LT3382B - A float aerator - Google Patents

A float aerator Download PDF

Info

Publication number: LT3382B
Authority: LT; Lithuania
Prior art keywords: float; hose; water; duct; aerator according
Prior art date: 1990-01-17

Application number

LTIP794A

Other languages

English (en)

Lithuanian (lt)

Inventor

Reinhart Vonnordenskjoeld

Original Assignee

Reinhart Vonnordenskjoeld

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.)

1990-01-17

Filing date

1993-07-15

Publication date

1995-08-25

1993-07-15 Application filed by Reinhart Vonnordenskjoeld filed Critical Reinhart Vonnordenskjoeld

1995-01-31 Publication of LTIP794A publication Critical patent/LTIP794A/xx

1995-08-25 Publication of LT3382B publication Critical patent/LT3382B/lt

Links

238000005276 aerator Methods 0.000 title claims abstract description 75
XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 60
238000007667 floating Methods 0.000 claims abstract description 15
239000010802 sludge Substances 0.000 claims abstract description 10
239000004033 plastic Substances 0.000 claims description 6
229920003023 plastic Polymers 0.000 claims description 6
230000005484 gravity Effects 0.000 claims description 3
238000007654 immersion Methods 0.000 claims description 2
239000012736 aqueous medium Substances 0.000 claims 2
239000006261 foam material Substances 0.000 claims 1
230000033001 locomotion Effects 0.000 description 30
230000008901 benefit Effects 0.000 description 10
238000009434 installation Methods 0.000 description 7
238000013461 design Methods 0.000 description 5
QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 4
230000006378 damage Effects 0.000 description 4
238000000034 method Methods 0.000 description 4
239000001301 oxygen Substances 0.000 description 4
229910052760 oxygen Inorganic materials 0.000 description 4
230000008569 process Effects 0.000 description 4
230000008439 repair process Effects 0.000 description 4
230000002441 reversible effect Effects 0.000 description 4
239000002351 wastewater Substances 0.000 description 4
238000005273 aeration Methods 0.000 description 3
230000000694 effects Effects 0.000 description 3
239000006260 foam Substances 0.000 description 3
238000004519 manufacturing process Methods 0.000 description 3
239000000203 mixture Substances 0.000 description 3
238000000465 moulding Methods 0.000 description 3
239000007787 solid Substances 0.000 description 3
241000894006 Bacteria Species 0.000 description 2
XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
239000004698 Polyethylene Substances 0.000 description 2
208000034699 Vitreous floaters Diseases 0.000 description 2
208000027418 Wounds and injury Diseases 0.000 description 2
238000004140 cleaning Methods 0.000 description 2
238000010276 construction Methods 0.000 description 2
238000009826 distribution Methods 0.000 description 2
239000007789 gas Substances 0.000 description 2
230000036541 health Effects 0.000 description 2
208000014674 injury Diseases 0.000 description 2
239000000463 material Substances 0.000 description 2
210000002445 nipple Anatomy 0.000 description 2
230000003534 oscillatory effect Effects 0.000 description 2
-1 polyethylene Polymers 0.000 description 2
229920000573 polyethylene Polymers 0.000 description 2
230000000630 rising effect Effects 0.000 description 2
238000012546 transfer Methods 0.000 description 2
230000001052 transient effect Effects 0.000 description 2
230000009471 action Effects 0.000 description 1
230000004913 activation Effects 0.000 description 1
238000005452 bending Methods 0.000 description 1
230000009286 beneficial effect Effects 0.000 description 1
239000000919 ceramic Substances 0.000 description 1
238000005352 clarification Methods 0.000 description 1
230000008878 coupling Effects 0.000 description 1
238000010168 coupling process Methods 0.000 description 1
238000005859 coupling reaction Methods 0.000 description 1
238000005336 cracking Methods 0.000 description 1
230000002950 deficient Effects 0.000 description 1
230000001419 dependent effect Effects 0.000 description 1
230000008021 deposition Effects 0.000 description 1
238000006073 displacement reaction Methods 0.000 description 1
238000005265 energy consumption Methods 0.000 description 1
231100001261 hazardous Toxicity 0.000 description 1
229910052742 iron Inorganic materials 0.000 description 1
238000005304 joining Methods 0.000 description 1
238000005259 measurement Methods 0.000 description 1
230000010355 oscillation Effects 0.000 description 1
239000002574 poison Substances 0.000 description 1
231100000614 poison Toxicity 0.000 description 1
230000008092 positive effect Effects 0.000 description 1
238000010926 purge Methods 0.000 description 1
239000011347 resin Substances 0.000 description 1
229920005989 resin Polymers 0.000 description 1
239000004065 semiconductor Substances 0.000 description 1
230000000087 stabilizing effect Effects 0.000 description 1
230000002459 sustained effect Effects 0.000 description 1
238000010408 sweeping Methods 0.000 description 1
238000012360 testing method Methods 0.000 description 1
230000007704 transition Effects 0.000 description 1
238000013022 venting Methods 0.000 description 1
238000004073 vulcanization Methods 0.000 description 1

Classifications

- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L1/00—Laying or reclaiming pipes; Repairing or joining pipes on or under water
- F16L1/12—Laying or reclaiming pipes on or under water
- F16L1/20—Accessories therefor, e.g. floats or weights
- F16L1/24—Floats; Weights
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F23/00—Mixing according to the phases to be mixed, e.g. dispersing or emulsifying
- B01F23/20—Mixing gases with liquids
- B01F23/23—Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids
- B01F23/231—Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids by bubbling
- B01F23/23105—Arrangement or manipulation of the gas bubbling devices
- B01F23/2311—Mounting the bubbling devices or the diffusers
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F23/00—Mixing according to the phases to be mixed, e.g. dispersing or emulsifying
- B01F23/20—Mixing gases with liquids
- B01F23/23—Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids
- B01F23/231—Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids by bubbling
- B01F23/23105—Arrangement or manipulation of the gas bubbling devices
- B01F23/2311—Mounting the bubbling devices or the diffusers
- B01F23/23114—Mounting the bubbling devices or the diffusers characterised by the way in which the different elements of the bubbling installation are mounted
- B01F23/231142—Mounting the gas transporting elements, i.e. connections between conduits
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F23/00—Mixing according to the phases to be mixed, e.g. dispersing or emulsifying
- B01F23/20—Mixing gases with liquids
- B01F23/23—Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids
- B01F23/231—Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids by bubbling
- B01F23/23105—Arrangement or manipulation of the gas bubbling devices
- B01F23/2311—Mounting the bubbling devices or the diffusers
- B01F23/23115—Mounting the bubbling devices or the diffusers characterised by the way in which the bubbling devices are mounted within the receptacle
- B01F23/231153—Mounting the bubbling devices or the diffusers characterised by the way in which the bubbling devices are mounted within the receptacle the bubbling devices being suspended on a supporting construction, i.e. not on a floating construction
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F23/00—Mixing according to the phases to be mixed, e.g. dispersing or emulsifying
- B01F23/20—Mixing gases with liquids
- B01F23/23—Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids
- B01F23/231—Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids by bubbling
- B01F23/23105—Arrangement or manipulation of the gas bubbling devices
- B01F23/2311—Mounting the bubbling devices or the diffusers
- B01F23/23115—Mounting the bubbling devices or the diffusers characterised by the way in which the bubbling devices are mounted within the receptacle
- B01F23/231155—Mounting the bubbling devices or the diffusers characterised by the way in which the bubbling devices are mounted within the receptacle the bubbling devices floating and having a pendulum movement, going to and from or moving in alternating directions
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F23/00—Mixing according to the phases to be mixed, e.g. dispersing or emulsifying
- B01F23/20—Mixing gases with liquids
- B01F23/23—Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids
- B01F23/231—Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids by bubbling
- B01F23/23105—Arrangement or manipulation of the gas bubbling devices
- B01F23/2312—Diffusers
- B01F23/23123—Diffusers consisting of rigid porous or perforated material
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F23/00—Mixing according to the phases to be mixed, e.g. dispersing or emulsifying
- B01F23/20—Mixing gases with liquids
- B01F23/23—Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids
- B01F23/231—Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids by bubbling
- B01F23/23105—Arrangement or manipulation of the gas bubbling devices
- B01F23/2312—Diffusers
- B01F23/23126—Diffusers characterised by the shape of the diffuser element
- B01F23/231265—Diffusers characterised by the shape of the diffuser element being tubes, tubular elements, cylindrical elements or set of tubes
- 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
- C02F3/12—Activated sludge processes
- C02F3/20—Activated sludge processes using diffusers
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F33/00—Other mixers; Mixing plants; Combinations of mixers
- B01F33/50—Movable or transportable mixing devices or plants
- B01F33/503—Floating mixing devices
- 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

Landscapes

Chemical & Material Sciences (AREA)
Chemical Kinetics & Catalysis (AREA)
Engineering & Computer Science (AREA)
Life Sciences & Earth Sciences (AREA)
General Engineering & Computer Science (AREA)
Water Supply & Treatment (AREA)
Biodiversity & Conservation Biology (AREA)
Microbiology (AREA)
Hydrology & Water Resources (AREA)
Environmental & Geological Engineering (AREA)
Mechanical Engineering (AREA)
Organic Chemistry (AREA)
Aeration Devices For Treatment Of Activated Polluted Sludge (AREA)
Catching Or Destruction (AREA)
Preparation Of Compounds By Using Micro-Organisms (AREA)
Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
Polysaccharides And Polysaccharide Derivatives (AREA)
Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Biological Treatment Of Waste Water (AREA)
Medicines Containing Material From Animals Or Micro-Organisms (AREA)
Polymers With Sulfur, Phosphorus Or Metals In The Main Chain (AREA)
Luminescent Compositions (AREA)

LTIP794A 1990-01-17 1993-07-15 A float aerator LT3382B (en)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
DE19904001201 DE4001201C1 (pl)	1990-01-17	1990-01-17

Publications (2)

Publication Number	Publication Date
LTIP794A LTIP794A (en)	1995-01-31
LT3382B true LT3382B (en)	1995-08-25

Family

ID=6398242

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
LTIP794A LT3382B (en)	1990-01-17	1993-07-15	A float aerator

Country Status (18)

Country	Link
US (1)	US5089179A (pl)
EP (1)	EP0437718B1 (pl)
CN (1)	CN1027884C (pl)
AT (1)	ATE93498T1 (pl)
AU (1)	AU630778B2 (pl)
CA (1)	CA2034086C (pl)
DE (2)	DE4001201C1 (pl)
DK (1)	DK0437718T3 (pl)
ES (1)	ES2044380T3 (pl)
FI (1)	FI101958B1 (pl)
LT (1)	LT3382B (pl)
LV (1)	LV10765B (pl)
MD (1)	MD242G2 (pl)
MX (1)	MX173292B (pl)
NZ (1)	NZ236771A (pl)
PL (1)	PL164365B1 (pl)
PT (1)	PT96491B (pl)
RU (1)	RU2047571C1 (pl)

Families Citing this family (20)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US5374353A (en) *	1993-01-21	1994-12-20	Murphy; D. Thomas	Aeration train and aeration apparatus for biological purification of wastewater
US5906774A (en) *	1997-05-20	1999-05-25	Parkson Corporation	Submerged diffuser lifting arrangement
US6086056A (en) *	1998-04-29	2000-07-11	Leask; Jim	Float sink header
US7267766B2 (en) *	2003-09-15	2007-09-11	Pro-Act Microbial, Inc.	Method and apparatus for aerating a surface layer in a stratified liquid body
RU2270174C2 (ru) *	2004-03-01	2006-02-20	Алексей Борисович Булгаков	Аэратор
DE102008021649A1 (de)	2008-04-30	2009-11-05	Bioworks Verfahrenstechnik Gmbh	Verfahren zum Durchmischen und/oder Belüften von Flüssigkeiten, insbesondere von Abwässern, insbesondere mit einem flutbaren Belüfter
DE102007033483A1 (de)	2007-07-18	2009-01-22	Bioworks Verfahrenstechnik Gmbh	Tauchbelüfter
US7934704B2 (en) *	2007-10-16	2011-05-03	Environmental Dynamics, Inc.	Retrievable diffuser module with internal ballast/buoyancy chamber
IL186838A (en) *	2007-10-22	2011-10-31	Mapal Green Energy Ltd	Aeration device
RU2432514C2 (ru) *	2009-02-05	2011-10-27	Закрытое акционерное общество "Новые технологии"	Способ балластировки подводного трубопровода
DE102009037760A1 (de)	2009-08-17	2011-04-21	Bioworks Verfahrenstechnik Gmbh	Kupplungselement zum Anschluss eines Belüftungskörpers einer Gewässer-Belüftungseinrichtung
MX2013009620A (es)	2011-02-25	2014-05-27	Algenol Biofuels Inc	Sistema magneticamente acoplado para mezclado.
CN102728192A (zh) *	2012-07-06	2012-10-17	安徽金森源环保工程有限公司	一种湿式脱硫氧化装置
RU2521130C1 (ru) *	2012-10-18	2014-06-27	Открытое акционерное общество "Рикор Электроникс"	Датчик уровня жидкости
CN103244779A (zh) *	2013-05-02	2013-08-14	江苏瑞盛水处理有限公司	空气分布器
CN105198070A (zh) *	2015-09-12	2015-12-30	长春黄金研究院	一种氰化尾矿渗滤液悬浮处理系统
WO2017091088A1 (en) *	2015-11-23	2017-06-01	The New Zealand Institute For Plant And Food Research Limited	Method and apparatus for releasing gas
US11090586B2 (en) *	2018-10-10	2021-08-17	Roberts Marketing De, Inc.	Devices and methods for moving, removing and/or installing one or more components of a treatment unit
KR102813676B1 (ko) *	2022-12-28	2025-05-28	(주)코아이	포터블 유회수기
PL445039A1 (pl) *	2023-05-29	2024-12-02	Andrzej Ścibiorek	Sposób i urządzenie do natleniania wody rzeki

Citations (2)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
DE2834899A1 (de)	1978-08-09	1980-02-14	Reinhart Von Dip Nordenskjoeld	Vorrichtung zur biologischen reinigung von abwasser
DE3227672A1 (de)	1982-07-23	1984-02-02	Reinhart von Dr.-Ing. 8011 Solalinden Nordenskjöld	Vorrichtung zum belueften von gewaessern oder abwaessern

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Publication number	Priority date	Publication date	Assignee	Title
US3033372A (en) *	1957-08-15	1962-05-08	Thomas M Riddick	Apparatus for circulating large bodies of liquid
DE7003018U (de) *	1969-03-06	1971-05-27	Uniroyal Inc	Seeschlauch.
US3758083A (en) *	1971-12-30	1973-09-11	W Palmer	Wave-powered aerator
US4215082A (en) *	1975-02-25	1980-07-29	Societe Anonyme dete: Alsthom-Atlantique	Device for injecting a gas into a liquid
FR2401300A1 (fr) *	1977-08-26	1979-03-23	Parrier Andre	Fenetre a vitrages multiples et a rideau de filtrage liquide
AT377962B (de) *	1978-08-09	1985-05-28	Nordenskjoeld Reinhart Von	Vorrichtung zur biologischen reinigung von abwasser
DE2836452C2 (de) *	1978-08-21	1984-11-15	Jürgen Ing.(grad.) 2055 Dassendorf Krampitz	Vorrichtung zum Begasen einer Flüssigkeit
US4287060A (en) *	1978-09-19	1981-09-01	Confinement Investors, Inc.	Aeration system for solid biological waste
US4308137A (en) *	1979-02-09	1981-12-29	Freeman Peter A	Water aeration and circulation apparatus
US4514343A (en) *	1982-09-29	1985-04-30	Air-O-Lator Corporation	Aspirating horizontal mixer
US4488508A (en) *	1983-06-10	1984-12-18	Heideman Robert C	Aeration/circulation method and apparatus utilizing low pressure air
DE3546091A1 (de) *	1985-12-24	1987-07-02	Kernforschungsz Karlsruhe	Querstrom-mikrofilter
DE8811738U1 (de) *	1987-09-19	1988-11-24	Phoenix Ag, 2100 Hamburg	Kühlwasserschlauch

1990
- 1990-01-17 DE DE19904001201 patent/DE4001201C1/de not_active Expired - Lifetime
- 1990-12-05 ES ES90123315T patent/ES2044380T3/es not_active Expired - Lifetime
- 1990-12-05 EP EP19900123315 patent/EP0437718B1/de not_active Expired - Lifetime
- 1990-12-05 DK DK90123315T patent/DK0437718T3/da active
- 1990-12-05 DE DE90123315T patent/DE59002478D1/de not_active Expired - Fee Related
- 1990-12-05 AT AT90123315T patent/ATE93498T1/de not_active IP Right Cessation
1991
- 1991-01-07 AU AU68668/91A patent/AU630778B2/en not_active Ceased
- 1991-01-09 US US07/639,028 patent/US5089179A/en not_active Expired - Lifetime
- 1991-01-11 CA CA 2034086 patent/CA2034086C/en not_active Expired - Fee Related
- 1991-01-14 FI FI910179A patent/FI101958B1/fi active
- 1991-01-15 NZ NZ236771A patent/NZ236771A/en unknown
- 1991-01-16 CN CN91100275A patent/CN1027884C/zh not_active Expired - Lifetime
- 1991-01-16 PT PT96491A patent/PT96491B/pt not_active IP Right Cessation
- 1991-01-16 RU SU4894448 patent/RU2047571C1/ru active
- 1991-01-17 MX MX2416891A patent/MX173292B/es unknown
- 1991-01-17 PL PL91288743A patent/PL164365B1/pl not_active IP Right Cessation
1993
- 1993-05-14 LV LVP-93-338A patent/LV10765B/lv unknown
- 1993-07-15 LT LTIP794A patent/LT3382B/lt not_active IP Right Cessation
1994
- 1994-12-29 MD MD95-0104A patent/MD242G2/ro unknown

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
DE2834899A1 (de)	1978-08-09	1980-02-14	Reinhart Von Dip Nordenskjoeld	Vorrichtung zur biologischen reinigung von abwasser
DE3227672A1 (de)	1982-07-23	1984-02-02	Reinhart von Dr.-Ing. 8011 Solalinden Nordenskjöld	Vorrichtung zum belueften von gewaessern oder abwaessern

Also Published As

Publication number	Publication date
PT96491B (pt)	1998-07-31
DK0437718T3 (da)	1993-11-08
CN1053415A (zh)	1991-07-31
PL288743A1 (en)	1992-01-13
PL164365B1 (pl)	1994-07-29
FI910179A0 (fi)	1991-01-14
MD242G2 (ro)	1995-12-31
LV10765B (en)	1996-04-20
US5089179A (en)	1992-02-18
FI910179L (fi)	1991-07-18
RU2047571C1 (ru)	1995-11-10
CA2034086C (en)	1996-11-26
PT96491A (pt)	1992-09-30
DE4001201C1 (pl)	1991-10-02
AU6866891A (en)	1991-07-18
AU630778B2 (en)	1992-11-05
LTIP794A (en)	1995-01-31
NZ236771A (en)	1992-08-26
CA2034086A1 (en)	1991-07-18
MD242F1 (ro)	1995-07-31
CN1027884C (zh)	1995-03-15
EP0437718B1 (de)	1993-08-25
FI101958B (fi)	1998-09-30
MX173292B (es)	1994-02-14
ES2044380T3 (es)	1994-01-01
DE59002478D1 (de)	1993-09-30
ATE93498T1 (de)	1993-09-15
EP0437718A1 (de)	1991-07-24
LV10765A (lv)	1995-08-20
FI101958B1 (fi)	1998-09-30

Legal Events

Date	Code	Title	Description
2002-03-25	MM9A	Lapsed patents	Effective date: 20010715

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RU2047571C1 (ru)	1995-11-10	Поплавковый аэратор
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US20030085166A1 (en)	2003-05-08	Containment/exclusion barrier system with infuser adaptation to water intake system
KR100220330B1 (ko)	1999-09-15	경사장치
US6554534B1 (en)	2003-04-29	Flexible structure and method for controlling the quality of liquids
CN101302061A (zh)	2008-11-12	用于将气体导入液体中的装置
CN110606571B (zh)	2020-11-03	一种河道污水治理方法
CA2831502A1 (en)	2007-05-03	Flexible aeration panel and methods of use
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