EP1851136B1 - Sprayhead and aerosol can with such a sprayhead - Google Patents
Sprayhead and aerosol can with such a sprayhead Download PDFInfo
- Publication number
- EP1851136B1 EP1851136B1 EP03782207A EP03782207A EP1851136B1 EP 1851136 B1 EP1851136 B1 EP 1851136B1 EP 03782207 A EP03782207 A EP 03782207A EP 03782207 A EP03782207 A EP 03782207A EP 1851136 B1 EP1851136 B1 EP 1851136B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- spray head
- sprayed
- axial bore
- spray
- outlet
- 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.)
- Revoked
Links
- 239000000443 aerosol Substances 0.000 title claims 4
- 239000007921 spray Substances 0.000 claims description 84
- 239000003973 paint Substances 0.000 claims description 13
- 239000000463 material Substances 0.000 claims description 8
- 239000003380 propellant Substances 0.000 claims description 4
- 238000010422 painting Methods 0.000 claims description 3
- 238000004891 communication Methods 0.000 claims description 2
- 238000002360 preparation method Methods 0.000 claims description 2
- 239000003795 chemical substances by application Substances 0.000 claims 1
- 239000000126 substance Substances 0.000 abstract description 12
- 230000001105 regulatory effect Effects 0.000 abstract description 4
- 238000005507 spraying Methods 0.000 abstract description 4
- 230000033228 biological regulation Effects 0.000 description 7
- 230000007423 decrease Effects 0.000 description 2
- 239000004604 Blowing Agent Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000007591 painting process Methods 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
Images
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B1/00—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means
- B05B1/14—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means with multiple outlet openings; with strainers in or outside the outlet opening
- B05B1/16—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means with multiple outlet openings; with strainers in or outside the outlet opening having selectively- effective outlets
- B05B1/1627—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means with multiple outlet openings; with strainers in or outside the outlet opening having selectively- effective outlets with a selecting mechanism comprising a gate valve, a sliding valve or a cock
- B05B1/1636—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means with multiple outlet openings; with strainers in or outside the outlet opening having selectively- effective outlets with a selecting mechanism comprising a gate valve, a sliding valve or a cock by relative rotative movement of the valve elements
- B05B1/1645—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means with multiple outlet openings; with strainers in or outside the outlet opening having selectively- effective outlets with a selecting mechanism comprising a gate valve, a sliding valve or a cock by relative rotative movement of the valve elements the outlets being rotated during selection
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B1/00—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means
- B05B1/30—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to control volume of flow, e.g. with adjustable passages
- B05B1/3013—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to control volume of flow, e.g. with adjustable passages the controlling element being a lift valve
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B1/00—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means
- B05B1/30—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to control volume of flow, e.g. with adjustable passages
- B05B1/3026—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to control volume of flow, e.g. with adjustable passages the controlling element being a gate valve, a sliding valve or a cock
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B1/00—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means
- B05B1/30—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to control volume of flow, e.g. with adjustable passages
- B05B1/3033—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to control volume of flow, e.g. with adjustable passages the control being effected by relative coaxial longitudinal movement of the controlling element and the spray head
- B05B1/304—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to control volume of flow, e.g. with adjustable passages the control being effected by relative coaxial longitudinal movement of the controlling element and the spray head the controlling element being a lift valve
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B1/00—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means
- B05B1/30—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to control volume of flow, e.g. with adjustable passages
- B05B1/3033—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to control volume of flow, e.g. with adjustable passages the control being effected by relative coaxial longitudinal movement of the controlling element and the spray head
- B05B1/304—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to control volume of flow, e.g. with adjustable passages the control being effected by relative coaxial longitudinal movement of the controlling element and the spray head the controlling element being a lift valve
- B05B1/3046—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to control volume of flow, e.g. with adjustable passages the control being effected by relative coaxial longitudinal movement of the controlling element and the spray head the controlling element being a lift valve the valve element, e.g. a needle, co-operating with a valve seat located downstream of the valve element and its actuating means, generally in the proximity of the outlet orifice
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D83/00—Containers or packages with special means for dispensing contents
- B65D83/14—Containers or packages with special means for dispensing contents for delivery of liquid or semi-liquid contents by internal gaseous pressure, i.e. aerosol containers comprising propellant for a product delivered by a propellant
- B65D83/44—Valves specially adapted therefor; Regulating devices
Definitions
- the invention relates to a spray can, consisting of a can body containing a propellant and a substance to be sprayed, a valve through which is driven when actuated by the substance to be sprayed, and a spray head, the application of the substance to be sprayed in the environment Operation of the valve is used, wherein the spray head has an axial bore through which the substance to be sprayed is guided into the spray head.
- the invention relates to a spray head for use as part of the spray can according to the invention.
- Spray cans as from the US 3 407 977 known, have found in many applications for many years, a wider spread.
- paints are also often sold in paint spray cans, which are particularly popular in the do-it-yourself sector, since paint spray cans a comparatively simple and inexpensive method for paint application in comparison to much more expensive compressed air, airless or other paint spraying equipment represent.
- paint spray cans have the disadvantage that the application rate of the paint can not be chosen freely by the user.
- Conventional spray cans have an application rate of about 10 g within 10 seconds, from the EP 0 925 236 B1
- spray cans are also known with an application rate of up to 35 g / 10 s.
- a spray can which consists of a can body, which contains a propellant and a substance to be sprayed, a valve through which upon actuation of the substance to be sprayed, and a Sprühkopt according to claim 1, for the application of the sprayed Substance into the environment by actuation of the valve, wherein the spray head has an axial bore through which the substance to be sprayed is fed into the spray head, and the spray head has an additional adjustment device for regulating the Ausbringrate.
- Such a spray can makes it possible to use a conventional can body and a conventional valve and provide only in the spray head a corresponding adjustment. Since the spray head is a particularly small and cost-effective component of the spray can, the spray can according to the invention as a whole is particularly inexpensive to produce. Since the spray head is that part of the spray can which the user actuates to dispense the substance to be sprayed, the handling and regulation of the application rate with the aid of the spray can according to the invention is also particularly suitable for the layman.
- a known spray head an adjusting device for regulating the discharge rate in the form of an adjustable needle valve.
- a gap preferably an annular gap provided, into which opens the cone of the needle valve and this closes different degrees depending on the penetration depth.
- the outlet and the axial bore are connected to each other via the gap, so that results in far unscrewed needle valve, an open connection between the axial bore and outlet.
- the needle valve has expediently a thread and is adjustable from the outside.
- the needle valve When the needle valve is widely screwed in, the gap between the outlet and the axial bore is completely or almost completely closed, so that the discharge rate is correspondingly low or even zero, while the gap is correspondingly strongly opened when the needle valve is screwed out far enough to ensure a high discharge rate.
- the needle valve on its outer side expediently has a small wheel or other handle. Since the spray head is a very small component, the other dimensions must be equipped accordingly.
- the diameter of the annular gap, which serves the pre-metering typically in the order of 1.5 mm, while the thread of the needle valve may have a thickness of about 2.3 mm.
- the tip of the cone of the needle valve may have an angle of approximately 20 °. Depending on the condition of the spray can, d.
- the height of the pressure exerted by the blowing agent and the other embodiment of the spray head and the valve, the discharge rate can be varied continuously in a range of about 0 to 31 g / 10 s.
- the data given here are, of course, merely exemplary and in no way constitute a limitation of the invention.
- the needle valve may be provided both transversely and along the axis of the axial bore in the spray head.
- the gap is located on the inside of the outlet of the spray head, so that the cone of the needle valve laterally, engages in the gap. In this way, the field of operation of the spray head, to which the user must press to spray from the spray can, not affected by the needle valve, which is why this embodiment is preferred.
- the needle valve run longitudinally to the axial bore, so that it protrudes with its setting end of the spray actuator.
- the gap in which the cone of the needle valve engages located at the upper end of the axial bore.
- the spray head transversely to the axial bore on a related side bore, wherein the outlet of the spray head is located at one end of the lateral bore and engages from the other end of the lateral bore forth a rotatable, cylindrical element in the bore, which the axial bore slightly overlapped.
- the cylindrical element has a bevel or rounding, z. B. in the form of an asymmetrical cone, which, when the chamfer or rounding is brought by rotation of the cylindrical member over the axial bore, a flow opening from the axial bore in the lateral bore releases.
- Upon rotation of the cylindrical element enters a non-rounded part on the axial bore, which may optionally cover virtually complete.
- the chamfer or rounding at one end of the cylindrical element is designed so that the discharge rate can be practically infinitely regulated, the maximum application rate is ensured if the maximum bevel or rounding is above the axial bore, while the minimum discharge rate or full closure is ensured when a non-chamfered or rounded portion of the cylindrical element is brought over the axial bore.
- the bevel or rounding is designed circumferentially around the cylinder-shaped element such that the extent of the bevel or rounding continuously increases or decreases.
- the zyl inderförmige element on one side is maximally rounded or beveled and on the opposite side completely straight, so that the adjustment between maximum and minimum opening by rotation by 180 °.
- One end of the cylindrical member protrudes to one side, typically to the side opposite the outlet, out of the spray head so that the user can grasp that end and twist it according to his or her desire for the discharge rate.
- this side of the cylindrical en Elements also have a handle.
- the scale may optionally include specific information about the Ausbringrate.
- the spray can with a rotatable or displaceable element with one or more openings which are movable in front of or in the outlet of the spray head.
- the rotatable or displaceable element has a plurality of openings of different cross-section.
- the discharge rate also differs.
- the rotatable or displaceable element may be provided with an opening of diameter of 0.3 mm and another opening of diameter 0.5 mm so that the discharge rate increases correspondingly when using the 0.5 mm opening.
- the openings may also be designed differently in that they are different types of nozzles, for. B. around a round nozzle and a fan nozzle.
- the openings in the rotatable or displaceable element so that their cross section varies depending on the position before or in the outlet.
- slot-shaped openings are conceivable in which the slot widens from one end to the other. Now, if the widest point of the slot brought before or in the outlet of the spray head, the discharge rate is maximum.
- the provision of the rotatable or displaceable element with openings of variable cross section also allows a stepless adjustment of the discharge rate and is therefore particularly advantageous.
- variable cross-section apertures such that, for example, an opening for discharge rates of 0 to 16 g / 10 s and a second opening of variable cross-section for a discharge rate of 16 to 31 g / 10 s is responsible.
- inventive spray can in the field of paint spray cans, in which the substance to be sprayed is a paint, a paint preparation or other dye.
- the special importance in this area results, as already stated, from the fact that especially during painting a uniform and controlled spraying is of particular importance.
- the invention can be used for all spray cans.
- the invention also relates to the spray head, as it is usable as part of a spray can of the type described above.
- FIG. 1 a spray head 1 according to a first embodiment is shown in which a needle valve 5 is used to regulate the discharge rate.
- the spray head 1 forms the upper end of a spray can (not shown here), wherein the spray head 1 is connected via an axial bore 3 with the valve 4 and the can body.
- the valve 4 is opened by pressing on the top 2 of the spray head 1, whereupon the propellant conveys the spray material through the valve 4 in the spray head 1.
- the axial bore 3 is connected via a gap 8, which is annular, with the outlet 9 in connection, so that the sprayed material can flow accordingly.
- the spray head 1 In order to regulate the discharge rate, the spray head 1 has transversely to the axial bore 3 via a recess 6 for receiving a needle 5, which has a cone 7 at its tip. This cone 7 opens into the gap 8 and closes it more or less completely if necessary.
- the Needle 5 has a thread and can be more or less screwed by means of the handle 10. In fully screwed state, the gap 8 is largely closed, since the cone 7 is adjacent to the gap 8 and the connection of the outlet 9 and the axial bore 3 interrupts. Now, if the needle 5 further unscrewed from the spray head 1, the gap between the gap 8 and cone 7 of the needle 5 is larger and correspondingly more Sprühgut can escape. With the help of such a needle valve 5, a particularly fine dosage is possible.
- FIG. 2 is a modification of the in FIG. 1 shown spray head, in which the regulation of the discharge rate via a needle valve 5 is carried out.
- FIG. 2 is different from this FIG. 1 in that the gap 8 is provided here at the upper end of the axial bore 3 and the cone 7 of the needle 5 opens from above into the gap 8. Again, by screwing the needle 5, the gap 8 is largely closed, so that the Ausbringrate is reduced accordingly, while by unscrewing the needle 5, the Ausbringrate increases due to the increase in the passage between the gap 8 and cone 7.
- the spray head transverse to the axial bore 3 has a lateral bore 15 which is connected to the axial Bore 3 is in communication.
- a cylindrical element 16 is recessed from the opposite side of the outlet 9, which covers the axial bore 3.
- this has an asymmetrical cone 17, which, when it lies over the axial bore 3, a passage opening 18 releases, which establishes the connection between the axial bore 3, lateral bore 15 and outlet 9. In this position can accordingly emerge Sprühgut.
- the cylindrical element 16 can be rotated in the lateral bore 15 along the arrow 19, wherein after a 180 ° rotation, the non-rounded, inner end of the cylindrical element 16 is located above the axial bore 3 and closes it. In this position, the discharge rate decreases accordingly.
- the rounding / bevel circumferentially around the cylindrical member 16 is formed so that the bevel / rounding from one side to the opposite side is getting stronger, until finally in the position shown in the drawing, the size of the passage opening 18 is maximum.
- spray head is located in the outlet region in front of the lateral bore 15, which establishes the connection to the axial bore 3, a rotatable element 25 which has two nozzles 26 and 27.
- the representation chosen here for the rotatable element 25 of three individual components is chosen only to illustrate the outlet channels; in fact, it is a part, as indicated by the corresponding dashed lines.
- the rotatable element 25 can be rotated about the axis 29 according to the arrow 28, so that either the nozzle 26 with a small passage opening or the nozzle 27 with a larger Passage opening is brought in front of the lateral bore 15, whereby the discharge rate changed.
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- Chemical & Material Sciences (AREA)
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Abstract
Description
Die Erfindung betrifft eine Sprühdose, bestehend aus einem Dosenkörper, der ein Treibmittel sowie einen zu versprühenden Stoff enthält, einem Ventil, durch welches bei Betätigung der zu versprühende Stoff getrieben wird, und einem Sprühkopf, der der Ausbringung des zu versprühenden Stoffes in die Umgebung durch Betätigung des Ventils dient, wobei der Sprühkopf eine axiale Bohrung aufweist, durch die der zu versprühende Stoff in den Sprühkopf geführt wird. Darüber hinaus betrifft die Erfindung einen Sprühkopf zur Verwendung als Teil der erfindungsgemäßen Sprühdose.The invention relates to a spray can, consisting of a can body containing a propellant and a substance to be sprayed, a valve through which is driven when actuated by the substance to be sprayed, and a spray head, the application of the substance to be sprayed in the environment Operation of the valve is used, wherein the spray head has an axial bore through which the substance to be sprayed is guided into the spray head. Moreover, the invention relates to a spray head for use as part of the spray can according to the invention.
Sprühdosen, wie aus der
Häufig ist es für den Nutzer jedoch wünschenswert, die Lackausbringrate in einfacher Weise zu verringern oder zu vergrößern. So ist eine hohe Ausbringrate in der Regel nützlich, wenn größere Flächen einheitlich besprüht werden sollen, bei kleineren Flächen oder diffizileren Lackiertätigkeiten kann es jedoch sinnvoll sein, die Ausbringrate möglichst niedrig zu halten, um den Lackiervorgang auf diese Weise besser kontrollieren zu können. In gewissem Maße ist eine solche Regulierung der Ausbringrate zwar möglich, indem der Sprühkopf am oberen Ende der Sprühdose mehr oder weniger stark nach unten gedrückt wird, eine solche Regulierung ist jedoch naturgemäß äußerst ungenau und kann sich in einem entsprechend mangelhaften Lackierergebnis niederschlagen. Auch in anderen Bereichen als dem Versprühen von Lack ist eine Regulierungsmöglichkeit wünschenswert. Es stellt sich daher die Aufgabe, eine Sprühdose zur Verfügung zu stellen, die die Regulierung der Ausbringrate in möglichst einfacher Weise erlaubt, ohne dabei auf ein deutlich aufwendigeres und kostenintensiveres Sprühsystem ausweichen zu müssen.Often, however, it is desirable for the user to easily reduce or increase the paint coverage rate. So is a high output rate usually useful when larger areas are to be sprayed uniformly, but for smaller areas or more difficult painting activities, it may be useful to keep the application rate as low as possible in order to control the painting process in this way better. To some extent, such a regulation of the discharge rate is possible by the spray head is pressed more or less down at the top of the spray can, but such regulation is naturally very inaccurate and can be reflected in a correspondingly poor Lackierergebnis. Also in other areas than the spraying of paint is a regulation option desirable. It is therefore an object to provide a spray available that allows the regulation of the application rate in the simplest possible way, without having to resort to a much more complex and costly spray system.
Die Aufgabe wird erfindungsgemäß gelöst durch eine Sprühdose, die aus einem Dosenkörper, der ein Treibmittel sowie einen zu versprühenden Stoff enthält, einem Ventil, durch welches bei Betätigung der zu versprühende Stoff getrieben wird, und einem Sprühkopt gemäß Anspruch 1, zur Ausbringung des zu versprühenden Stoffes in die Umgebung durch Betätigung des Ventils besteht, wobei der Sprühkopf eine axiale Bohrung aufweist, durch die der zu versprühende Stoff in den Sprühkopf geführt wird, und der Sprühkopf über eine zusätzliche Einstellvorrichtung zur Regulierung der Ausbringrate verfügt.The object is achieved by a spray can, which consists of a can body, which contains a propellant and a substance to be sprayed, a valve through which upon actuation of the substance to be sprayed, and a Sprühkopt according to
Eine solche Sprühdose macht es möglich, einen herkömmlichen Dosenkörper sowie ein herkömmliches Ventil zu verwenden und lediglich im Sprühkopf eine entsprechende Einstellvorrichtung vorzusehen. Da es sich beim Sprühkopf um ein besonders kleines und kostengünstiges Bauteil der Sprühdose handelt, ist auch die erfindungsgemäße Sprühdose im Ganzen besonders kostengünstig herzustellen. Da es sich beim Sprühkopf um den Teil der Sprühdose handelt, den der Benutzer zum Ausbringen des zu versprühenden Stoffes betätigt, ist die Handhabung und Regulierung der Ausbringrate mit Hilfe der erfindungsgemäßen Sprühdose auch für den Laien besonders geeignet.Such a spray can makes it possible to use a conventional can body and a conventional valve and provide only in the spray head a corresponding adjustment. Since the spray head is a particularly small and cost-effective component of the spray can, the spray can according to the invention as a whole is particularly inexpensive to produce. Since the spray head is that part of the spray can which the user actuates to dispense the substance to be sprayed, the handling and regulation of the application rate with the aid of the spray can according to the invention is also particularly suitable for the layman.
Um die Einstellvorrichtung im Sprühkopf der Sprühdose vorzusehen, sind verschiedene Lösungen denkbar. So weist ein bekannter Sprühkopf eine Einstellvorrichtung zur Regulierung der Ausbringrate in Form eines einstellbaren Nadelventils auf. Hierbei ist des weiteren zwischen der axialen Bohrung im Sprühkopf und dem Auslaß des Sprühkopfes ein Spalt, vorzugsweise ein Ringspalt, vorgesehen, in den der Konus des Nadelventils mündet und diesen je nach Eindringtiefe unterschiedlich stark verschließt. Der Auslaß und die axiale Bohrung sind dabei über den Spalt miteinander verbunden, so daß bei weit herausgeschraubtem Nadelventil sich eine offene Verbindung zwischen axialer Bohrung und Auslaß ergibt. Das Nadelventil verfügt zweckmäßigerweise über ein Gewinde und ist von außen einstellbar.To provide the adjustment in the spray head of the spray, various solutions are conceivable. So has a known spray head an adjusting device for regulating the discharge rate in the form of an adjustable needle valve. Here, further, between the axial bore in the spray head and the outlet of the spray head, a gap, preferably an annular gap provided, into which opens the cone of the needle valve and this closes different degrees depending on the penetration depth. The outlet and the axial bore are connected to each other via the gap, so that results in far unscrewed needle valve, an open connection between the axial bore and outlet. The needle valve has expediently a thread and is adjustable from the outside.
Bei weit eingeschraubtem Nadelventil wird der Spalt zwischen Auslaß und axialer Bohrung ganz oder nahezu vollständig geschlossen, so daß die Ausbringrate entsprechend niedrig ist oder gar 0 beträgt, während der Spalt bei weit herausgeschraubtem Nadelventil entsprechend stark geöffnet wird, um eine große Ausbringrate zu gewährleisten. Zur besseren Regulierbarkeit verfügt das Nadelventil an seiner Außenseite zweckmäßigerweise über ein kleines Rädchen oder einen sonstigen Griff. Da es sich beim Sprühkopf um ein sehr kleines Bauteil handelt, müssen entsprechend auch die sonstigen Dimensionen ausgestattet sein. So liegt der Durchmesser des Ringspaltes, der der Vordosierung dient, typischerweise in einer Größenordnung von 1,5 mm, während das Gewinde des Nadelventils eine Stärke von ca. 2,3 mm aufweisen kann. Die Spitze des Konus des Nadelventils kann einen Winkel von ca. 20° aufweisen. Je nach sonstiger Beschaffenheit der Sprühdose, d. h. insbesondere der Höhe des durch das Treibmittel ausgeübten Drucks und der sonstigen Ausgestaltung des Sprühkopfes und des Ventils läßt sich die Ausbringrate stufenlos in einem Bereich von ca. 0 bis 31 g/10 s variieren. Die hier angegebenen Daten sind selbstverständlich lediglich beispielhaft und stellen in keiner Weise eine Beschränkung der Erfindung dar.When the needle valve is widely screwed in, the gap between the outlet and the axial bore is completely or almost completely closed, so that the discharge rate is correspondingly low or even zero, while the gap is correspondingly strongly opened when the needle valve is screwed out far enough to ensure a high discharge rate. For better adjustability, the needle valve on its outer side expediently has a small wheel or other handle. Since the spray head is a very small component, the other dimensions must be equipped accordingly. Thus, the diameter of the annular gap, which serves the pre-metering, typically in the order of 1.5 mm, while the thread of the needle valve may have a thickness of about 2.3 mm. The tip of the cone of the needle valve may have an angle of approximately 20 °. Depending on the condition of the spray can, d. H. In particular, the height of the pressure exerted by the blowing agent and the other embodiment of the spray head and the valve, the discharge rate can be varied continuously in a range of about 0 to 31 g / 10 s. The data given here are, of course, merely exemplary and in no way constitute a limitation of the invention.
Das Nadelventil kann sowohl quer als auch entlang der Achse der axialen Bohrung im Sprühkopf vorgesehen sein. Im Falle eines quer verlaufenden Nadelventils befindet sich der Spalt auf der Innenseite des Auslasses des Sprühkopfes, so daß der Konus des Nadelventils seitlich, in den Spalt eingreift. Auf diese Weise wird das Betätigungsfeld des Sprühkopfes, auf das der Nutzer drücken muß, um aus der Sprühdose zu sprühen, vom Nadelventil nicht beeinträchtigt, weshalb diese Ausführungsform bevorzugt ist.The needle valve may be provided both transversely and along the axis of the axial bore in the spray head. In the case of a transverse needle valve, the gap is located on the inside of the outlet of the spray head, so that the cone of the needle valve laterally, engages in the gap. In this way, the field of operation of the spray head, to which the user must press to spray from the spray can, not affected by the needle valve, which is why this embodiment is preferred.
Es ist jedoch durchaus auch möglich, das Nadelventit längs zu axialen Bohrung verlaufen zu lassen, so daß es mit seinem Einstellende aus der Sprühbetätigung herausragt. In diesem Fall befindet sich der Spalt, in den der Konus des Nadelventils eingreift, am oberen Ende der axialen Bohrung.However, it is also quite possible to let the needle valve run longitudinally to the axial bore, so that it protrudes with its setting end of the spray actuator. In this case, the gap in which the cone of the needle valve engages, located at the upper end of the axial bore.
Erfindungsgemäß weist der Sprühkopf quer zur axialen Bohrung eine mit dieser in Verbindung stehende seitliche Bohrung auf, wobei sich der Auslaß des Sprühkopfes an einem Ende der seitlichen Bohrung befindet und vom anderen Ende der seitlichen Bohrung her ein drehbares, zylinderförmiges Element in die Bohrung eingreift, welches die axiale Bohrung geringfügig überdeckt. An zumindest einer Seite weist das zylinderförmige Element eine Abschrägung oder Abrundung, z. B. in Form eines asymmetrischen Konus auf, die, wenn die Abschrägung oder Abrundung durch Drehung des zylinderförmigen Elements über die axiale Bohrung gebracht wird, eine Durchströmöffnung von der axialen Bohrung in die seitliche Bohrung freigibt. Bei Verdrehung des zylinderförmigen Elements gelangt ein nicht abgerundeter Teil über die axiale Bohrung, welcher diese gegebenenfalls quasi vollständig abdecken kann. Die Abschrägung oder Abrundung an einem Ende des zylinderförmigen Elements ist dabei so ausgestaltet, daß die Ausbringrate praktisch stufenlos reguliert werden kann, wobei die maximale Ausbringrate gewährleistet ist, wenn die maximale Abschrägung oder Abrundung über der axialen Bohrung liegt, während die minimale Ausbringrate bzw. der vollständige Verschluß gewährleistet ist, wenn ein nicht abgeschrägter oder abgerundeter Bereich des zyl inderförmigen Elements über die axiale Bohrung gebracht wird. Um dies zu gewährleisten, wird die Abschrägung bzw. Abrundung umlaufend um das zyl inderförmige Element derart gestaltet, daß das Ausmaß der Abschrägung bzw. Abrundung kontinuierlich zu- oder abnimmt. Zweckmäßigerweise ist das zyl inderförmige Element an einer Seite maximal abgerundet oder abgeschrägt und auf der gegenüberliegenden Seite vollständig gerade, so daß die Einstellung zwischen maximaler und minimaler Öffnung durch Drehung um 180° erfolgt. Ein Ende des zylinderförmigen Elements ragt zu einer Seite, typischerweise zu der dem Auslaß gegenüberliegenden Seite, aus dem Sprühkopf heraus, so daß der Nutzer dieses Ende greifen und entsprechend seinen Wünschen bezüglich der Ausbringrate verdrehen kann. Hierbei kann an dieser Seite des zylinderförmig en Elements auch ein Griff vorhanden sein. Zweckmäßig ist es darüber hinaus insbesondere, eine einfache Anzeigevorrichtung am Sprühkopf vorzusehen, beispielsweise ein Anzeigeelement am zylinderförmigen Element verbunden mit einer Skale auf dem Sprühkopf selbst, wobei die Skala gegebenenfalls konkrete Angaben über die Ausbringrate umfassen kann.According to the invention, the spray head transversely to the axial bore on a related side bore, wherein the outlet of the spray head is located at one end of the lateral bore and engages from the other end of the lateral bore forth a rotatable, cylindrical element in the bore, which the axial bore slightly overlapped. On at least one side, the cylindrical element has a bevel or rounding, z. B. in the form of an asymmetrical cone, which, when the chamfer or rounding is brought by rotation of the cylindrical member over the axial bore, a flow opening from the axial bore in the lateral bore releases. Upon rotation of the cylindrical element enters a non-rounded part on the axial bore, which may optionally cover virtually complete. The chamfer or rounding at one end of the cylindrical element is designed so that the discharge rate can be practically infinitely regulated, the maximum application rate is ensured if the maximum bevel or rounding is above the axial bore, while the minimum discharge rate or full closure is ensured when a non-chamfered or rounded portion of the cylindrical element is brought over the axial bore. To ensure this, the bevel or rounding is designed circumferentially around the cylinder-shaped element such that the extent of the bevel or rounding continuously increases or decreases. Appropriately, the zyl inderförmige element on one side is maximally rounded or beveled and on the opposite side completely straight, so that the adjustment between maximum and minimum opening by rotation by 180 °. One end of the cylindrical member protrudes to one side, typically to the side opposite the outlet, out of the spray head so that the user can grasp that end and twist it according to his or her desire for the discharge rate. Here, on this side of the cylindrical en Elements also have a handle. In addition, it is expedient in particular to provide a simple display device on the spray head, for example, a display element on the cylindrical element connected to a scale on the spray head itself, the scale may optionally include specific information about the Ausbringrate.
Eine weitere bekannte Lösung besteht darin, die Sprühdose mit einem verdreh- oder verschiebbaren Element mit einer oder mehreren Öffnungen zu versehen, die vor oder in den Auslaß des Sprühkopfes bewegbar sind. Um die Ausbringrate auf diese Weise regulieren zu können, weist das verdreh- oder verschiebbare Element mehrere Öffnungen unterschiedlichen Querschnitts auf. Je nachdem, welche Öffnung vor oder in den Auslaß des Sprühkopfes gebracht wird, unterscheidet sich auch die Ausbringrate. Beispielsweise kann das verdreh- oder verschiebbare Element mit einer Öffnung eines Durchmessers von 0,3 mm und mit einer anderen Öffnung mit einem Durchmesser von 0,5 mm versehen sein, so daß die Ausbringrate bei Verwendung der 0,5 mm-Öffnung entsprechend ansteigt. Die Öffnungen können auch in der Hinsicht unterschiedlich ausgestaltet sein, daß es sich um unterschiedliche Düsentypen handelt, z. B. um eine Runddüse und eine Fächerdüse.Another known solution is to provide the spray can with a rotatable or displaceable element with one or more openings which are movable in front of or in the outlet of the spray head. In order to regulate the discharge rate in this way, the rotatable or displaceable element has a plurality of openings of different cross-section. Depending on which opening is brought in front of or in the outlet of the spray head, the discharge rate also differs. For example, the rotatable or displaceable element may be provided with an opening of diameter of 0.3 mm and another opening of diameter 0.5 mm so that the discharge rate increases correspondingly when using the 0.5 mm opening. The openings may also be designed differently in that they are different types of nozzles, for. B. around a round nozzle and a fan nozzle.
Im Vergleich zu den zuvor beschriebenen Lösungen weist diese den Vorteil auf, das sie konstruktiv weniger aufwendig ist. Auf der anderen Seite ist die Einstellbarkeit der Ausbringrate bei Vorsehen verschiedener Öffnungen unterschiedlichen Querschnitts im verdreh- oder verschiebbaren Element nicht mehr stufenlos, sondern nur noch in bestimmten Schritten möglich, wobei die Zahl der Stufen von der Zahl der Öffnungen mit unterschiedlichem Querschnitt abhängt.In comparison to the solutions described above, this has the advantage that it is structurally less expensive. On the other hand, the adjustability of the discharge rate is different when providing Openings of different cross-section in the rotatable or displaceable element no longer infinitely, but only possible in certain steps, the number of stages depends on the number of openings with different cross section.
Daneben ist es auch möglich, die Öffnungen im verdreh- bzw. verschiebbaren Element so auszugestalten, daß ihr Querschnitt je nach Stellung vor oder im Auslaß variiert. Beispielsweise sind schlitzförmige Öffnungen denkbar, bei denen sich der Schlitz von einem Ende zum anderen verbreitert. Wird nun die breiteste Stelle des Schlitzes vor oder in den Auslaß des Sprühkopfes gebracht, so ist die Ausbringrate maximal. Das Versehen des verdreh- bzw. verschiebbaren Elementes mit Öffnungen variablen Querschnitts erlaubt auch eine stufenlose Einstellung der Ausbringrate und ist insofern besonders vorteilhaft. Gegebenenfalls kann auch die Möglichkeit der Vorsehung mehrerer Öffnungen unterschiedlichen Querschnitts mit der Vorsehung von Öffnungen variablen Querschnitts kombiniert werden, so daß beispielsweise eine Öffnung für Ausbringraten von 0 bis 16 g/10 s und eine zweite Öffnung variablen Querschnitts für eine Ausbringrate von 16 bis 31 g/10 s zuständig ist.In addition, it is also possible to design the openings in the rotatable or displaceable element so that their cross section varies depending on the position before or in the outlet. For example, slot-shaped openings are conceivable in which the slot widens from one end to the other. Now, if the widest point of the slot brought before or in the outlet of the spray head, the discharge rate is maximum. The provision of the rotatable or displaceable element with openings of variable cross section also allows a stepless adjustment of the discharge rate and is therefore particularly advantageous. Optionally, the possibility of providing a plurality of apertures of different cross-section may be combined with the provision of variable cross-section apertures such that, for example, an opening for discharge rates of 0 to 16 g / 10 s and a second opening of variable cross-section for a discharge rate of 16 to 31 g / 10 s is responsible.
Besondere Bedeutung besitzt die erfindungsgemäße Sprühdose im Bereich der Lacksprühdosen, bei der der zu versprühende Stoff einen Lack, ein Lackiervorbereitungsmittel oder ein sonstiger Farbstoff ist. Die besondere Bedeutung in diesem Bereich ergibt sich, wie eingangs bereits ausgeführt, daraus, daß gerade beim Lackieren ein gleichmäßiges und kontrolliertes Sprühen von besonderer Bedeutung ist. Grundsätzlich ist die Erfindung jedoch für sämtliche Sprühdosen verwendbar.Particular importance of the inventive spray can in the field of paint spray cans, in which the substance to be sprayed is a paint, a paint preparation or other dye. The special importance in this area results, as already stated, from the fact that especially during painting a uniform and controlled spraying is of particular importance. In principle, however, the invention can be used for all spray cans.
Neben der erfindungsgemäßen Sprühdose betrifft die Erfindung auch den Sprühkopf, wie er als Teil einer Sprühdose der zuvor beschriebenen Art verwendbar ist.In addition to the spray can according to the invention, the invention also relates to the spray head, as it is usable as part of a spray can of the type described above.
Grundsätzlich ist es auch möglich, verschiedene Merkmale miteinander zu kombinieren. Beispielsweise kann bei Verwendung eines Nadelventils zur Regulierung der Ausbringrate zusätzlich vor dem Auslaß ein verdreh- oder verschiebbares Element vorgesehen werden, das verschiedene Öffnungen unterschiedlicher Größe aufweist.In principle, it is also possible to combine different features with each other. For example, when using a needle valve to regulate the Ausbringrate additionally provided in front of the outlet, a rotatable or displaceable element having different openings of different sizes.
Die Erfindung wird anhand der beigefügten Figuren weiter verdeutlicht. Es zeigen:
Figur 1- einen Sprühkoft im Querschnitt gemäß einer nicht erfindungsgemäßen Ausführungsform;
Figur 2- einen Sprühkopf im Querschnitt gemäß einer nicht erfindungsgemäßen Ausführungsform;
Figur 3- einen Sprühkopf im Querschnitt gemäß einer erfindungsgemäßen Ausführungsform;
Figur 4- einen Sprühkopf im Querschnitt gemäß einer nicht erfindungsgemäßen Ausführungsform.
- FIG. 1
- a Sprühkoft in cross-section according to a non-inventive embodiment;
- FIG. 2
- a spray head in cross-section according to a non-inventive embodiment;
- FIG. 3
- a spray head in cross-section according to an embodiment of the invention;
- FIG. 4
- a spray head in cross-section according to a non-inventive embodiment.
In
Um die Ausbringrate regulieren zu können, verfügt der Sprühkopf 1 quer zur axialen Bohrung 3 über eine Ausnehmung 6 zur Aufnahme einer Nadel 5, welche an ihrer Spitze einen Konus 7 aufweist. Dieser Konus 7 mündet in den Spalt 8 und verschließt diesen bei Bedarf mehr oder weniger vollständig. Die Nadel 5 verfügt über ein Gewinde und kann mit Hilfe des Griffes 10 mehr oder weniger stark eingeschraubt werden. In vollständig eingeschraubten Zustand ist der Spalt 8 weitgehend verschlossen, da der Konus 7 an den Spalt 8 angrenzt und die Verbindung von Auslaß 9 und axialer Bohrung 3 unterbricht. Wird nun die Nadel 5 weiter aus dem Sprühkopf 1 herausgeschraubt, so wird der Zwischenraum zwischen Spalt 8 und Konus 7 der Nadel 5 größer und entsprechend mehr Sprühgut kann austreten. Mit Hilfe eines solchen Nadelventils 5 ist eine besonders feine Dosierung möglich.In order to regulate the discharge rate, the
In
In der in
Gemäß dem in
Claims (7)
- A spray head usable as a component of an aerosol can, wherein the spray head (1) serves to deliver a material to be sprayed into the surroundings, the spray head (1) has an axial bore (3), through which the material to be sprayed is conducted into the spray head (1), the spray head (1) has an adjustment device to regulate the delivery rate and situated in the spray head (1) transverse to the axial bore (3) there is a lateral bore (15) in communication with it with an outlet at one end, characterised in that engaging in the lateral bore (15) from the other end of the lateral bore (15) there is a rotatable, cylindrical element (16), which slightly overlaps with the axial bore (3) and has a bevel or rounded portion (17) on at least one side, which, when the bevel or rounded portion (17) is moved over the axial bore (3) by rotation of the cylindrical element (16), opens a flow opening (18) from the axial bore (3) into the lateral bore (15).
- A spray head as claimed in Claim 1, characterised in that the spray head (1) has a rotatable or slidable element (25) with one or more openings (26, 26), which are movable in front of or into the outlet (9).
- A spray head as claimed in Claim 2, characterised in that the rotatable or slidable element (25) has a plurality of openings (26, 27) of different area.
- A spray head as claimed in Claim 2 or 3, characterised in that one or more openings (26, 27) are constructed in the form of round and/or fan-shaped nozzles.
- A spray head as claimed in one of Claims 2 to 4, characterised in that the rotatable or slidable element (25) has one or more openings (26, 27) whose area varies depending on their position in front or in the outlet (9).
- An aerosol can consisting of a nozzle body, which contains a propellant and a material to be sprayed, a valve, through which, when actuated, the material to be sprayed is propelled, and a spray head (1) as claimed in one of Claims 1 to 5, which serves to deliver the material to be sprayed into the surroundings by actuation of the valve.
- An aerosol can as claimed in Claim 6, characterised in that the material to be sprayed is a paint, a painting preparation agent or some other colourant.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/EP2003/012843 WO2005051802A1 (en) | 2003-11-17 | 2003-11-17 | Aerosol can |
Publications (2)
Publication Number | Publication Date |
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EP1851136A1 EP1851136A1 (en) | 2007-11-07 |
EP1851136B1 true EP1851136B1 (en) | 2009-05-27 |
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Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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EP03782207A Revoked EP1851136B1 (en) | 2003-11-17 | 2003-11-17 | Sprayhead and aerosol can with such a sprayhead |
Country Status (9)
Country | Link |
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US (1) | US8528837B2 (en) |
EP (1) | EP1851136B1 (en) |
AT (1) | ATE432234T1 (en) |
AU (1) | AU2003289875A1 (en) |
CA (1) | CA2546478C (en) |
DE (2) | DE20321359U1 (en) |
DK (1) | DK1851136T3 (en) |
ES (1) | ES2327730T3 (en) |
WO (1) | WO2005051802A1 (en) |
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US8344056B1 (en) | 2007-04-04 | 2013-01-01 | Homax Products, Inc. | Aerosol dispensing systems, methods, and compositions for repairing interior structure surfaces |
US9382060B1 (en) | 2007-04-05 | 2016-07-05 | Homax Products, Inc. | Spray texture material compositions, systems, and methods with accelerated dry times |
USD648216S1 (en) | 2010-01-14 | 2011-11-08 | S.C. Johnson & Son, Inc. | Actuator nozzle for a diffusion device |
USD657242S1 (en) | 2010-01-14 | 2012-04-10 | S.C. Johnson & Son, Inc. | Container with nozzle |
DE102011009627B4 (en) | 2011-01-28 | 2020-06-10 | Peter Kwasny Gmbh | Variable spray head |
US9248457B2 (en) | 2011-07-29 | 2016-02-02 | Homax Products, Inc. | Systems and methods for dispensing texture material using dual flow adjustment |
US9156042B2 (en) | 2011-07-29 | 2015-10-13 | Homax Products, Inc. | Systems and methods for dispensing texture material using dual flow adjustment |
WO2013019683A1 (en) * | 2011-07-29 | 2013-02-07 | Homax Products, Inc. | Systems and methods for dispensing texture material using dual flow adjustment |
US9156602B1 (en) | 2012-05-17 | 2015-10-13 | Homax Products, Inc. | Actuators for dispensers for texture material |
US9435120B2 (en) | 2013-03-13 | 2016-09-06 | Homax Products, Inc. | Acoustic ceiling popcorn texture materials, systems, and methods |
US9126212B2 (en) * | 2013-05-21 | 2015-09-08 | Global Aerosol Llc | Adjustable dialed spray nozzle |
US9776785B2 (en) | 2013-08-19 | 2017-10-03 | Ppg Architectural Finishes, Inc. | Ceiling texture materials, systems, and methods |
US20150122907A1 (en) * | 2013-11-04 | 2015-05-07 | Babek Khamenian | Adjustable Scalloped Needle Valve for a Spray Nozzle |
WO2016029245A1 (en) * | 2014-08-27 | 2016-03-03 | Stojko Matthew | A nozzle head |
USD787326S1 (en) | 2014-12-09 | 2017-05-23 | Ppg Architectural Finishes, Inc. | Cap with actuator |
AU2017264964B2 (en) | 2016-05-13 | 2021-11-25 | MSI Coatings Inc. | System and method for using a VOC free low radiant flux LED UV curable composition |
JP2017214128A (en) * | 2016-06-02 | 2017-12-07 | 株式会社丸一 | Aerosol Button |
US10337738B2 (en) | 2016-06-22 | 2019-07-02 | General Electric Company | Combustor assembly for a turbine engine |
US11111071B2 (en) | 2017-07-31 | 2021-09-07 | V1 Enterprises, LLC | Mixing apparatus, method of making the mixing apparatus and using the mixing apparatus |
US11338320B1 (en) * | 2018-02-03 | 2022-05-24 | MSI Coatings Inc. | Composition for aerosol cans, method of making and using the same |
CN108971106A (en) * | 2018-09-20 | 2018-12-11 | 深圳市安思科电子科技有限公司 | A kind of cleaning device for photo-voltaic power generation station |
US11370600B1 (en) * | 2018-09-21 | 2022-06-28 | B'laster Llc. | Spray can actuator |
USD913067S1 (en) | 2019-07-01 | 2021-03-16 | V1 Enterprises, LLC | Mixing apparatus |
US11440726B1 (en) * | 2021-03-26 | 2022-09-13 | Silgan Dispensing Systems Corporation | Aerosol sprayers and methods of using the same |
WO2023027573A1 (en) * | 2021-08-24 | 2023-03-02 | Samurai 2K Aerosol Sdn. Bhd. | A spray head of an aerosol container |
US11820584B2 (en) | 2022-02-26 | 2023-11-21 | Silgan Dispensing Systems Corporation | Aerosol sprayers and methods of using the same |
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2003
- 2003-11-17 CA CA2546478A patent/CA2546478C/en not_active Expired - Lifetime
- 2003-11-17 AT AT03782207T patent/ATE432234T1/en active
- 2003-11-17 US US10/580,865 patent/US8528837B2/en active Active
- 2003-11-17 DE DE20321359U patent/DE20321359U1/en not_active Expired - Lifetime
- 2003-11-17 DE DE50311562T patent/DE50311562D1/en not_active Expired - Lifetime
- 2003-11-17 EP EP03782207A patent/EP1851136B1/en not_active Revoked
- 2003-11-17 ES ES03782207T patent/ES2327730T3/en not_active Expired - Lifetime
- 2003-11-17 DK DK03782207T patent/DK1851136T3/en active
- 2003-11-17 AU AU2003289875A patent/AU2003289875A1/en not_active Abandoned
- 2003-11-17 WO PCT/EP2003/012843 patent/WO2005051802A1/en active Application Filing
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US3407977A (en) * | 1966-04-15 | 1968-10-29 | Ruggeri Gianantonio | Actuating and delivering cap for dispensers |
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Publication number | Publication date |
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ES2327730T3 (en) | 2009-11-03 |
CA2546478C (en) | 2012-03-27 |
ATE432234T1 (en) | 2009-06-15 |
US8528837B2 (en) | 2013-09-10 |
AU2003289875A1 (en) | 2005-06-17 |
DE20321359U1 (en) | 2007-01-04 |
DE50311562D1 (en) | 2009-07-09 |
DK1851136T3 (en) | 2009-09-07 |
WO2005051802A1 (en) | 2005-06-09 |
EP1851136A1 (en) | 2007-11-07 |
CA2546478A1 (en) | 2005-06-09 |
US20070272765A1 (en) | 2007-11-29 |
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