EP0516644B1 - Feeding bottle - Google Patents
Feeding bottle Download PDFInfo
- Publication number
- EP0516644B1 EP0516644B1 EP91903377A EP91903377A EP0516644B1 EP 0516644 B1 EP0516644 B1 EP 0516644B1 EP 91903377 A EP91903377 A EP 91903377A EP 91903377 A EP91903377 A EP 91903377A EP 0516644 B1 EP0516644 B1 EP 0516644B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- bottle
- micropores
- bottle body
- feeding
- air
- 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.)
- Expired - Lifetime
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- 239000007788 liquid Substances 0.000 claims abstract description 7
- 239000003570 air Substances 0.000 claims abstract 2
- 239000012080 ambient air Substances 0.000 claims abstract 2
- 238000000034 method Methods 0.000 claims description 10
- 238000007664 blowing Methods 0.000 claims description 4
- 238000004519 manufacturing process Methods 0.000 claims description 4
- 229920002994 synthetic fiber Polymers 0.000 claims 1
- 230000035622 drinking Effects 0.000 description 8
- 239000004417 polycarbonate Substances 0.000 description 4
- 229920000515 polycarbonate Polymers 0.000 description 4
- 239000011148 porous material Substances 0.000 description 4
- 235000021056 liquid food Nutrition 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 241001122767 Theaceae Species 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 2
- 239000012528 membrane Substances 0.000 description 2
- 239000004033 plastic Substances 0.000 description 2
- 230000009747 swallowing Effects 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 230000001419 dependent effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 235000013305 food Nutrition 0.000 description 1
- 230000037406 food intake Effects 0.000 description 1
- 235000012631 food intake Nutrition 0.000 description 1
- 239000012982 microporous membrane Substances 0.000 description 1
- 235000021395 porridge Nutrition 0.000 description 1
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Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61J—CONTAINERS SPECIALLY ADAPTED FOR MEDICAL OR PHARMACEUTICAL PURPOSES; DEVICES OR METHODS SPECIALLY ADAPTED FOR BRINGING PHARMACEUTICAL PRODUCTS INTO PARTICULAR PHYSICAL OR ADMINISTERING FORMS; DEVICES FOR ADMINISTERING FOOD OR MEDICINES ORALLY; BABY COMFORTERS; DEVICES FOR RECEIVING SPITTLE
- A61J9/00—Feeding-bottles in general
- A61J9/04—Feeding-bottles in general with means for supplying air
Definitions
- the invention relates to a suction bottle with a bottle body which is provided in the region of its bottom with a microporous air inflow device which allows outside air to flow in, but which prevents liquid bottle content from escaping.
- suction bottles are used for the administration of liquid food, such as tea or porridge, to infants and young children, and for this purpose they have a teat in the ready-to-use state, which is clamped onto the bottle neck, for example with the aid of a screw cap.
- liquid food such as tea or porridge
- suction bottles there is the problem that when the contents are sucked by the suction device, a negative pressure is created in the bottle, which often significantly impairs the drinking process.
- it is therefore necessary to ensure that the air enters the inside of the bottle which is usually done by interrupting the drinking process so that air can get into the inside of the bottle through the teat. Of course, this disrupts food intake. Accordingly, solutions have already been proposed (cf., for example, US Pat.
- a suction bottle of the type specified is finally known, in which a screw cap is also attached to the lower end of the suction bottle to one with this screw cap
- Microporous membrane attached to the bottom open bottle body as a base plate. With regard to its pores, this micro-pore membrane is designed in such a way that it prevents liquid from escaping but allows air to enter.
- the membrane is in particular enclosed between two grid plates as support elements, and the air inflow device thus formed is thus relatively complicated and expensive, and there is also the disadvantage that cleaning is difficult.
- the thread formation with the screw cap means a substantial additional structural effort, so that such a suction bottle can hardly be produced economically.
- the suction bottle according to the invention of the type mentioned at the outset is characterized in that the micropores are provided directly in the bottle body in the region of the base and the base is formed in one piece with the rest of the bottle body.
- the invention takes advantage of the possibilities of modern laser technology with which different materials, such as Polycarbonate, from which the bottle body is made, for example, can be drilled with holes whose dimensions are so small that they prevent the passage of liquid molecules, such as water molecules, but allow the passage of air molecules.
- the invention also relates to a method for producing a feeding bottle as stated above, and this method is characterized according to the invention in that after the bottle body is made of plastic, for example in a blowing process, the micropores in the bottom area are burned in with the aid of a laser beam.
- a sufficiently high-energy laser in particular a CO2 laser, is preferably used to burn in the micropores.
- micropores in the bottle body can be attached both in the bottom and in its side wall adjacent to the bottom, so that when using the feeding bottle, when drinking, the pressure compensation air can enter the inside of the bottle at the end of the bottle remote from the teat.
- the desired pressure equalization and for the manufacture of the feeding bottle if the micropores are only provided in the bottom of the bottle body.
- the micropores are provided only in an inwardly curved central zone of the bottom of the bottle body.
- the inward curvature increases the overall stability of the bottle bottom, so that none of the cross-sectional shape and thus the function of the Deformation of the bottle body in the region of the bottom which impairs micropores is possible, and on the other hand the micropores are also well protected against soiling because they are at a distance from the base when the bottle is parked.
- the suction bottle shown in FIG. 1 in its complete configuration consists in a conventional manner of a bottle body 1, which is closed at the bottom by a one-piece bottom 2.
- This bottle body 1 can be produced, for example, in a conventional blowing process from a plastic, such as polycarbonate.
- a screw cap 3 On the open top of the bottle body 1, which is not visible in the drawing, a screw cap 3 is screwed on in the manner of a union nut, with which a teat 4 can be attached to the bottle body 1.
- the bottom is to allow air to enter the inside of the bottle when drinking with such a feeding bottle 2 of the bottle body 1 are provided with micropores 5 in the form of very fine bores, which are provided, for example, in a pattern of concentric circles or radial rays in an inwardly curved central zone 6 of the base 2 of the bottle body 1.
- micropores 5 in the form of very fine bores, which are provided, for example, in a pattern of concentric circles or radial rays in an inwardly curved central zone 6 of the base 2 of the bottle body 1.
- the diameter of the micropores 5 is so small that water and other liquid food cannot pass through the micropores 5 due to the surface tension, i.e. there is also no capillary action, but air can enter the inside of the bottle under the vacuum created by sucking out the contents of the bottle. It should also be noted that the pore size is such that the pores are not blocked by the contents of the bottle. It is then important that the air inlet for pressure equalization takes place in the area of the bottle base 2, specifically in the base 2 itself and / or in the adjacent side wall area, as indicated in Fig. 2 at 5 ', i.e. the air entry is as far away from the teat 4 as possible to prevent the child from swallowing the incoming air while drinking.
- the number of micropores 5 and 5 ' is dimensioned such that, in the case of a negative pressure, which can be caused by small children when drinking, a corresponding pressure equalization is made possible by the air inlet, i.e. as much volume per unit of time the infant can suck, so much volume of air per unit of time should be able to enter the bottle.
- the total cross-sectional area of the micropores 5 and 5 ', and accordingly the number of micropores depends on this. In this connection, it should be mentioned that the arrangement of the micropores 5 is illustrated only very schematically in the representation of FIG. 3, and that, as a rule, significantly more micropores 5 than shown are to be provided in order to ensure sufficient air entry.
- the size of the micropores 5 or 5 'can be dependent on the bottle material used and the liquid food for which the bottle is intended (either for thicker, mushy food or for tea etc.) can be determined.
- the micropores 5 and 5 'can have a round cross section with a diameter of a few microns, up to about 50 microns or slightly above, with a bottom thickness of 1-1.5 mm (bottle body made of polycarbonate).
- micropores 5 can be similar to a cylindrical to conical bore.
- a micropore 5 is shown which is conical in longitudinal or axial section and which has a larger diameter on the outside 8 of the bottle, e.g. in the range of 50 ⁇ m to 100 ⁇ m than on the inside 9 where the diameter e.g. can be about 5 microns.
- the bottle body 1 of which consisted of polycarbonate with a wall thickness of approximately 1 mm, and in which approximately 150 to 200 micropores with a conical shape according to FIG. 4, with an inside diameter of 3 ⁇ m to 7 ⁇ m and an outside diameter of 50 ⁇ m to 100 ⁇ m, were baked in the bottom area.
- the micropores 5 'in FIG. 2 only in the side wall of the bottle body 1, approximately in 1 cm to a height of 2 cm above the floor 2 or the stand 7.
- a sharply focused beam of a high-power laser in particular a CO2 laser, is used, with which the material of the previously e.g. bottle body 1 produced in a blowing process is melted or evaporated.
- a laser with a power of a few 100 mJ or a few J can be used, it also being possible to burn in several micropores 5 or 5 'at the same time (for example with the aid of a beam splitter installed in the beam path).
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- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Details Of Rigid Or Semi-Rigid Containers (AREA)
- Containers Having Bodies Formed In One Piece (AREA)
- Investigating Or Analysing Materials By Optical Means (AREA)
- Exhaust-Gas Circulating Devices (AREA)
- External Artificial Organs (AREA)
- Filling Of Jars Or Cans And Processes For Cleaning And Sealing Jars (AREA)
- Crystals, And After-Treatments Of Crystals (AREA)
- Manipulator (AREA)
- Massaging Devices (AREA)
Abstract
Description
Die Erfindung betrifft eine Saugflasche mit einem Flaschenkörper, der im Bereich seines Bodens mit einer das Einströmen von Außenluft ermöglichenden, das Austreten eines flüssigen Flascheninhalts jedoch hintanhaltenden Mikroporen-Lufteinströmeinrichtung versehen ist.The invention relates to a suction bottle with a bottle body which is provided in the region of its bottom with a microporous air inflow device which allows outside air to flow in, but which prevents liquid bottle content from escaping.
Derartige Saugflaschen dienen zur Verabreichung von flüssiger Nahrung, wie Tee oder Brei, an Säuglinge und Kleinkinder, und sie weisen hiefür im gebrauchsbereiten Zustand einen Sauger auf, der z.B. mit Hilfe einer Schraubkappe am Flaschenhals festgeklemmt wird. Bei Verwendung dieser Saugflaschen besteht das Problem, daß beim Saugen des Inhalts durch den Sauger ein Unterdruck in der Flasche entsteht, der den Trinkvorgang oft ganz wesentlich beeinträchtigt. Zum Druckausgleich muß daher für einen laufenden Lufteinlaß in das Flascheninnere gesorgt werden, was üblicherweise dadurch erfolgt, daß der Trinkvorgang unterbrochen wird, so daß Luft durch den Sauger in das Flascheninnere gelangen kann. Dies stört natürlich die Nahrungsaufnahme. Demgemäß wurden bereits Lösungen vorgeschlagen (vgl. z.B. US-A-3 650 270, US-A-2 959 314, FR-A-2 446 632), gemäß welchen Luft im Bereich des Saugers bzw. Flaschenhalses, etwa über Schikanen oder aber über eine Art von Klappenventilen, dem Flascheninneren zugeführt werden soll. Diese Ausbildungen sind jedoch ziemlich kompliziert, und sie bringen überdies Probleme bei der Reinigung mit sich. Weiters ist von Nachteil, daß die Ausgleichsluft in umittelbarer Nähe des Saugers zugeführt wird, was ein nachteiliges Mitschlucken von Luft beim Trinken zur Folge haben kann. Andere Lösungsvorschläge (vgl. z.B. EP-A-9 460 oder CH-A-439 585) gingen dahin, in der Saugflasche einen leicht gleitenden Kolben oder aber einen Beutel unterzubringen, der den Flüssigkeitsraum von einem Luftraum trennt, der seinerseits mit der Umgebung verbunden ist, so daß Ausgleichsluft in ihn eindringen kann. Die Hinzufügung eines derartigen, mehr oder weniger komplizierten Bauteils ist jedoch ebenfalls nachteilig, da die Handhabung ebenso wie die einwandfreie Reinhaltung erschwert wird. Die vorstehend erwähnten Nachteile treffen auch auf die Saugflasche gemäß der US-A-4 685 577 zu, bei der am Boden ein Schraubverschluß mit einer Schraubkappe vorgesehen ist, mit der eine den ansonsten offenen Flaschenboden verschließende Bodenplatte befestigt wird, in der mehrere Einweg-Lippenventile angebracht sind, die den Zutritt von Ausgleichsluft ermöglichen.Such suction bottles are used for the administration of liquid food, such as tea or porridge, to infants and young children, and for this purpose they have a teat in the ready-to-use state, which is clamped onto the bottle neck, for example with the aid of a screw cap. When using these suction bottles, there is the problem that when the contents are sucked by the suction device, a negative pressure is created in the bottle, which often significantly impairs the drinking process. In order to equalize the pressure, it is therefore necessary to ensure that the air enters the inside of the bottle, which is usually done by interrupting the drinking process so that air can get into the inside of the bottle through the teat. Of course, this disrupts food intake. Accordingly, solutions have already been proposed (cf., for example, US Pat. No. 3,650,270, US Pat. No. 2,959,314, FR Pat. No. 2,446,632), according to which air in the area of the teat or bottle neck, for example via baffles or via a type of flap valve to which the bottle interior is to be fed. However, these training courses are quite complicated and they also pose cleaning problems. A further disadvantage is that the compensating air is supplied in the immediate vicinity of the teat, which can result in disadvantageous swallowing of air when drinking. Other proposed solutions (see, for example, EP-A-9 460 or CH-A-439 585) attempted to accommodate a slightly sliding piston or a bag in the suction bottle, which separates the liquid space from an air space, which in turn connects to the environment is so that compensating air can penetrate into it. The addition of such, more or However, less complicated component is also disadvantageous, since handling as well as keeping it clean is made more difficult. The above-mentioned disadvantages also apply to the suction bottle according to US-A-4 685 577, in which a screw cap with a screw cap is provided on the bottom, with which a bottom plate closing the otherwise open bottle bottom is fastened, in which several one-way lip valves are attached that allow the entry of compensating air.
Aus der US-A-4 865 207, von deren Gegenstand im Oberbegriff des Anspruches 1 ausgegangen wird, ist schließlich eine Saugflasche der eingangs angegebenen Art bekannt, bei der ebenfalls eine Schraubkappe am unteren Ende der Saugflasche befestigt wird, um mit dieser Schraubkappe eine mit Mikroporen versehene Membran als Bodenplatte am unteren offenen Flaschenkörper zu befestigen. Diese Mikroporen-Membran ist hinsichtlich ihrer Poren so ausgebildet, daß sie einen Flüssigkeitsaustritt verhindert, jedoch einen Lufteintritt zuläßt. Die Membran ist dabei insbesondere zwischen zwei Gitterplatten als Stützelementen eingeschlossen, und die so gebildete Lufteinströmeinrichtung ist somit verhältnismäßig kompliziert und teuer, wobei überdies ebenfalls der Nachteil vorliegt, daß eine Reinigung nur schwer möglich ist. Im übrigen bedeutet auch die Gewindeausbildung mit der Schraubkappe einen wesentlichen zusätzlichen baulichen Aufwand, so daß eine solche Saugflasche kaum wirtschaftlich herstellbar ist.From US-A-4 865 207, the subject of which is assumed in the preamble of
Es ist nun Aufgabe der Erfindung, eine Saugflasche der eingangs angeführten Art zu schaffen, die einen Druckausgleich beim Trinken wie angegeben erlaubt, ohne daß zusätzliche Komponenten erforderlich sind, und die somit einfach in der Herstellung und im Gebrauch ist.It is an object of the invention to provide a suction bottle of the type mentioned at the outset, which allows pressure equalization when drinking, as indicated, without the need for additional components, and which is therefore simple to manufacture and use.
Die erfindungsgemäße Saugflasche der eingangs erwähnten Art ist dadurch gekennzeichnet, daß die Mikroporen direkt im Flaschenkörper im Bereich des Bodens vorgesehen sind und der Boden mit dem übrigen Flaschenkörper einteilig ausgebildet ist. Bei einer derartigen Saugflasche werden die Nachteile der bekannten Lösungen vermieden, und es wird auf baulich einfache Weise, unter Beibehaltung eines einheitlichen, stabilen Flaschenkörpers mit Boden, ein Lufteinlaß zum Druckausgleich durch die Mikroporen im Bodenbereich ermöglicht; dabei sind die Form und Größe und Anzahl dieser Mikroporen derart, daß ein Austreten des flüssigen Flascheninhalts durch sie hindurch verhindert wird, wohl aber der Druckausgleich im erforderlichen Ausmaß ermöglicht wird.The suction bottle according to the invention of the type mentioned at the outset is characterized in that the micropores are provided directly in the bottle body in the region of the base and the base is formed in one piece with the rest of the bottle body. With such a feeding bottle, the disadvantages of the known solutions are avoided, and it becomes structurally simple Way, while maintaining a uniform, stable bottle body with bottom, allows an air inlet for pressure equalization through the micropores in the bottom area; the shape and size and number of these micropores are such that the liquid bottle contents are prevented from escaping through them, but the pressure equalization to the required extent is possible.
Die Erfindung macht sich hierbei die Möglichkeiten der modernen Laser-Technologie zunutze, mit der verschiedene Materialien, wie z.B. Polykarbonat, aus dem beispielsweise der Saugflaschenkörper hergestellt wird, mit Löchern durchbohrt werden kann, deren Abmessungen so klein sind, daß sie den Durchtritt von Flüssigkeitsmolekülen, wie Wassermolekülen, verhindern, jedoch den Durchtritt von Luftmolekülen gestatten.The invention takes advantage of the possibilities of modern laser technology with which different materials, such as Polycarbonate, from which the bottle body is made, for example, can be drilled with holes whose dimensions are so small that they prevent the passage of liquid molecules, such as water molecules, but allow the passage of air molecules.
Demgemäß betrifft die Erfindung auch ein Verfahren zur Herstellung einer Saugflasche wie vorstehend angegeben, und dieses Verfahren ist erfindungsgemäß dadurch gekennzeichnet, daß nach Herstellen des Flaschenkörpers aus Kunststoff, beispielsweise in einem Blasverfahren, die Mikroporen im Bodenbereich mit Hilfe eines Laserstrahls eingebrannt werden. Vorzugsweise wird dabei ein ausreichend energiereicher Laser, insbesondere eine CO₂-Laser, zum Einbrennen der Mikroporen eingesetzt.Accordingly, the invention also relates to a method for producing a feeding bottle as stated above, and this method is characterized according to the invention in that after the bottle body is made of plastic, for example in a blowing process, the micropores in the bottom area are burned in with the aid of a laser beam. A sufficiently high-energy laser, in particular a CO₂ laser, is preferably used to burn in the micropores.
An sich können Mikroporen im Flaschenkörper sowohl im Boden als auch in dessen Seitenwand benachbart dem Boden angebracht werden, so daß beim Gebrauch der Saugflasche, beim Trinken, am vom Sauger abgelegenen Ende der Flasche die Druckausgleichsluft in das Flascheninnere eintreten kann. Es hat sich jedoch gezeigt, daß es für den gewünschten Druckausgleich sowie für die Herstellung der Saugflasche vorzuziehen ist, wenn die Mikroporen nur im Boden des Flaschenkörpers vorgesehen sind.As such, micropores in the bottle body can be attached both in the bottom and in its side wall adjacent to the bottom, so that when using the feeding bottle, when drinking, the pressure compensation air can enter the inside of the bottle at the end of the bottle remote from the teat. However, it has been shown that it is preferable for the desired pressure equalization and for the manufacture of the feeding bottle if the micropores are only provided in the bottom of the bottle body.
Von besonderem Vorteil ist es schließlich, wenn die Mikroporen nur in einer einwärts gewölbten Mittenzone des Bodens des Flaschenkörpers vorgesehen sind. Bei einer derartigen Bodenausbildung wird einerseits durch die Einwärtswölbung eine vergrößerte Stabilität des Flaschenbodens insgesamt erreicht, so daß keine die Querschnittsform und damit die Funktion der Mikroporen beeinträchtigende Deformation des Flaschenkörpers im Bereich des Bodens möglich ist, und andererseits sind die Mikroporen, da sie bei abgestellter Flasche im Abstand von der Unterlage sind, auch gut gegen Verschmutzen geschützt.Finally, it is particularly advantageous if the micropores are provided only in an inwardly curved central zone of the bottom of the bottle body. With such a bottom formation, on the one hand, the inward curvature increases the overall stability of the bottle bottom, so that none of the cross-sectional shape and thus the function of the Deformation of the bottle body in the region of the bottom which impairs micropores is possible, and on the other hand the micropores are also well protected against soiling because they are at a distance from the base when the bottle is parked.
Die Erfindung wird nachstehend anhand eines in der Zeichnung dargestellten bevorzugten Ausführungsbeispieles, auf das sie jedoch nicht beschränkt sein soll, noch weiter erläutert. Es zeigen:
- Fig. 1 eine teilweise aufgebrochene Ansicht eines Saugflasche mit einem integral geformten Boden;
- Fig. 2 eine Axialschnittdarstellung des Bodenbereichs des Flaschenkörpers der Saugflasche gemäß Fig. 1 in demgegenüber vergrößertem Maßstab;
- Fig. 3 eine zugehörige Ansicht des Bodens dieser Saugflasche von unten; und
- Fig. 4 stark vergrößert und nicht maßstäblich einen Detailschnitt durch die Wandung des Flaschenkörpers im Bereich einer Mikropore.
- Figure 1 is a partially broken away view of a feeding bottle with an integrally molded bottom.
- FIG. 2 shows an axial sectional view of the bottom area of the bottle body of the feeding bottle according to FIG. 1 on an enlarged scale;
- 3 shows an associated view of the bottom of this feeding bottle from below; and
- Fig. 4 greatly enlarged and not to scale a detail section through the wall of the bottle body in the area of a micropore.
Die in Fig. 1 in kompletter Ausstattung gezeigte Saugflasche besteht in an sich herkömmlicher Weise aus einem Flaschenkörper 1, der unten durch einen einteilig geformten Boden 2 abgeschlossen ist. Dieser Flaschenkörper 1 kann beispielsweise in einem üblichen Blasverfahren aus einem Kunststoff, wie Polykarbonat, hergestellt werden.The suction bottle shown in FIG. 1 in its complete configuration consists in a conventional manner of a
An der in der Zeichnung nicht ersichtlichen offenen Oberseite des Flaschenkörpers 1 ist eine Schraubkappe 3 in der Art einer Überwurfmutter aufgeschraubt, womit ein Sauger 4 am Flaschenkörper 1 befestigt werden kann.On the open top of the
Hinsichtlich der allgemeinen Ausbildung einer solchen Saugflasche kann im übrigen beispielsweise auf die EP-A-311 596 verwiesen werden, wobei zu ergänzen ist, daß selbstverständlich auch andere Flaschenformen, inbesondere auch sog. "Enghals"- Saugflaschen, vorliegen können.With regard to the general design of such a feeding bottle, reference can also be made, for example, to EP-A-311 596, whereby it should be added that other bottle shapes, in particular so-called "narrow-neck" feeding bottles, can of course also be present.
Um beim Trinken mit einer solchen Saugflasche einen Lufteintritt in das Flascheninnere zu ermöglichen, ist der Boden 2 des Flaschenkörpers 1 mit Mikroporen 5 in Form von sehr feinen Bohrungen versehen, die beispielsweise in einem Muster von konzentrischen Kreisen oder aber von radialen Strahlen in einer einwärts gewölbten Mittenzone 6 des Bodens 2 des Flaschenkörpers 1 vorgesehen sind. Durch diese Einwärtswölbung der Mittenzone 6 wird im übrigen ein äußerer, nach unten vorstehender Randbereich 7 des Bodens 2 erhalten, der als Standfuß für die Saugflasche dient.The bottom is to allow air to enter the inside of the bottle when drinking with such a
Der Durchmesser der Mikroporen 5 ist derart klein, daß Wasser und andere Flüssignahrung aufgrund der Oberflächenspannung nicht durch die Mikroporen 5 hindurchtreten kann, d.h. auch keine Kapillarwirkung zum Tragen kommt, Luft jedoch unter dem durch das Aussaugen des Flascheninhalts entstehenden Unterdruck in das Flascheninnere eintreten kann. Zu beachten ist auch, daß die Porengröße so ist, daß die Poren nicht vom Flascheninhalt verstopft werden. Sodann ist wichtig, daß der Lufteintritt zum Druckausgleich im Bereich des Flaschenbodens 2 erfolgt, und zwar im Boden 2 selbst und/oder im benachbarten Seitenwandbereich, wie in Fig. 2 bei 5' angedeutet ist, d.h. der Lufteintritt erfolgt möglichst weit vom Sauger 4 entfernt, um beim Trinken das Mitschlucken von eintretender Luft durch das Kind zu verhindern.The diameter of the
Die Anzahl der Mikroporen 5 bzw. 5' wird so bemessen, daß bei einem Unterdruck, wie ihn Kleinkinder beim Trinken verursachen können, ein entsprechender Druckausgleich durch den Lufteintritt ermöglicht wird, d.h. so viel Volumen pro Zeiteinheit der Säugling saugen kann, so viel Volumen Luft pro Zeiteinheit soll in die Flasche eintreten können. Danach richtet sich die Gesamtquerschnittsfläche der Mikroporen 5 bzw. 5' und demgemäß eben die Anzahl der Mikroporen. In diesem Zusammenhang sei erwähnt, daß in der Darstellung von Fig. 3 die Anordnung der Mikroporen 5 nur ganz schematisch veranschaulicht ist, und daß in der Regel wesentlich mehr Mikroporen 5 als gezeigt vorzusehen sind, um den ausreichenden Lufteintritt sicherzustellen.The number of
Die Größe der Mikroporen 5 bzw. 5' kann in Abhängigkeit vom verwendeten Flaschenmaterial sowie davon, für welche Flüssignahrung die Flasche bestimmt ist (entweder für dickere, breiartige Nahrung oder aber für Tee usw.) bestimmt werden. Beispielsweise können die Mikroporen 5 bzw. 5' einen runden Querschnitt mit einem Durchmesser von einigen µm, bis zu etwa 50 µm oder etwas darüber, bei einer Bodendicke von 1 - 1,5 mm (Flaschenkörper aus Polykarbonat) haben.The size of the
Die Form der Mikroporen 5 kann ähnlich einer zylindrischen bis konischen Bohrung sein. In Fig. 4 ist eine im Längs- oder Axialschnitt konische Mikropore 5 gezeigt, die an der Flaschenaußenseite 8 einen größeren Durchmesser, z.B. im Bereich von 50 µm bis 100 µm, als an der Innenseite 9 hat, wo der Durchmesser z.B. ungefähr 5 µm betragen kann.The shape of the
Bei praktischen Versuchen wurden zufriedenstellende Ergebnisse mit Saugflaschen erzielt, deren Flaschenkörper 1 aus Polykarbonat mit einer Wandstärke von ca. 1 mm bestanden, und in denen ca. 150 bis 200 Mikroporen mit einer konischen Form gemäß Fig. 4, mit einem Innenseitendurchmesser von 3 µm bis 7 µm und einem Außenseitendurchmesser von 50 µm bis 100 µm, im Bodenbereich eingebrannt waren. Dabei zeigte sich auch, daß es durchaus, wenngleich die Anbringung der Mikroporen 5 im Boden 2 selbst zu bevorzugen ist, auch zufriedenstellend sein kann, die Mikroporen (5' in Fig. 2) bloß in der Seitenwand des Flaschenkörpers 1, etwa in 1 cm bis 2 cm Höhe über dem Boden 2 bzw. dem Standfuß 7, anzubringen.In practical tests, satisfactory results were achieved with feeding bottles, the
Zur Herstellung der Mikroporen 5 im Boden 2 bzw. dessen Mittenzone 6 wird ein scharf gebündelter Strahl eines Hochleistungslasers, inbesondere eines CO₂-Lasers, verwendet, mit dem an der Stelle der zu bildenden oder einzubrennenden Mikroporen 5 bzw. 5' das Material des zuvor z.B. in einem Blasverfahren hergestellten Flaschenkörpers 1 zum Schmelzen gebracht wird bzw. verdampft wird. Beispielsweise kann ein Laser mit einer Leistung von einigen 100 mJ oder einigen J eingesetzt werden, wobei gegebenenfalls auch mehrere Mikroporen 5 bzw.5' gleichzeitig (z.B. mit Hilfe eines im Strahlengang angebrachten Strahlteilers) eingebrannt werden können.To produce the
Claims (6)
- A feeding bottle comprising a bottle body (1) provided with micropore air inlet opening means in its bottom region (2), which enable the inflow of ambient air, yet impede the leakage of a liquid bottle content, characterized in that the micropores (5) are provided directly in the bottle body (1), in the region of its bottom (2), and the bottom (2) is designed in one piece with the remaining bottle body (1).
- A feeding bottle according to claim 1, characterized in that the micropores (5) are provided in the bottom (2) of the bottle body (1) only.
- A feeding bottle according to claim 1 or 2, characterized in that the micropores (5) are provided in an inwardly curved central zone (6) of the bottom (2) of the bottle body (1) only.
- A method of producing a feeding bottle according to any one of claims 1 to 3, characterized in that, after production of the bottle body (1) of synthetic material, the micropores (5) are burnt in in the bottom region by aid of a laser beam.
- A method according to claim 4, characterized in that a CO₂-laser is used for burning in the micropores (5).
- A method according to claim 4 or 5, characterized in that the bottle body (1) is produced in a blowing process.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AT0042290A AT393957B (en) | 1990-02-22 | 1990-02-22 | SUCTION BOTTLE |
| AT422/90 | 1990-02-22 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP0516644A1 EP0516644A1 (en) | 1992-12-09 |
| EP0516644B1 true EP0516644B1 (en) | 1994-03-16 |
Family
ID=3490203
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP91903377A Expired - Lifetime EP0516644B1 (en) | 1990-02-22 | 1991-01-31 | Feeding bottle |
Country Status (7)
| Country | Link |
|---|---|
| US (1) | US5339971A (en) |
| EP (1) | EP0516644B1 (en) |
| JP (1) | JP2933716B2 (en) |
| AT (2) | AT393957B (en) |
| DE (1) | DE59101210D1 (en) |
| ES (1) | ES2050534T3 (en) |
| WO (1) | WO1991012791A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102006009649A1 (en) * | 2006-03-02 | 2007-09-13 | Vurçak, Esat | Bottle neck with additional opening for drinking from bottle without pausing is manufactured of plastic, glass or other material with additional air supply opening |
Families Citing this family (19)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5499729A (en) * | 1994-03-15 | 1996-03-19 | Children On The Go, Inc. | Infant feeding bottle including pressure equalizing diaphragm |
| US5699921A (en) * | 1996-04-05 | 1997-12-23 | Rodriguez; Victor Jose | System for use in delivering air into the interior of a baby-bottle |
| US6053342A (en) * | 1997-09-03 | 2000-04-25 | Playtex Products, Inc. | Infant feeding bottle with pressure equalizing diaphragm |
| US20040173556A1 (en) * | 1997-09-19 | 2004-09-09 | Smolko Daniel D. | Vented closures for containers |
| AU736360B2 (en) * | 1997-11-13 | 2001-07-26 | Injectair Pty Ltd | Check valve for venting an enclosure using surface tension between different fluids |
| AU757821B2 (en) * | 1997-12-10 | 2003-03-06 | Playtex Products, Inc. | Vent disc for baby bottle and method and apparatus for manufacture thereof |
| US6142325A (en) | 1998-10-19 | 2000-11-07 | Playtex Products, Inc. | Container assembly and bottom cap therefor |
| US7163113B2 (en) | 2000-04-05 | 2007-01-16 | Playtex Products, Inc. | Vent disc with center knob |
| AU2001279309A1 (en) | 2000-08-03 | 2002-02-18 | Playtex Products, Inc. | Easy to hold container |
| US7503461B1 (en) * | 2002-05-13 | 2009-03-17 | The United States Of America As Represented By The Secretary Of The Air Force | Air-admittance device and method for making same |
| AR050317A1 (en) * | 2005-02-18 | 2006-10-18 | Pillado Rodolfo Mario | AIR INLET REGULATOR VALVE FOR BLOWERS |
| US20080237176A1 (en) * | 2005-02-18 | 2008-10-02 | Ramiro Pillado | Nursing Bottle Air-Inlet Regulating Valve |
| WO2008079282A2 (en) * | 2006-12-20 | 2008-07-03 | Playtex Products, Inc. | Vent valve assemblies for baby bottles |
| US20080251655A1 (en) * | 2007-04-12 | 2008-10-16 | Housley Todd B | Bottle Holder |
| US7658294B2 (en) * | 2007-04-12 | 2010-02-09 | Todd B. Housley | Nursing bottle with cushiony exterior sidewall |
| US20100193459A1 (en) * | 2007-04-12 | 2010-08-05 | Todd Housley | Nursing bottle with recessed storage area |
| US8931650B2 (en) | 2008-02-13 | 2015-01-13 | L. Jason Clute | Vented baby bottle |
| US20110132909A1 (en) * | 2009-12-08 | 2011-06-09 | Wen-Cheng Chiou | Container for conserving fresh fruit |
| CN101879130A (en) * | 2010-07-20 | 2010-11-10 | 中山市东升镇宏达塑料五金制品厂 | Novel feeding bottle |
Family Cites Families (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2959314A (en) * | 1959-12-07 | 1960-11-08 | Sanchez Albert | Suction valve for baby bottle nipple |
| US3292808A (en) * | 1965-03-19 | 1966-12-20 | Edward J Greene | Valve means for bottle |
| CH439585A (en) * | 1966-10-26 | 1967-07-15 | Dietziker Albert | Nursing bottle |
| US3650270A (en) * | 1970-02-18 | 1972-03-21 | West Co | Nipple-retaining ring assembly |
| US3768682A (en) * | 1971-11-05 | 1973-10-30 | R Miolla | Anti-cholic feeding device |
| US4093105A (en) * | 1977-10-19 | 1978-06-06 | N. T. Gates Company | Plastic container with vent means |
| BR7905905A (en) * | 1978-09-20 | 1980-07-29 | H Itoh | PISTON IN A PISTON TYPE BREAST DEVICE |
| FR2446632A1 (en) * | 1979-01-19 | 1980-08-14 | Grasset Joseph | Feeding bottle teat with valve - has valve mounted on perforated partition over bottle-neck to prevent ingress of air to teat but regulating its entry to bottle |
| DE3541480A1 (en) * | 1985-11-23 | 1987-05-27 | Stiftung Ordo | PROTECTIVE DEVICE |
| DE3544229A1 (en) * | 1985-12-11 | 1987-06-19 | Helmut Herdel | Device for screening off radiation, grids and grid lines |
| DE3631354A1 (en) * | 1986-01-31 | 1987-09-10 | Hermann M M Dr Re Killesreiter | Energy dissipator for intercepting electromagnetic waves by reflection, screening and dissipation |
| US4685577A (en) * | 1986-04-24 | 1987-08-11 | Wen Chung Chen | Nursing bottle |
| US4648519A (en) * | 1986-04-28 | 1987-03-10 | Sunbeam Plastics Corporation | Vented closure |
| US4828126A (en) * | 1987-06-17 | 1989-05-09 | Vincinguerra Mark T | Baby bottle having an air inlet valve |
| AT392211B (en) * | 1987-10-09 | 1991-02-25 | Mam Babyartikel | SUCTION BOTTLE |
| US4821896A (en) * | 1988-03-24 | 1989-04-18 | Cheng Ping N | Nursing bottle with a liner and vent |
| US4865207A (en) * | 1988-06-09 | 1989-09-12 | Joyner Jack S | Nursing bottle with microporous membrane |
-
1990
- 1990-02-22 AT AT0042290A patent/AT393957B/en not_active IP Right Cessation
-
1991
- 1991-01-31 JP JP3503624A patent/JP2933716B2/en not_active Expired - Lifetime
- 1991-01-31 DE DE91903377T patent/DE59101210D1/en not_active Expired - Lifetime
- 1991-01-31 AT AT91903377T patent/ATE102816T1/en not_active IP Right Cessation
- 1991-01-31 US US07/923,887 patent/US5339971A/en not_active Expired - Lifetime
- 1991-01-31 EP EP91903377A patent/EP0516644B1/en not_active Expired - Lifetime
- 1991-01-31 ES ES91903377T patent/ES2050534T3/en not_active Expired - Lifetime
- 1991-01-31 WO PCT/AT1991/000016 patent/WO1991012791A1/en active IP Right Grant
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102006009649A1 (en) * | 2006-03-02 | 2007-09-13 | Vurçak, Esat | Bottle neck with additional opening for drinking from bottle without pausing is manufactured of plastic, glass or other material with additional air supply opening |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH05506376A (en) | 1993-09-22 |
| EP0516644A1 (en) | 1992-12-09 |
| DE59101210D1 (en) | 1994-04-21 |
| WO1991012791A1 (en) | 1991-09-05 |
| AT393957B (en) | 1992-01-10 |
| JP2933716B2 (en) | 1999-08-16 |
| ATA42290A (en) | 1991-07-15 |
| ES2050534T3 (en) | 1994-05-16 |
| US5339971A (en) | 1994-08-23 |
| ATE102816T1 (en) | 1994-04-15 |
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