EP2216444B1 - Engin destiné à la dispersion de matériau d'épandage sur des sols - Google Patents

Engin destiné à la dispersion de matériau d'épandage sur des sols Download PDF

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Publication number
EP2216444B1
EP2216444B1 EP10000331.8A EP10000331A EP2216444B1 EP 2216444 B1 EP2216444 B1 EP 2216444B1 EP 10000331 A EP10000331 A EP 10000331A EP 2216444 B1 EP2216444 B1 EP 2216444B1
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EP
European Patent Office
Prior art keywords
construction machine
dust protection
dust
spreading
protection elements
Prior art date
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Active
Application number
EP10000331.8A
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German (de)
English (en)
Other versions
EP2216444A2 (fr
EP2216444A3 (fr
Inventor
Christoph Menzenbach
Heiko Böhme
Cyrus Barimani
Günter HÄHN
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.)
Wirtgen GmbH
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Wirtgen GmbH
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Filing date
Publication date
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Publication of EP2216444A2 publication Critical patent/EP2216444A2/fr
Publication of EP2216444A3 publication Critical patent/EP2216444A3/fr
Application granted granted Critical
Publication of EP2216444B1 publication Critical patent/EP2216444B1/fr
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    • EFIXED CONSTRUCTIONS
    • E01CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01CCONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
    • E01C19/00Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving
    • E01C19/02Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving for preparing the materials
    • E01C19/025Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving for preparing the materials for preparing hydraulic-cement-bound mixtures of which at least one ingredient has previously been deposited on the surface, e.g. in situ mixing of concrete
    • EFIXED CONSTRUCTIONS
    • E01CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01CCONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
    • E01C19/00Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving
    • E01C19/12Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving for distributing granular or liquid materials
    • E01C19/20Apparatus for distributing, e.g. spreading, granular or pulverulent materials, e.g. sand, gravel, salt, dry binders
    • E01C19/201Apparatus for distributing, e.g. spreading, granular or pulverulent materials, e.g. sand, gravel, salt, dry binders with driven loosening, discharging or spreading parts, e.g. power-driven, drive derived from road-wheels
    • EFIXED CONSTRUCTIONS
    • E01CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01CCONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
    • E01C21/00Apparatus or processes for surface soil stabilisation for road building or like purposes, e.g. mixing local aggregate with binder
    • EFIXED CONSTRUCTIONS
    • E01CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01CCONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
    • E01C2301/00Machine characteristics, parts or accessories not otherwise provided for
    • E01C2301/50Methods or devices for preventing dust by spraying or sucking

Definitions

  • the invention relates to a construction machine for spreading material to be spread on soils, in particular a construction machine for spreading binders for soil stabilization.
  • the invention relates both to a construction machine, which is intended exclusively for application of the binder, as well as to a construction machine, in particular a stabilizer or recycler, which has a milling or mixing rotor, with which the binder immediately after deployment in the milled soil can be mixed.
  • binders into the soil to improve its incorporation and bearing capacity.
  • Typical applications for soil stabilization are the construction of roads, railways and industrial areas.
  • the known stabilizer or recycler have a reservoir for a dry binder, such as lime or cement, and a spreader for spreading the binder on the ground and a milling or mixing rotor, with the ground milled and the binder immediately after spreading in the Soil can be mixed in.
  • a pulverulent binder is mixed into the soil.
  • recyclers or stabilizers and construction machines are known with which the binder applied only to the ground, but can not be mixed into the soil. These construction machines are also referred to as binder spreaders.
  • the known binder spreader have a collecting container and a spreader for spreading the binder on the ground.
  • Self-propelled or non-self-propelled binder spreaders are known.
  • the non-self-propelled binder spreaders are attached to a towing vehicle, in particular to a tractor, or by the tractor towed.
  • the self-propelled stabilizers have a frame supported by a wheeled chassis and a drive unit for the wheels.
  • the known construction machines have a dust protection device in the form of an outlet of the spreader enclosing from all sides apron.
  • the US-A-4,990,025 describes a stabilizer for attachment to a tractor.
  • the known stabilizer has a milling and mixing rotor, which is arranged in a rotor housing, which comprises a spraying device for spraying a liquid binder.
  • the problem of dusting can not arise in a stabilizer with a spray because the milled material in the rotor housing is sprayed with a liquid binder.
  • a stabilizer or recycler which has an integrated device for spreading powdered binders is known from US 5,156,237 EP 1 012 396 B1 known.
  • the binder is provided in a funnel-shaped reservoir, at the lower end of a rotary valve is arranged with which the binder can be dispensed dosed.
  • Below the rotary valve flexible sealing walls, for example, rubber flaps are provided which enclose a at the rear in the direction of travel scattering space in which the binder is stored.
  • the binder is run over by the milling or mixing rotor of the stabilizer or recycler and mixed with the milled soil.
  • the invention is based on the object to provide a construction machine for spreading of grit on soils, in particular a construction machine for spreading binders for soil stabilization, in which the formation of dust during application of the powdered binder is largely prevented.
  • the construction machine according to the invention has a grit container for receiving the grit and a spreader with one or more outlet openings for discharging the grit. Below the one or more outlet openings of the scattering device, the dust protection device of the construction machine according to the invention is arranged.
  • the dust protection device is characterized in that below the one or more outlet openings of the spreader a spreader space is created, which is bounded by one or more first dust protection elements, and that a dust enclosure enclosing the spreader room is created, which is bounded by one or more second dust protection elements , wherein at least the dust protection space limiting the second dust protection elements are designed to be flexible so that they can strip over the ground. It is thereby achieved that dust accumulating during spreading of the grit is first retained in the scattering space enclosed by the first dust protection elements, so that the dust can settle on the floor. This already holds back a larger part of the dust. The dust not retained in the spreader room is captured in the dust shelter which is enclosed by the second dust protection elements. This effectively prevents accumulating dust in the environment when spreading the grit.
  • both the first and second dust protection elements are flexible dust protection elements that can strip over the floor. But it is also possible that only the second dust protection elements that limit the dust protection space, reach to the bottom, since ultimately only the Dust protection room needs to be completed to the outside.
  • the dust protection device preferably comprises a plurality of first and second dust protection elements, which limit the scattering space or dust protection space. But it is also possible to provide only a single first and second dust protection element, which surrounds the scattering space or dust protection space in the manner of a circumferential skirt. Preferably, the circumferential skirt is but divided into several sections.
  • a preferred embodiment of the invention provides that the dust protection device has a suction device connected to the dust protection space for extracting dust from the dust protection space.
  • the suction device preferably has a collecting container in which the dust is collected.
  • the collected in the sump dust is preferably returned to the grit container. This is particularly effective prevents dust from entering the dust protection room in the environment.
  • the dust protection device has a spraying device, which is in communication with the dust protection space, for spraying the dust protection space with a liquid, with which the resulting dust can be bound or deposited.
  • the spraying device preferably has a line arranged in the dust protection space with spray nozzles, preferably a ring line in order to spray the liquid as evenly as possible.
  • Additives can be added to the liquid, which promote the binding of the dust; in particular, foaming agents can be added, as a result of which the dust protection space can be at least partially flooded with a foam.
  • the dust protection device it is also possible in principle for the dust protection device to have both a suction device and a spray device. In practice, however, it is sufficient if either a suction device or a spray device is provided.
  • the dust-proofing room is preferably a space enclosing the spreader room except the top and bottom. In practice, however, it may be sufficient if the dust protection room does not completely surround the spreader room. For example, in the region of the longitudinal sides of the spreader room, less dust may possibly occur, so that the dust protection room can be open there.
  • the dust protection elements enclosing the scattering space and the dust protection space are preferably elements designed in the manner of an apron, wherein at least the dust protection elements enclosing the dust protection space at least partially consist of a flexible material, so that the dust protection elements can rest on the ground and strip over the ground. As a result, uneven floors can be compensated.
  • the dust protection elements preferably consist entirely of flexible material. But it is also possible that they include a rigid dust cover on which strips of flexible material are attached.
  • the construction machine is preferably a non-self-propelled construction machine, in particular a non-self-propelled construction machine for spreading binders for soil stabilization, which is attached to a towing vehicle, in particular to a tractor or towed by a towing vehicle or is built on a towing vehicle.
  • the construction machine is a self-propelled construction machine, which has its own drive unit.
  • the construction machine may be a stabilizer or recycler with an integrated binder spreader.
  • FIGS. 1 and 2 show in a highly simplified schematic representation of the essential components of a non-self-propelled construction machine for spreading binders for soil stabilization, which is referred to below as a binder spreader.
  • the binder spreader is attached to an unillustrated towing vehicle, such as a tractor, which tows the binder spreader. On the tractor, the binder spreader can be adjusted in height to the ground.
  • the binder spreader has a substantially rectangular chassis 1 with a forward front wall 1A in the direction of travel, a rear rear wall 1B in the direction of travel and two side walls 1C and 1D.
  • the height-adjustable mounting of the binder spreader on the tractor is done with a hint of attachment 2 shown on the front of the chassis.
  • the binder spreader For receiving the binder, the binder spreader has a closed grit container 3, which has a filling opening 4 at the top. Below the grit container 3 is a scattering device 5, which consists of several self-cleaning metering locks in Zellenradbauweise. The construction of such a scattering unit is known to the person skilled in the art.
  • the spreader 5 has at the bottom of one or more outlet openings 6, where the binder exits and falls to the ground. In order to prevent the resulting dust development, the binder spreader has a dust protection device 7.
  • the dust protection device 7 has in each case on the front and rear walls 1A, 1B and the side walls 1C, 1 D fixed dust protection elements 7A, 7B, 7C, 7D.
  • the dust protection elements 7A, 7B, 7C, 7D are each formed in the manner of a skirt elements made of a flexible material.
  • a flexible dust protection elements for example, rectangular plastic foil pieces, such as rubber cloths or the like, can be used, which are tailored in the dimensions of the chassis. At the lower edges, the pieces of film may be provided with spaced incisions to increase flexibility.
  • the flexible dust control elements are preferably of sufficient length to strike the ground as the binder spreader is moved across the ground by the tractor.
  • the dust protection device 7 also has further flexible dust protection elements 8A, 8B, 8C, 8D, which are arranged at a distance from the first dust protection elements.
  • the second dust protection elements 8A, 8B, 8C, 8D which are like the first dust protection elements 7A, 7B, 7C, 7D each formed in the manner of a skirt, enclose the first dust protection elements on the front and back and the long sides.
  • the second dust guard elements are of sufficient length to strike the ground as the binder spreader is moved across the ground.
  • the space between the front and in the direction of travel of the construction machine Rear and the longitudinal side lateral dust protection elements is referred to as dust protection space 9.
  • a suction device 10 For sucking off the dust from the dust protection space 9, a suction device 10 is provided.
  • the suction device 10 has an annular suction line 11 with a plurality of spaced suction nozzles 12, which extends between the first and second dust protection elements in the upper half of the dust protection space 9.
  • the ring line 11 is connected via a suction line, not shown, with a device 13 for sucking air from the dust protection space 9.
  • the suction device 10 has a collecting container 14, in which the dust extracted from the dust protection space is collected, wherein the exhaust air is blown off via a filter, not shown.
  • An only schematically illustrated device 14A transfers the dust collected in the collecting container 14 into the grit container 3 via a channel 14B, which is shown only as an indication. The collected dust can be blown into the grit container, for example, in the standstill times of the suction device.
  • FIGS. 3 and 4 show an alternative embodiment of the binder spreader, which differs from that with reference to FIGS Figures 1 and 2 described embodiment differs only in that instead of a suction device for the dust, a spraying device is provided.
  • the corresponding parts are therefore provided with the same reference numerals.
  • the spraying device 15 comprises a ring pipe 16, which in turn is arranged in the upper half of the dust-proofing space 9, on which a multiplicity of spraying nozzles 17 arranged at a distance from one another are provided. From the ring line 16 leads a spray medium, not shown, to a Sprühstoff essenceer 18, from which via a pump, not shown, spray is conveyed into the loop 16. The spray binds the in the dust protection space.
  • the spray is preferably admixed with an additive which promotes the binding of the dust.
  • the spray is mixed with a foaming agent, which can be provided in a separate additive container and conveyed into the Sprühffen theoretically. This ensures that forms a foam in the dust shelter, which binds the dust. With the rear dust protection elements in the direction of travel, which limit the dust protection space, the foam can then be pulled smoothly. The foam carpet remaining on the floor binds the dust on the floor until the floor is milled and the binder is mixed into the floor. In order for a dust development can be effectively prevented even if especially in stronger winds, the construction machine for milling the soil relatively late follow the binder spreader.
  • the two embodiments show a cultivation binder spreader, which is attached to a tractor.
  • the dust protection device according to the invention can also be provided in a binder spreader, which is pulled by a truck.
  • the binder spreader may be a self-propelled binder spreader. In particular, it may be a stabilizer or recycler with an integrated binder spreader.
  • Fig. 5 shows in a highly simplified representation of a stabilizer or recycler with an integrated device for spreading binders. Since the recycler or stabilizer, with the exception of the binder spreading apparatus according to the invention, belongs to the state of the art, only the essential components of the construction machine are described.
  • the recycler or stabilizer as such, for example, in the EP 1 012 396 B1 has a height-adjustable machine frame 19 with two front wheels 20 and two rear wheels 21. On the machine frame 19, a control station 22 is arranged with a driver's cab 23. Between the front and rear wheels 19, 20 is located on the machine frame 19, a rotor housing 24 in which a milling or mixing rotor 25 is arranged.
  • the stabilizer or recycler has the device for spreading binder.
  • Fig. 5 become the individual components of the device for spreading of binder with the same reference numerals as the corresponding components of the binder spreader, with reference to the Fig. 1 to 4 is described.
  • the integrated binder spreader has a funnel-shaped grit container 3, in which the binder is provided. Below the grit container, the spreader 5 is arranged for discharging the binder. Below the spreader is the dust guard 7, which as in the binder spreader from the FIGS. 1 to 4 again has first and second dust protection elements 7A, 8A, which define a spreader room 8 and a dust protection space 9.
  • the applied with the device binder is run over immediately after the application of the milling or mixing rotor 25 of the stabilizer or recycler and mixed with the milled soil.
  • the dust protection device 7 all components of the dust protection of the FIGS. 1 to 4 have, even if the individual parts are not shown in FIG. 6.
  • a suction device or a spray device is provided, with reference to the FIGS. 1 to 4 is described in detail.

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Fertilizing (AREA)
  • Soil Working Implements (AREA)
  • Road Paving Machines (AREA)

Claims (14)

  1. Engin destiné à l'épandage de matériau d' épandage sur des sols, en particulier engin destiné à l'épandage de liants pour la stabilisation des sols, comprenant
    un réservoir de matériau d' épandage (3) servant à loger le matériau d' épandage,
    un dispositif d' épandage (5) comprenant un ou plusieurs orifices de sortie (6) servant à distribuer le matériau d' épandage,
    un dispositif de protection contre la poussière (7) disposé sous l'unique ou sous les plusieurs orifices de sortie du dispositif d' épandage (5),
    caractérisé en ce que
    le dispositif de protection contre la poussière (7) présente un ou plusieurs premiers éléments de protection contre la poussière (7A, 7B, 7C, 7D), lesquels renferment un espace d' épandage (8) disposé sous l'unique ou sous les plusieurs orifices de sortie du dispositif d' épandage (5), ainsi qu' un ou plusieurs deuxièmes éléments de protection contre la poussière (8A, 8B, 8C, 8D), lesquels renferment les premiers éléments de protection contre la poussière en formant un espace de protection contre la poussière (9), sachant qu' au moins les deuxièmes éléments de protection contre la poussière (8A, 8B, 8C, 8D) sont réalisés de manière souple de telle manière qu' ils peuvent effleurer le sol.
  2. Engin selon la revendication 1, caractérisé en ce que le dispositif de protection contre la poussière (7) présente un système d' aspiration (10) servant à faire sortir par aspiration la poussière de l'espace de protection contre la poussière (9).
  3. Engin selon la revendication 2, caractérisé en ce que le dispositif d' aspiration (10) présente un réservoir collecteur (14) pour poussière.
  4. Engin selon la revendication 3, caractérisé en ce que le dispositif d' aspiration (10) présente un dispositif (14A) servant à transférer la poussière accumulée dans le réservoir collecteur (14) dans le réservoir pour matériau d' épandage (3).
  5. Engin selon l'une quelconque des revendications 1 à 4, caractérisé en ce que le dispositif de protection contre la poussière (7) présente un dispositif de pulvérisation (15) servant à pulvériser un liquide dans l' espace de protection contre la poussière (9).
  6. Engin selon la revendication 5, caractérisé en ce que le dispositif de pulvérisation (15) présente une conduite (16) disposée dans l' espace de protection contre la poussière (9) et dotée de gicleurs (17).
  7. Engin selon la revendication 5 ou 6, caractérisé en ce qu' un additif servant à lier ou à supprimer la poussière est ajouté au liquide destiné à être pulvérisé dans l' espace de protection contre la poussière (9).
  8. Engin selon la revendication 7, caractérisé en ce que l' additif servant à lier ou à supprimer la poussière est un additif servant à former de la mousse.
  9. Engin selon l'une quelconque des revendications 1 à 8, caractérisé en ce que l' espace de protection contre la poussière (9) est un espace renfermant l' espace d' épandage (8).
  10. Engin selon l'une quelconque des revendications 1 à 9, caractérisé en ce que les premiers et/ou les deuxièmes éléments de protection contre la poussière (7A, 7B, 7C, 7D ; 8A, 8B, 8C, 8D) sont des éléments réalisés sous la forme d' un tablier, constitués au moins en partie d' un matériau souple.
  11. Engin selon l'une quelconque des revendications 1 à 10, caractérisé en ce que l' espace d' épandage (8) est délimité par des éléments de protection avant contre la poussière (7A) dans le sens de déplacement et des éléments de protection arrière contre la poussière (7B) dans le sens de déplacement ainsi que par des éléments de protection latéraux contre la poussière (7C, 7D) s' étendant dans la direction longitudinale de l' engin.
  12. Engin selon l'une quelconque des revendications 1 à 11, caractérisé en ce que l'espace de protection contre la poussière (9) est délimité par des éléments de protection avant contre la poussière (8A) dans le sens de déplacement et des éléments de protection arrière contre la poussière (8B) dans le sens de déplacement ainsi que par des éléments de protection latéraux contre la poussière (8C, 8D) s' étendant dans la direction longitudinale de l' engin.
  13. Engin selon l'une quelconque des revendications 1 à 12, caractérisé en ce que l'engin est un engin non autotracté, en particulier un engin non autotracté servant à épandre des liants pour la stabilisation des sols, lequel engin est installé au niveau d' un véhicule de traction, en particulier sur un tracteur, ou peut être remorqué par un véhicule de traction.
  14. Engin selon l'une quelconque des revendications 1 à 12, caractérisé en ce que l'engin est un recycleur ou un stabilisateur, qui présente un rotor de fraisage ou de mélange (25) servant à retourner le sol et à mélanger le matériau d' épandage, en particulier le liant.
EP10000331.8A 2009-02-07 2010-01-15 Engin destiné à la dispersion de matériau d'épandage sur des sols Active EP2216444B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102009007996A DE102009007996B4 (de) 2009-02-07 2009-02-07 Baumaschine zum Streuen von Streugut auf Böden

Publications (3)

Publication Number Publication Date
EP2216444A2 EP2216444A2 (fr) 2010-08-11
EP2216444A3 EP2216444A3 (fr) 2012-03-07
EP2216444B1 true EP2216444B1 (fr) 2013-08-21

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EP10000331.8A Active EP2216444B1 (fr) 2009-02-07 2010-01-15 Engin destiné à la dispersion de matériau d'épandage sur des sols

Country Status (4)

Country Link
US (1) US8342772B2 (fr)
EP (1) EP2216444B1 (fr)
CN (2) CN201778269U (fr)
DE (1) DE102009007996B4 (fr)

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CN102261028B (zh) * 2010-10-30 2012-08-22 鞍钢集团矿业公司 胶结充填材料在露天矿汽运防尘路面中的使用方法
BR112013026464A2 (pt) 2011-04-15 2016-12-20 Lta Corp sistema de transporte incluindo um veículo flutuante
FR2994446B1 (fr) * 2012-08-13 2015-05-22 Remi Durand Dispositif de depose de pulverulents au sol, avec dosage et controle des emissions de poussiere et possibilite d'incorporation au sol, notamment de liants routiers
CN105332332B (zh) * 2015-10-27 2017-07-14 广州大学 一种适用于半柔性路面修建的灌浆设备
MD4494C1 (ro) * 2016-03-04 2018-01-31 Geoteh Nova О.О.О. Echipament şi procedeu de stabilizare a solului
US10718099B2 (en) * 2017-12-29 2020-07-21 Farzad Moradi Leveling, tune-up and compacting device
CN108532420B (zh) * 2018-04-27 2020-07-31 广东汇晟建设有限公司 用于土木工程的土地表面材料摊铺机械
CN112627152B (zh) * 2020-12-08 2022-02-08 中冶集团武汉勘察研究院有限公司 用于岩土工程中的层土铺压装置
CN113846534B (zh) * 2021-10-29 2022-08-26 泗洪县城市建设投资经营集团有限公司 一种拼挂式同步碎石封层车

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Also Published As

Publication number Publication date
EP2216444A2 (fr) 2010-08-11
DE102009007996A1 (de) 2010-08-19
CN101798792B (zh) 2012-01-11
EP2216444A3 (fr) 2012-03-07
CN101798792A (zh) 2010-08-11
CN201778269U (zh) 2011-03-30
DE102009007996B4 (de) 2011-06-01
US20100202832A1 (en) 2010-08-12
US8342772B2 (en) 2013-01-01

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