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EP1049624B2 - Soupape de soutirage pour liquides contenant des fibres - Google Patents
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EP1049624B2 - Soupape de soutirage pour liquides contenant des fibres - Google Patents

Soupape de soutirage pour liquides contenant des fibres Download PDF

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Publication number
EP1049624B2
EP1049624B2 EP98959795A EP98959795A EP1049624B2 EP 1049624 B2 EP1049624 B2 EP 1049624B2 EP 98959795 A EP98959795 A EP 98959795A EP 98959795 A EP98959795 A EP 98959795A EP 1049624 B2 EP1049624 B2 EP 1049624B2
Authority
EP
European Patent Office
Prior art keywords
valve
mouthpiece
cylinder
central portion
valve seat
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
Application number
EP98959795A
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German (de)
English (en)
Other versions
EP1049624B1 (fr
EP1049624A1 (fr
Inventor
Werner Ludwig
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.)
Tetra Laval Holdings and Finance SA
Original Assignee
Tetra Laval Holdings and Finance SA
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
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Application filed by Tetra Laval Holdings and Finance SA filed Critical Tetra Laval Holdings and Finance SA
Publication of EP1049624A1 publication Critical patent/EP1049624A1/fr
Application granted granted Critical
Publication of EP1049624B1 publication Critical patent/EP1049624B1/fr
Publication of EP1049624B2 publication Critical patent/EP1049624B2/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • B65B39/00—Nozzles, funnels or guides for introducing articles or materials into containers or wrappers
    • B65B39/001—Nozzles, funnels or guides for introducing articles or materials into containers or wrappers with flow cut-off means, e.g. valves
    • B65B39/004—Nozzles, funnels or guides for introducing articles or materials into containers or wrappers with flow cut-off means, e.g. valves moving linearly

Definitions

  • the invention relates to a valve for metered Filling liquids in packaging, with one Housing with feed port, front mouthpiece and exit means, with one movable in the housing driven, with a valve seat in engagement bring and front a poppet and behind it a thickened middle part having closing body and with back sealing means, (see, e.g. WO-A-95/26906).
  • Valves used for this purpose or metering valves have a housing in which a closure body, from the rear over the feed pipe continuously flowed with the liquid to be filled is, moved backwards intermittently backwards is used to open the valve and pushed forward again is to close the valve.
  • a known valve according to the introductory ones Characteristics reaches the outflow of the liquid filling material with low exit velocity at sufficient large quantities, so that for example in the Filling milk an undesirably strong foaming is avoided in the packaging.
  • the known Filling valve also fulfills another condition that namely after closing the valve an undesirable Dripping of the liquid is prevented. This was formerly at the outlet end of the metering valve Sieves arranged while the entrance described, known valve at the outlet end of the mouthpiece has an outlet plate, in which in the direction of the longitudinal axis of the mouthpiece extending, mutually parallel bores are arranged to form exit holes, whose diameter is between 1 mm and 5 mm. Rearward of the exit plate, i. upstream from this, is up to the valve cone of the closing body a room in which the to be filled Liquid after closing the known valve retained by, among other things, the surface tension so that there is no dripping.
  • DE-U-85 07 345 describes a valve for filling liquids, in particular paints, with the help of which throttling of the flow and splashing should be avoided.
  • One Ring body is designed like a thickened middle part and serves to close the inlet opening. When closed, the thickened central part is above the inlet opening, so that the Product can not flow through existing in the thickened middle part holes. The latter enable the up and down movement of the piston.
  • DE-A-44 05 762 discloses a valve for solids containing fluids, such as abrasive solids Liquids or gases known. With this valve, abrasive forces are to be drastically reduced, so that the service life of the valve is increased. Appropriate measures to achieve the The aims sought are therefore directed to other objectives than in the present invention.
  • the object of the invention is therefore to design the valve of the type mentioned in such a way that both water-like liquids as well as those with a fiber content without clogging metered can be filled and at the same time without relative movements between packaging and Outlet means a liquid jet with little to no trapped air at low exit velocity is reached.
  • the thickened middle part of the closing body at its peripheral region with a wreath of itself in the direction of the longitudinal axis of the mouthpiece extending flow channels is provided, the forward and backward open in the Open space formed by the housing, and that the supply port behind the rear Entry surface of the flow channels opens laterally into the housing.
  • the closing body works like in the known case under opening and closing of the valve, characterized in that the valve cone of his Seat lifts off or pressed against the seat. Quite different than the known valve but the flow channels in this intermittently moving closure body, namely in the peripheral region of its thickened middle part. Towards the exit side, the new valve is open, i.
  • dripping is largely without the action a surface tension on the liquid under the valve seat prevents, and preferably you make the space under or in front of the valve seat as small as possible, and you make a reduction or eliminating the unwanted dripping.
  • the exiting liquid jet By the extending in the direction of the longitudinal axis of the mouthpiece flow channels is the radial component of the inflowing liquid into a laminar flow in the flow channels converted, so that the exiting liquid jet is so calmed that almost no air is trapped in the jet and thus could be entrained in the liquid. Also at The new valve manages the metered filling of the liquid without the outlet side of the valve must dive into the package
  • the exiting liquid jet has a small amount in large quantities Basic speed, and through the small wetted area under or in front of the valve seat is the Dripping minimized, although surrounded by the valve cone arranged by an annular wall remains so that there is no spraying when closing the valve.
  • the feed nozzle opens Although also laterally and in the rear area in the housing. But there are the size and location of the rear entry surface of the single annular flow channel is not defined.
  • the lateral Neck does not open behind an entrance surface of flow channels, because there are no such.
  • the closing body between the valve cone the front and the middle part a front cylinder and between the middle part and the back Sealing means comprises a rear cylinder.
  • the diameters of the front and the Rearward cylinder are preferably smaller than that of the thickened middle part. This will be in Connection with the approximately cylinder jacket-shaped side walls of the housing spaces before and created behind the thickened middle section, where the fluid can move as it does imposed by the geometry of the valve.
  • the diameters the flow channels are large in comparison to the outlet openings of known valves, are two to ten times, preferably three to six times. This is a constipation the individual flow channels by fibers contained in the liquid to be filled or Particles practically excluded.
  • the radially closed through holes in small radial distance from the outer periphery of the central part be arranged and the radially outward open Flow grooves each between two through holes designed directly on the peripheral surface be. If you see both the wreath of through holes as well as the flow grooves at the same time before, then you can achieve optimal opening areas in Relationship to the available cross section.
  • the cross-sectional area to be flowed through lies then in a very small space in the area of this described Wreaths creating a big one Passage cross-section for the liquid to be filled. If one chooses as an example that embodiment, in which only the flow grooves are used, then you can make them so deep, i. with such a big one Perform radial depth gauge that a kind of blade or wing between each two grooves results.
  • the flow channels in the peripheral region of the Closing bodies act like a laminator.
  • the length the thickened central portion of the valve body may be understood as a laminator become. This laminator eliminates virtually every radial component in the stream of through the flow channels moving liquid.
  • the essential part of the invention is this Laminator, with both water-like liquids as well as those with a fiber content or other Is allowed to fill solids.
  • the invention is furthermore advantageous characterized in that in the transition region between Poppet and front cylinder located Sealing surface with the valve seat in the mouthpiece in engagement can be brought and the valve cone in a free space between valve seat and front outer edge of the Mouthpiece protrudes.
  • the closing body points from the front to the rear or in the most usual vertical Arrangement of the valve in the filling machines from below upwards (contrary to the flow direction) behind the valve cone the front cylinder, behind the Middle part and behind this the rear cylinder on.
  • the valve cone expands up to an annular Surface, which is the sealing surface of the closure body represents.
  • the free space in the area of the front end the mouthpiece under or in front of the valve seat is expediently kept small. Then the dripping becomes negligible small or even eliminated. If the liquid is aftersageniströ anyway no influence on the valve seat needs more space, this free space seen short in the longitudinal direction of the mouthpiece become. The shorter the annular outer wall, the smaller this free space. To avoid Uncontrolled spraying of the liquid to the outside When closing the valve, however, the wall can the mouthpiece in front and thus the length of the free Space is not made arbitrarily short. It succeeds but an optimization as soon as the spraying is eliminated. Greater space then does not need to be designed too and you can even get its inner surfaces coat with a material or from such a material produce in which the relevant fluids run very fast. Then you can do not drip and the dripping stops.
  • the free space between the valve seat and the front Outer edge of the mouthpiece in its rear Range that ranges from one quarter to two thirds of the axial Length in front of the valve seat, of one in cross section crowned surface is formed.
  • the free space is divided into a crowned Part of the total length of a quarter to two Third and a roughly cylindrical part, which the remaining proportion of the axial length of this free Space between valve seat and outer edge of the Mouthpiece takes.
  • the crowned rear area of the free space widens in cross-section of one smaller inner angle ⁇ to a larger outer Angle a. While the latter only a better introduction or Ausgestalten the valve seat serves plays the smaller, inner angle ⁇ for the flow pattern of Fluid matter.
  • annular tear-off edge is attached. This one will by two approximately 90 ° against each other salaried surfaces formed such that the tear-off is annular. It is preferably in an approximately horizontal plane, i. transverse to the longitudinal axis of Mouthpiece; and at the height, which is the front cylindrical part of the free space of the rear spherical part separates. This annular edge ensures the tearing off of the outflowing liquid. This is the most forward, cylindrical Space regarding spray effect and the like no longer critical.
  • the invention is furthermore advantageous designed that the outer diameter of the thickened Part of the closing body is greater than the outer diameter of the front cylinder and both outside diameters are larger than the outer diameter the rear cylinder.
  • the said diameter is determined by the Laminator, i. the diameter of the flow channels, limited to larger values, because the larger the Outer diameter of the front cylinder is the more the area becomes smaller than the sum of the cross-sectional area of the flow channels.
  • valve has a selected valve one 47 mm as the outer diameter of the thickened middle part the closing body selected. His function This is the fluid supplied in the radial direction above the closing body in the room take the rear cylinder and there the Liquid evenly over the entrance surfaces of the distribute individual flow channels.
  • the up this height resulting circle represents the rearward or rear end of the laminator area, where itself gives an upper laminate edge, so to speak.
  • the new valve works very well good, i. in the back part next to the back one Cylinder, the liquid is collected and evenly supplied to the flow channels, in the flow channels in the thickened middle part of the closing body the elimination of the radial component takes place the flow, and next to the front cylinder the outflowing liquid is calmed.
  • the length of the thickened is Part of the closing body about 1.5 times its Outside diameter.
  • the diameter of the Naturalgangsl holes about one tenth of the axial length of the thickened part of the closing body is.
  • the axial length of the thickened middle part make the closure body as large as possible. But this is a practically unrealizable Desire, because you can through the laminator area the construction and the shape of the overall device and so that the housing does not last indefinitely. For example, for the calming area remain such a length that the liquid flow quietly around the front cylinder and that Flow pattern can calm down further.
  • its outer diameter, i.e. that of the thickened midsection of the Closing body should be smaller than its length.
  • the outer diameter of the front Cylinder may not be larger than the inner diameter the wreath of the passage holes.
  • the outside diameter of the rear cylinder can therefore be smaller than that of the front cylinder because in the rear area around the Rear cylinder around not like the front of a valve seat and thus an outflow cross section is formed.
  • the skilled person can continue the valve in that according to the invention the Length of the thickened middle part of the closing body is greater than the length of the front cylinder.
  • the Length of the thickened middle part of the closing body is greater than the length of the front cylinder.
  • the Length of the thickened middle part of the closing body is greater than the length of the front cylinder.
  • a pneumatic cylinder 30 fixed with piston rod 20.
  • Front side resp. below the piston rod 20 is screwed with a screw 9, which protrudes through a slider 8 and at the same time from the back with the neck 21 of the general screwed with 3 designated closing body is that thereby the slider 8 with the closing body 3 is firmly connected.
  • the holder 7 surrounds the housing 1, on which below a mouthpiece 2 is attached. The latter will be described in more detail below in connection with FIG 3 described. Dashed is in this as well as in figure 4, the longitudinal axis 16, with the longitudinal axis of the mouthpiece 2 coincides, shown. Towards this Longitudinal axis is the closing body 3 in the direction of Double arrow 26 arranged vertically movable up and down, driven by the pneumatic cylinder 30.
  • One Feeding nozzle 24 opens laterally above in the housing 1, where the upper, back part of the closing body 3 is located. This is over a membrane 5 off Rubber or silicone sealed.
  • an O-ring 15 which seals the valve against an outside below, for example, arranged hygiene room or Sterile area of a filling machine seals.
  • the assembly is designed so that you can Slider 8 in the holder 7 hineinsteckt. From below will then the closing body 3 with the slipped over, rotationally symmetrical and cup-shaped Membrane 5 inserted upwards, with the feather key 6 is already inserted in the groove.
  • the approach 21 am rear end of the closing body 3 now protrudes upwards into a corresponding central recess of the slider 8 and is connected to the lower part of Bolt 9 screwed, after which the connection with the piston rod 20 and the pneumatic drive cylinder 30 takes place.
  • the union nut 11 could twist the membrane 5, and therefore you can from below into the housing 1 and see if the membrane 5 is correct is placed.
  • the air above and behind behind the membrane 5 can through the gap 10 on the slider 8 escape upwards, so that no vacuum or overpressure in the space behind the membrane 5 arise can.
  • the closing body 3 has at its lower or front end of a valve plug 32, on whose extended back end is the front one Cylinder 33 connects.
  • the transition region i. the Ring surface between the poppet 32 and the front Cylinder 33 is the actual sealing surface 34, the can create against the valve seat 35.
  • the sealing surface 34th is the sealing surface 34th with the valve closing on the valve seat 35.
  • the latter (37 and 38) are parallel to each other and in the form of a closed wreath at small intervals next to each other and are forward and down open at the top back so that the liquid in operation can flow from top to bottom.
  • the rear closes Cylinder 39 on, at its rear upper End connected to the approach 21, if necessary is one piece.
  • the mouthpiece shown in Figures 1 to 3 2 can be seen more clearly with reference to FIG. You can see from the front to the back or down to the top the front outer edge 14 of the mouthpiece 2, which the foremost part of the whole valve is and about the also the tip of the valve cone 32 does not protrude forward. Backwards behind the front outer edge 14, the annular outer wall 40 biases one extended, cylindrical space 41, which after behind by an annular shoulder 42 and a central, circular opening 43 is limited. Through this central Opening 43 protrudes as shown in Figures 1 and 2, the poppet 32 forward through.
  • the slider 8 is removed shown.
  • the slider 8 may preferably be made of a material. such as PEEK, an ester concrete with good sliding properties.
  • the closing body 3 may be made of PEEK exist, because this material can be processed very well, is wear-resistant and in the case of a sealing seat this one rubs up.
  • the closing body can be but also made of stainless steel.
  • Figures 6 to 8 allow a detailed Presentation and description of the closing body 3.
  • the length of the thickened middle part is in Figure 6 denoted by L, the length of the front cylinder 33 with I '.
  • the inner diameter of the rim of the through holes 38 in axial plan view in the direction of the longitudinal axis 16 inner dashed circle 51 is designated d 1 .
  • the opening width (which is slightly smaller than the diameter) of the flow groove 37 is denoted by d 2 .
  • d 3 denotes the diameter of a through hole 38.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Lift Valve (AREA)
  • Basic Packing Technique (AREA)

Claims (10)

  1. Valve pour assurer le remplissage dosé de liquides dans des emballages, comportant une enveloppe (1) avec une tubulure d'amenée (24), une embouchure avant (2) et un dispositif de sortie (près de 14), un corps d'obturation (3), entraíné de façon à pouvoir se déplacer dans l'enveloppe (1), pouvant être mis en prise avec un siège de soupape (35) et présentant à l'avant un cône de soupape (32) ainsi qu'une partie centrale épaissie en arrière de ce cône, ainsi que des dispositifs d'étanchéité arrière (5), caractérisée en ce que la partie centrale épaissie (36) du corps d'obturation (3) est, au niveau de sa zone périphérique, pourvue d'une couronne de canaux d'écoulement (37, 38) s'étendant dans la direction de l'axe longitudinal (16) de l'embouchure (2), canaux qui, ouverts vers l'avant et vers l'arrière, débouchent dans l'espace intérieur (46, 47) formé par l'enveloppe (1), et en ce que la tubulure d'entrée (24) débouche derrière la surface d'entrée arrière des canaux d'écoulement (37, 38) sur le côté de l'enveloppe (1).
  2. Valve selon la revendication 1, caractérisée en ce que le corps d'obturation (3) entre le cône de soupape (32) à l'avant et la partie centrale (36) présente un cylindre avant (33), ainsi qu'un cylindre arrière (39) entre la partie centrale (36) et les dispositifs d'étanchéité arrière (5).
  3. Valve selon la revendication 1 ou 2, caractérisée en ce que les canaux d'écoulement (37, 38) sont formés par des rainures d'écoulement (37), radialement ouvertes vers l'extérieur, et/ou par des trous débouchants (38), radialement fermés, disposés sur la périphérie de la partie centrale (36) du corps d'obturation (3).
  4. Valve selon l'une des revendications 1 à 3, caractérisée en ce que la surface d'étanchéité (34) se trouvant dans la zone de transition entre le cône de soupape (32) et le cylindre avant (33) peut être mise en prise avec le siège de soupape (35) dans l'embouchure (2), et le cône de soupape (32) dépasse dans un espace libre (45) situé entre le siège de soupape (35) et l'arête extérieure avant (14) de l'embouchure (3).
  5. Valve selon l'une des revendications 1 à 4, caractérisée en ce que l'espace libre (45) entre le siège de soupape (35) et l'arête extérieure avant (14) de l'embouchure (2) est, dans sa zone arrière, qui se trouve entre le quart et les deux tiers de la longueur axiale (l) en avant du siège de soupape (35), formé d'une surface (44) ayant une section transversale convexe.
  6. Valve selon l'une des revendications 1 à 5, caractérisée en ce qu'une arête de décollement annulaire (52) est disposée à l'extrémité avant de l'espace libre (45) entre le siège de soupape (35) et l'arête extérieure avant (14) de l'embouchure (2).
  7. Valve selon l'une des revendications 1 à 6, caractérisée en ce que le diamètre extérieur (D) de la partie centrale épaissie (36) du corps d'obturation (3) est supérieur au diamètre extérieur (d) du cylindre avant (33), et les deux diamètres extérieurs (D, d) sont supérieurs au diamètre extérieur (d') du cylindre arrière (39).
  8. Valve selon l'une des revendications 1 à 7, caractérisée en ce que la longueur (L) de la partie centrale épaissie (36) du corps d'obturation (3) est approximativement égale à 1,5 fois son diamètre extérieur (D).
  9. Valve selon l'une des revendications 1 à 8, caractérisée en ce que le diamètre (d3) des trous traversants (38) est approximativement égal au dixième de la longueur axiale (L) de la partie centrale épaissie (36) du corps d'obturation (3).
  10. Valve selon l'une des revendications 1 à 9, caractérisée en ce que la longueur (L) de la partie épaissie (36) du corps d'obturation (3) est supérieure à la longueur (l') du cylindre avant (33).
EP98959795A 1998-01-24 1998-10-23 Soupape de soutirage pour liquides contenant des fibres Expired - Lifetime EP1049624B2 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19802692 1998-01-24
DE19802692A DE19802692A1 (de) 1998-01-24 1998-01-24 Abfüllventil für faserhaltige Flüssigkeiten
PCT/EP1998/006739 WO1999037543A1 (fr) 1998-01-24 1998-10-23 Soupape de soutirage pour liquides contenant des fibres

Publications (3)

Publication Number Publication Date
EP1049624A1 EP1049624A1 (fr) 2000-11-08
EP1049624B1 EP1049624B1 (fr) 2002-02-13
EP1049624B2 true EP1049624B2 (fr) 2005-03-09

Family

ID=7855582

Family Applications (1)

Application Number Title Priority Date Filing Date
EP98959795A Expired - Lifetime EP1049624B2 (fr) 1998-01-24 1998-10-23 Soupape de soutirage pour liquides contenant des fibres

Country Status (7)

Country Link
US (1) US6279625B1 (fr)
EP (1) EP1049624B2 (fr)
AU (1) AU1557199A (fr)
DE (2) DE19802692A1 (fr)
ES (1) ES2170542T5 (fr)
TW (1) TW563695U (fr)
WO (1) WO1999037543A1 (fr)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ATE264808T1 (de) * 2001-11-22 2004-05-15 Sig Simonazzi Spa Strömungsverteilervorrichtung, insbesondere für eine füllventileinrichtung
DE102004003489B3 (de) * 2004-01-23 2005-06-23 Sig Technology Ltd. Ventil zum Abfüllen fließfähiger Produkte mit und ohne stückigen Anteil
CN102642798A (zh) * 2012-04-10 2012-08-22 金坛市精锐机械科技有限公司 防滴漏防挂丝液体灌装阀
DE102014012306A1 (de) * 2014-08-19 2016-02-25 Thomas Magnete Gmbh Steuerventil mit Bauteilen aus Kunststoff
WO2017216197A1 (fr) * 2016-06-13 2017-12-21 Nestec S.A. Dispositif, système et procédé permettant de doser un produit alimentaire pâteux comportant des morceaux solides et une sauce dans un récipient
CN109229850B (zh) * 2018-08-24 2019-12-06 浙江龙腾电工器材有限公司 纳米新材料防泄漏安全防护型存储装置
CN109205537B (zh) * 2018-10-08 2023-12-15 广州达意隆包装机械股份有限公司 一种灌装阀及灌装设备
KR102521370B1 (ko) * 2023-01-31 2023-04-13 이경옥 김치 정량 공급용 국물 오염방지 노즐장치

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DD39350A (fr) *
DE39350C (de) C. F. HOPPE und i SELBMANN in Dresden, Gerichtsstr. 8. Vom 22. ! September 1886 ab Selbstthätiger Schubriegel für zwei-I Hüglige Schrankthüren
US936792A (en) * 1908-08-18 1909-10-12 Joseph Merritt Packing-machine.
DE2734251C3 (de) 1977-07-29 1985-08-29 Altstädter Verpackungsvertriebs Gesellschaft mbH, 6102 Pfungstadt Vorrichtung zum Einfüllen einer dosierten Fließmittelmenge in eine Verpackung
DE8507345U1 (de) * 1985-03-13 1985-05-23 Füll, Werner, 6272 Niedernhausen Kombiniertes Füll- und Drosselventil für Flüssigkeiten
US5145008A (en) * 1985-04-05 1992-09-08 Crown Cork & Seal Company, Inc. Filling valve for counterpressure filling of cans
JPH0642964Y2 (ja) 1989-03-24 1994-11-09 四国化工機株式会社 液体定量充填装置
DE4405762B4 (de) * 1994-02-23 2006-02-09 Verfahrenstechnik Hübers GmbH Ventil für feststoffhaltige Fluide
GB2288220A (en) * 1994-03-26 1995-10-11 Alan Jeffrey Holmes Dispensing liquids
DE4411629A1 (de) * 1994-04-02 1995-11-02 Tetra Laval Holdings & Finance Ventil zum Abfüllen von Flüssigkeiten in Verpackungen
US5586576A (en) 1994-09-28 1996-12-24 Tetra Laval Holdings & Finance S.A. Dosing valve having seal failure detection
US5664487A (en) 1996-09-19 1997-09-09 Tetra Laval Holdings & Finance Sa Sanitary filling nozzle mount

Also Published As

Publication number Publication date
ES2170542T5 (es) 2005-10-01
WO1999037543A1 (fr) 1999-07-29
ES2170542T3 (es) 2002-08-01
AU1557199A (en) 1999-08-09
DE19802692A1 (de) 1999-07-29
TW563695U (en) 2003-11-21
US6279625B1 (en) 2001-08-28
EP1049624B1 (fr) 2002-02-13
EP1049624A1 (fr) 2000-11-08
DE59803107D1 (de) 2002-03-21

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