sealing pressure can be achieved.
  • the germ filter lies within the active substance store mentioned, as a result of which it is effectively protected against mechanical loads or damage and only comes into contact with the air which flows into the store through the ventilation connection for volume compensation.
  • a particularly simple assembly is obtained if the germ filter is arranged on an active substance discharge pump, such as the housing of a manually operated piston pump.
  • the germ filter is expediently arranged at approximately constant intervals on a wall surface which is approximately curved about the central axis of the discharge channel and / or immediately afterwards on a fastening flange of the discharge pump which projects above this wall surface.
  • the pump housing is in two parts, for example composed of a cylinder housing guiding the pump piston and a storage end cap closing it at the outer end, the germ filter is expediently only attached to one of these two components, preferably to the cylinder housing.
  • the discharge pump 1 has an active substance store, which is otherwise not shown in detail, which is essentially axially symmetrical Pump housing 2, which consists essentially of a gradually narrowing towards the inner end of the cylinder housing 3 and an end cap 4, which is attached to the outer, furthest end of the housing 3 by clip-like snap-in so that it covers the jacket of the Cylinder housing 3 in the area of the associated end overlaps both on the inner and on the outer circumference.
  • a pump piston 6 is slidably guided with a piston sleeve 7 made of elastic material, which tapers in the manner of a truncated cone to the outer end of the housing 2 and tapers with it inner end is guided in the manner of an annular sealing lip on the track 5.
  • a piston sleeve 7 made of elastic material, which tapers in the manner of a truncated cone to the outer end of the housing 2 and tapers with it inner end is guided in the manner of an annular sealing lip on the track 5.
  • an elastic compression sleeve 8 which is formed in one piece therewith, the outer end of which is fastened to a piston tappet 9 by annular clamping.
  • the piston tappet 9 which protrudes from the cap 4 for manual operation, has a discharge channel 11 for the active substance which extends from the pump chamber 10 receiving the piston 6 to its outer end, the discharge channel 11 through the interior of the piston sleeve 7 and the Compression sleeve 8 leads.
  • a discharge valve 12 is provided, the annular movable valve closing part of which is formed by a valve lip projecting annularly over the inner surface of the component which forms the piston sleeve 7 and / or the compression sleeve 8.
  • the valve seat 14 for this valve closing part 13 is formed by the Kollens tappet 9 and is flared at an obtuse angle towards the inner end of the discharge pump 1.
  • the valve closing part 13 is pressed against the valve seat 14 by the axial prestressing of the compression sleeve 8.
  • the end Trag valve 12 can be designed as a pressure relief valve or, as in the illustrated embodiment, as a mechanically opening valve which is opened at the end of the pump stroke by running the piston sleeve 7 onto a stop shoulder 15 of the pump housing 2.
  • the pump piston 6 is loaded by a prestressed return spring 16 arranged in the cylinder housing 3, which is supported on the one hand at the inner end of the piston rod 9 and on the other hand in the area of an inlet valve 17 designed as a check valve for the pump chamber 10 relative to the pump housing 2.
  • the discharge pump 1 is expediently arranged on or in the storage indicated by dash-dotted lines at 20 in such a way that the pump housing 2 engages in the neck 21 of the storage 20 following the end cap 4 and one provided on the cap 4 and above it
  • the circumferential projecting annular fastening flange 22 is sealed against the outer end face of the neck 21.
  • a discharge channel 23 leads through the discharge pump 1 as a ventilation connection between the interior of the reservoir 20 and the outside atmosphere.
  • the ventilation channel 23 is formed between the outside atmosphere and a ventilation valve 24 located inside the pump housing 2 in a filter inlet chamber 25 by an annular gap which is located radially on the inside is delimited by the outer section of the piston tappet 9 and the compression sleeve 8 adjoining it and radially on the outside by an inner sleeve 26 which that engages in the cylinder housing 3 section of the end cap 4.
  • the wall 27 of the housing 3 is penetrated by an axially slot-shaped passage opening 28, which establishes the ventilation connection to the inlet chamber 25 and the interior of the store 20.
  • the movable valve closing part 29 of the ventilation valve 24 is formed by a portion of the piston sleeve 7 or the compression sleeve 8 which is enlarged in the shape of a truncated cone on the outer circumference against the pump chamber 10, this portion lying essentially in the same axial area as the valve closing part 13.
  • the valve seat 30 for the valve closing part 29 the inner end of the inner sleeve 26 is provided, at the radially inner end edge of which the valve closing part 29 bears under initial tension in the initial position of the pump piston 6 such that the discharge valve 12 is simultaneously under closing pressure. In the starting position, both the discharge duct 11 and the ventilation duct 23 are therefore inevitably closed.
  • the valve closing part 29 lifts off the valve seat 30, so that the ventilation valve 24 and thus the ventilation channel 23 are opened into the interior of the accumulator 20.
  • a germ filter 31 is arranged in the ventilation connection having the ventilation channel 23 between the outside atmosphere and the inside of the store 20 and is placed directly adjacent to the outer circumference of the cylinder housing 3 on its associated wall surface 32.
  • the flat, for example circular disc-shaped, germ filter 31 is arranged in the area of the passage opening 28 and symmetrically to the axial plane of the discharge pump 1 passing through it in such a way that that of the input chamber 25 ventilation air flowing into the storage 20 can only and completely enter the storage 20 only through the germ filter 31.
  • the germ filter 31 is formed in one piece with a circumferential ring seal 33, which in the manner of ring beads protrudes on both sides approximately equally far beyond the surfaces of the germ filter 31, such that a protruding ring seal is formed on each surface and the two ring seals in View of the germ filter 31 are substantially congruent with each other.
  • the germ filter 31 is pressed under pressure on the one hand against the wall surface 32 and on the other hand the ring seal 33 with its side facing away from this wall surface 32 is in contact with a window-like holding frame 34 which, for example, by pressing, gluing, welding or the like on the cylinder -Housing 3, in particular is exclusively attached to the wall surface 32;
  • the holding frame 34 is designed so that it is also attached to the end cap 4 in the region of the inner end face of the fastening flange 22, but in most cases it is expedient to hold the holding frame 34 only on one of the two, that To attach the pump housing 2 forming components and, if necessary, to engage in the end cap 4 in the area of the mounting flange 22.
  • the central opening of the holding frame 34 forms the inlet opening for the ventilation air emerging from the germ filter 31 into the reservoir 20; this inlet opening is only slightly smaller than the filter field within the ring seal 33%.
  • the holding frame 34 is expediently at least partially angular in cross section, such that one angle leg overlaps the ring seal 33 and the other angle leg is used for fastening to the pump housing 2.
  • the holding frame 34 can also be formed, for example, by at least one ring or a sleeve which is pushed and / or welded onto the pump housing 2, for example by pressing, in such a way that the holding frame surrounds the housing 2 on the outer circumference or in the central axis 35 of the discharge pump 1.

Abstract

Die Austragpumpe (1) einer Austragvorrichtung für fließfähige Medien ist zur Belüftung des Wirkstoff-Speichers (20) mit einem Belüftungskanal (23) versehen und die dadurch gebildete Belüftungsverbindung geht durch einen Keimfilter (31), welcher im Inneren des Speichers (20), einer Belüftungs-Durchtrittsöffnung (28) mit geringem Abstand gegenüberliegend, am Außenumfang des Pumpem-?Gehäuses? (2) angeordnet ist. Dadurch werden Bakterien, die mit der Belüftungsluft in den Speicher (20) eindringen könnten, innerhalb der Austragpumpe (1) und vor Erreichen des Speichers (20) zurückgehalten.The discharge pump (1) of a discharge device for flowable media is provided with a ventilation channel (23) for ventilation of the active substance store (20) and the ventilation connection thus formed passes through a germ filter (31), which is located inside the store (20) Ventilation passage opening (28) opposite each other at a small distance, on the outer circumference of the Pumpem? Housing? (2) is arranged. Bacteria that could enter the storage (20) with the ventilation air are thereby retained within the discharge pump (1) and before reaching the storage (20).

Description

Die Erfindung betrifft eine Austragvorrichtung für fließfähige Medien, insbesondere für pharmazeutische und/oder kosmetische Zubereitungen, mit einem Austragkanal für den Wirkstoff und mit einem eine Belüftungsverbindung bildenden Belüftungskanal für den Volumenausgleich des ausgetragenen Wirkstoffes.The invention relates to a discharge device for flowable media, in particular for pharmaceutical and / or cosmetic preparations, with a discharge channel for the active substance and with a ventilation channel forming a ventilation connection for the volume compensation of the discharged active substance.

Zahlreiche pharmazeutische und kosmetische Zubereitungen haben Eigenschaften, die sie nach Art eines Nährbodens für die Vermehrung von Bakterien und dergl. geeignet machen. Um das Verderben solcher Zubereitungen durch Eindringen von Bakterien über die Belüftungsverbindung des Wirkstoff-Spenders zu verhindern, müssen den Zubereitungen däher solche Stabilisationsmittel zugegeben werden, die keimtötend wirken. Die Applikation dieser Stabilisationsmittel am Patienten kann jedoch zu unkalkulierbaren Nebenwirkungen führen, die äußerst unerwünscht sind.Numerous pharmaceutical and cosmetic preparations have properties that make them suitable for the multiplication of bacteria and the like in the manner of a nutrient medium. In order to prevent such preparations from spoiling due to the penetration of bacteria via the aeration connection of the active substance dispenser, stabilizers which have a germicidal effect must be added to the preparations. However, the application of these stabilizers to the patient can lead to incalculable side effects, which are extremely undesirable.

Der Erfindung liegt die Aufgabe zugrunde,eine Austrag-Vorrichtung der genannten Art so auszubilden, daß ein Eindringen von Keimen weitestgehend vermieden ist, derart, daß auch bei solchen Zubereitungen, die ein Nährboden für Keime sein könnten, auf die Beigabe keimtötender Stabilisiationsmittel verzichtet werden kann bzw. die Menge dieser Stabilisationsmittel wesentlich reduziert werden kann.The invention has for its object to provide a discharge device of the type mentioned so that the penetration of germs is largely avoided, such that the addition of germicidal stabilizing agents can be dispensed with even in preparations that could be a breeding ground for germs or the amount of these stabilizers can be significantly reduced.

Diese Aufgabe wird bei einer Austragvorrichtung der eingangs beschriebenen Art erfindungsgemäß dadurch gelöst, daß die Belüftungsverbindung durch einen Keimfilter verläuft. Durch diese überraschend einfache Maßnahme kann bei den in aller Regel sehr kleinvolumigen Wirkstoff-Spendern wirksam verhindert werden, daß mit der über die Belüftungsverbindung zum Zwecke des Volumenausgleiches in den Spenderspeicher eindringenden Luft auch Keime bzw. Bakterien in-den im Speicher befindlichen Wirkstoff gelangen, wozu lediglich die Porengröße des Keimfilters unter der BaKteriengröße zu liegen braucht.This object is achieved in a discharge device of the type described in the introduction in that the ventilation connection runs through a germ filter. With this surprisingly simple measure, in the generally very small-volume dispensers of active substances, it is possible to effectively prevent germs or bacteria from entering the active substance in the store via the ventilation connection for the purpose of volume compensation only the pore size of the germ filter needs to be below the bacterial size.

* Damit die Abmessungen der Vorrichtung für den Einbau -des Keimfilters nicht oder nur allenfalls unwesentlich vergrößert werden müssen, ist der Keimfilter zweckmäßig flächig, insbesondere membranartig ausgebildet, wobei er vorzugsweise aus einem Faserfilter aus Polytetrafluoräthylen oder dergl. besteht.* So that the dimensions of the device for the installation of the germ filter do not have to be enlarged, or only need to be increased insignificantly, the germ filter is expediently flat, in particular membrane-like, and preferably consists of a fiber filter made of polytetrafluoroethylene or the like.

Die kompakte raumsparende Unterbringung des Keimfilters wird noch weiter dadurch verbessert, daß der Keimfilter gegen eine vom BelUftungskanal mit einer Durchtrittsöffnung durchsetzte Wandungsfläche gelegt ist und vorzugsweise mit geringem Abstand parallel bzw. mit konstanten Abständen zu dieser Wandungsfläche liegt.The compact, space-saving housing of the germ filter is further improved in that the germ filter is placed against a wall surface through which the ventilation duct has a through opening and is preferably parallel with a small distance or at constant distances from this wall surface.

Eine besonders vorteilhafte Weiterbildung des Erfindungsgegenstandes besteht darin, daß der Belüftungskanal im Bereich des Keimfilters mit mindestens einer Ringdichtung abgedichtet ist, wobei die Ringdichtung vorzugsweise einteilig mit dem Keimfilter ausgebildet ist so daß selbst bei relativ stark zugesetztem Keimfilter auf jeden Fall verhindert ist, daß auch nur ein Teil der in den Wirkstoff-Speicher nachgesaugten Belüftungsluft den Keimfilter umgehen kann. Bei einer sehr einfachen Ausführungsform ist die, insbesondere wulstartige Ringdichtung durch Pressung, Klebung, Schweißung oder dergl. gebildet; die Ringdichtung schließt zweckmäßig unmittelbar an die zugehörige Wandungsfläche des Spenders an.A particularly advantageous development of the subject matter of the invention is that the ventilation channel in the area of the germ filter is sealed with at least one ring seal, the ring seal preferably being formed in one piece with the germ filter so that even with a relatively heavily added germ filter it is in any case prevented that even some of the ventilation air drawn into the active substance store can bypass the germ filter. In a very simple embodiment, the, in particular bead-like ring seal is formed by pressing, gluing, welding or the like. the ring seal expediently adjoins the associated wall surface of the dispenser.

In weiterer Ausgestaltung der Erfindung ist der Keimfilter mehrfach, insbesondere vielfach größer als der übrige Querschnitt der Belüftungsverbindung, wobei vorzugsweise der Keimfilter mit seiner Ringdichtung und der zugehörigen, vom Belüftungskanal durchsetzten Wandungsfläche eine Filter-Eingangskammer begrenzt, in welche die wesentlich kleinere Durchtrittsöffnung, insbesondere dem Keimfilter zentral gegenüberliegend, mündet. Dadurch kann bei kompakter Bauweise eine sehr hohe Aufnahmekapazität des Filters erreicht werden, so daß auch bei verhältnismäßig hoher Filterbelastung noch eine ausreichende Filterdurchlässigkeit für die Aufrechterhaltung der Belüftung des Spenders sichergestellt ist.In a further embodiment of the invention, the germ filter is multiple, in particular many times larger than the rest of the cross-section of the ventilation connection, the germ filter with its ring seal and the associated wall surface penetrated by the ventilation duct preferably delimiting a filter inlet chamber into which the substantially smaller passage opening, in particular the Germ filter located centrally opposite, opens out. As a result, a very high absorption capacity of the filter can be achieved with a compact design, so that even with a relatively high filter load, sufficient filter permeability is ensured for maintaining the ventilation of the dispenser.

Zur einfachen, raumsparenden und sicher abgedichteten Befestigung des Keimfilters ist dieser an seiner von der WarLdungsfläche abgekehrten Seite von einem fensterartigen Halterahmen umgriffen, der vorzugsweise unmittelbar an der Wandungsfläche befestigt, wie angeschweißt, geklebt oder dergl. ist und an welchem der Keimfilter vorzugsweise mit derselben, beiderseits über seine Dicke vorstehenden Ringdichtung wie an der Wandungsfläche anliegt, so daß eine gute Dichtungspressung erzielt werden kann.For a simple, space-saving and safe sealed attachment of the seed filter, it is encompassed at its edge surface of the War L side facing away from a window-like retaining frame, which is preferably directly attached to the wall surface, such as welded, bonded or the like is., And preferably to which the bacteria filter with the same, on both sides protruding over its thickness ring seal as on the wall surface, so that a good sealing pressure can be achieved.

Nach einem weiteren Merkmal der Erfindung liegt der Keimfilter innerhalb des genannten Wirkstoff-Speichers, wodurch er wirksam gegen mechanische Belastungen bzw. Beschädigungen geschützt ist und nur mit derjenigen Luft in Berührung kommt, die zum Volumenausgleich durch die Belüftungsverbindung in den Speicher strömt. Eine besonders einfache Montage ergi.bt sich dabei, wenn der Keimfilter an einer Wirkstoff-Austragpumpe, wie dem Gehäuse einer handbetätigten Kolbenpumpe angeordnet ist. Zweckmäßig ist dabei der Keimfilter mit etwa konstanten Abständen an einer annähernd um die Mittelachse des Austragkanales gekrümmten Wandungsfläche und/oder unmittelbar anschließend an einen über diese Wandungsfläche vorstehenden Befestigungsflansch der Austragpumpe angeordnet. Ist das Pumpen-Gehäuse zweiteilig, beispielsweise aus einem den Pumpkolben führenden Zylindergehäuse und einer dieses am äußeren Ende verschließenden Speicher-Abschlußkappe zusammengesetzt, so ist der Keimfilter zweckmäßig nur an einem dieser beiden Bauteile, vorzugsweise am Zylindergehäuse befestigt.According to a further feature of the invention, the germ filter lies within the active substance store mentioned, as a result of which it is effectively protected against mechanical loads or damage and only comes into contact with the air which flows into the store through the ventilation connection for volume compensation. A particularly simple assembly is obtained if the germ filter is arranged on an active substance discharge pump, such as the housing of a manually operated piston pump. The germ filter is expediently arranged at approximately constant intervals on a wall surface which is approximately curved about the central axis of the discharge channel and / or immediately afterwards on a fastening flange of the discharge pump which projects above this wall surface. If the pump housing is in two parts, for example composed of a cylinder housing guiding the pump piston and a storage end cap closing it at the outer end, the germ filter is expediently only attached to one of these two components, preferably to the cylinder housing.

Die Erfindung wird im folgenden mit weiteren Einzelheiten anhand des in den Zeichnungen dargestellten Ausführungsbeispieles näher erläutert. Es sind dargestellt in

  • Fig. 1 die Wirkstoff-Austragpumpe eines erfindungsgemäßen Spenders teilweise im Axialschnitt,
  • Fig. 2 ein Ausschnitt der Fig. 1 in vergrößerter Darstellung,
  • Fig. 3 ein Schnitt nach der Linie III/III in Fig. 2.
The invention is explained in more detail below with further details with reference to the embodiment shown in the drawings. They are shown in
  • 1 shows the active substance discharge pump of a dispenser according to the invention partly in axial section,
  • 2 shows a detail of FIG. 1 in an enlarged view,
  • 3 shows a section along the line III / III in FIG. 2.

Wie die Figuren 1 bis 3 zeigen,weist die erfindungsgemäße Austragpumpe 1 einen ansonsten nicht näher dargestellten Wirkstoff-Speichers ein im wesentlichen achssymmetrisches Pumpen-Gehäuse 2 auf, das im wesentlichen aus einem zum inneren Ende abgestuft enger werdenden Zylinder-Gehäuse 3 und einer Abschluß-Kappe 4 besteht, die am äußeren, weitesten Ende des Gehäuses 3 durch klipsartiges Einsprengen derart befestigt ist, daß sie den Mantel des Zylinder-Gehäuses 3 im Bereich des zugehörigen Endes sowohl am Innen- wie auch am Außenumfang übergreift. In einer im Anschluß an die Kappe 4 im Gehäuse 3 vorgesehenen, im wesentlichen zylindrischen Kolben-Laufbahn 5 ist ein Pumpkolben 6 mit einer Kolbenmanschette 7 aus elastischem Werkstoff gleitbar geführt, welche nach Art einer Kegelstumpfhülse zum äußeren Ende des Gehäuses 2 konisch verjüngt und mit ihrem inneren Ende nach Art einer Ringdichtlippe an der Laufbahn 5 geführt ist. An das hintere Ende der Kolbenmanschette 7 schließt sich eine einteilig mit dieser ausgebildete elastische Stauchhülse 8 an, deren äußeres Ende durch ringförmige Einspannung an einem Kolbenstößel 9 befestigt ist. Der Kolbenstößel 9, der zur Betätigung von Hand aus der Kappe 4 vorsteht, weist einen von der den Kolben 6 aufnehmenden Pumpenkammer 10 bis zu seinem äußeren Ende reichenden Austragkanal 11 für den Wirkstoff auf, wobei der Austragkanal 11 durch das Innere der Kolbenmanschette 7 und der Stauchhülse 8 führt. Im Obergangsbereich zwischen der Kolbenmanschette 7 und der Stauchhülse 8 ist ein Austrag-Ventil 12 vorgesehen, dessen ringförmiger beweglicher Ventil-Schließteil durch eine ringförmig über die Innenfläche desjenigen Bauteiles vorstehende Ventillippe gebildet ist, welcher die Kolbenmanschette 7 und/oder die Stauchhülse 8 bildet. Der Ventilsitz 14 für diesen Ventil-Schließteil 13 ist durch den Kollens-tößel 9 gebildet und zum inneren Ende der Austragpumpe 1 hin stumpfwinklig konisch erweitert. Der Ventil- Schließteil 13 wird durch die axiale Vorspannung der Stauchhülse 8 gegen den Ventilsitz 14 gepresst. Das Austrag-Ventil 12 kann als Überdruckventil oder, wie im dargestellten Ausführungsbeispiel, als mechanisch zu öffnendes Ventil ausgebildet sein, das am Ende des Pumphubes durch Auflaufen der Kolbenmanschette 7 auf eine Anschlagschulter 15 des Pumpen-Gehäuses 2 geöffnet wird. Zur Ausgangslage ist der Pumpkolben 6 durch eine im Zylinder- Gehäuse 3 angeordnete vorgespannte Rückstellfeder 16 belastet, die einerseits am inneren Ende des Kolbenstößels 9 und andererseits im Bereich eines als Rückschlagventil ausgebildeten Einlaßventiles 17 für die Pumpenkammer 10 gegenüber dem Pumpen-Gehäuse 2 abgestützt ist.As FIGS. 1 to 3 show, the discharge pump 1 according to the invention has an active substance store, which is otherwise not shown in detail, which is essentially axially symmetrical Pump housing 2, which consists essentially of a gradually narrowing towards the inner end of the cylinder housing 3 and an end cap 4, which is attached to the outer, furthest end of the housing 3 by clip-like snap-in so that it covers the jacket of the Cylinder housing 3 in the area of the associated end overlaps both on the inner and on the outer circumference. In a connection to the cap 4 provided in the housing 3, essentially cylindrical piston race 5, a pump piston 6 is slidably guided with a piston sleeve 7 made of elastic material, which tapers in the manner of a truncated cone to the outer end of the housing 2 and tapers with it inner end is guided in the manner of an annular sealing lip on the track 5. At the rear end of the piston sleeve 7 there is an elastic compression sleeve 8 which is formed in one piece therewith, the outer end of which is fastened to a piston tappet 9 by annular clamping. The piston tappet 9, which protrudes from the cap 4 for manual operation, has a discharge channel 11 for the active substance which extends from the pump chamber 10 receiving the piston 6 to its outer end, the discharge channel 11 through the interior of the piston sleeve 7 and the Compression sleeve 8 leads. In the transition area between the piston sleeve 7 and the compression sleeve 8, a discharge valve 12 is provided, the annular movable valve closing part of which is formed by a valve lip projecting annularly over the inner surface of the component which forms the piston sleeve 7 and / or the compression sleeve 8. The valve seat 14 for this valve closing part 13 is formed by the Kollens tappet 9 and is flared at an obtuse angle towards the inner end of the discharge pump 1. The valve closing part 13 is pressed against the valve seat 14 by the axial prestressing of the compression sleeve 8. The end Trag valve 12 can be designed as a pressure relief valve or, as in the illustrated embodiment, as a mechanically opening valve which is opened at the end of the pump stroke by running the piston sleeve 7 onto a stop shoulder 15 of the pump housing 2. At the starting position, the pump piston 6 is loaded by a prestressed return spring 16 arranged in the cylinder housing 3, which is supported on the one hand at the inner end of the piston rod 9 and on the other hand in the area of an inlet valve 17 designed as a check valve for the pump chamber 10 relative to the pump housing 2.

Das als einfaches Kugelventil ausgebildete Einlaßventil 17 ist im Anschluß an einen Verbindungsstutzen 18 vorgesehen, welcher das engste und innere Ende des Zylinder-Gehäuses 3 bildet und zur Aufnahme des einen Endes eines Steigrohres 19 dient, dessen anderes Ende zweckmäßig in dem der Austragpumpe 1 gegenüberliegenden Bodenbereich des Speichers angeordnet ist. Die Austragpumpe 1 ist zweckmäßig derart an bzw. in dem bei 20 strichpunktiert angedeuteten Speicher angeordnet, daß das Pumpen-Gehäuse 2 im Anschluß an die Abschluß-Kappe 4 in den Hals 21 des Speichers 20 eingreift und ein an der Kappe 4 vorgesehener und über deren Umfang vorstehender ringförmiger Befestigungsflansch 22 abgedichtet gegen die äußere Stirnfläche des Halses 21 gespannt ist.The inlet valve 17, which is designed as a simple ball valve, is provided following a connecting piece 18 which forms the narrowest and inner end of the cylinder housing 3 and serves to receive one end of a riser pipe 19, the other end of which is expediently located in the bottom region opposite the discharge pump 1 of the memory is arranged. The discharge pump 1 is expediently arranged on or in the storage indicated by dash-dotted lines at 20 in such a way that the pump housing 2 engages in the neck 21 of the storage 20 following the end cap 4 and one provided on the cap 4 and above it The circumferential projecting annular fastening flange 22 is sealed against the outer end face of the neck 21.

Durch die Austragpumpe 1 führt als Belüftungsverbindung zwischen dem Inneren des Speichers 20 und der Außenatmosphäre ein Belüftungskanal 23, der zwischen der Außenatmosphäre und einem innerhalb des Pumpen-Gehäuses 2 in einer Filter-Eingangskammer 25 liegenden Belüftungsventil 24 durch einen Ringspalt gebildet ist, welcher radial innen vom äußeren Abschnitt des Kolbenstößels 9 sowie der an diesen anschließenden StauchhUlse 8 und radial außen von einer Innenhülse 26 begrenzt ist, welche den in das Zylinder-Gehäuse 3 eingreifenden Abschnitt der Abschluß-Kappe 4 bildet. Im Bereich der Filter-Eingangskammer 25 ist die Wandung 27 des Gehäuses 3 von einer axialschlitzförmigen Durchtrittsöffnung 28 durchsetzt, welche die Belüftungsverbindung zu der Eingangskammer 25 und dem Inneren des Speichers 20 herstellt.A discharge channel 23 leads through the discharge pump 1 as a ventilation connection between the interior of the reservoir 20 and the outside atmosphere. The ventilation channel 23 is formed between the outside atmosphere and a ventilation valve 24 located inside the pump housing 2 in a filter inlet chamber 25 by an annular gap which is located radially on the inside is delimited by the outer section of the piston tappet 9 and the compression sleeve 8 adjoining it and radially on the outside by an inner sleeve 26 which that engages in the cylinder housing 3 section of the end cap 4. In the area of the filter inlet chamber 25, the wall 27 of the housing 3 is penetrated by an axially slot-shaped passage opening 28, which establishes the ventilation connection to the inlet chamber 25 and the interior of the store 20.

Der bewegliche Ventilschließteil 29 des Belüftungsventiles 24 ist durch einen am Außenumfang kegelstumpfförmig gegen die Pumpenkammer 10 erweiterten Abschnitt der Kolbenmanschette 7 bzw. der Stauchhülse 8 gebildet, wobei dieser Abschnitt im wesentlichen im selben Axialbereich wie der Ventil-Schließteil 13 liegt. Als Ventilsitz 30 für den Ventil-Schließteil 29 ist das innere Ende der Innenhülse 26 vorgesehen, an.deren radial inneren Endkante der Ventilschließteil 29 bei Ausgangslage des Pumpkolbens 6 unter Vorspannung derart anliegt, daß das Austrag-Ventil 12 gleichzeitig unter Schließpressung steht. In Ausgangslage ist also sowohl der Austragkanal 11 als auch der Belüftungskanal 23 zwangsläufig abgedichtet geschlossen. Mit Beginn des Pumphubes hebt der Ventil- Schließteil 29 vom Ventilsitz 30 ab, so daß das Belüftungsventil 24 und damit der Belüftungskanal 23 bis in das Innere des Speichers 20 geöffnet ist.The movable valve closing part 29 of the ventilation valve 24 is formed by a portion of the piston sleeve 7 or the compression sleeve 8 which is enlarged in the shape of a truncated cone on the outer circumference against the pump chamber 10, this portion lying essentially in the same axial area as the valve closing part 13. As the valve seat 30 for the valve closing part 29, the inner end of the inner sleeve 26 is provided, at the radially inner end edge of which the valve closing part 29 bears under initial tension in the initial position of the pump piston 6 such that the discharge valve 12 is simultaneously under closing pressure. In the starting position, both the discharge duct 11 and the ventilation duct 23 are therefore inevitably closed. At the beginning of the pump stroke, the valve closing part 29 lifts off the valve seat 30, so that the ventilation valve 24 and thus the ventilation channel 23 are opened into the interior of the accumulator 20.

In der den Belüftungskanal 23 aufweisenden BelUftungsverbindung zwischen der Außenatmosphäre und dem Innern des Speichers 20 ist ein Keimfilter 31 angeordnet, der unmittelbar benachbart zum Außenumfang des Zylinder-Gehäuses 3 an dessen zugehörige Wandungsfläche 32 angelegt ist. Der flächige, beispielsweise kreisscheibenförmige Keimfilter 31 ist derart im Bereich der Durchtrittsöffnung 28 und symmetrisch zu der durch diese, gehenden Axialebene der Austragpumpe 1 angeordnet, daß die von der Eingangskammer 25 in den Speicher 20 strömende Belüftungsluft ausschließlich und vollständig nur durch den Keimfilter 31 in den Speicher 20 gelangen kann. Der Keimfilter 31 ist einteilig mit einer benachbart zu seinem Außenumfang geschlossen umlaufenden Ringdichtung 33 ausgebildet,die nach Art von Ringwulsten beiderseits etwa gleich weit über die Oberflächen des Keimfilters 31 vorsteht, derart, daß an jeder Oberfläche eine vorstehende Ringdichtung gebildet ist und die beiden Ringdichtungen in Ansicht auf den Keimfilter 31 im wesentlichen deckungsgleich zueinander liegen. Mit der Ringdichtung 33 ist der Keimfilter 31 unter Pressung einerseits gegen die Wandungsfläche 32 angelegt und andererseits liegt die Ringdichtung 33 mit ihrer von dieser Wandungsfläche 32 abgekehrten Seite an einem fensterartigen Halterahmen 34 an, der beispielsweise durch Pressung, Klebung, Schweißung oder dergl. am Zylinder-Gehäuse 3, insbesondere ausschließlich an der Wandungsfläche 32 befestigt ist; im dargestellten Ausführungsbeispiel ist der Halterahmen 34 so gestaltet, daß er im Bereich der inneren Stirnfläche des Befestigungsflansches 22 auch an der Abschluß-Kappe 4 befestigt ist, jedoch ist es in den meisten Fällen zweckmäßig, den Halterahmen 34 nur an einem einzigen der beiden, das Pumpen-Gehäuse 2 bildenden Bauteile zu befestigen und ggf. im Bereich des Befestigungsflansches 22 in die Abschluß-Kappe 4 eingreifen zu lassen. Die zentrale öffnung des Halterahmens 34 bildet die Eintrittsöffnung für die aus dem Keimfilter 31 austretende Belüftungsluft in den Speicher 20; diese Eintrittsöffnung ist nur geringfügig kleiner als das Filterfeld innerhalb der Ringdich- tuJ%g 33. Der Halterahmen 34 ist im Querschnitt zweckmäßig wenigstens teilweise winkelförmig, derart daß ein Winkelschenkel die Ringdichtung 33 übergreift und der andere Winkelschenkel zur Befestigung am Pumpen-Gehäuse 2 dient. Der Halterahmen 34 kann auch beispielsweise durch mindestens einen Ring bzw. eine Hülse gebildet sein, welche auf das Pumpen-Gehäuse 2, beispielsweise mit Pressung, aufgeschoben und/oder geschweißt ist, derart, daß der Halterahmen das Gehäuse 2 am Außenumfang umgibt bzw. in der Mittelachse 35 der Austragpumpe 1 liegt.A germ filter 31 is arranged in the ventilation connection having the ventilation channel 23 between the outside atmosphere and the inside of the store 20 and is placed directly adjacent to the outer circumference of the cylinder housing 3 on its associated wall surface 32. The flat, for example circular disc-shaped, germ filter 31 is arranged in the area of the passage opening 28 and symmetrically to the axial plane of the discharge pump 1 passing through it in such a way that that of the input chamber 25 ventilation air flowing into the storage 20 can only and completely enter the storage 20 only through the germ filter 31. The germ filter 31 is formed in one piece with a circumferential ring seal 33, which in the manner of ring beads protrudes on both sides approximately equally far beyond the surfaces of the germ filter 31, such that a protruding ring seal is formed on each surface and the two ring seals in View of the germ filter 31 are substantially congruent with each other. With the ring seal 33, the germ filter 31 is pressed under pressure on the one hand against the wall surface 32 and on the other hand the ring seal 33 with its side facing away from this wall surface 32 is in contact with a window-like holding frame 34 which, for example, by pressing, gluing, welding or the like on the cylinder -Housing 3, in particular is exclusively attached to the wall surface 32; In the illustrated embodiment, the holding frame 34 is designed so that it is also attached to the end cap 4 in the region of the inner end face of the fastening flange 22, but in most cases it is expedient to hold the holding frame 34 only on one of the two, that To attach the pump housing 2 forming components and, if necessary, to engage in the end cap 4 in the area of the mounting flange 22. The central opening of the holding frame 34 forms the inlet opening for the ventilation air emerging from the germ filter 31 into the reservoir 20; this inlet opening is only slightly smaller than the filter field within the ring seal 33%. The holding frame 34 is expediently at least partially angular in cross section, such that one angle leg overlaps the ring seal 33 and the other angle leg is used for fastening to the pump housing 2. The holding frame 34 can also be formed, for example, by at least one ring or a sleeve which is pushed and / or welded onto the pump housing 2, for example by pressing, in such a way that the holding frame surrounds the housing 2 on the outer circumference or in the central axis 35 of the discharge pump 1.

Claims (9)

1. Austragvorrichtung für fließfähige Medien,insbesondere für pharmazeutische und oder kosmetische Zubereitungen, mit einem Austragkanal für den Wirkstoff und mit einem eine Belüftungsverbindung bildenden Belüftungskanal für den Volumenausgleich des ausgetragenen Wirkstoffen, dadurch gekennzeichnet, daß die Belüftungsverbindung durch einen Keimfilter (31) verläuft.1. Discharge device for flowable media, in particular for pharmaceutical and or cosmetic preparations, with a discharge channel for the active substance and with a ventilation channel forming a ventilation connection for the volume compensation of the discharged active substances, characterized in that the ventilation connection runs through a germ filter (31). 2. Vorrichtung, insbesondere nach Anspruch 1, dadurch gekennzeichnet, daß der Keimfilter (31) flächig, insbesondere membranartig ausgebildet ist, vorzugsweise aus einem Faserfilter aus Polytetrafluoräthylen o.dgl. besteht.2. Device, in particular according to claim 1, characterized in that the germ filter (31) is flat, in particular membrane-like, preferably made of a fiber filter made of polytetrafluoroethylene or the like. consists. 3. Vorrichtung, insbesondere nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß der Keimfilter (31) gegen eine vom Belüftungskanal (23) mit einer Durchtrittsöffnung (28) durchsetzte Wandungsfläche (32) gelegt ist und vorzugsweise mit geringem Abstand parallel zu dieser Wandungsfläche (32) liegt.3. A device, in particular according to claim 1 or 2, characterized in that the germ filter (31) is placed against a wall surface (32) penetrated by the ventilation channel (23) with a passage opening (28) and preferably at a short distance parallel to this wall surface ( 32) lies. 4. Vorrichtung, insbesondere nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, daß der Belüftungskanal (23) im Bereich des Keimfilters (31) mit mindestens einer Ringdichtung (33) abgedichtet ist, wobei die Ringdichtung (33) vorzugsweise einteilig mit dem Keimfilter (31) ausgebildet ist.4. Device, in particular according to one of claims 1 to 3, characterized in that the ventilation channel (23) in the area of the germ filter (31) is sealed with at least one ring seal (33), the ring seal (33) preferably in one piece with the germ filter (31) is formed. 5. Vorrichtung, insbesondere nach Anspruch 4, dadurch gekennzeichnet, daß die, insbesondere wulstartige Ringdichtung (33) durch Pressung, Klebung, Schweißung o.dgl. gebildet ist und/oder an die zugehörige Wandungsfläche (32) des Spenders anschließt.5. The device, in particular according to claim 4, characterized in that the, in particular bead-like ring seal (33) or the like by pressing, gluing, welding. is formed and / or connects to the associated wall surface (32) of the dispenser. 6. Vorrichtung, insbesondere nach einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, daß der Keimfilter (31) mehrfach, insbesondere vielfach größer als der übrige Querschnitt der Belüftungswerbindung ist und daß vorzugsweise der Keimfilter (31) mit seiner Ringdichtung (33) und der zugehörigen, vom Belüftungskanal (23) durchsetzten Wandungsfläche (32) eine Filter-Eingangskammer (25) begrenzt, in welche die wesentlich kleinere Durchtrittsöffnung (28), insbesondere dem Keimfilter (31) gegenüberliegend, mündet.6. The device, in particular according to one of claims 1 to 5, characterized in that the germ filter (31) is multiple, in particular many times larger than the remaining cross section of the ventilation binding and that preferably the germ filter (31) with its ring seal (33) and The associated wall surface (32) penetrated by the ventilation duct (23) delimits a filter inlet chamber (25) into which the much smaller passage opening (28), in particular opposite the germ filter (31), opens. .7. Vorrichtung, insbesondere nach einem der Ansprüche 3 bis 6, dadurch gekennzeichnet, daß der Keimfilter (31) an seiner von der Wandungsfläche (32) abgekehrten Seite von einem fensterartigen Halterahmen (34) umgriffen ist, der vorzugsweise unmittelbar an der Wandungsfläche (32) befestigt, wie angeschweißt, geklebt o.dgl. ist und an welchem der Keimfilter (31) vorzugsweise mit derselben, beiderseits über seine Dicke vorstehenden Ringdichtung (33) wie an der Wandungsfläche (32) anliegt..7. Device, in particular according to one of claims 3 to 6, characterized in that the germ filter (31) is surrounded on its side facing away from the wall surface (32) by a window-like holding frame (34) which is preferably attached directly to the wall surface (32) , as welded, glued or the like. and on which the germ filter (31) preferably rests with the same ring seal (33) projecting on both sides over its thickness as against the wall surface (32). 8. Vorrichtung, insbesondere nach einem der Ansprüche 1 bis 7, dadurch gekennzeichnet, daß der Keimfilter (31) innerhalb eines Wirkstoff-Speichers (20) liegt und/oder an einer Wirkstoff-Austragpumpe (1), wie dem Gehäuse (2) einer handbetätigten Kolbenpumpe angeordnet ist, wobei der Keimfilter (31) vorzugsweise mit etwa konstanten Abständen an einer annähernd um die Mittelachse (35) des Austragkanales (10) gekrümmten Wandungsfläche (32) und/oder unmittelbar anschließend an einen über die Wandungsfläche (32) vorstehenden Befestigungsflansch (22) der Austragpumpe (1) angeordnet ist.8. The device, in particular according to one of claims 1 to 7, characterized in that the germ filter (31) lies within an active substance storage (20) and / or on an active substance discharge pump (1), such as the housing (2) Manually operated piston pump is arranged, wherein the germ filter (31) is preferably at approximately constant intervals on a wall surface (32) curved approximately around the central axis (35) of the discharge channel (10) and / or immediately afterwards on a fastening flange projecting beyond the wall surface (32) (22) of the discharge pump (1) is arranged. 9. Vorrichtung, insbesondere nach einem der Ansprüche 1 bis 8, dadurch gekennzeichnet, daß im Belüftungskanal (23) ein Belüftungsventil (24) und/oder im Austragkanal (11) ein Austrag-Ventil (12) vorgesehen ist und deaß vorzugsweise mindestens ein Ventil bei Ausgangsstellung der Austragpumpe (1) zwangsgeschlossen ist.9. The device, in particular according to one of claims 1 to 8, characterized in that in the ventilation channel (23) a ventilation valve (24) and / or in the discharge channel (11) a discharge valve (12) is provided and preferably at least one valve is closed when the discharge pump (1) is in the initial position.
EP85115117A 1985-02-01 1985-11-28 Delivery device for free-flowing media Expired - Lifetime EP0189549B1 (en)

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DE3503354 1985-02-01
DE19853503354 DE3503354A1 (en) 1985-02-01 1985-02-01 ACTIVE DISPENSER

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EP0189549A3 EP0189549A3 (en) 1987-08-19
EP0189549B1 EP0189549B1 (en) 1991-10-16

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Cited By (10)

* Cited by examiner, † Cited by third party
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FR2669379A1 (en) * 1990-11-21 1992-05-22 Promotion Rech Innovation Tec DOSING PUMP FOR LIQUID PRODUCTS.
EP0487412A1 (en) * 1990-11-21 1992-05-27 Societe De Promotion, Recherche Et Innovation Technologique Metering valve for liquids contained in a pressureless container
WO1994011115A1 (en) * 1992-11-11 1994-05-26 Tee Enterprises Limited An atomiser
US5727715A (en) * 1992-11-11 1998-03-17 Tee Enterprises Limited Pump type liquid dispensing apparatus with filter
US6082592A (en) * 1992-11-11 2000-07-04 The Enterprises Limited Carrier for a pump type atomiser
FR2762589A1 (en) * 1997-04-28 1998-10-30 Sofab DISTRIBUTION BOTTLE FOR LIQUID, CREAM OR GEL COMPRISING A DEVICE FOR FILTERING THE AIR ENTERING
WO1998048943A1 (en) * 1997-04-28 1998-11-05 Rexam Sofab Flask for dispensing liquid, cream or gel comprising a device for filtering incoming air
FR2781767A1 (en) 1998-07-31 2000-02-04 Valois Sa FLUID PRODUCT DISPENSING DEVICE
FR2781768A1 (en) 1998-08-03 2000-02-04 Valois Sa DEVICE FOR DISPENSING FLUID PRODUCT SUITABLE FOR AVOIDING CONTAMINATION OF THE PRODUCT CONTAINED IN THE CONTAINER
WO2001017690A1 (en) 1999-09-09 2001-03-15 Valois S.A. Improved pump for dispensing fluid product,and fluid product dispensing device comprising same

Also Published As

Publication number Publication date
EP0189549A3 (en) 1987-08-19
DE3503354A1 (en) 1986-08-07
EP0189549B1 (en) 1991-10-16
JPS61178570A (en) 1986-08-11
US4694976A (en) 1987-09-22
DE3584441D1 (en) 1991-11-21

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