EP0289876A2 - Cream dispenser with a container receiving the cream - Google Patents

Cream dispenser with a container receiving the cream Download PDF

Info

Publication number
EP0289876A2
EP0289876A2 EP88106383A EP88106383A EP0289876A2 EP 0289876 A2 EP0289876 A2 EP 0289876A2 EP 88106383 A EP88106383 A EP 88106383A EP 88106383 A EP88106383 A EP 88106383A EP 0289876 A2 EP0289876 A2 EP 0289876A2
Authority
EP
European Patent Office
Prior art keywords
container
cream
piston
cream dispenser
dispenser according
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
EP88106383A
Other languages
German (de)
French (fr)
Other versions
EP0289876B1 (en
EP0289876A3 (en
Inventor
Rolf A. Schulz
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.)
Individual
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to AT88106383T priority Critical patent/ATE78784T1/en
Publication of EP0289876A2 publication Critical patent/EP0289876A2/en
Publication of EP0289876A3 publication Critical patent/EP0289876A3/en
Application granted granted Critical
Publication of EP0289876B1 publication Critical patent/EP0289876B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • 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
    • B67D7/0227—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 an ejection plunger
    • 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
    • B05B11/02—Membranes or pistons acting on the contents inside the container, e.g. follower pistons

Definitions

  • the invention relates to a cream dispenser according to the preamble of claim 1.
  • Such cream dispensers can be used for pastes or creams.
  • Such a cream dispenser is known from DE-OS 32 35 171.
  • the piston of the known cream dispenser has rigid discs and flexible discs with lips for sealing. Furthermore, teeth are provided in the inner wall of the container and on the riser pipe, so that the movement of the piston in the container takes place only in a desired direction.
  • the construction of this piston is complicated. If the plunger is tightly fitted into the container for a good seal and relatively firm pasty creams are used, it has been shown that the plunger is very difficult. Furthermore, it has been shown that the seal cannot be reliably maintained if the container walls are inclined towards one another.
  • a piston of a cream dispenser which has a sealing ring made of rubber or a rubber-like elastic material on its outer circumferential surface.
  • This sealing ring can adapt to the inner wall of the container, even if the inner diameter of the container has slight variations according to the manufacture. In the case of a conically shaped container, the elasticity of the sealing ring is not sufficient to ensure a seal.
  • a cream dispenser that can be used in the medical field must have one-hand operation, and all parts of the container and cream dispenser must also be operated by the Federal Health Office for the respective cream approved material. As a result, the seal between the piston and the container wall by lips is no longer guaranteed to a sufficient degree.
  • the seal should remain effective even if the opposing parts of the container wall are not parallel to one another.
  • the cream dispenser 1 has a container 2.
  • the container 2 has a peripheral side wall 3 and a bottom 4.
  • the container narrows conically towards the bottom.
  • it can also have a side wall in which the mutually opposite regions are parallel to one another, it can have a barrel-shaped appearance or have another shape.
  • a lid 5 can be placed on the container 2.
  • the lid 5 can be screwed onto the container 2, as shown in the figure, or it can be put on or attached in some other way.
  • the lid 5 has an opening 6.
  • the opening 6 is provided with an extension as a guide 7 which extends into the interior of the container.
  • a hollow riser pipe 8 is guided through the opening 6.
  • the riser pipe 8 is designed such that it connects a container space formed by the container bottom 4, the container wall 2 and the lid 5 to the outside space.
  • a piston 9 is attached to the first end of the riser tube 8 projecting into the container space.
  • the piston 9 has an opening 10 which connects the interior of the riser pipe with the space between the piston 9 and the container bottom 4.
  • the piston can be bell-shaped on the side facing the container bottom 4, but it can also have a different shape.
  • the piston 9 must have a peripheral side wall 11.
  • the piston 9 has a shape which essentially corresponds to the inner shape of the container, the diameter taken over the side wall of the piston always being somewhat smaller than the inside diameter of the container at its narrowest point. As a result, the piston can be moved up and down easily at any height in the container. A gap remains between the piston side wall 11 and the container side wall 3.
  • a circumferential annular groove 12 is formed in the piston side wall 11.
  • annular groove 12 instead of the one annular groove 12, two or more annular grooves 12, 13, 14 can also be formed.
  • a circumferential ring 15, 16, 17 is inserted into each ring groove 12, 13, 14.
  • the rings 15, 16, 17 are slotted and elastic.
  • the extent of the rings 15, 16, 17 in their ring plane is chosen to be larger than the largest gap that can occur between the piston side wall 11 and the container side wall 3.
  • the rings 15, 16, 17 have a gap. In the relaxed state, its outer diameter is equal to or larger than the largest inner diameter of the container interior, and the annular gap is so wide that the rings 15, 16, 17 can be compressed to the smallest container inner diameter.
  • the ring grooves 12, 13, 14 are formed so deep in the piston side wall 11 that they can accommodate the rings 15, 16, 17 compressed to the smallest inside diameter of the container.
  • the rings 12, 13, 14 thus act as piston rings.
  • the rings are quasi disc-shaped with edges, so that the cross section is rectangular.
  • the rings can be slotted.
  • the rings are designed so that the separation point is formed by an oblique cut so that the beveled surfaces lie completely on one another in the compressed state.
  • the inclined planes slide on one another.
  • the rings are biased in the axial direction so that the planes sliding on each other are still on each other in any position. This ensures that, even with a widened ring, there is no gap through which the material to be pumped out could pass.
  • the rings 12, 13, 14 thus act as piston rings.
  • the cross section of the rings is rectangular.
  • the rings are not formed with a gap, but rather they are slotted and bent together in such a way that they are longer than the circumference of the ring in the relaxed state, for this the rings have to overlap somewhat at the slotted point.
  • the above Lapping is best carried out such that the overlapping ring parts are chamfered and arranged parallel to the container wall 3, as shown in Fig. 2.
  • the cream is prevented from passing through the annular gap. If the overlapping ring parts are not beveled, the associated ring groove must be made wider.
  • a hand rest 18 is attached to the second end of the riser tube 8 protruding from the container.
  • the hand rest 18 is provided with a channel 19 which connects the riser pipe 8 to an outlet opening 20.
  • the outlet opening 20 can optionally be provided with a closure (not shown).
  • the piston 9, the riser 8 and the hand rest 18 are arranged in such a way that a continuous connection between the space formed between the piston 9 and the container bottom 4 and the outside space is established, this connection can be made by the closure in its closed position be interrupted.
  • the container 2 is filled with the cream, enough space must remain under the upper edge of the container wall 3 that the piston 9 can be accommodated in this space. Then the lid 5 is fastened to the container 2 with the ascending pipe 8 provided with the piston 9 and the hand rest 18. The plunger 9 then rests on the surface of the cream. An embodiment can also be selected in which no cover 5 is provided. Then the piston 9 with the riser pipe 8 and the hand rest 18 is inserted into the open container 2.
  • the cream dispenser 1 prepared in this way is placed in a place convenient for removal.
  • the user presses the palm rest 18 with one hand and holds a spatula or the like with the other hand. under the outlet opening 20.
  • the pressure on the hand rest 18 is transferred through the riser pipe 8 and the piston 9 to the cream present in the space between the piston 9 and the base 4. Due to the pressure, the cream rises in the riser pipe 8, passes through the channel 19 and emerges from the outlet opening 20.
  • the cream is removed there.
  • the pressure on the cream also stops and no more cream emerges from the outlet opening 20. This pump-like actuation enables a very precise dosage of the cream to be removed.
  • the container is usually essentially circular in plan view, but other shapes can also be selected, such as an oval shape, an essentially square shape or the like.
  • the piston must then have a corresponding shape for each container shape, and the rings must be bent accordingly.
  • the cream dispenser can be operated with one hand, so that the second hand remains free for removing the cream.
  • All parts of the cream dispenser can also be made of the same material, such as polypropylene, which means that the requirements of the Federal Health Office can be met. Because of the good influence on the pressure on the cream, creams of very different consistency, from very liquid to very solid creams, can be handled with the cream dispenser.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Closures For Containers (AREA)
  • Containers And Packaging Bodies Having A Special Means To Remove Contents (AREA)
  • Coating Apparatus (AREA)

Abstract

Cream dispensers (1) of a conventional type have a container (2) and a piston (9) with a riser pipe (8). For removal, pressure is exerted on the piston (9) so that the cream emerges through the riser pipe (8). The seal between the piston (9) and a side wall (3) of the container is effected either by precise fitting or by sealing lips. A piston of this type cannot adapt to different container diameters. A cream dispenser is therefore to be provided, in which the container diameter varies with the height. The cream dispenser (1) according to the invention, with a container (2) receiving the cream, has a piston (9) which has on its outer circumferential surface (11) at least one ring (15, 16, 17) of variable outside diameter with an annular gap which is prestressed resiliently in such a way that it rests on the adjacent inside wall of the container. Cream dispensers of this type can be used for toothpaste or the like or for medical creams in the medical sector. <IMAGE>

Description

Die Erfindung betrifft einen Cremespender nach dem Oberbegriff des Anspruches 1. Derartige Cremespender können für Pasten oder Cremes benutzt werden.The invention relates to a cream dispenser according to the preamble of claim 1. Such cream dispensers can be used for pastes or creams.

Ein solcher Cremespender ist aus der DE-OS 32 35 171 bekannt. Der Kolben des bekannten Cremespenders weist starre Scheiben und flexible Scheiben mit Lippen zur Abdichtung auf. Des weiteren sind Zähne in der Innenwand des Behälters und an dem Steigrohr vorgesehen, so daß die Bewegung des Kolbens in dem Behälter nur in eine gewünschte Richtung stattfindet. Der Aufbau dieses Kolbens ist kompliziert. Wenn der Kolben zur guten Abdichtung eng in den Behälter eingepaßt ist und relativ feste pastöse Cremes verwandt werden, hat es sich gezeigt, daß der Kolben sehr schwer geht. Weiterhin hat sich gezeigt, daß die Abdichtung nicht zuverlässig aufrecht­erhalten werden kann, wenn die Behälterwände gegeneinander geneigt sind.Such a cream dispenser is known from DE-OS 32 35 171. The piston of the known cream dispenser has rigid discs and flexible discs with lips for sealing. Furthermore, teeth are provided in the inner wall of the container and on the riser pipe, so that the movement of the piston in the container takes place only in a desired direction. The construction of this piston is complicated. If the plunger is tightly fitted into the container for a good seal and relatively firm pasty creams are used, it has been shown that the plunger is very difficult. Furthermore, it has been shown that the seal cannot be reliably maintained if the container walls are inclined towards one another.

Aus der US-PS 28 15 994 ist ein Kolben eines Cremespenders be­kannt, der auf seiner äußeren umlaufenden Oberfläche einen Dichtungsring aus Gummi oder einem gummiähnlichen elastischen Material aufweist. Dieser Dichtungsring kann sich an die Innen­wand der Behälter anpassen, auch wenn die Innendurchmesser der Behälter herstellungsgemäß geringe Variationen aufweisen. Bei einem konisch geformten Behälter reicht die Elastizität des Dichtungsringes nicht aus, um eine Abdichtung zu gewährleisten.From US-PS 28 15 994 a piston of a cream dispenser is known which has a sealing ring made of rubber or a rubber-like elastic material on its outer circumferential surface. This sealing ring can adapt to the inner wall of the container, even if the inner diameter of the container has slight variations according to the manufacture. In the case of a conically shaped container, the elasticity of the sealing ring is not sufficient to ensure a seal.

Dabei muß beachtet werden, daß ein im medizinischen Bereich einsetzbarer Cremespender eine Einhandbedienung aufweisen muß, ebenfalls müssen alle Teile des Behälters und Cremespenders von dem Bundesgesundheitsamt für die jeweilige Creme zugelassenen Material hergestellt sein. Dadurch wird die Abdichtung zwischen dem Kolben und der Behälterwand durch Lippen nicht mehr in ausreichendem Maße gewährleistet.It must be noted that a cream dispenser that can be used in the medical field must have one-hand operation, and all parts of the container and cream dispenser must also be operated by the Federal Health Office for the respective cream approved material. As a result, the seal between the piston and the container wall by lips is no longer guaranteed to a sufficient degree.

Es ist daher Aufgabe der Erfindung, einen Cremespender der eingangs beschriebenen Art vorzusehen, bei dem die Abdichtung zwischen dem Kolben und der Behälterwand verbessert ist. Insbesondere soll die Abdichtung wirksam bleiben, auch wenn die sich gegenüberstehenden Teile der Behälterwand nicht parallel zueinander stehen.It is therefore an object of the invention to provide a cream dispenser of the type described in the opening paragraph, in which the seal between the piston and the container wall is improved. In particular, the seal should remain effective even if the opposing parts of the container wall are not parallel to one another.

Diese Aufgabe wird gelöst durch den Cremespender der eingangs beschriebenen Art, der nach dem kennzeichnenden Teil des Anspruches 1 ausgebildet ist.This object is achieved by the cream dispenser of the type described at the outset, which is designed according to the characterizing part of claim 1.

Weiterbildungen und bevorzugte Ausbildungsformen sind in den Unteransprüchen gekennzeichnet.Further training and preferred forms of training are characterized in the subclaims.

Der Cremespender gemäß der Erfindung wird in der Beschreibung von Ausführungsbeispielen anhand der Figuren näher erläutert. Von den Figuren zeigen:

  • Fig. 1 einen Schnitt durch eine Ausführungsform des Creme­spenders;
  • Fig. 2 eine Seitenansicht des Kolbens mit einer speziellen Ausführungsform des Ringes.
The cream dispenser according to the invention is explained in more detail in the description of exemplary embodiments with reference to the figures. From the figures show:
  • 1 shows a section through an embodiment of the cream dispenser.
  • Fig. 2 is a side view of the piston with a special embodiment of the ring.

Im folgenden werden Ausführungsformen des Cremespenders unter Bezugnahme auf die Figur beschrieben. Der Cremespender 1 weist einen Behälter 2 auf. Der Behälter 2 weist eine umlaufende Seitenwand 3 und einen Boden 4 auf. Aus fertigungstechnischen Gründen ist es bevorzugt, daß sich der Behälter zum Boden hin konisch verengt. Er kann jedoch auch eine Seitenwand aufweisen, bei der die einander gegenüber­stehenden Bereiche parallel zueinander sind, er kann ein tonnenförmiges Aussehen aufweisen oder eine andere Form haben.In the following, embodiments of the cream dispenser are described with reference to the figure. The cream dispenser 1 has a container 2. The container 2 has a peripheral side wall 3 and a bottom 4. For manufacturing reasons, it is preferred that the container narrows conically towards the bottom. However, it can also have a side wall in which the mutually opposite regions are parallel to one another, it can have a barrel-shaped appearance or have another shape.

Auf den Behälter 2 ist ein Deckel 5 aufsetz­bar. Der Deckel 5 kann auf den Behälter 2, wie in der Figur gezeigt ist, aufgeschraubt werden, oder er kann aufgesteckt werden oder auf eine andere Weise befestigt werden. Der Deckel 5 weist eine Öffnung 6 auf. Die Öffnung 6 ist mit einem Ansatz als Führung 7, die sich in das Behälterinnere erstreckt, versehen.A lid 5 can be placed on the container 2. The lid 5 can be screwed onto the container 2, as shown in the figure, or it can be put on or attached in some other way. The lid 5 has an opening 6. The opening 6 is provided with an extension as a guide 7 which extends into the interior of the container.

Durch die Öffnung 6 ist ein hohles Steigrohr 8 geführt. Das Steigrohr 8 ist derart ausgebildet, daß es einen durch den Behälterboden 4, die Behälterwand 2 und den Deckel 5 gebildeten Behälterraum mit dem Außenraum verbindet. An dem in den Behälterraum ragenden ersten Ende des Steigrohres 8 ist ein Kolben 9 angebracht. Der Kolben 9 weist eine Öffnung 10 auf, die das Innere des Steigrohres mit dem Raum zwischen dem Kolben 9 und dem Behälterboden 4 verbindet. Der Kolben kann, wie in Figur 1 gezeigt ist, auf der dem Behälterboden 4 zugewandten Seite glockenförmig ausgebildet sein, er kann jedoch auch eine andere Form aufweisen. Der Kolben 9 muß jedoch eine umlaufende Seitenwand 11 aufweisen.A hollow riser pipe 8 is guided through the opening 6. The riser pipe 8 is designed such that it connects a container space formed by the container bottom 4, the container wall 2 and the lid 5 to the outside space. A piston 9 is attached to the first end of the riser tube 8 projecting into the container space. The piston 9 has an opening 10 which connects the interior of the riser pipe with the space between the piston 9 and the container bottom 4. As shown in FIG. 1, the piston can be bell-shaped on the side facing the container bottom 4, but it can also have a different shape. However, the piston 9 must have a peripheral side wall 11.

Der Kolben 9 hat in der (nicht gezeigten) Draufsicht eine Form, die im wesentlichen der inneren Form des Behälters entspricht, dabei ist der über die Seitenwand des Kolbens genommene Durch­messer immer etwas kleiner als der lichte Durchmesser des Be­hälters an seiner engsten Stelle. Dadurch ist der Kolben bei jeder Höhe in dem Behälter leicht auf und ab bewegbar. Zwischen der Kolbenseitenwand 11 und der Behälterseitenwand 3 verbleibt jeweils ein Spalt.In the top view (not shown), the piston 9 has a shape which essentially corresponds to the inner shape of the container, the diameter taken over the side wall of the piston always being somewhat smaller than the inside diameter of the container at its narrowest point. As a result, the piston can be moved up and down easily at any height in the container. A gap remains between the piston side wall 11 and the container side wall 3.

In der Kolbenseitenwand 11 ist eine umlaufende Ringnut 12 ausgebildet.A circumferential annular groove 12 is formed in the piston side wall 11.

Anstelle der einen Ringnut 12 können auch zwei oder mehr Ringnuten 12, 13, 14 ausgebildet sein. Für eine praktische Anwendung im medizinischen Bereich hat es sich als vorteilhaft erwiesen, drei oder vier Ringnuten zu benutzen.Instead of the one annular groove 12, two or more annular grooves 12, 13, 14 can also be formed. For a practical application in the medical field, it has proven advantageous to use three or four ring grooves.

In jede Ringnut 12, 13, 14 ist ein umlaufender Ring 15, 16, 17 eingelegt. Die Ringe 15, 16, 17 sind geschlitzt und elastisch ausgebildet. Die Ausdehnung der Ringe 15, 16, 17 in ihrer Ringebene ist größer gewählt als der größte Spalt, der zwischen der Kolbenseitenwand 11 und der Behälterseitenwand 3 auftreten kann. Die Ringe 15, 16, 17 weisen einen Spalt auf. Im entspannten Zustand ist ihr äußerer Durchmesser gleich oder größer dem Größten Innendurchmesser des Behälterinneren, und der Ringspalt ist so breit ausgebildet, daß die Ringe 15, 16, 17 auf den kleinsten Behälterinnendurchmesser zusammendrückbar sind. Die Ringnuten 12, 13, 14 sind so tief in der Kolbenseitenwand 11 ausgebildet, daß sie die auf den kleinsten Behälterinnendurchmesser zusammengedrückten Ringe 15, 16, 17 aufnehmen können. Die Ringe 12, 13, 14 wirken also als Kolbenringe. Die Ringe sind aus herstellungstechnischen Gründen quasi scheibenförmig mit Kanten ausgebildet, so daß der Querschnitt rechteckig ist.
Die Ringe können geschlitzt ausgebildet sein. Nach der in Fig. 2 gezeigten Ausführungsform sind die Ringe so ausgebildet, daß die Trennstelle durch einen Schrägschnitt so begildet ist, daß die angeschrägten Flächen im zusammengedrückten Zustand vollständig aufeinander liegen. Im entspannten oder teilweise entspannten Zustand, bei dem jeder Ring also einen Durchmesser einnimmt, der größer ist als der des Kolbens, gleiten die schrägen Ebenen aufeinander. Die Ringe sind in axialer Richtung so vorgespannt, daß die aufeinander gleitenden Ebenen in jeder Stellung noch aufeinander liegen. Dadurch wird erreicht, daß auch bei einem aufgeweiteten Ring kein Spalt entsteht, durch den das auszupumpende Gut hindurchtreten könnte.A circumferential ring 15, 16, 17 is inserted into each ring groove 12, 13, 14. The rings 15, 16, 17 are slotted and elastic. The extent of the rings 15, 16, 17 in their ring plane is chosen to be larger than the largest gap that can occur between the piston side wall 11 and the container side wall 3. The rings 15, 16, 17 have a gap. In the relaxed state, its outer diameter is equal to or larger than the largest inner diameter of the container interior, and the annular gap is so wide that the rings 15, 16, 17 can be compressed to the smallest container inner diameter. The ring grooves 12, 13, 14 are formed so deep in the piston side wall 11 that they can accommodate the rings 15, 16, 17 compressed to the smallest inside diameter of the container. The rings 12, 13, 14 thus act as piston rings. For technical reasons, the rings are quasi disc-shaped with edges, so that the cross section is rectangular.
The rings can be slotted. According to the embodiment shown in Fig. 2, the rings are designed so that the separation point is formed by an oblique cut so that the beveled surfaces lie completely on one another in the compressed state. In the relaxed or partially relaxed state, with each ring taking on a diameter larger than that of the piston, the inclined planes slide on one another. The rings are biased in the axial direction so that the planes sliding on each other are still on each other in any position. This ensures that, even with a widened ring, there is no gap through which the material to be pumped out could pass.

Die Ringe 12, 13, 14 wirken also als Kolbenringe. Aus herstel­lungstechnischen Gründen und zum Abstreifen der Creme von der Behälterseitenwand sind die Ringe in ihrem Querschnitt recht­eckig ausgebildet. Nach einer anderen Ausführungsform sind die Ringe nicht mit einem Spalt ausgebildet, sondern sie sind geschlitzt und derart zusammengebogen, daß sie länger sind als der Umfang des Ringes im entspannten Zustand, dazu müssen die Ringe an der geschlitzten Stelle etwas überlappen. Die Über­ lappung wird am besten derartig ausgeführt, daß die überlappen­den Ringteile angeschrägt und parallel zu der Behälterwand 3 angeordnet sind, wie in Fig. 2 gezeigt ist. Bei dieser Ausführungsform wird verhindert, daß die Creme durch den Ringspalt tritt. Wenn die überlappenden Ringteile nicht angeschrägt sind, muß die zugehörige Ringnut jedoch breiter ausgeführt werden.The rings 12, 13, 14 thus act as piston rings. For reasons of production technology and for stripping off the cream from the side wall of the container, the cross section of the rings is rectangular. According to another embodiment, the rings are not formed with a gap, but rather they are slotted and bent together in such a way that they are longer than the circumference of the ring in the relaxed state, for this the rings have to overlap somewhat at the slotted point. The above Lapping is best carried out such that the overlapping ring parts are chamfered and arranged parallel to the container wall 3, as shown in Fig. 2. In this embodiment, the cream is prevented from passing through the annular gap. If the overlapping ring parts are not beveled, the associated ring groove must be made wider.

An dem zweiten, aus dem Behälter herausragenden Ende des Steigrohres 8 ist in einer bevorzugten Ausführungsform eine Handauflage 18 angebracht. Die Handauflage 18 ist mit einem Kanal 19 versehen, der das Steigrohr 8 mit einer Auslaßöffnung 20 verbindet. Die Auslaßöffnung 20 kann wahlweise mit einem Verschluß (nicht gezeigt) versehen werden. Der Kolben 9, das Steigrohr 8 und die Handauflage 18 sind derartig zueinander angeordnet, daß eine durchgehende Verbindung zwischen dem Raum, der zwischen dem Kolben 9 und dem Behälterboden 4 gebildet ist, und dem Außenraum hergestellt ist, diese Verbindung kann durch den Verschluß in seiner geschlossenen Stellung unterbrochen sein.In a preferred embodiment, a hand rest 18 is attached to the second end of the riser tube 8 protruding from the container. The hand rest 18 is provided with a channel 19 which connects the riser pipe 8 to an outlet opening 20. The outlet opening 20 can optionally be provided with a closure (not shown). The piston 9, the riser 8 and the hand rest 18 are arranged in such a way that a continuous connection between the space formed between the piston 9 and the container bottom 4 and the outside space is established, this connection can be made by the closure in its closed position be interrupted.

Zur Benutzung wird der Behälter 2 mit der Creme angefüllt, dabei muß unter dem oberen Rand der Behälterwand 3 noch soviel Platz verbleiben, daß der Kolben 9 in diesem Platz aufnehmbar ist. Dann wird der Deckel 5 mit dem mit dem Kolben 9 und der Handauflage 18 versehenen Steigrohr 8 auf dem Behälter 2 befestigt. Danach ruht der Kolben 9 auf der Oberfläche der Creme. Es kann auch eine Ausführungsform gewählt werden, in der kein Deckel 5 vorgesehen ist. Dann wird der Kolben 9 mit dem Steigrohr 8 und der Handauflage 18 in den offenen Behälter 2 eingeführt.To use the container 2 is filled with the cream, enough space must remain under the upper edge of the container wall 3 that the piston 9 can be accommodated in this space. Then the lid 5 is fastened to the container 2 with the ascending pipe 8 provided with the piston 9 and the hand rest 18. The plunger 9 then rests on the surface of the cream. An embodiment can also be selected in which no cover 5 is provided. Then the piston 9 with the riser pipe 8 and the hand rest 18 is inserted into the open container 2.

Der so vorbereitete Cremespender 1 wird an einen zur Entnahme günstigen Platz gestellt. Zur Entnahme drückt der Benutzer mit einer Hand auf die Handauflage 18. Mit der anderen Hand hält er einen Spachtel o.ä. unter die Auslaßöffnung 20. Der Druck auf die Handauflage 18 wird durch das Steigrohr 8 und den Kolben 9 auf die in dem Raum zwischen dem Kolben 9 und dem Boden 4 vorhandene Creme übertragen. Durch den Druck steigt die Creme in dem Steigrohr 8 auf, geht durch den Kanal 19 und tritt aus der Auslaßöffnung 20 aus. Dort wird die Creme entnommen. Sowie der Benutzer keinen Druck mehr auf die Handauflage 18 ausübt, hört auch der Druck auf die Creme auf, und es tritt keine Creme mehr aus der Auslaßöffnung 20 heraus. Durch diese pumpenartige Betätigung ist eine sehr genaue Dosierung der zu entnehmenden Creme möglich.The cream dispenser 1 prepared in this way is placed in a place convenient for removal. To remove it, the user presses the palm rest 18 with one hand and holds a spatula or the like with the other hand. under the outlet opening 20. The pressure on the hand rest 18 is transferred through the riser pipe 8 and the piston 9 to the cream present in the space between the piston 9 and the base 4. Due to the pressure, the cream rises in the riser pipe 8, passes through the channel 19 and emerges from the outlet opening 20. The cream is removed there. As soon as the user no longer exerts pressure on the palm rest 18, the pressure on the cream also stops and no more cream emerges from the outlet opening 20. This pump-like actuation enables a very precise dosage of the cream to be removed.

Je mehr Creme entnommen ist, desto mehr nähert sich der Kolben 9 dem Behälterboden 4, dabei streifen die Ringe 15, 16, 17 die Creme sehr effektiv von der Behälterwand 3 ab, so daß im wesentlichen keine Creme an der Wand haften bleibt. Wenn der Innendurchmesser der Behälterwand zum Boden 4 hin abnimmt, passen sich die Ringe dem verringerten Durchmesser an, indem der Ringspalt zusammengedrückt wird oder indem bei überlappenden Ringenden der Überlappungsbereich vergrößert wird. Damit ist bei unterschiedlichen Behälterdurchmesser immer eine einwandfreie Abdichtung möglich.The more cream is removed, the closer the piston 9 approaches the container bottom 4, the rings 15, 16, 17 scraping the cream very effectively from the container wall 3, so that essentially no cream adheres to the wall. If the inside diameter of the container wall decreases towards the bottom 4, the rings adapt to the reduced diameter by compressing the annular gap or by increasing the overlap area when the ring ends overlap. A perfect seal is always possible with different container diameters.

Üblicherweise ist der Behälter in der Draufsicht im wesent­lichen kreisförmig ausgebildet, es können aber auch andere Formen gewählt werden, wie eine ovale Form, eine im wesent­lichen quadratische Form o.ä. Für jede Behälterform muß dann der Kolben eine entsprechende Form aufweisen, und die Ringe müssen entsprechend gebogen werden. Bei der so gewählten Ausführungsform kann der Cremespender mit einer Hand bedient werden, dadurch bleibt die zweite Hand zur Entnahme der Creme frei. Ebenfalls können alle Teile des Cremespenders aus dem gleichen Material, etwa Polypropylen, hergestellt werden, womit die Auflagen des Bundgesgesundheitsamtes erfüllbar sind. Wegen der guten Beeinflussung des Druckes auf die Creme können Cremes sehr unterschiedlicher Konsistenz, von sehr flüssigen bis zu sehr festen Cremes, mit dem Cremespender gehandhabt werden.The container is usually essentially circular in plan view, but other shapes can also be selected, such as an oval shape, an essentially square shape or the like. The piston must then have a corresponding shape for each container shape, and the rings must be bent accordingly. In the embodiment chosen in this way, the cream dispenser can be operated with one hand, so that the second hand remains free for removing the cream. All parts of the cream dispenser can also be made of the same material, such as polypropylene, which means that the requirements of the Federal Health Office can be met. Because of the good influence on the pressure on the cream, creams of very different consistency, from very liquid to very solid creams, can be handled with the cream dispenser.

Claims (10)

1. Cremespender
mit einem die Creme aufnehmenden Behälter (2),
mit einem Boden (4) und einer Seitenwand (3),
einem Steigrohr (8) mit einem ersten in den Behälter (2) ein­führbaren Ende und einem zweiten einen Auslaß (20) aufnehmenden Ende
und einem an dem Steigrohr (8) angeordneten Kolben (9) mit einem Dichtelement (12, 13, 14, 15, 16, 17) zum Herausdrücken von zwischen dem Behälterboden (4) und dem Kolben (9)
vorgesehener Creme,
dadurch gekennzeichnet,
daß der Kolben (9) auf seiner äußeren umlaufenden Oberfläche (11) mindestens einen Ring (15, 16, 17) veränderbaren Außen­durchmessers mit einem Ringspalt aufweist, der federnd so vor­gespannt ist, daß er an der angrenzenden Behälterinnenwand anliegt.1. Cream dispenser
with a container (2) holding the cream,
with a bottom (4) and a side wall (3),
a riser pipe (8) with a first end insertable into the container (2) and a second end receiving an outlet (20)
and a piston (9) arranged on the riser pipe (8) with a sealing element (12, 13, 14, 15, 16, 17) for pressing out between the container bottom (4) and the piston (9)
provided cream,
characterized,
that the piston (9) on its outer circumferential surface (11) has at least one ring (15, 16, 17) of variable outer diameter with an annular gap which is resiliently biased so that it abuts the adjacent inner wall of the container. 2. Cremespender nach Anspruch 1,
dadurch gekennzeichnet,
daß der Behälter (2) nach unten hin konisch zuläuft.2. Cream dispenser according to claim 1,
characterized,
that the container (2) tapers downwards. 3. Cremespender nach Anspruch 1 oder 2,
dadurch gekennzeichnet,
daß ein Deckel (5) auf den Behälter (2) aufsetzbar ist, der eine Öffnung (6) zum Führen des Steigrohres (8) aufweist.3. Cream dispenser according to claim 1 or 2,
characterized,
that a lid (5) can be placed on the container (2), which has an opening (6) for guiding the riser pipe (8). 4. Cremespender nach Anspruch 3,
dadurch gekennzeichnet,
daß der Deckel (5) aufschraubbar ist.4. Cream dispenser according to claim 3,
characterized,
that the cover (5) can be screwed on. 5. Cremespender nach einem der Ansprüche 1 bis 4,
dadurch gekennzeichnet,
daß der Kolben (9) eine Ringnut (12, 13, 14) zum Aufnehmen des Ringes (15, 16, 17) aufweist.5. Cream dispenser according to one of claims 1 to 4,
characterized,
that the piston (9) has an annular groove (12, 13, 14) for receiving the ring (15, 16, 17). 6. Cremespender nach einem der Ansprüche 1 bis 5,
dadurch gekennzeichnet,
daß die beiden Enden des Ringes (15, 16, 17) einander über­lappen und der Ring so federnd vorgespannt ist, daß er an der angrenzenden Behälterinnenwand anliegt.6. cream dispenser according to one of claims 1 to 5,
characterized,
that the two ends of the ring (15, 16, 17) overlap each other and the ring is resiliently biased so that it abuts the adjacent inner wall of the container. 7. Cremespender nach einem der Ansprüche 1 bis 6,
dadurch gekennzeichnet,
daß der Ringquerschnitt rechteckig ausgebildet ist.7. Cream dispenser according to one of claims 1 to 6,
characterized,
that the ring cross section is rectangular. 8. Cremespender nach einem der Ansprüche 1 bis 7,
dadurch gekennzeichnet,
daß das Steigrohr (8) an seiner dem Kolben (9) abgewandten Seite eine Handauflage (18) aufweist.8. Cream dispenser according to one of claims 1 to 7,
characterized,
that the riser pipe (8) has a hand rest (18) on its side facing away from the piston (9). 9. Cremespender nach Anspruch 8,
dadurch gekennzeichnet,
daß der Auslaß durch die Handauflage (18) bis zu dem Rand der Handauflage (18) zu einem verschließbaren Auslaß (20) geführt ist.9. Cream dispenser according to claim 8,
characterized,
that the outlet is guided through the hand rest (18) to the edge of the hand rest (18) to a closable outlet (20). 10. Cremespender nach einem der Ansprüche 1 bis 9,
dadurch gekennzeichnet,
daß der Behälter (2), das Steigrohr (8), der Kolben (9) und die Handauflage (18) aus dem gleichen Material hergestellt sind.10. Cream dispenser according to one of claims 1 to 9,
characterized,
that the container (2), the riser pipe (8), the piston (9) and the hand rest (18) are made of the same material.
EP88106383A 1987-05-08 1988-04-21 Cream dispenser with a container receiving the cream Expired - Lifetime EP0289876B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT88106383T ATE78784T1 (en) 1987-05-08 1988-04-21 CREAM DISPENSER WITH A CREAM RETAINER.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3715459 1987-05-08
DE3715459A DE3715459C1 (en) 1987-05-08 1987-05-08 Cream dispenser with a container holding the cream

Publications (3)

Publication Number Publication Date
EP0289876A2 true EP0289876A2 (en) 1988-11-09
EP0289876A3 EP0289876A3 (en) 1989-12-06
EP0289876B1 EP0289876B1 (en) 1992-07-29

Family

ID=6327144

Family Applications (1)

Application Number Title Priority Date Filing Date
EP88106383A Expired - Lifetime EP0289876B1 (en) 1987-05-08 1988-04-21 Cream dispenser with a container receiving the cream

Country Status (5)

Country Link
EP (1) EP0289876B1 (en)
JP (1) JPS63296864A (en)
AT (1) ATE78784T1 (en)
DE (2) DE3715459C1 (en)
ES (1) ES2033994T3 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2884089A1 (en) * 2013-12-10 2015-06-17 Robert Bosch Gmbh Hydraulic coupler
CN107352130A (en) * 2017-08-18 2017-11-17 沈阳华晨塑料制品有限公司 A kind of telescopic piston oil suction disk and grease tank

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CZ20013837A3 (en) * 1999-04-22 2002-07-17 Nvb International Device comprising combination of a chamber and a piston
JP5256064B2 (en) * 2009-01-29 2013-08-07 ヤマハ発動機株式会社 Solder supply device and printing device
DE202013103007U1 (en) * 2013-07-08 2014-10-10 Slawomir Baranski Dispenser for dispensing liquid to pasty masses

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1714482A (en) * 1927-05-28 1929-05-21 Schmuziger Willy Discharging device for paints and the like
FR805352A (en) * 1936-02-10 1936-11-18 Extensible segment indifferent to wear and exerting ariable pressure on the cylinder with compression
US3337092A (en) * 1965-02-18 1967-08-22 Atkins Herbert Ashley Dispensers

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2815994A (en) * 1955-03-07 1957-12-10 Aaron H Lippman Self-adjusting piston for soap dispenser
US4487341A (en) * 1981-10-01 1984-12-11 Colgate-Palmolive Company Dispenser for dispensing creams and especially self-foaming gels

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1714482A (en) * 1927-05-28 1929-05-21 Schmuziger Willy Discharging device for paints and the like
FR805352A (en) * 1936-02-10 1936-11-18 Extensible segment indifferent to wear and exerting ariable pressure on the cylinder with compression
US3337092A (en) * 1965-02-18 1967-08-22 Atkins Herbert Ashley Dispensers

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2884089A1 (en) * 2013-12-10 2015-06-17 Robert Bosch Gmbh Hydraulic coupler
CN107352130A (en) * 2017-08-18 2017-11-17 沈阳华晨塑料制品有限公司 A kind of telescopic piston oil suction disk and grease tank

Also Published As

Publication number Publication date
EP0289876B1 (en) 1992-07-29
ATE78784T1 (en) 1992-08-15
JPS63296864A (en) 1988-12-02
DE3873154D1 (en) 1992-09-03
ES2033994T3 (en) 1993-04-01
EP0289876A3 (en) 1989-12-06
DE3715459C1 (en) 1988-10-20

Similar Documents

Publication Publication Date Title
EP0351574B1 (en) Removable pipette tip shaped as a container adapted to the shape of a receiving piece, especially a tapered pipette end
EP0109487B1 (en) Twin container for storing two fluids separately
CH653639A5 (en) ONE-PIECE HINGE PLASTIC.
DE10206207B4 (en) Kuchenteigspender
EP0915743B1 (en) Device for squeezing flowable material out of a tubular bag
DE1240504B (en) Coupling for connecting filter elements
DE2923379A1 (en) BOTTLE CAP
DE2211109A1 (en) Closure and method of sealing a container
EP0190388B1 (en) Squeeze connector
DE2507823C3 (en) Packaging unit consisting of a bracket and bottle-like containers
DE7821178U1 (en) Housing to protect the junction of elongated objects, in particular to protect a cable splice
DE1254063B (en) Closure of a container made of plastic by means of a lid that is also made of plastic
DE3334956C2 (en) Household appliance for pressing garlic cloves in particular
EP0289876B1 (en) Cream dispenser with a container receiving the cream
EP1670692B1 (en) Container
DE3546186A1 (en) DEVICE FOR HARDING THE ROTATION OF TWO IN THE ESSENTIAL COAXIAL, COMPONENTLY ROTATABLE PARTS
CH619665A5 (en) Container with lid
DE2462123A1 (en) AUTOMATIC LOCKING FOR A CONTAINER WITH LIQUID, PASTOES OR FOAM-SHAPED FILLING WHEN OUT
DE8518074U1 (en) One-piece, resealable litter lock
DE2240086C3 (en) Elastic sealing body for moisture-proof electrical installation devices
DE19613035A1 (en) Hypodermic syringe finger grip
DE2845072A1 (en) Screw plug with sealing flanges - has head with annular groove below head and concentric ring-form sealing ridges
DE2904290A1 (en) LOCKING ARRANGEMENT
DE3347843A1 (en) Multi-component cartridge
DE4406162A1 (en) Self closing cap for dispenser of viscous material

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A2

Designated state(s): AT BE CH DE ES FR GB IT LI NL SE

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

AK Designated contracting states

Kind code of ref document: A3

Designated state(s): AT BE CH DE ES FR GB IT LI NL SE

17P Request for examination filed

Effective date: 19891213

17Q First examination report despatched

Effective date: 19910320

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AT BE CH DE ES FR GB IT LI NL SE

REF Corresponds to:

Ref document number: 78784

Country of ref document: AT

Date of ref document: 19920815

Kind code of ref document: T

ET Fr: translation filed
REF Corresponds to:

Ref document number: 3873154

Country of ref document: DE

Date of ref document: 19920903

GBT Gb: translation of ep patent filed (gb section 77(6)(a)/1977)
ITF It: translation for a ep patent filed

Owner name: SAIC BREVETTI S.R.L.

REG Reference to a national code

Ref country code: ES

Ref legal event code: FG2A

Ref document number: 2033994

Country of ref document: ES

Kind code of ref document: T3

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed
PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: AT

Payment date: 19940421

Year of fee payment: 7

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: SE

Payment date: 19940422

Year of fee payment: 7

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: BE

Payment date: 19940506

Year of fee payment: 7

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: CH

Payment date: 19940519

Year of fee payment: 7

EAL Se: european patent in force in sweden

Ref document number: 88106383.8

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: AT

Effective date: 19950421

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SE

Effective date: 19950422

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LI

Effective date: 19950430

Ref country code: CH

Effective date: 19950430

Ref country code: BE

Effective date: 19950430

BERE Be: lapsed

Owner name: SCHULZ ROLF A.

Effective date: 19950430

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

EUG Se: european patent has lapsed

Ref document number: 88106383.8

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 19960409

Year of fee payment: 9

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: NL

Payment date: 19960430

Year of fee payment: 9

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 19970319

Year of fee payment: 10

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Effective date: 19970421

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: ES

Payment date: 19970430

Year of fee payment: 10

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: NL

Effective date: 19971101

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 19970421

NLV4 Nl: lapsed or anulled due to non-payment of the annual fee

Effective date: 19971101

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: ES

Free format text: LAPSE BECAUSE OF EXPIRATION OF PROTECTION

Effective date: 19980422

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 19980424

Year of fee payment: 11

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Free format text: THE PATENT HAS BEEN ANNULLED BY A DECISION OF A NATIONAL AUTHORITY

Effective date: 19980430

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20000201

REG Reference to a national code

Ref country code: ES

Ref legal event code: FD2A

Effective date: 20000301

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20050421