EP0694341B1 - Vorrichtung zur Reinigung von Sieben - Google Patents

Vorrichtung zur Reinigung von Sieben Download PDF

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Publication number
EP0694341B1
EP0694341B1 EP95113855A EP95113855A EP0694341B1 EP 0694341 B1 EP0694341 B1 EP 0694341B1 EP 95113855 A EP95113855 A EP 95113855A EP 95113855 A EP95113855 A EP 95113855A EP 0694341 B1 EP0694341 B1 EP 0694341B1
Authority
EP
European Patent Office
Prior art keywords
sieve
arms
cleaning
screen
cleaner
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
EP95113855A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0694341A1 (de
Inventor
Alois Keller
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.)
Buehler AG
Original Assignee
Buehler AG
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 Buehler AG filed Critical Buehler AG
Priority to DE9321302U priority Critical patent/DE9321302U1/de
Publication of EP0694341A1 publication Critical patent/EP0694341A1/de
Application granted granted Critical
Publication of EP0694341B1 publication Critical patent/EP0694341B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
    • B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
    • B07B1/00—Sieving, screening, sifting, or sorting solid materials using networks, gratings, grids, or the like
    • B07B1/46—Constructional details of screens in general; Cleaning or heating of screens
    • B07B1/50—Cleaning
    • B07B1/52—Cleaning with brushes or scrapers
    • B07B1/522—Cleaning with brushes or scrapers with brushes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
    • B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
    • B07B1/00—Sieving, screening, sifting, or sorting solid materials using networks, gratings, grids, or the like
    • B07B1/28—Moving screens not otherwise provided for, e.g. swinging, reciprocating, rocking, tilting or wobbling screens
    • B07B1/38—Moving screens not otherwise provided for, e.g. swinging, reciprocating, rocking, tilting or wobbling screens oscillating in a circular arc in their own plane; Plansifters
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
    • B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
    • B07B1/00—Sieving, screening, sifting, or sorting solid materials using networks, gratings, grids, or the like
    • B07B1/46—Constructional details of screens in general; Cleaning or heating of screens
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
    • B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
    • B07B1/00—Sieving, screening, sifting, or sorting solid materials using networks, gratings, grids, or the like
    • B07B1/46—Constructional details of screens in general; Cleaning or heating of screens
    • B07B1/50—Cleaning
    • B07B1/54—Cleaning with beating devices
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27L—REMOVING BARK OR VESTIGES OF BRANCHES; SPLITTING WOOD; MANUFACTURE OF VENEER, WOODEN STICKS, WOOD SHAVINGS, WOOD FIBRES OR WOOD POWDER
    • B27L11/00—Manufacture of wood shavings, chips, powder, or the like; Tools therefor

Definitions

  • the invention relates to a device for cleaning Seven, especially the sieves of plan sifters in mills, which in a sieve box with base plate and fine material discharge as well as an insert sieve frame as freely movable cleaning elements act.
  • a plansifter especially the large plansifter or square plansifter, is a large cube shape with large flat elements and is a special separating device which is characteristic for the sighting of shot, semolina and flour-like products in milling technology, and for sorting different types of grains such as Wheat, rye, corn, barley, etc. is used.
  • the plan sifter is the machine that relates cleaning requires the greatest effort.
  • Time is increasingly important that the processing machines as self-cleaning as possible, if necessary but are easy to clean with little effort.
  • the sieve frames of plansifter sieves have a smooth today Floor on which the freely movable floor scraper lie on. Between the floor and the covering of the sieve are usually corrugated grids or support grids for support arranged by cleaning elements. But from EP-A-330 846 are already Corrugated grid-free designs are known.
  • the cleaning elements can e.g. braided strap material, which on the underside is provided with a metal button and the when moving over the corrugated mesh start to vibrate so that it is slightly against the wire mesh beat and clean them like this. This also causes a significant one Noise level.
  • Screen cleaner in the form of simultaneous triangles US-PS 2086199
  • Screen cleaners can also be used with 846, without the use of corrugated mesh
  • 846 without the use of corrugated mesh
  • these screen cleaners are supported with a stem-like foot tiltable on the smooth sieve bottom. Through the cantilevered arms of the star becomes a high moment of inertia with a relatively low total weight reached during the tilting movement, so that sufficiently violent blows on the Screen covering can be exercised.
  • the arms of these screen cleaners are with depressions provided that clog quickly and an additional cleaning effort require.
  • the invention was based on the object, a device for cleaning of sieves, especially the sieve frame - so-called sieve cleaners - see above to design that the disadvantages of the prior art described avoided be, the handling and especially the cleaning performance as well as the self-cleaning of the screen cleaner should be improved.
  • the solution according to the invention is characterized in that the arms of the screen cleaner have a square cross-sectional shape with a roof-shaped elevation. This roof-like elevation in turn has a triangular cross section.
  • the screen cleaner is lying on the base plate in the Clear fields can be inserted.
  • the screen cleaner is with a wobble foot provided, which is preferably made of non-metal material is made in the area of the vertical axis of gravity the screen cleaner is arranged for the purpose that due to the corresponding wobbling movements a permanent one Alternation of screen fabric cleaning and floor clearing takes place.
  • the screen cleaner is a Boomerang with two cantilever arms, which after have the above cleaning agents for the screen fabric, preferably on the screen cleaner, opposite to a floor and slot clearing nose are arranged on the projecting arms becomes.
  • a second embodiment it has three arms, with detergent on at least two arms are arranged for the screen cloth, and one arm one after has elongated bottom and slot clearing nose on the outside.
  • it is 4-armed, wherein at least one arm has an elongated bottom and Has slot clearing nose.
  • each Lot be it the base plate or the screen mesh, with cleaned with great frequency. Even the smallest quantities of fine goods are carried away.
  • the screen cleaner should be chosen as large that it has a certain mass and with its largest horizontal dimension more than 50% of the corresponding smallest dimension of the individual clearing fields. A optimal cleaning effect has also been found in all tested Shapes emerge when the clearing fields formed in the floor plan if possible have a square shape, because then the Optimally clean screen cleaner in really all directions or quickly clear out the product.
  • the previous optimal function arose when the arms have a cross section with a roof-shaped cant, with the top up and the broad part down. This supports not just the product movement over the bottom plate, but helps that the screen cleaner itself without product buildup stays clean.
  • the arms preferably point upwards various cleaning agents such as bristles or knobs and / or cleaning ribs. The floor cleaning takes place optimal if a sliding foot is only arranged on one arm becomes.
  • the screen cleaner should be built a little lower than that free height between the floor and the screen covering.
  • the screen cleaner in the middle area with a wobble foot provided so that the extreme ends of the arms next to the horizontal movement of the screen cleaner above the floor a constant interplay of up and down movements, up and down, edit both levels.
  • Another particularly advantageous embodiment lies in that the arms at their extreme ends with a Baffle head made of plastic.
  • this serves as protection for the fabric detergent in the form of
  • pimples or brushes make it possible low design of the screen frame, and it supports the Jumping movement of the screen cleaner so that the element does not Takes damage.
  • the invention finds particular application in one application Plansifter, whose housing has several sieve stacks, which each from a larger number of sieve boxes with base plates, Sieve frames and sieve channels exist and a have a rectangular or square shape, the with Sieve mesh covered sieve frame in relation to the sieve box are interchangeable and the sieve boxes above the base plate free diarrhea and product discharge areas together with the sieve frames form, in the screen cleaner, on the flat bottom plate lying on top, can be inserted, the sieve frame are designed to be rust-free to reduce the sound pressure from the source noise.
  • the noise of a large plansifter has been surprisingly significantly reduced a noise level in a plan sifter according to the invention of just over 72 dB (A), compared to 84 dB (A) with comparable plansifters of the prior art.
  • An important measure is the choice of the special one Screen cleaner preferably made of non-metal material and the Sieve frame without the previous metal support gratings for the screen fabric cleaners seen. There are no more relative movements from metal to metal.
  • a sieve box 1 has several discharge channels, two discharge channels for the screen rejection, or for the coarse goods, 2A and 2A 'and a discharge channel 2F for the sieve diarrhea or the fine goods.
  • a screen frame 3 is drawn in Figure 2 in a slightly inclined position and provides a laying movement of the sieve frame 3 on the sieve box 1.
  • the inner surface of the sieve box 1, below the sieve frame, is with a flat bottom plate 4 closed so that the fine goods respectively the sieve diarrhea only through side slit openings 5 from the bottom plate 4 can be cleared (Figure 3).
  • screen cleaners 6 or 6 ' are already placed, before the sieve frame 3 is inserted.
  • the screen cleaners 6, respectively 6 ' have a double function, with a scraper foot 7 should the sieve diarrhea on the flat base plate 4 be cleared.
  • the sieve box 1 points directly above the floor Web strips 12 'on which the surface of the base plate 4 in divide three longitudinal fields. These web strips 12 'serve primarily increasing the stability of the bottom plate 4.
  • the sieve frame 3 also has web strips 12 which are exactly above the web strips 12 of the base plate are arranged.
  • the sieve frames also have transverse web strips 13. So does not result here in the example of FIGS. 1-4 only clearing fields B, D and F, as they are due to the Web strips 12 'of the base plate 4, but through the additional subdivision of the sieve frame 3 with the cross bars 13 additional clearing fields A, C and E. The number of The clearing fields (A ... F) are separated by the corresponding subdivisions of the insert sieve frame.
  • a screen cleaner 6 is inserted, which combines both keeps the screen mesh free at the top and clears the bottom down.
  • Figures 3 and 4 each show a section of Figure 2, there are two screen boxes 1 on top of each other placed.
  • a multi-arm design of the screen cleaners 6, 6 ' has the great advantage that every area of the screen mesh is accurate as with the base plate, right down to the far corners is kept clean.
  • the screen cleaners ensure a optimal cleaning effect in all room directions.
  • the relative large mass of the screen cleaner 6, 6 ', as well as the low-friction base plate support a very intensive Movement of the screen cleaners 6, 6 '. Even during longer periods
  • the sieve cleaner is particularly capable of operating periods Keep screen mesh and base plate clean.
  • FIG. 5 shows an almost ideal square clearing or Cleaning field division with 9 fields, there is the screen fabric 10 is shown only over half the screen frame 3.
  • the length of a cleaning field is with Län and the Width marked with Bre. Considerable for the screen covering Poor.
  • the screen frame made of thin and lightweight metal strips are made, which in particular the frame profiles 13, 13 'and 14 relates.
  • the screen frame 3 only on one side is a covering namely the mesh fabric tension on.
  • the sieve frame is open, so that Sieve cloth 10 now for the first time with insertion or replacement sieve frames equally freely accessible on both sides and is easy to clean.
  • the whole light metal frame can be made in one piece in metal die casting or preferably as a welded construction getting produced. It is very important that the framework minimal deflection in the elastic range, as a result the tensile forces from the fabric covering, which in operation maintaining tension in the mesh supported. The deflection is with line 15 ( Figure 5) indicated symbolically.
  • line 15 Figure 5
  • the sieve frame sufficient inherent rigidity with very thin frame profiles own, and compared to the known screen frame only have about half the thickness D, they need little Space for replacement storage as can be seen in Figure 6 is.
  • the web strips 12, 12 'made from a corresponding metal profile which can be a solid or hollow profile.
  • an all-metal frame has been proven. Such a frame is extremely rigid if a corresponding elasticity value is preferred becomes.
  • the screen frame can also be used as a metal, wood or metal-plastic composite can be formed.
  • FIG. 7 shows a stack of 8 stacked one on top of the other Sieve box 1, 3-arm sieve cleaners are inserted.
  • FIG. 8 shows an entire square plan sifter, with the door 18 removed for a sieve compartment and an entire one Sieve stack 16 is visible.
  • the sieve stack 16 has one known square plan sifter 24 sieve box 1. With the Sieve box, the number of sieve boxes and sieve frames Increase by at least 10% while maintaining the spaces for product conveyance above the sieve and at the same height of the plan sifter housing.
  • the entire plan sifter 17 has one Not shown momentum drive, of all seven one forcing circular motion, the plan sifter 17 hung on bars 19 as a cantilever chair.
  • the good is about Inlet connection 20, 20 'etc. fed to the sieve stacks and The sorted goods are discharged via discharge ports 21, 21 'etc.
  • 9a and 9c is a screen cleaner as a boomerang 30 formed, with two typical, angled to each other Cleaning arms 31, respectively. 31 '.
  • the two arms are provided with knobs 32 at the top, which the function of Have screen fabric cleaning.
  • the boomerang 30 is in the vertical Center of gravity S provided with a wobble foot 14, which by a dimension "X" of a few millimeters compared to the two support feet 33 respectively. 33 'protrudes.
  • the boomerang 30 opposite to the two arms 31 resp. 31 'a Bottom and slot clearing nose 34 which projects as far as that the corresponding part of the fine material through the slot 5 can push through, as expressed in Figure 9c.
  • the boomerang 30 in the direction of the bottom and slot clearing nose 34 a push arch 36.
  • the cleaning element it is very advantageous if only the wobble foot 14 protrudes, the support feet 33, 33 'and the lower floor clearing edge 37 of the slot and floor clearing nose 34 are of identical height. This creates a free one Interplay between the operational elements, and it result statistically, with very high accuracy, accordingly approximately the same number of work assignments each.
  • the knobs 32 are used for cleaning of the screen cloth 1 and the bottom and slot clearing nose 34 for cleaning the slot 5.
  • FIG. 10 shows a 3-star 40, in which three Arms 41, 41 'and 41' 'are offset from each other by 120 °.
  • the knobs 32 are each of the arms outwards as a baffle 42 trained who the actual abutment part for the screen cleaner represents.
  • the arms 41, 41 'and 41' 'in the Cross section each have a roof-like shape.
  • the two arms 41, 41 'are identical, but the arm 41' ' has an additional one a bottom and slot clearing nose 34.
  • FIG. 11-11b show a 4-star 50.
  • the knobs 32 are in use for cleaning of the screen fabric, whereas in FIG. 11b bristles which on the arm 51 '' ', clean the screen fabric 10.
  • FIG. 11 shows the 4-star cleaner 50 in the phase cleaning a corner of the bottom of the sieve box 4.
  • a pile 53 is directly in the slot opening according to arrow B-G 5 pushed by the relative movement B-S between the 4-star cleaner 50 and the plansifter or the Soil 4 according to arrow B-P. It is possible to use screen cleaners to build even more poor, but these have in relation to the Cleaning intensity no longer benefits.

Landscapes

  • Combined Means For Separation Of Solids (AREA)
  • Filters For Electric Vacuum Cleaners (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)
  • Mechanical Treatment Of Semiconductor (AREA)
  • Paper (AREA)
  • Filtration Of Liquid (AREA)
  • Confectionery (AREA)
  • Brushes (AREA)
  • Housing For Livestock And Birds (AREA)
  • Details Of Aerials (AREA)
  • Heat Treatment Of Strip Materials And Filament Materials (AREA)
  • Vehicle Body Suspensions (AREA)
  • Food-Manufacturing Devices (AREA)
  • Heat-Pump Type And Storage Water Heaters (AREA)
  • Separation By Low-Temperature Treatments (AREA)
  • Medicines Containing Plant Substances (AREA)
  • Manufacture Or Reproduction Of Printing Formes (AREA)
  • Led Devices (AREA)
  • Navigation (AREA)
  • Adjustment And Processing Of Grains (AREA)
  • Seasonings (AREA)
  • Centrifugal Separators (AREA)
  • Spinning Or Twisting Of Yarns (AREA)
  • Cyclones (AREA)
  • Filtering Of Dispersed Particles In Gases (AREA)
  • Polarising Elements (AREA)
EP95113855A 1992-02-29 1993-02-24 Vorrichtung zur Reinigung von Sieben Expired - Lifetime EP0694341B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE9321302U DE9321302U1 (de) 1992-02-29 1993-02-24 Vorrichtung zum Reinigen von Sieben

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
CH631/92 1992-02-29
CH63192 1992-02-29
CH631/92A CH685604A5 (de) 1992-02-29 1992-02-29 Plansichter.
EP93903774A EP0584302B1 (de) 1992-02-29 1993-02-24 Vorrichtung für plansichter

Related Parent Applications (2)

Application Number Title Priority Date Filing Date
EP93903774A Division EP0584302B1 (de) 1992-02-29 1993-02-24 Vorrichtung für plansichter
EP93903774.3 Division 1993-02-24

Publications (2)

Publication Number Publication Date
EP0694341A1 EP0694341A1 (de) 1996-01-31
EP0694341B1 true EP0694341B1 (de) 1999-10-06

Family

ID=4191515

Family Applications (2)

Application Number Title Priority Date Filing Date
EP95113855A Expired - Lifetime EP0694341B1 (de) 1992-02-29 1993-02-24 Vorrichtung zur Reinigung von Sieben
EP93903774A Expired - Lifetime EP0584302B1 (de) 1992-02-29 1993-02-24 Vorrichtung für plansichter

Family Applications After (1)

Application Number Title Priority Date Filing Date
EP93903774A Expired - Lifetime EP0584302B1 (de) 1992-02-29 1993-02-24 Vorrichtung für plansichter

Country Status (18)

Country Link
US (1) US5538139A (ja)
EP (2) EP0694341B1 (ja)
JP (1) JP2931406B2 (ja)
KR (1) KR100194073B1 (ja)
CN (1) CN1032409C (ja)
AT (2) ATE141062T1 (ja)
BR (1) BR9303968A (ja)
CH (1) CH685604A5 (ja)
CZ (1) CZ286148B6 (ja)
DE (3) DE59309828D1 (ja)
DK (2) DK0694341T3 (ja)
EE (1) EE9400228A (ja)
ES (2) ES2139804T3 (ja)
GR (2) GR3020756T3 (ja)
HU (1) HU216693B (ja)
RU (1) RU2098200C1 (ja)
SK (1) SK281264B6 (ja)
WO (1) WO1993016815A1 (ja)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2016062826A1 (de) 2014-10-24 2016-04-28 Bühler AG Siebreiniger, siebeinheit und verfahren

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US5598931A (en) * 1994-10-11 1997-02-04 Nisshin Flour Milling Co., Ltd. Sifter frame for powder particle sifter
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ATE198716T1 (de) 1996-08-20 2001-02-15 Buehler Ag Plansichter
DE19706601C1 (de) * 1997-02-20 1998-11-12 Buehler Ag Siebrahmen für Plansichter und Verfahren zu dessen Herstellung
US5887727A (en) * 1997-03-08 1999-03-30 Ames; John L. Small hardware sorting bed and transport device
US6439392B1 (en) 1997-09-02 2002-08-27 Southwestern Wire Cloth, Inc. Vibrating screen assembly with tubular frame
US5967336A (en) * 1997-09-02 1999-10-19 Southwestern Wire Cloth, Inc. Vibrating screen assembly with improved frame
ATE218932T1 (de) * 1997-11-29 2002-06-15 Buehler Ag Siebreiniger für plansichter
DE19825617A1 (de) * 1998-06-08 1999-12-09 Filip Gmbh Muellereibuersten Vorrichtung zur Siebrahmen- und Bodenreinigung eines Siebkastens
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WO2014019925A1 (de) 2012-08-02 2014-02-06 Bühler AG Siebreiniger für plansichter
WO2014037564A1 (de) * 2012-09-07 2014-03-13 Bühler AG Verfahren und vorrichtung zum auftrennen von partikeln aus sonnenblumen-extraktionsschrot in mindestens eine fraktion mit einem hohen proteingehalt und in mindestens eine fraktion mit einem hohen zellulosegehalt
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CN103551306B (zh) * 2013-10-22 2016-04-13 上海申嘉三和环保科技开发有限公司 筛网清料装置及其清料器
CN106552766B (zh) * 2015-09-25 2019-05-14 中粮工程装备（张家口）有限公司 高方筛传动架和高方筛
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KR20200044942A (ko) 2017-09-01 2020-04-29 데릭 코포레이션 스크리닝을 위한 디블라인딩 장치 및 방법
RU2670109C1 (ru) * 2017-09-13 2018-10-18 Михаил Иванович Костин Устройство для просеивания сыпучего материала
US10730076B2 (en) * 2018-01-19 2020-08-04 Ocrim S.P.A. Interchangeable backwire/combined sieve and dynamic combined cleaner
WO2019165086A1 (en) * 2018-02-21 2019-08-29 Koerner Lloyd Multilevel sieve system and method of use
CN109107876A (zh) * 2018-08-20 2019-01-01 从江县鹏欣圆黄牛生态养殖农民专业合作社 一种养牛用饲料加工装置
EP3785813B1 (de) * 2018-08-20 2024-04-17 Bühler AG Schüttgutreinigungsvorrichtung mit einem hohlen tragrahmen
CN111842096A (zh) * 2019-04-24 2020-10-30 布勒（无锡）商业有限公司 筛格及包括其的筛分设备
CN112495745A (zh) * 2020-11-05 2021-03-16 温州沫系服装有限公司 纽扣次品筛选设备
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HU216693B (hu) 1999-08-30
HUT65718A (en) 1994-07-28
EP0584302B1 (de) 1996-08-07
DE59309828D1 (de) 1999-11-11
DE59303378D1 (de) 1996-09-12
ES2091596T3 (es) 1996-11-01
CZ286148B6 (cs) 2000-01-12
ES2139804T3 (es) 2000-02-16
EE9400228A (et) 1996-02-15
GR3031791T3 (en) 2000-02-29
ATE141062T1 (de) 1996-08-15
JPH06507119A (ja) 1994-08-11
KR100194073B1 (ko) 1999-06-15
US5538139A (en) 1996-07-23
RU2098200C1 (ru) 1997-12-10
EP0694341A1 (de) 1996-01-31
CN1032409C (zh) 1996-07-31
EP0584302A1 (de) 1994-03-02
SK281264B6 (sk) 2001-01-18
GR3020756T3 (en) 1996-11-30
BR9303968A (pt) 1994-08-02
JP2931406B2 (ja) 1999-08-09
CN1079678A (zh) 1993-12-22
SK132993A3 (en) 1994-05-11
DE9321302U1 (de) 1997-02-27
DK0584302T3 (da) 1996-11-04
CH685604A5 (de) 1995-08-31
CZ255493A3 (en) 1994-04-13
ATE185291T1 (de) 1999-10-15
DK0694341T3 (da) 2000-03-27
WO1993016815A1 (de) 1993-09-02
HU9302673D0 (en) 1994-01-28

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