EP1851136B1 - Sprayhead and aerosol can with such a sprayhead - Google Patents

Sprayhead and aerosol can with such a sprayhead Download PDF

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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
aerosol
spray
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
Application number
EP03782207A
Other languages
German (de)
French (fr)
Other versions
EP1851136A1 (en
Inventor
Peter Kwasny
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.)
Peter Kwasny GmbH
Original Assignee
Peter Kwasny GmbH
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
Family has litigation
Application filed by Peter Kwasny GmbH filed Critical Peter Kwasny GmbH
Priority to PCT/EP2003/012843 priority Critical patent/WO2005051802A1/en
Publication of EP1851136A1 publication Critical patent/EP1851136A1/en
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=34626351&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP1851136(B1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application granted granted Critical
Publication of EP1851136B1 publication Critical patent/EP1851136B1/en
Application status is Revoked legal-status Critical
Anticipated expiration legal-status Critical

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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B05SPRAYING OR ATOMISING IN GENERAL; APPLYING LIQUIDS OR OTHER FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05BSPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B1/00Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means
    • B05B1/14Nozzles, 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
    • B05B1/16Nozzles, 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
    • B05B1/1627Nozzles, 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
    • B05B1/1636Nozzles, 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
    • B05B1/1645Nozzles, 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
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B05SPRAYING OR ATOMISING IN GENERAL; APPLYING LIQUIDS OR OTHER FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05BSPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B1/00Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means
    • B05B1/30Nozzles, 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
    • B05B1/3013Nozzles, 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
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B05SPRAYING OR ATOMISING IN GENERAL; APPLYING LIQUIDS OR OTHER FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05BSPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B1/00Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means
    • B05B1/30Nozzles, 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
    • B05B1/3026Nozzles, 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
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B05SPRAYING OR ATOMISING IN GENERAL; APPLYING LIQUIDS OR OTHER FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05BSPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B1/00Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means
    • B05B1/30Nozzles, 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
    • B05B1/3033Nozzles, 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
    • B05B1/304Nozzles, 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
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B05SPRAYING OR ATOMISING IN GENERAL; APPLYING LIQUIDS OR OTHER FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05BSPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B1/00Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means
    • B05B1/30Nozzles, 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
    • B05B1/3033Nozzles, 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
    • B05B1/304Nozzles, 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
    • B05B1/3046Nozzles, 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
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65DCONTAINERS 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
    • B65D83/00Containers or packages with special means for dispensing contents
    • B65D83/14Containers 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
    • B65D83/44Valves specially adapted therefor; Regulating devices

Abstract

The invention relates to a aerosol can comprising a body containing one type of propellant agent and aerosol product, a valve (5) whose activation enables to spray said aerosol product and a spray head (1) for releasing the product to environment by actuating the valve. The product spraying speed of the inventive aerosol can is adjustable by an adjusting device provided in the spray head (1). Said invention is mainly used for aerosol varnish cans taking into consideration that for such applications it is necessary to have a controlled and uniformed spraying speed in order to avoid varnish defects.

Description

  • 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.
  • Spray cans, as from the US 3 407 977 known, have found in many applications for many years, a wider spread. In addition to various other substances to be sprayed, however, 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. In contrast to these devices paint spray cans, however, 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 However, spray cans are also known with an application rate of up to 35 g / 10 s.
  • 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.
  • 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 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.
  • 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.
  • 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.
  • 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.
  • 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.
  • 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.
  • 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.
  • 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.
  • 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.
  • 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.
  • 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.
  • 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.
  • The invention will be further clarified with reference to the attached figures. Show it:
  • 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 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.
  • 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.
  • In 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.
  • In the in FIG. 3 shown embodiment of the invention, 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. In the lateral bore 15, a cylindrical element 16 is recessed from the opposite side of the outlet 9, which covers the axial bore 3. At the inner end of the cylindrical member 16, 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. Between the maximum and minimum positions described a variety of other settings are conceivable, so that a quasi-continuous regulation of Ausbringrate is possible. For this purpose, 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.
  • According to the in FIG. 4 shown 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.

Claims (7)

  1. 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).
  2. 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).
  3. 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.
  4. 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.
  5. 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).
  6. 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.
  7. 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.
EP03782207A 2003-11-17 2003-11-17 Sprayhead and aerosol can with such a sprayhead Revoked EP1851136B1 (en)

Priority Applications (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
EP1851136A1 EP1851136A1 (en) 2007-11-07
EP1851136B1 true EP1851136B1 (en) 2009-05-27

Family

ID=34626351

Family Applications (1)

Application Number Title Priority Date Filing Date
EP03782207A Revoked EP1851136B1 (en) 2003-11-17 2003-11-17 Sprayhead and aerosol can with such a sprayhead

Country Status (9)

Country Link
US (1) US8528837B2 (en)
EP (1) EP1851136B1 (en)
AT (1) AT432234T (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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US9156042B2 (en) 2011-07-29 2015-10-13 Homax Products, Inc. Systems and methods for dispensing texture material using dual flow adjustment
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US3407977A (en) * 1966-04-15 1968-10-29 Ruggeri Gianantonio Actuating and delivering cap for dispensers

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DE50311562D1 (en) 2009-07-09
CA2546478A1 (en) 2005-06-09
AU2003289875A1 (en) 2005-06-17
US8528837B2 (en) 2013-09-10
DK1851136T3 (en) 2009-09-07
CA2546478C (en) 2012-03-27
US20070272765A1 (en) 2007-11-29
AT432234T (en) 2009-06-15
DE20321359U1 (en) 2007-01-04
ES2327730T3 (en) 2009-11-03
EP1851136A1 (en) 2007-11-07

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