EP1427874B1 - Device for continuously washing dirty and greasy wool - Google Patents
Device for continuously washing dirty and greasy wool Download PDFInfo
- Publication number
- EP1427874B1 EP1427874B1 EP02798713A EP02798713A EP1427874B1 EP 1427874 B1 EP1427874 B1 EP 1427874B1 EP 02798713 A EP02798713 A EP 02798713A EP 02798713 A EP02798713 A EP 02798713A EP 1427874 B1 EP1427874 B1 EP 1427874B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- liquid
- bath
- wool
- dirty
- sieve drum
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 210000002268 wool Anatomy 0.000 title claims abstract description 29
- 238000005406 washing Methods 0.000 title claims abstract description 16
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 22
- 239000010802 sludge Substances 0.000 claims abstract description 11
- 230000002093 peripheral effect Effects 0.000 claims abstract description 5
- 239000007788 liquid Substances 0.000 claims description 24
- 238000004140 cleaning Methods 0.000 claims description 3
- 238000007598 dipping method Methods 0.000 claims 1
- 239000012530 fluid Substances 0.000 claims 1
- 239000000835 fiber Substances 0.000 abstract description 14
- 238000000034 method Methods 0.000 abstract description 3
- 238000012216 screening Methods 0.000 description 4
- 238000004064 recycling Methods 0.000 description 2
- 239000002351 wastewater Substances 0.000 description 2
- 239000012141 concentrate Substances 0.000 description 1
- 239000000356 contaminant Substances 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 239000004519 grease Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000001376 precipitating effect Effects 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000004753 textile Substances 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
Images
Classifications
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01B—MECHANICAL TREATMENT OF NATURAL FIBROUS OR FILAMENTARY MATERIAL TO OBTAIN FIBRES OF FILAMENTS, e.g. FOR SPINNING
- D01B3/00—Mechanical removal of impurities from animal fibres
- D01B3/04—Machines or apparatus for washing or scouring loose wool fibres
- D01B3/08—Machines or apparatus for washing or scouring loose wool fibres with longitudinal movement of either wool or liquid
Definitions
- a device of the generic type is known from EP-B-0 603 662.
- the machinery as a whole consists of a number of individual washing machines as z.
- Each of these identically formed wash baths consists of a bath housing having as a false floor a perforated sheet separating a treatment space from a protective material discharge space. This perforation reduces the dirt that is released during washing, such as sand, excrement and grease.
- the sludge concentrates in the conically descending discharge space and is drained at intervals by opening a valve in the sewer.
- the treatment room is filled to a level with washing liquid.
- the invention has for its object to change the generic device so that continuously a separation of the fibers to be recycled is made possible by the discharged wastewater.
- the solution found is that, as known, at least the liquid squeezed out of the leading wool web by the press roll pair is returned to the out-of-level peripheral surface of a screen drum with the washed out wool fibers, but an additional liquid collecting tray is arranged below this peripheral surface within the sieve drum, whereby the dirty water collected from the squeezing liquor in this sump can be removed from the bath separately from the circulated washing water and without wool fibers.
- the thus collected, freed from wool fibers wastewater can be supplied to the existing below the bath housing Abschlammtrichter expediently in the lower region where the sedimented settling space, or it can immediately separated from the bath and possibly guided into the sewer or other cleaning device become.
- the raw wool washing device consists of a plurality of the liquid up to a level 2 receiving bath housings 1, in which in any case a screening drum 3 is rotatably mounted.
- a screening drum 3 is rotatably mounted.
- two sieve drums 3 are shown in a bath housing, which are separated by a swim 4.
- the treatment chamber 5 in this bath housing 1 is separated from the Schmutzstoffab technologicalraum like Abschlammtrichter 6 through a perforated bottom 7.
- This bottom 7 is adapted according to the Fig. 3 the curvature of the screening drums 3.
- the perforated bottom 7 is curved convexly outward.
- the Schmutzstoffab 2010raum is formed by a funnel 6, so that the precipitating from the wool fleece contaminants also on the funnel walls continuously the discharge opening 8, which is provided with a valve 9, suck.
- the valve 9 For discharging the sludge, the valve 9 at certain intervals, which can also be determined by a meter, opened, whereby the sludge is discharged into the sewer.
- the effluent into the channel 11 liquid passes through a pipe, not shown, into the channel 12, from where the entire washing liquid is pumped by means of the pump 13 in the at the beginning of the bath housing 1 across the working width extending channel 14, from which they again flows back into the treatment room 5. From there, the washing liquid flows, on the one hand, through the wool adhering to the screening drums 3, then along the floating section 4 to the next screening drum and then to the press 15 arranged at the outlet of the bath.
- the wool web is essentially separated from the now dirty wash water.
- the press water is collected below the press 15 by a pan 16.
- Wool fibers, which have to be brought back into the treatment process, are also rinsed out with the running press water.
- an outflow sieve 17 is arranged according to the invention above a sieve drum 3, that extends over part of the length of the drum 3.
- a pipe 18 leads from the tub 16 below the press 15 to this Ausströmsieb 17, so that the entire squeezed dirty liquor passes by means of a pump 16 'again to this screen drum. The squeezed dirt is to be separated from the fibers to be recycled.
- a further liquid collecting tray 19 is disposed within the sieve drum and below the Ausströmsiebes 17, which now only the squeezed dirty liquor absorbs, while the wool fibers lie on the rotating screen drum surface and due to the rotation of the sieve drum 3 in the direction of arrows 3 'in the association of Wool track be led back.
- the now liberated from the wool debris from the tub 16 can from the tub 19 of FIG. 1 via a pipe 20 in the Abschlammtrichter 6, expediently in the lower settling chamber 6 ', or as shown in FIG. 2 via another pipe 21, bypassing the Abschlammtrichters 6 are immediately passed into a sewer or other additional cleaning device.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Textile Engineering (AREA)
- Treatment Of Fiber Materials (AREA)
- Separation Of Solids By Using Liquids Or Pneumatic Power (AREA)
- Treatment Of Sludge (AREA)
- Nonwoven Fabrics (AREA)
- Paper (AREA)
- Cleaning In General (AREA)
- Detail Structures Of Washing Machines And Dryers (AREA)
- Detergent Compositions (AREA)
Abstract
Description
Eine Vorrichtung der gattungsgemäßen Art ist aus der EP-B-0 603 662 bekannt. Die Maschinenanlage insgesamt besteht aus einer Reihe von einzelnen Waschmaschinen wie sie z. B. in den Melliand Textilberichten 1993, Seite 1152 f beschrieben ist. Ein jedes dieser gleich ausgebildeten Waschbäder besteht aus einem Badgehäuse, das als Zwischenboden ein perforiertes Blech aufweist, das einen Behandlungsraum von einem Schutzstoffabführraum trennt. Durch diese Perforation sinkt der beim Waschen gelöste Schmutz, wie Sand, Exkremente und Fett ab, der Schlamm konzentriert sich im konisch nach unten zulaufenden Abführraum und wird in Abständen durch Öffnen eines Ventils in den Abwasserkanal abgelassen. Der Behandlungsraum ist bis zu einem Niveau mit Waschflüssigkeit gefüllt. In dieses tauchen hier drei drehbar gelagerte Siebtrommeln ein, die je von einer kurzen Schwimmstrecke voneinander getrennt sind. Die angetrieben umlaufenden Siebtrommeln und die an ihnen unten haftende Wolle sind von der Flüssigkeit von außen nach innen durchströmt, in der Schwimmstrecke hat der gelöste Schmutz Zeit nach unten abzusinken und dann in den Abschlammtrichter zu gelangen. Die Durchströmung an der Siebtrommel wird durch einen im Bad erzeugten Flüssigkeitskreislauf bewirkt, wobei die in die Siebtrommel gedrungene Flüssigkeit an deren Stirnseiten infolge des dort durch eine Pumpe erzeugten niedrigeren Niveaus ausströmt und am Anfang des Bades wieder durch einen quer zum Waschbad sich erstreckenden Kanal in den Behandlungsraum zugeführt wird. Am Ende eines jeden Bades ist ein Presswalzenpaar angeordnet, durch das die Wollebahn von dem Schmutzwasser dieses vorgeordneten Bades insgesamt befreit wird. Das Presswasser wird unterhalb der Presse aufgefangen und durch eine Pumpe am Anfang eines Bades wieder dem Behandlungsprozess zugeführt.A device of the generic type is known from EP-B-0 603 662. The machinery as a whole consists of a number of individual washing machines as z. As described in the Melliand Textile Reports 1993, page 1152 f. Each of these identically formed wash baths consists of a bath housing having as a false floor a perforated sheet separating a treatment space from a protective material discharge space. This perforation reduces the dirt that is released during washing, such as sand, excrement and grease. The sludge concentrates in the conically descending discharge space and is drained at intervals by opening a valve in the sewer. The treatment room is filled to a level with washing liquid. In this dive three rotatably mounted sieve drums, which are each separated by a short swim distance. The driven circulating sieve drums and the wool adhering to them at the bottom are flowed through by the liquid from outside to inside, in the buoyant path the loosened dirt has time to sink downwards and then to reach the sludge funnel. The flow through the screen drum is effected by a liquid circuit generated in the bath, wherein the squirted into the sieve drum liquid flows out of their front sides due to the lower level generated there by a pump and again at the beginning of the bath through a transversely extending to the washing channel in the Treatment room is supplied. At the end of each bath, a press roll pair is arranged, through which the wool web is freed from the dirty water of this upstream bath altogether. The press water is collected below the press and returned to the treatment process by a pump at the beginning of a bath.
Beim Abpressen des Schmutzwassers gelangt in den Auffangbehälter nicht nur das schmutzige Wasser, sondern es werden mit dem Presswasser auch eine Anzahl von Wollefasern aus der Bahn ausgeschwemmt, die es wiederzugewinnen gilt. Aus der DE-A-2 142 454 ist es bekannt, das ausgepresste Wasser zusammen mit den Wollefasern über eine Rohrleitung nach oben über eine der Siebtrommel zu führen, dort auf die Oberfläche der Siebtrommel auszuströmen, die dann mit ihrer Drehbewegung die Fasern wieder zurück in die Wollebahn führt. In der EP-B-0 603 662 wird dazu dagegen vorgeschlagen, neben dem umgewälzten Wasser auch das Presswasser mit den zu recycelnden Fasern am Anfang des Bades dem Waschprozess wieder zuzuführen. Diese Maßnahmen haben jeweils zur Folge, dass das schmutzige Presswasser das Bad erneut belastet.When pressing off the dirty water not only gets the dirty water in the collecting container, but it is washed out with the press water and a number of wool fibers from the web, which is to recover it. From DE-A-2 142 454 it is known to lead the squeezed water together with the wool fibers via a pipe up over one of the screen drum, there to flow out onto the surface of the screen drum, which then leads the fibers back into the wool track with their rotary motion. On the other hand, it is proposed in EP-B-0 603 662, in addition to the circulated water, to supply the press water with the fibers to be recycled at the beginning of the bath to the washing process again. These measures have the consequence that the dirty press water charged the bathroom again.
Der Erfindung liegt die Aufgabe zugrunde, die gattungsgemäße Vorrichtung so zu ändern, dass fortlaufend eine Trennung der zu recycelnden Fasern von dem abzuführenden Schmutzwasser möglich gemacht ist.The invention has for its object to change the generic device so that continuously a separation of the fibers to be recycled is made possible by the discharged wastewater.
Ausgehend von der Vorrichtung nach der EP-B-0 603 662 liegt die gefundene Lösung darin, dass wie bekannt jedenfalls die durch das Presswalzenpaar aus der vorlaufenden Wollebahn abgequetschte Flüssigkeit mit den ausgeschwemmten Wollefasern auf die außerhalb des Niveaus umlaufende Umfangsfläche einer Siebtrommel zurückgeführt ist, aber unterhalb dieser Umfangsfläche innerhalb der Siebtrommel eine zusätzliche Flüssigkeitsauffangwanne angeordnet ist, womit das aus der Quetschflotte in dieser Wanne aufgefangene Schmutzwasser getrennt vom umgewälzten Waschwasser und ohne Wollefasern aus dem Bad abgeführt werden kann.Starting from the device according to EP-B-0 603 662, the solution found is that, as known, at least the liquid squeezed out of the leading wool web by the press roll pair is returned to the out-of-level peripheral surface of a screen drum with the washed out wool fibers, but an additional liquid collecting tray is arranged below this peripheral surface within the sieve drum, whereby the dirty water collected from the squeezing liquor in this sump can be removed from the bath separately from the circulated washing water and without wool fibers.
Das so aufgefangene, von Wollefasern befreite Schmutzwasser kann dem unterhalb des Badgehäuses vorhandenen Abschlammtrichter, zweckmäßigerweise im unteren Bereich, wo sich der beruhigte Absetzraum bildet, zugeführt werden, oder es kann gleich von dem Bad getrennt und ggf. in den Abwasserkanal oder eine andere Reinigungseinrichtung geführt werden.The thus collected, freed from wool fibers wastewater can be supplied to the existing below the bath housing Abschlammtrichter expediently in the lower region where the sedimented settling space, or it can immediately separated from the bath and possibly guided into the sewer or other cleaning device become.
Eine Vorrichtung der erfindungsgemäßen Art ist in der Zeichnung beispielhaft dargestellt. Es zeigen:
- Fig. 1
- in schematischer Darstellung ein Rohwolle-Siebtrommelwaschbad in der Seitenansicht mit abschließender Presse,
- Fig. 2
- das Bad nach Fig. 1 mit einer anderen Flüssigkeitsrückführung nach dem Wollerecyceln,
- Fig. 3
- ebenfalls in der Seitenansicht ein Rohwolle-Waschbad wie es am Anfang einer Maschinenanlage zum Einsatz kommt und
- Fig. 4
- das Bad nach der Fig. 3 in einem Schnitt quer zur Arbeitsrichtung.
- Fig. 1
- a schematic representation of a raw wool screen drum washing bath in the side view with final press,
- Fig. 2
- the bath according to Fig. 1 with a different liquid recycling after wool recycling,
- Fig. 3
- Also in the side view of a raw wool bath as it is used at the beginning of a machine plant and
- Fig. 4
- the bath of FIG. 3 in a section transverse to the direction of work.
Die Rohwolle-Waschvorrichtung besteht aus mehreren die Flüssigkeit bis zu einem Niveau 2 aufnehmenden Badgehäusen 1, in denen jedenfalls eine Siebtrommel 3 drehbar gelagert ist. Im Beispiel nach Fig. 1, 2 sind in einem Badgehäuse zwei Siebtrommeln 3 dargestellt, die von einer Schwimmstrecke 4 getrennt sind. Der Behandlungsraum 5 in diesem Badgehäuse 1 ist von dem Schmutzstoffabführraum wie Abschlammtrichter 6 durch einen perforierten Boden 7 getrennt. Dieser Boden 7 ist gemäß der Fig. 3 der Krümmung der Siebtrommeln 3 angepasst. Im Bereich der Schwimmstrecke 4 ist der perforierte Boden 7 konvex nach außen gekrümmt. Der Schmutzstoffabführraum ist durch einen Trichter 6 gebildet, damit die aus dem Wollevlies ausfallenden Schmutzstoffe auch an den Trichterwänden kontinuierlich der Abführöffnung 8, die mit einem Ventil 9 versehen ist, zurutschen. Zur Abführung des Schlamms wird das Ventil 9 in bestimmten Zeitabständen, die auch durch ein Messgerät bestimmt werden können, geöffnet, womit der Schlamm in den Abwasserkanal abgeleitet wird.The raw wool washing device consists of a plurality of the liquid up to a
Die durch die Perforation der jeweiligen Siebtrommel 3 in das Innere derselben gedrungene Flüssigkeit fließt gemäß Fig. 4 an den Stirnseiten der Siebtrommeln 3 durch Öffnungen 10 selbsttätig in stirnseitig außen angeflanschte Längskanäle 11, 12 aus. Die in den Kanal 11 ausgeflossene Flüssigkeit gelangt über eine nicht dargestellte Rohrleitung in den Kanal 12, von wo die gesamte Waschflüssigkeit mit Hilfe der Pumpe 13 in den am Anfang des Badgehäuses 1 quer über die Arbeitsbreite sich erstreckenden Kanal 14 gepumpt wird, aus dem sie wieder zurück in den Behandlungsraum 5 fließt. Von dort fließt die Waschflüssigkeit einerseits durch die an den Siebtrommeln 3 haftende Wolle, dann entlang der Schwimmstrecke 4 zur nächsten Siebtrommel und dann zur am Auslauf des Bades angeordneten Presse 15.The squat through the perforation of the
An der Presse 15 wird die Wollebahn im wesentlichen von dem jetzt schmutzigen Waschwasser getrennt. Das Presswasser wird unterhalb der Presse 15 durch eine Wanne 16 aufgefangen. Mit dem ablaufenden Presswasser werden auch Wollefasern ausgespült, die wieder zurück in den Behandlungsprozess gebracht werden müssen. Dazu ist nach der Erfindung oberhalb einer Siebtrommel 3 ein Ausströmsieb 17 angeordnet, dass sich über einen Teil der Länge der Trommel 3 erstreckt. Eine Rohrleitung 18 führt von der Wanne 16 unterhalb der Presse 15 zu diesem Ausströmsieb 17, so dass die gesamte ausgepresste Schmutzflotte mittels einer Pumpe 16' wieder zu dieser Siebtrommel gelangt. Die ausgepresste Schmutzflotte ist aber von den zu recycelnden Fasern zu trennen. Dazu ist innerhalb der Siebtrommel und unterhalb des Ausströmsiebes 17 eine weitere Flüssigkeitsauffangwanne 19 angeordnet, die jetzt nur die ausgepresste Schmutzflotte auffängt, während die Wollefasern auf der umlaufenden Siebtrommeloberfläche liegen bleiben und infolge der Drehung der Siebtrommel 3 in Richtung des Pfeile 3' in den Verband der Wollebahn zurück geführt werden.At the
Die jetzt von der Wolle befreite Schmutzflotte aus der Wanne 16 kann von der Wanne 19 gemäß Fig. 1 über eine Rohrleitung 20 in den Abschlammtrichter 6, zweckmäßigerweise in den unteren Absetzraum 6', oder gemäß Fig. 2 über eine andere Rohrleitung 21 unter Umgehung des Abschlammtrichters 6 gleich in einen Abwasserkanal oder in eine andere zusätzliche Reinigungseinrichtung geführt werden.The now liberated from the wool debris from the
Claims (4)
- A device for continuously washing dirty greasy wool comprising a bath housing (1) which holds a treatment fluid and is divided longitudinally by a preferably perforated base (7) to separate a treatment chamber (5) from a sludge removal chamber such as a sludge hopper (6), being provided with a pair of pressing rollers (15) arranged at the outlet whose squeezed-out liquid together with some fibres is collected separately from the circulating washing water and is returned into the bath housing (1), wherein a sieve drum (3) is rotatably mounted in the treatment chamber (5), this drum being penetrated in each case from outside to inside by liquid as a result of a liquid stream produced by a pump (13) and dipping in parts into the liquid filling the bath housing (1) up to a certain level (2), this drum being allocated a float section (4), and wherein a quantity of the liquid removed from the interior of the sieve drum (3) is supplied from outside via a channel (14) back to the sieve drum (3), characterised in that in each case, the liquid squeezed from the advancing wool web by the pair of pressing rollers (15) together with the floated-out wool fibres is fed back to the peripheral surface of the sieve drum (3) which revolves outside the level and an additional liquid collecting tub (19) is located underneath this peripheral surface inside the sieve drum (3), wherein the dirty water collected from the press liquor is guided from the bath (1) separately from the circulating washing water.
- The device according to claim 1, characterised in that the liquid collecting tub (19) is connected inside the sieve drum (3) to a liquid drain pipe (20) which opens into the sludge hopper (6).
- The device according to claim 1 or claim 2,
characterised in that the liquid drain pipe (20) opens in the lower area, i.e. still settling space (6'), of the sludge hopper (6). - The device according to any one of the preceding claims, characterised in that a liquid drain pipe (21) opens into a cleaning device, bypassing the sludge hopper (6).
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE10145793A DE10145793A1 (en) | 2001-09-17 | 2001-09-17 | Device for the continuous washing of dirty, fatty wool |
| DE10145793 | 2001-09-17 | ||
| PCT/EP2002/010156 WO2003025264A1 (en) | 2001-09-17 | 2002-09-11 | Device for continuously washing dirty and greasy wool |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP1427874A1 EP1427874A1 (en) | 2004-06-16 |
| EP1427874B1 true EP1427874B1 (en) | 2006-11-08 |
Family
ID=7699322
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP02798713A Expired - Lifetime EP1427874B1 (en) | 2001-09-17 | 2002-09-11 | Device for continuously washing dirty and greasy wool |
Country Status (8)
| Country | Link |
|---|---|
| EP (1) | EP1427874B1 (en) |
| AT (1) | ATE344843T1 (en) |
| AU (1) | AU2002333827B2 (en) |
| DE (2) | DE10145793A1 (en) |
| EA (1) | EA006840B1 (en) |
| NZ (1) | NZ531742A (en) |
| PL (1) | PL368856A1 (en) |
| WO (1) | WO2003025264A1 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101831773A (en) * | 2010-05-04 | 2010-09-15 | 浙江神州毛纺织有限公司 | Water-saving rope-form washing dolly |
| CN103132151B (en) * | 2013-03-20 | 2015-04-08 | 张家港宇新羊毛工业有限公司 | Water return pipeline wool recovery device |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2142454A1 (en) * | 1971-08-25 | 1973-03-01 | Vepa Ag | DEVICE FOR WET TREATMENT OF TEXTILE MATERIAL, IN PARTICULAR LOOSE FIBER MATERIAL |
| DE4243166A1 (en) * | 1992-12-19 | 1994-06-23 | Fleissner Maschf Gmbh Co | Device for the continuous washing of dirty, fatty wool |
-
2001
- 2001-09-17 DE DE10145793A patent/DE10145793A1/en not_active Withdrawn
-
2002
- 2002-09-11 NZ NZ531742A patent/NZ531742A/en unknown
- 2002-09-11 AU AU2002333827A patent/AU2002333827B2/en not_active Ceased
- 2002-09-11 WO PCT/EP2002/010156 patent/WO2003025264A1/en active IP Right Grant
- 2002-09-11 EP EP02798713A patent/EP1427874B1/en not_active Expired - Lifetime
- 2002-09-11 EA EA200400445A patent/EA006840B1/en not_active IP Right Cessation
- 2002-09-11 PL PL02368856A patent/PL368856A1/en unknown
- 2002-09-11 DE DE50208659T patent/DE50208659D1/en not_active Withdrawn - After Issue
- 2002-09-11 AT AT02798713T patent/ATE344843T1/en not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| WO2003025264A1 (en) | 2003-03-27 |
| PL368856A1 (en) | 2005-04-04 |
| DE10145793A1 (en) | 2003-04-03 |
| AU2002333827B2 (en) | 2006-04-27 |
| DE50208659D1 (en) | 2006-12-21 |
| NZ531742A (en) | 2005-08-26 |
| ATE344843T1 (en) | 2006-11-15 |
| EP1427874A1 (en) | 2004-06-16 |
| EA200400445A1 (en) | 2004-08-26 |
| EA006840B1 (en) | 2006-04-28 |
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