KR20120027357A - A cleaner head - Google Patents

A cleaner head Download PDF

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Publication number
KR20120027357A
KR20120027357A KR1020117030040A KR20117030040A KR20120027357A KR 20120027357 A KR20120027357 A KR 20120027357A KR 1020117030040 A KR1020117030040 A KR 1020117030040A KR 20117030040 A KR20117030040 A KR 20117030040A KR 20120027357 A KR20120027357 A KR 20120027357A
Authority
KR
South Korea
Prior art keywords
bristles
body
brush bar
preferably
surface
Prior art date
Application number
KR1020117030040A
Other languages
Korean (ko)
Inventor
스테픈 벤쟈민 코트니
토마스 제임스 더닝 팔로우즈
Original Assignee
다이슨 테크놀러지 리미티드
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
Priority to GB0909899A priority Critical patent/GB2470920A/en
Priority to GB0909899.7 priority
Application filed by 다이슨 테크놀러지 리미티드 filed Critical 다이슨 테크놀러지 리미티드
Publication of KR20120027357A publication Critical patent/KR20120027357A/en

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Classifications

    • AHUMAN NECESSITIES
    • A47FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47LDOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L9/00Details or accessories of suction cleaners, e.g. mechanical means for controlling the suction or for effecting pulsating action; Storing devices specially adapted to suction cleaners or parts thereof; Carrying-vehicles specially adapted for suction cleaners
    • A47L9/02Nozzles
    • A47L9/04Nozzles with driven brushes or agitators
    • A47L9/0461Dust-loosening tools, e.g. agitators, brushes
    • A47L9/0466Rotating tools
    • AHUMAN NECESSITIES
    • A47FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47LDOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L13/00Implements for cleaning floors, carpets, furniture, walls, or wall coverings
    • A47L13/10Scrubbing; Scouring; Cleaning; Polishing
    • A47L13/40Cleaning implements actuated by electrostatic attraction; Devices for cleaning same; Magnetic cleaning implements
    • AHUMAN NECESSITIES
    • A47FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47LDOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L9/00Details or accessories of suction cleaners, e.g. mechanical means for controlling the suction or for effecting pulsating action; Storing devices specially adapted to suction cleaners or parts thereof; Carrying-vehicles specially adapted for suction cleaners
    • A47L9/02Nozzles
    • A47L9/04Nozzles with driven brushes or agitators
    • A47L9/0461Dust-loosening tools, e.g. agitators, brushes
    • A47L9/0466Rotating tools
    • A47L9/0477Rolls

Abstract

Disturbance device 80 for surface treatment instruments is 1 × 10 -5 ? And a rotatable body having an outer surface comprising electrically conductive hair 84 formed substantially from filaments having a sheet resistance of 1 × 10 12 Ω / sq.

Description

Cleaner head {A CLEANER HEAD}

The present invention relates to a disturbance device for a surface treatment mechanism and a cleaner head for a surface treatment mechanism. In a preferred embodiment the invention relates to a cleaner head for a vacuum cleaning appliance.

The vacuum cleaner generally comprises a body comprising a dirt / dust separation device, a cleaner head connected to the body having a suction opening, and a motor driven fan unit for drawing dirt-loaded air through the suction opening. do. Soiled air is delivered to the separation device so that dirt and dust can be separated from the air before it is released to the atmosphere.

The suction opening faces downward to face the surface to be cleaned. The separation device may be in the form of a filter, a filter bag or a cyclone device as known. The present invention is not concerned with the properties of the separation device and thus can be applied to vacuum cleaners using such devices or other suitable separation devices.

Generally, a disturber driven in the form of a brush bar is supported on the cleaner head so as to project to a small extent from the suction opening. This brush bar works primarily when a vacuum cleaner is used to clean the carpeted surface. The brush bar comprises an elongated cylindrical core, which has bristles extending radially outward therefrom. The brush bar can be driven by an air turbine or by an electric motor powered by a power supply given from the body of the cleaner. The brush bar can be driven through the drive belt by a motor to rotate in the suction opening, or can be driven directly by the motor. The rotation of the brush bar causes the bristles to sweep along the surface of the carpet to be cleaned, freeing dirt and dust and picking up debris. Due to the aspiration of air, the air flows around the brush rock under the base plate to help lift dirt and dust off the surface of the carpet and then transfer the dirt and dust from the suction opening through the cleaner head to the separation unit. Done.

Bristles of brush bars are usually formed of nylon. Nylon bristles provide acceptable cleaning performance on carpeted floors, while nylon bristles can be used on some hard floor surfaces, such as laminate, wood and vinyl surfaces, which attract fine dust and talc-like powders onto the floor. When the floor tool is used, it is found that static electricity is generated. The static electricity can hinder the cleaning performance of the cleaner head on this bottom because the sweeping action of the nylon bristles is not sufficient to overcome the force of attracting fine dust to the bottom.

In a first aspect, the present invention provides a disturbing device for a surface treatment apparatus, the disturbing device comprising a rotatable body having an outer surface comprising an electrically conductive yarn.

By providing a rotatable body with an electrically conductive outer surface, static electricity on the floor to be cleaned can be discharged upon contact between the body and the bottom surface. Thus, fine dust and powder that would otherwise be attached to the bottom surface may fall off the floor surface by the body. Preferably having an outer surface comprising hair similar to the raised or fluffing surface of the carpet, rug or cloth, it can prevent the bottom surface from being scratched or other marks upon contact with the rotating body.

The sheet resistance of the hair is preferably 1 × 10 −5 ? 1 × 10 12 Ω / sq (ohms per square). The values of sheet resistance mentioned here were measured using the ASTM D257 test method. If a material having a sheet resistance in this range is selected, static electricity on the bottom surface can be effectively discharged by the disturbing device.

The hair preferably covers at least half of the outer surface of the body, more preferably at least 80% of the outer surface of the body and even more preferably substantially covers the outer surface of the body, thus cleaning the cleaner comprising the disturbance device. When the head moves over the floor, there is no dirt or dust on the floor.

Therefore, in the second aspect, the present invention provides 1 × 10 −5 ? A disturbance device for a surface treatment apparatus is provided that includes a rotatable body having an outer surface substantially covered with a filament having a sheet resistance of 1 × 10 12 Ω / sq.

The apparatus preferably comprises a filament formed into one of a conductive acrylic or other composite material, such as metal, carbon fibers, carbon composites, Thunderon?. For example, materials containing carbon particles and carbon fibers are generally 1 × 10 3 ? Although it has a sheet resistance of 1 × 10 6 Ω / sq, metal materials generally have much lower sheet resistance, generally lower than 1 Ω / sq. Other suitable electrostatic dissipation materials are typically 1 × 10 5 ? It has a sheet resistance of 1 × 10 12 Ω / sq.

The filaments are preferably woven into a flexible carrier member located around the body. For example, the carrier may be in the form of a strip that is wound around the body such that the member is preferably substantially free of gaps between the turns of the carrier member. The carrier member is preferably attached to the body using an adhesive.

The length of the filament is preferably 4? 10 mm. Preferably the filament is 5? Have a diameter of 20 μm.

The rotatable body may comprise other surface disturbing means. This other surface disturbing means is adapted to disturb dirt and dust from the carpeted floor and is therefore preferably relatively stiff compared to electrically conductive hair or filaments. For example, the bristles or filaments of the other blade disturbance means may have a diameter larger than the bristles or filaments of the electrically conductive hair.

The other surface disturbing means may be formed of an electrically insulating plastic material such as nylon, and thus may have a sheet resistance different from that of electrically conductive hair or filament. The sheet resistance of the other surface disturbing means is preferably 1 × 10 12 ? 1 × 10 16 Ω / sq. Alternatively, the other surface disturbing means may be formed of a material similar to electrically conductive hair or filament.

The other surface disturbing means can be dispersed in the filaments of the electrically conductive hair. This other surface disturbing means is preferably arranged in a plurality of rows along the body, which rows are preferably discontinuous. For example, where other surface disturbing means comprise a plurality of bristles, these bristles are preferably arranged in one or more rows of tufts or clusters of bristles that are connected to and spaced along the body.

The disturbing device is preferably in the form of a rotatable brush bar.

In a third aspect, the present invention provides a cleaner head for a surface treatment mechanism, the cleaner head comprising a housing and a disturbing device as described above. If the disturbing device is in the form of a rotatable brush bar, the cleaner head may comprise two such blush bars. This brush bar is preferably rotatable in opposite directions.

In a fourth aspect, the present invention provides a surface treatment mechanism comprising a cleaner head or a disturbing device as described above.

The term "surface treatment mechanism" has a broad meaning and includes various machines having a body and a head moving over the surface in order to scrape or treat the surface in some way. Surface treatment instruments are simply machines that disturb the surface, such as carpet sweepers, machines that only suck on the surface to pull material away from the surface (eg vacuum cleaners (dry, wet or wet / dry combined), polished) Machine for applying substances to surfaces, such as betting / waxing machines, and pressure washing machines and shampoo machines.

Points described in connection with the first aspect of the present invention are described in the second? The same applies to the four aspects, and vice versa.

Embodiments of the present invention will now be described by way of example only with reference to the accompanying drawings.

1 is a front perspective view of the floor tool from above;
FIG. 2 is a front perspective view from below of the floor tool of FIG. 1; FIG.
3 is a bottom view of the floor tool of FIG. 1.
4 is an exploded view of the brush bar of the floor tool of FIG. 1.
5 is a perspective view of the brush bar of FIG. 4.
FIG. 6 is a plan view of the brush bar of FIG. 4. FIG.
FIG. 7 is a cross-sectional view taken along line A-A shown in FIG. 3 when the floor tool is on a carpeted floor. FIG.
8 is a cross-sectional view taken along line A-A shown in FIG. 3 when the floor tool is on a hard bottom surface.
9 is a perspective view of a modified version of the brush bar of FIG. 4.
10 is a perspective view of an alternative brush bar used in the floor tool of FIG. 1.

Referring first to FIGS. 1-3, the floor tool 10 includes a cleaner head 12 that is rotatably attached to the connection 14. The free end of the connection 14 may be attached to a rod, hose or other duct of a cleaning device (not shown). The cleaner head 12 includes a housing 16 and a bottom plate or bottom plate 18, which includes a suction opening 20 through which dirt-bearing fluid flow passes when entering the cleaner head 12. . The housing 16 is formed with a suction passage from the suction opening 20 to the outlet duct 22 located behind the housing 16. The housing 16 preferably comprises a front bumper 23. The bottom plate 18 includes a plurality of support members 24 mounted in recesses of the bottom plate 18 to support the cleaner head 12 on the bottom surface and in the form of rolling elements. With reference to FIGS. 7 and 8, the support element 24 supports the base plate 18 on the bottom surface when the cleaner head 12 is on a hard bottom surface 66 and the cleaner head 12 is carpeted. When on the floor 64, it is intended to sink into the carpet's hair so that the floor surface of the base 18 is in contact with the fibers of the carpet. The base plate 18 is preferably pivotable relative to the housing 16 such that the base plate 18 can ride smoothly over the carpeted floor 64 during cleaning.

The connection 14 comprises a conduit 26 supported by a pair of wheels 28, 30. This conduit 26 is a front portion 32 connected to the outlet duct 22 and a rear portion 32 which is pivotally connected to this front portion 32 and which can also be connected to a rod, hose or other duct of a cleaning appliance. The cleaning apparatus includes a dirt / dust separation device and a motor-driven fan unit, the fan uni for sucking dirt loaded air through the suction opening 30 from the bottom surface. The flexible hose 36 extends between them in the interior of the front portion 32 and the rear portion 34 of the conduit 26.

The cleaner head 12 includes a disturbing device for disturbing dirt and dust on the bottom surface. In this embodiment, the disturbing device comprises a rotatable brush bar 40 installed in the brush bar chamber 42 of the housing 16. The brush bar chamber 42 is formed in part from a generally semicylindrical portion 43 of the housing 16, which is preferably formed of a transparent material. Brush bar 40 is driven by a motor (not shown) located in motor housing 44 of housing 16. The motor is electrically connected to the distal end at the rear end 34 of the conduit 26, which is connected to the distal end of the matching profile located in the duct of the cleaning apparatus so that power can be supplied to the motor. Do it.

The brush bar 40 is connected to the motor by a drive mechanism located at least partially within the drive mechanism housing 46 to be isolated from the air passing through the suction passage. One end of the brush bar 40 is connected to a drive mechanism so that the brush bar 40 can be driven by a motor, and the other end of the brush bar 40 is provided at the side wall of the brush bar chamber 42. It is rotatably supported by the cap 48.

The brush bar 40 is shown in more detail in FIGS. 4-6. The brush bar 40 includes an elongated body 50 having two different kinds of disturbing means, the disturbing means for disturbing dirt and dust from the bottom surface when the brush bar 40 is driven by a motor. . Each different kind of disturbing means protrudes from the suction opening 20 in the base plate 18 when the brush bar 40 is driven by a motor. A spindle 51 is installed at one end of the body 50, which is connected to the end cap 48.

The first disturbing means installed in the body 50 of the brush bar 40 comprises a relatively short and preferably relatively stiff bristles 52. These bristles 52 are preferably formed of nylon. In this embodiment, the comparatively short bristles 52 are arranged in two helical rows that are angularly spaced along the body 50. Within each row, relatively short bristles 52 are arranged in a series of clusters or tufts 53 that are angularly spaced along the row. Each of the liquors 53 is preferably about 100? Contains 150 bristles, each tuft (53) has 2? It has a diameter of 4 mm. The diameter of each bristle 52 is preferably 100? 200 μm. The length of the relatively short bristles 52 is such that when the bottom tool 50 is assembled, the tips of these bristles 52 protrude below the plane between the lowermost ends of the support members 24 during the rotation of the brush bar 40. It is chosen not to be.

The second disturbing means installed in the body 50 of the brush bar 40 comprises a relatively long and preferably relatively soft bristle 54. As shown in FIG. 7, the relatively long bristles 54 protrude beyond the relatively short bristles 52 radially outward from the body 50. During rotation of the body 50, the relatively short bristles 52 sweep through the cylindrical space with diameter D1, and the relatively long bristles 54 sweep through the cylindrical space with diameter D2 greater than D1. . The difference between D1 and D2 is preferably 1? 10 mm, more preferably 2? 6 mm. In contrast to the relatively short bristles 52, the length of the relatively long bristles 54 extends beyond the plane between the lowermost end portions of the support member 24 during the rotation of the brush bar 40. It is selected to protrude.

The relatively long bristles 54 are formed of a material having a lower sheet resistance than the material forming the relatively short bristles 52. The sheet resistance of the relatively long bristle 54 is preferably 1 × 10 −5 ? 1 × 10 12 Ω / sq. In comparison, the sheet resistance of the relatively short bristles 52 is preferably higher than 1 × 10 12 Ω / sq. The relatively long bristles 54 may be made of an electrically conductive material. The bristles may be formed of metal, graphite, conductive acrylic or other composite materials, but in this embodiment the relatively long bristles 54 comprise carbon fiber bristles. The diameter of each bristle 54 is preferably 5? 20 μm.

The body 50 comprises a plurality of consecutive rows of angularly spaced, relatively long bristles 54, which also preferably extend helically along the body 50. In this embodiment, the body 50 comprises four consecutive rows of relatively long bristles 54, each row being angularly spaced from a row of tufts 53 formed of relatively short bristles 52. Each row of relatively long bristles 54 is preferably 20? Per 1 mm length. Contains 100 bristles, 0.25? It has a thickness of 2 mm.

With particular reference to FIG. 4, in this embodiment, adjacent rows of relatively long bristles 54 are formed of a single bristle strip 56. Each strip 56 is preferably formed by attaching a generally rectangular elongate flexible carrier member to a row of bristles such that each row of bristles 54 protrudes outward from each long side edge of the carrier member. The carrier member may be attached to the bristles row by squelching or using an adhesive. Then, each strip 56 is positioned in each helical groove 58 formed in the body 50 so that the end of the bristles protrude out from the body 50. The strip 50 is connected to the body 50 by a helical connector 60 installed in the strip 56, which connector 60 is connected to the body 50 using screws 62 inserted into the holes formed therein. Connected to 50. The screw 62 can be pushed through the carrier member or can be inserted through a hole formed in the carrier member. An adhesive tape may be applied to at least one side of each carrier member to align the strips 56 in the grooves 58 such that the ends of the bristles protrude in a constant amount from the body 50 along the length of the body 50. .

Referring to FIG. 7, when the cleaner head 12 is positioned on the carpeted floor 64, the support member 24 sinks into the carpet's fur, and the bottom surface of the base 18 contacts the fibers of the carpet. Done. Since both the relatively short bristles 52 and the relatively long bristles 54 protrude from the suction opening 20 when the brush bar 40 rotates, two different types of bristles can disturb dirt and dust from the floor surface. . When an air stream is generated through the suction passage of the cleaner head 12, the dirt and dust is accompanied by the air stream and passed through the floor tool 10 to the cleaning apparatus.

As the cleaner head 12 moves from the carpeted floor 64 onto the hard floor 66, the base 18 is separated from the hard floor 66, as shown in FIG. 8. . Since the tips of the relatively short bristles 52 do not protrude below the plane between the lowest distal ends of the support member 24, these bristles do not contact the hard bottom 66, so that these bristles have a hard bottom ( 66) Scratches and other marks are prevented. However, as the relatively long bristles 54 protrude beyond the plane, these bristles are swept across the bottom surface in contact with the hard bottom 66 by the rotation of the brush bar 40. Because of the relatively low sheet resistance of the relatively long bristles 54, the static electricity on the hard bottom 66 is discharged upon contact with the relatively long bristles 54, and thus fine to attach to the hard bottom 66. Dust and powder are brought off the floor by these bristles and entrained in the air stream.

The present invention is not limited to the above detailed description. Those skilled in the art will be able to contemplate the modifications.

For example, in the above embodiment, the cleaner head 12 includes a brush bar 40 driven by a motor. However, the cleaner head 12 may include alternative means for disturbing or otherwise treating the surface to be cleaned. For example, brush bar 40 may be driven by an air turbine rather than a motor.

The relatively short bristles 52 can be formed of a material similar to the relatively long bristles 54 to discharge static electricity on the carpeted floor, so 1 × 10 −5 ? It can have a sheet resistance of 1 × 10 12 Ω / sq.

Each strip 56 can be modified such that the bristles protrude only from one of the relatively long side edges of the carrier member. Thus, each strip 56 may be in the form of a brush, with the bristles extending outward from only one side of the brush. A modified version of the brush bar 40 'is shown in FIG. 9, in which each strip 56 has been modified as described above. As a result of this modification of the strip 56, the bristles 54 protrude outwards from only one side of each connecting member 60. Thus, the brush bar 40 'includes only two consecutive rows of relatively long bristles 54, the rows of tufts 53 and the rows of relatively long bristles 54 being the body 50 of the brush bar 40'. It is alternately placed around. As in the case of the brush bar 40, the relatively long bristles 54 protrude beyond the relatively short bristles 52 radially outward from the body 50.

The different types of bristles 52 and 54 need not be spaced apart from each other. Brush bar 40 may include a plurality of rows of bristles, clumps or tufts. For example, relatively short bristles 52 may be dispersed within each row of relatively long bristles 54. Alternatively, relatively long bristles 54 may be dispersed within each tuft 53 of relatively short bristles 52.

The disturbing means may take any form other than bristles, such as filaments sewn into a flexible or rigid strip material installed on the body 50 or a backing material connected to the body 50.

If the floor tool 10 is not to be used on a carpeted surface, the relatively short bristles 52 may not be necessary, and thus the brush bar 40 will only contain electrically conductive disturbing members. Thus, the brush bar 40 may only include a continuous row of surface disturbing members formed from relatively long bristles 54 as shown in FIGS. 2-8. Alternatively, the brush bar 40 can include different arrangements of surface disturbing members to discharge static electricity on the bottom surface.

For example, referring to FIG. 10, an alternative brush bar 80 used in the floor tool 10 includes a rotatable body 82 having an outer surface that includes an electrically conductive hair 84. In this embodiment, the fur 84 resembles a raised or fluffed surface of a carpet, rug or cloth, and includes filaments woven into a fabric carrier member 86 that is anchored to the body 82 using, for example, an adhesive. do. The length of the filaments of the hair 84 is preferably 4-15 mm, and the filaments preferably have a diameter of 5-20 μm.

These filaments are preferably formed of carbon fibers, but may alternatively be formed of metallic materials, conductive acrylic materials or other composite materials. Therefore, the sheet resistance of the filament of the hair 84 is preferably 1 × 10 −5 ? 1 × 10 12 Ω / sq. The fabric carrier member 86 may be in the form of a strip wound on the body 82 such that the hair 84 is substantially continuous and substantially covers the outer surface of the body 82. Alternatively, the carrier member 86 may be in the form of a cylindrical sleeve into which the body 82 is inserted.

If desired, relatively stiff bristles of clumps may be dispersed in the fur 84. Alternatively, strips of hair 84 may be wound around one or more helical rows of relatively stiff bristles that are previously attached to body 82. These bristles may be similar to the relatively short bristles 52 of the brush bar 40 and may therefore be arranged so as not to protrude beyond the filaments of the fur 84 radially outward.

Claims (10)

1 × 10 -5 ? A disturbance device for a surface treatment apparatus comprising a rotatable body having an outer surface substantially covered with a filament having a sheet resistance of 1 × 10 12 Ω / sq.
The method of claim 1,
The filament is formed of one of a metal, carbon fiber, conductive acrylic and a composite material.
The method according to claim 1 or 2,
The filament is woven into a flexible carrier member positioned around the body.
The method of claim 3, wherein
The carrier member is woven around the body.
The method of claim 4, wherein
And the carrier member is attached to the body.
The method according to any one of claims 1 to 6,
The body is a substantially cylindrical disturbance device.
The method according to any one of claims 1 to 6,
The filament is 5? Disturbance device having a diameter of 20 μm.
The method according to any one of claims 1 to 7,
Disturbance device in the form of a rotatable brush bar.
A cleaner head for a surface treatment apparatus comprising a disturbance device according to any one of claims 1 to 8.
A disturbance device for a surface treatment instrument described above substantially with reference to the accompanying drawings.
KR1020117030040A 2009-06-09 2010-05-25 A cleaner head KR20120027357A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
GB0909899A GB2470920A (en) 2009-06-09 2009-06-09 Agitating menas for a cleaning head
GB0909899.7 2009-06-09

Publications (1)

Publication Number Publication Date
KR20120027357A true KR20120027357A (en) 2012-03-21

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ID=40937114

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1020117030040A KR20120027357A (en) 2009-06-09 2010-05-25 A cleaner head

Country Status (8)

Country Link
US (2) US20100306958A1 (en)
EP (1) EP2440103B1 (en)
JP (1) JP2010284529A (en)
KR (1) KR20120027357A (en)
CN (1) CN101919669B (en)
AU (1) AU2010258414B2 (en)
GB (1) GB2470920A (en)
WO (1) WO2010142971A1 (en)

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DE112018000186T5 (en) 2017-04-20 2019-09-19 Lg Electronics Inc. Vacuum cleaner

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US20130212831A1 (en) 2013-08-22
CN101919669A (en) 2010-12-22
GB2470920A (en) 2010-12-15
CN101919669B (en) 2013-07-17
GB0909899D0 (en) 2009-07-22
JP2010284529A (en) 2010-12-24
EP2440103A1 (en) 2012-04-18
AU2010258414A1 (en) 2012-01-19
AU2010258414B2 (en) 2013-12-12
WO2010142971A1 (en) 2010-12-16
US20100306958A1 (en) 2010-12-09

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