DE69421211D1 - System zur Abwasserbehandlung - Google Patents
System zur AbwasserbehandlungInfo
- Publication number
- DE69421211D1 DE69421211D1 DE69421211T DE69421211T DE69421211D1 DE 69421211 D1 DE69421211 D1 DE 69421211D1 DE 69421211 T DE69421211 T DE 69421211T DE 69421211 T DE69421211 T DE 69421211T DE 69421211 D1 DE69421211 D1 DE 69421211D1
- Authority
- DE
- Germany
- Prior art keywords
- treatment system
- wastewater treatment
- wastewater
- treatment
- 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
Classifications
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F9/00—Multistage treatment of water, waste water or sewage
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D21/00—Separation of suspended solid particles from liquids by sedimentation
- B01D21/0003—Making of sedimentation devices, structural details thereof, e.g. prefabricated parts
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D21/00—Separation of suspended solid particles from liquids by sedimentation
- B01D21/0006—Settling tanks provided with means for cleaning and maintenance
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D21/00—Separation of suspended solid particles from liquids by sedimentation
- B01D21/0012—Settling tanks making use of filters, e.g. by floating layers of particulate material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D21/00—Separation of suspended solid particles from liquids by sedimentation
- B01D21/003—Sedimentation tanks provided with a plurality of compartments separated by a partition wall
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D21/00—Separation of suspended solid particles from liquids by sedimentation
- B01D21/003—Sedimentation tanks provided with a plurality of compartments separated by a partition wall
- B01D21/0036—Horizontal partition walls
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D21/00—Separation of suspended solid particles from liquids by sedimentation
- B01D21/0039—Settling tanks provided with contact surfaces, e.g. baffles, particles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D21/00—Separation of suspended solid particles from liquids by sedimentation
- B01D21/0039—Settling tanks provided with contact surfaces, e.g. baffles, particles
- B01D21/0042—Baffles or guide plates
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D21/00—Separation of suspended solid particles from liquids by sedimentation
- B01D21/02—Settling tanks with single outlets for the separated liquid
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D21/00—Separation of suspended solid particles from liquids by sedimentation
- B01D21/02—Settling tanks with single outlets for the separated liquid
- B01D21/04—Settling tanks with single outlets for the separated liquid with moving scrapers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D21/00—Separation of suspended solid particles from liquids by sedimentation
- B01D21/18—Construction of the scrapers or the driving mechanisms for settling tanks
- B01D21/183—Construction of the scrapers or the driving mechanisms for settling tanks with multiple scraping mechanisms
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D21/00—Separation of suspended solid particles from liquids by sedimentation
- B01D21/24—Feed or discharge mechanisms for settling tanks
- B01D21/2405—Feed mechanisms for settling tanks
- B01D21/2411—Feed mechanisms for settling tanks having a tangential inlet
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D21/00—Separation of suspended solid particles from liquids by sedimentation
- B01D21/24—Feed or discharge mechanisms for settling tanks
- B01D21/2427—The feed or discharge opening located at a distant position from the side walls
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D21/00—Separation of suspended solid particles from liquids by sedimentation
- B01D21/24—Feed or discharge mechanisms for settling tanks
- B01D21/245—Discharge mechanisms for the sediments
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D21/00—Separation of suspended solid particles from liquids by sedimentation
- B01D21/24—Feed or discharge mechanisms for settling tanks
- B01D21/245—Discharge mechanisms for the sediments
- B01D21/2472—Means for fluidising the sediments, e.g. by jets or mechanical agitators
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D21/00—Separation of suspended solid particles from liquids by sedimentation
- B01D21/26—Separation of sediment aided by centrifugal force or centripetal force
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D24/00—Filters comprising loose filtering material, i.e. filtering material without any binder between the individual particles or fibres thereof
- B01D24/02—Filters comprising loose filtering material, i.e. filtering material without any binder between the individual particles or fibres thereof with the filter bed stationary during the filtration
- B01D24/10—Filters comprising loose filtering material, i.e. filtering material without any binder between the individual particles or fibres thereof with the filter bed stationary during the filtration the filtering material being held in a closed container
- B01D24/16—Upward filtration
- B01D24/165—Upward filtration the filtering material being supported by pervious surfaces
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D24/00—Filters comprising loose filtering material, i.e. filtering material without any binder between the individual particles or fibres thereof
- B01D24/02—Filters comprising loose filtering material, i.e. filtering material without any binder between the individual particles or fibres thereof with the filter bed stationary during the filtration
- B01D24/20—Filters comprising loose filtering material, i.e. filtering material without any binder between the individual particles or fibres thereof with the filter bed stationary during the filtration the filtering material being provided in an open container
- B01D24/26—Upward filtration
- B01D24/263—Upward filtration the filtering material being supported by pervious surfaces
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D24/00—Filters comprising loose filtering material, i.e. filtering material without any binder between the individual particles or fibres thereof
- B01D24/38—Feed or discharge devices
- B01D24/40—Feed or discharge devices for feeding
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D24/00—Filters comprising loose filtering material, i.e. filtering material without any binder between the individual particles or fibres thereof
- B01D24/46—Regenerating the filtering material in the filter
- B01D24/4668—Regenerating the filtering material in the filter by moving the filtering element
- B01D24/4684—Regenerating the filtering material in the filter by moving the filtering element using spray devices
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/02—Aerobic processes
- C02F3/06—Aerobic processes using submerged filters
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/02—Aerobic processes
- C02F3/10—Packings; Fillings; Grids
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/30—Aerobic and anaerobic processes
- C02F3/308—Biological phosphorus removal
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D21/00—Separation of suspended solid particles from liquids by sedimentation
- B01D21/01—Separation of suspended solid particles from liquids by sedimentation using flocculating agents
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2201/00—Details relating to filtering apparatus
- B01D2201/14—Particulate filter materials with a lower density than the liquid mixture to be filtered
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W10/00—Technologies for wastewater treatment
- Y02W10/10—Biological treatment of water, waste water, or sewage
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP05153590A JP3123692B2 (ja) | 1993-06-24 | 1993-06-24 | 固液分離装置 |
JP08347294A JP3191559B2 (ja) | 1994-04-21 | 1994-04-21 | 固液分離装置 |
JP6083473A JP2976272B2 (ja) | 1994-04-21 | 1994-04-21 | 排水処理方法及びその装置 |
Publications (2)
Publication Number | Publication Date |
---|---|
DE69421211D1 true DE69421211D1 (de) | 1999-11-25 |
DE69421211T2 DE69421211T2 (de) | 2000-03-23 |
Family
ID=27304233
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE1994621211 Expired - Lifetime DE69421211T2 (de) | 1993-06-24 | 1994-06-23 | System zur Abwasserbehandlung |
DE1994629676 Expired - Lifetime DE69429676T2 (de) | 1993-06-24 | 1994-06-23 | Abwasserreinigungsanlage |
Family Applications After (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE1994629676 Expired - Lifetime DE69429676T2 (de) | 1993-06-24 | 1994-06-23 | Abwasserreinigungsanlage |
Country Status (3)
Country | Link |
---|---|
US (2) | US5558763A (de) |
EP (2) | EP0829456B1 (de) |
DE (2) | DE69421211T2 (de) |
Families Citing this family (42)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB9521695D0 (en) * | 1995-10-23 | 1996-01-03 | Anglian Water Services Ltd | Sewage treatment apparatus |
US6105593A (en) * | 1998-05-22 | 2000-08-22 | Jet, Inc. | Fixed film media cleaner apparatus and method |
US6177004B1 (en) | 1999-12-28 | 2001-01-23 | Dominic J. Bracone, Jr. | Septic system filter apparatus |
JP2001239112A (ja) * | 2000-03-01 | 2001-09-04 | Ebara Corp | 固液分離装置 |
US6447681B1 (en) | 2000-08-07 | 2002-09-10 | Kent Sea Tech Corporation | Aquaculture wastewater treatment system and method of making same |
FR2814454B1 (fr) * | 2000-09-27 | 2002-12-20 | Degremont | Procede d'epuration d'eaux residuaires en vue de l'elimination des pollutions azotees et phosphatees |
EP1369157B1 (de) * | 2001-03-13 | 2007-09-26 | Ngk Insulators, Ltd. | Filter zur filtration mit hohem durchsatz sowie zugehöriges filterverfahren |
EP1380330B1 (de) * | 2001-04-04 | 2008-06-04 | Ngk Insulators, Ltd. | Vorrichtung zur regenwasserbehandlung in mischwasserkanälen und zugehöriges verfahren für die rückspülung |
US6726838B2 (en) * | 2002-01-07 | 2004-04-27 | Agwise Wise Water Technologies Ltd. | Biofilm carrier, method of manufacture thereof and waste water treatment system employing biofilm carrier |
TW593172B (en) * | 2001-10-30 | 2004-06-21 | Ind Tech Res Inst | Floated biological treatment apparatus and process for purifying refractory wastewater or top water |
SE521571C2 (sv) * | 2002-02-07 | 2003-11-11 | Greenfish Ab | Integrerat slutet recirkulerande system för rening av spillvatten i vattenbruk. |
US6666965B1 (en) * | 2002-06-14 | 2003-12-23 | Cornell Research Foundation, Inc. | Cellular microbead filter for use in water recirculating system |
GB2396348B (en) * | 2002-12-17 | 2005-07-27 | Sev Trent Water Purification L | Waste-water treatment plant |
DE502004009269D1 (de) * | 2003-04-07 | 2009-05-14 | Wuerdig Uwe | Verfahren und vorrichtung zur behandlung fliessfähiger medien mit einem filterreaktor |
US20070221586A1 (en) * | 2005-06-27 | 2007-09-27 | Ruprecht John C | High pressure oil removing filter |
US20080041796A1 (en) * | 2005-06-27 | 2008-02-21 | Ruprecht John C | High back pressure filter for removing non-water component(s) from water |
AU2006222735B8 (en) * | 2005-10-06 | 2011-12-08 | Robert Hume Pannell | Multi-media clarifier or thickener |
GB0520900D0 (en) * | 2005-10-14 | 2005-11-23 | Brightwater Engineering Ltd | Method and system |
US20070210017A1 (en) * | 2006-03-08 | 2007-09-13 | Mackay Donald J | Filter system for filtering water or wastewater and a method of operating the filter system |
US8282818B1 (en) | 2008-05-27 | 2012-10-09 | Keith Dobie | Serpentine submerged attached growth reactor |
WO2009146247A1 (en) * | 2008-05-30 | 2009-12-03 | Beggs Robert A | Backwashing unsaturated wastewater filter |
US7914678B2 (en) * | 2008-05-30 | 2011-03-29 | Beggs Robert A | Backwashing unsaturated wastewater filter |
WO2010026564A1 (en) | 2008-09-03 | 2010-03-11 | Aqwise - Wise Water Technologies Ltd. | Integrated biological wastewater treatment and clarification |
PL2230211T3 (pl) | 2009-03-09 | 2014-01-31 | F Tec Systems Sa | Instalacja i sposób wstępnej obróbki nieoczyszczonej wody |
CN101585570B (zh) * | 2009-07-03 | 2010-12-29 | 西安建筑科技大学 | 高、低浊水一体式水质净化装置 |
US8505881B2 (en) | 2009-10-12 | 2013-08-13 | Enviromix, Llc | Mixing systems and methods of mixing |
US8758613B2 (en) * | 2009-10-16 | 2014-06-24 | Aqwise-Wise Water Technologies Ltd | Dynamic anaerobic aerobic (DANA) reactor |
US8323498B2 (en) | 2010-10-04 | 2012-12-04 | Enviromix, Llc | Systems and methods for automated control of mixing and aeration in treatment processes |
CN202822936U (zh) * | 2012-05-23 | 2013-03-27 | 瑞典诺迪克有限公司 | 过滤设备及用于向过滤设备供应流体的装置 |
US8734646B1 (en) * | 2013-07-11 | 2014-05-27 | Allen John Schuh | Bioremediation treatment for human sanitary waste |
CN105854367B (zh) * | 2016-05-13 | 2019-08-30 | 上海绩优机电股份有限公司 | 一种过滤系统和过滤方法 |
US20190100450A1 (en) | 2017-09-29 | 2019-04-04 | Theodore K. Jenkins | Systems and methods for treatment processes |
CN107902738B (zh) * | 2017-11-20 | 2020-03-06 | 广德樊缇卡信息咨询有限公司 | 一种污水净化絮凝装置 |
US10913667B2 (en) * | 2017-12-08 | 2021-02-09 | Westech Engineering, Inc. | Multi-media clarification systems and methods |
CN107998696B8 (zh) * | 2017-12-29 | 2020-07-31 | 江苏峰业科技环保集团股份有限公司 | 一种污水处理系统用沉淀装置 |
CN108609741B (zh) * | 2018-05-12 | 2023-11-10 | 农业部沼气科学研究所 | 一种浅层流动的生活污水处理装置 |
CN108751603B (zh) * | 2018-06-26 | 2021-01-01 | 谌莉莎 | 一种污水处理设备 |
CN110478978B (zh) * | 2019-09-12 | 2021-07-13 | 济南大学 | 一种圆形自排沙式重力沉沙过滤池 |
CN111362532B (zh) * | 2020-04-20 | 2022-03-25 | 青岛维堪环境科技有限公司 | 一种城市用污水处理设备及其控制系统 |
CN112915641B (zh) * | 2021-03-18 | 2022-06-14 | 上海威派格智慧水务股份有限公司 | 一种滤池反冲洗控制方法 |
CN113045132B (zh) * | 2021-03-24 | 2021-12-14 | 中国科学院生态环境研究中心 | 一种水生态修复装置及其修复方法 |
CN114149064B (zh) * | 2021-12-20 | 2022-09-06 | 江苏暨之阳环保科技有限公司 | 一种重金属超标污染区域的综合治理方法 |
Family Cites Families (24)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US714709A (en) * | 1902-07-28 | 1902-12-02 | Edward N Roth | Filtration apparatus for municipal or commercial uses. |
US1439406A (en) * | 1921-07-07 | 1922-12-19 | Henry E Elrod | Sewage-disposal plant and system |
US2196840A (en) * | 1935-10-11 | 1940-04-09 | Micajah T Singleton | Sewage treatment |
US2360769A (en) * | 1941-10-22 | 1944-10-17 | Gavett Weston | Process for biological treatment of sewage, trade wastes, and the like |
US2458163A (en) * | 1944-04-06 | 1949-01-04 | Clyde C Hays | Sewage treating process |
BE652833A (de) * | 1963-09-16 | |||
GB1275116A (en) * | 1969-10-08 | 1972-05-24 | Hydronyl Ltd | Improvements in or relating to biological filters |
DE2150760A1 (de) * | 1970-10-13 | 1972-04-20 | Mono Pumps Ltd | Verfahren und Vorrichtung zum Behandeln von Ablaufwasser |
JPS5185257A (en) * | 1975-01-22 | 1976-07-26 | Hitachi Ltd | Koekibunrihoho oyobi sonosochi |
US4446027A (en) * | 1980-03-20 | 1984-05-01 | Environmental Elements Corp. | Buoyant media filter |
DE3131989A1 (de) * | 1981-08-13 | 1983-02-24 | Linde Ag, 6200 Wiesbaden | Verfahren und vorrichtung zur biologischen reinigung von abwasser |
JPS60193508A (ja) * | 1984-03-16 | 1985-10-02 | Hitachi Plant Eng & Constr Co Ltd | 固液分離装置 |
US4650585A (en) * | 1984-04-17 | 1987-03-17 | Air Products And Chemicals, Inc. | Method for minimizing diurnal swing in phosphorus content of effluent streams from wastewater treating plants |
DE3723804A1 (de) * | 1987-07-18 | 1989-01-26 | Norddeutsche Seekabelwerke Ag | Fuellkoerper |
JPH01249113A (ja) * | 1988-03-30 | 1989-10-04 | Yokohamashi | 水平濾床型低圧損上向流濾過装置 |
JPH0697416B2 (ja) * | 1988-06-30 | 1994-11-30 | オ−クマ株式会社 | 自動プログラミング装置における画面表示方法 |
JPH0212405U (de) | 1988-07-05 | 1990-01-25 | ||
JPH0217908A (ja) * | 1988-07-05 | 1990-01-22 | Nishihara Environ Sanit Res Corp | 固液分離装置の洗浄方法 |
US5006251A (en) * | 1989-09-27 | 1991-04-09 | Director General, Public Works Research Institute, Ministry Of Construction | Process for treating organic waste water |
NL8902573A (nl) * | 1989-10-17 | 1991-05-16 | Ecotechniek Bv | Werkwijze en inrichting voor het verwerken van mest. |
GB9012703D0 (en) * | 1990-06-07 | 1990-08-01 | Anglian Water Services Ltd | Sewage treatment |
CA2096523A1 (en) * | 1990-11-21 | 1992-05-22 | Isamu Iwai | Sewage purifying device of filter material circulation type |
US5160435A (en) * | 1991-02-25 | 1992-11-03 | Albertson Orris E | Method and system for bio-mass management of a trickling filter |
JP3734227B2 (ja) * | 1991-10-18 | 2006-01-11 | 三井造船株式会社 | 上向流式高速濾過装置 |
-
1994
- 1994-06-21 US US08/263,200 patent/US5558763A/en not_active Expired - Lifetime
- 1994-06-23 EP EP19970118843 patent/EP0829456B1/de not_active Expired - Lifetime
- 1994-06-23 EP EP19940109753 patent/EP0630671B1/de not_active Expired - Lifetime
- 1994-06-23 DE DE1994621211 patent/DE69421211T2/de not_active Expired - Lifetime
- 1994-06-23 DE DE1994629676 patent/DE69429676T2/de not_active Expired - Lifetime
-
1995
- 1995-07-12 US US08/501,661 patent/US5578200A/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
EP0829456A2 (de) | 1998-03-18 |
DE69421211T2 (de) | 2000-03-23 |
DE69429676T2 (de) | 2002-08-14 |
DE69429676D1 (de) | 2002-02-21 |
EP0829456A3 (de) | 1998-08-05 |
US5578200A (en) | 1996-11-26 |
EP0630671B1 (de) | 1999-10-20 |
US5558763A (en) | 1996-09-24 |
EP0829456B1 (de) | 2002-01-16 |
EP0630671A3 (de) | 1995-08-16 |
EP0630671A2 (de) | 1994-12-28 |
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