EP2374527B1 - Dispositif de gazage pour l'introduction intermittente d'un gaz dans un liquide - Google Patents

Dispositif de gazage pour l'introduction intermittente d'un gaz dans un liquide Download PDF

Info

Publication number
EP2374527B1
EP2374527B1 EP11002972.5A EP11002972A EP2374527B1 EP 2374527 B1 EP2374527 B1 EP 2374527B1 EP 11002972 A EP11002972 A EP 11002972A EP 2374527 B1 EP2374527 B1 EP 2374527B1
Authority
EP
European Patent Office
Prior art keywords
radius
membrane
basic contour
contour
crest
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.)
Active
Application number
EP11002972.5A
Other languages
German (de)
English (en)
Other versions
EP2374527A3 (fr
EP2374527A2 (fr
Inventor
Friederike OTT
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.)
Individual
Original Assignee
Individual
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
Application filed by Individual filed Critical Individual
Publication of EP2374527A2 publication Critical patent/EP2374527A2/fr
Publication of EP2374527A3 publication Critical patent/EP2374527A3/fr
Application granted granted Critical
Publication of EP2374527B1 publication Critical patent/EP2374527B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • 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
    • B01F23/23124—Diffusers consisting of flexible porous or perforated material, e.g. fabric
    • 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
    • B01F23/231231—Diffusers consisting of rigid porous or perforated material the outlets being in the form of perforations
    • 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

Definitions

  • the invention relates to a gassing device for the intermittent introduction of a gas into a liquid according to the preamble of patent claim 1.
  • a gassing device according to the preamble of claim 1 is already by the document EP 1 129 768 B1 known, from which the invention proceeds.
  • the known gassing device comprises a tubular introduction body with a lower axially extending groove for longitudinal distribution of the gas to be introduced.
  • the introduction body is surrounded by a membrane of elastic material which comprises perforated areas with perforation slots for introducing the gas into the liquid.
  • the membrane in the lower part, where the axial groove of the introduction body is located, the membrane has an area which is not perforated.
  • the purpose of the missing perforation in the region of the axial groove is to prevent an immediate exit of the gas supplied via the groove through the covering membrane in the groove area. Rather, an overpressure should build up, the membrane forming an annular space for a Recirculating gas distribution from the inlet body lifts and thereby allows access of the gas to the perforation slots and thus a discharge of the gas over a larger area.
  • fumigation facilities are used in wastewater treatment plants to introduce gases into wastewater.
  • the gassing is not operated continuously, but intermittently.
  • the reason for the intermittent gas introduction is the treatment concept in sewage treatment plants for certain types of wastewater.
  • the treatment concept is based on the fact that first of all the activity of bacteria, primarily aerobics, is used to breathe organic substances, d. h., To convert them into low-molecular compounds, ultimately in carbon dioxide, water, nitrates and sulfates.
  • Prerequisite for this in aerobic systems is adequate ventilation of the activated sludge in the wastewater. Then the ventilation is suspended and the biological wastewater treatment with anaerobes, d. H. Bacteria that live on the chemically bound oxygen and thus reduce reductively gain in importance.
  • the wrinkling is also supported by the fact that the membrane in comparison to the outer circumference of the introduction body has an oversize, so that the circumference of the membrane in the relaxed state is greater than the outer circumference of the introduction body. Due to the oversize of the membrane, the assembly of the gassing is to be facilitated because the membrane can then easily slide over the introduction body without resistance.
  • the membrane has because of the oversize so-called "excess material", which inevitably leads to wrinkling.
  • the wrinkling of the membrane is basically to be regarded as disadvantageous, because the fold of the material of the membrane is claimed to kink and it is an internal stress in the material of the membrane produced. As a result, the material becomes brittle at the location of the crease. This results after a longer period of operation after multiple switching on and off the gassing that the membrane ruptures or breaks at the location of the fold. The gassing unit is then no longer operational, and it is necessary to remove the gassing unit from the liquid and to replace the damaged membrane with a new membrane.
  • the operating life of the membrane is prolonged by reducing the tendency to crack by enforcing a controlled wrinkling in the region of the membrane which is free of perforation slits and therefore not already weakened.
  • in an axially extending groove opposite region means are provided, which force a fold of the membrane in this axially extending groove opposite region with shut off gas supply, which is free of perforation slots.
  • the invention has for its object to provide a gassing, the membrane remains virtually free of cracking tendency and embrittlement despite the intermittent operation, and their service life can thus be significantly extended over previously known solutions.
  • the convex elevation in conjunction with the subsequent concave transitions, results in the shortest enclosure of the introduction body being followed by tangents which span the concave transitions.
  • the unwound outer circumference following the contour of the introduction body is longer than the shortest covering.
  • An advantage of the invention is also that membranes can be used with greater tolerances of the inner circumference. Until now, only tightly tolerated membranes had to be used, which resulted in high reject rates during production. Membranes which lose elasticity due to aging can also be used, since a permanent elongation can be compensated for by a loss of elasticity in that a larger contact surface is provided for the installation of the membrane on the introduction body under the hydrostatic pressure.
  • the membrane remains completely free of wrinkles after switching off the gas supply, the membrane could be perforated in addition to the lateral areas in the assembled state, even in the upper region.
  • the membrane could be perforated in addition to the lateral areas in the assembled state, even in the upper region.
  • the under the hydrostatic pressure in the concave transitions depressed material is stretched and consequently the perforation slots Open there and let liquid penetrate into the annulus between the membrane and the introduction body. Since this effect is undesirable, the upper portion of the membrane, which encloses the convex elevation in conjunction with the subsequent concave transitions of the introduction body, remains unperforated. But this happens for other reasons than in the prior art.
  • the peak height of the convex elevation is between 0.19 and 0.23 of the radius of the base contour
  • the peak radius between 0.063 and 0.096 of the radius of the base contour and the concave transitions between the convex elevation and the surface of the base contour each have an inner radius of 0.476 of the radius of the basic contour.
  • the peak height is 7 mm, the apex radius 2 mm and the inner radius of the concave transitions 15 mm.
  • the membrane has an inner circumference of a minimum of 205 mm to a maximum of 206.08 mm.
  • the peak height is 6 mm, the apex radius 3 mm and the inner radius of the concave transitions 15 mm.
  • the membrane has an inner circumference of a minimum of 205 mm to a maximum of 206.08 mm.
  • transitions between the groove and the outer circular base contour are rounded and have a radius of 2 to 4 mm, preferably a radius of 3 mm.
  • the membrane may also partially submerge in the groove.
  • the rounded transitions here also avoids kinking of the membrane.
  • a gassing device 10 which consists of an introduction body 12 and a membrane 16 surrounding the introduction body 12.
  • the membrane 16 has lateral perforated areas 18, 20 with perforation slots 22 and further areas 24, 25 which are not perforated and have no perforation slots 22.
  • the lower region 25 covers an axially extending groove 14 in the introduction body 12.
  • This groove 14 serves for the longitudinal distribution of the gas to be introduced.
  • the reason for the lack of perforation in the lower region 25 is to prevent an immediate exit of the gas supplied via the groove 14 through the covering membrane 16 in the lower region of the groove 14. It's supposed to be one Overpressure build, which lifts the membrane 16 to form an annular space for a circulating gas distribution from the introduction body 12 and thereby allows access of the gas to all perforation slots 22, thus allowing a leakage of the gas over a larger area of the membrane 16.
  • a convex elevation 28 is provided on the upper side on the surface 26 of the introduction body 12. This convex elevation 28 does not abruptly merge into the surface 26 of the introduction body 12, but rather has concave transitions 30, 32 on both sides.
  • the outer periphery of the introduction body 12 is increased from the normal circular shape. The so-called unwound circumferential length of the diverging from the circular introduction body 12 is now greater or at least as large as the inner circumference of the membrane 16th
  • FIG Fig. 2 shows the gassing device 10 with switched off gas supply. Due to the hydrostatic pressure of the gas surrounding the device 10 and not shown here, the membrane 16 is pressed against the introduction body 12. In the lower region 25, the hydrostatic pressure is higher than in the upper region 24, so that the Application of the membrane 16 against the introduction body 12 initially begins in the lower region 25 and then propagates through the regions 18, 20 to the upper region 24.
  • the outer circumference of the introduction body 12 by the convex elevation 28 and taking into account the concave transitions 30, 32 is deliberately increased so far that the outer circumference or the unwound circumferential length of the introduction body 12 is greater than or at least as large as the inner circumference of the membrane 16 sets the membrane 16 completely without wrinkling in all areas of the introduction body 12 at.
  • the perforation slots 22 are closed.
  • Fig. 3 shows a first embodiment of the invention with concrete dimensions. These dimensions are within the ranges specified in claims 1 and 2 and represent proven optimizations in practice.
  • the radius 38 of the basic contour of the introduction body 12 is 31.5 mm. Starting from this basic contour, the crown height 34 is 7 mm, the peak radius 36 2 mm and the inner radius 40 of the concave transitions 30, 32 15 mm in the first embodiment. In both embodiments, the membrane 16 has an inner circumference of a minimum of 205 mm to a maximum of 206.08 mm.
  • Fig. 4 shows a second embodiment of the invention, in which the apex height 34 6 mm, the apex radius 36 3 mm and the inner radius 40 of the concave transitions 30, 32 15 mm.
  • the minimum inner circumference of the membrane is greater than a developed outer circumference of a through the surface 26 of the base contour with the convex elevation 28 and tangents 44, 46 between the convex elevation 28 and the surface 26 of the base contour instead of the concave transitions 30, 32nd
  • the peripheral difference between the tangents 44, 46 and the concave transitions 30, 32 forms the reserve for receiving the excess material of the membrane 16. This means at the same time that the membrane 16 may not be larger than the unwound outer circumference the surface 26 of the base contour including the concave transitions 30, 32, when wrinkling is to be avoided safely.
  • transitions between the groove 14 and the outer circular base contour may be rounded and have a radius between 2 and 4 mm, preferably a radius of 3 mm.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Separation Using Semi-Permeable Membranes (AREA)
  • Aeration Devices For Treatment Of Activated Polluted Sludge (AREA)

Claims (5)

  1. Dispositif de gazage (10) destiné à l'introduction intermittente d'un gaz dans un liquide, avec au moins un corps d'introduction tubulaire (12) présentant un contour de base circulaire extérieur (26), depuis lequel s'écartent une rainure, inférieure en état installé, qui s'étend dans le sens axial pour une répartition longitudinale du gaz à introduire et, diamétralement opposée à la rainure (14), une élévation convexe, supérieure en état installé, qui s'étend dans le sens axial, et avec une membrane (16) en un matériau élastique, membrane qui entoure une surface d'enveloppe du corps d'introduction (12) et comporte des zones perforées (18, 20) avec des fentes de perforation (22) destinées à l'introduction du gaz dans le liquide et deux zones, (24, 25), situées au-dessus de la rainure (14) et de l'élévation (28), qui ne sont pas perforées, caractérisé en ce qu'un sommet de l'élévation convexe (28) fait saillie depuis le contour de base circulaire extérieur (12), d'une hauteur de sommet (34) comprise entre 0,15 et 0,3 du rayon (38) de la surface (26) du contour de base, en ce qu'il présente un rayon de sommet (36) compris entre 0,03 et 0,1 du rayon (38) de la surface (26) du contour de base et en ce que des zones de transition concaves (30, 32) entre l'élévation (28) et la surface (26) du contour de base présentent respectivement un rayon intérieur (40) entre 0,4 et 0,6 du rayon (38) de la surface (26) du contour de base et qu'en état détendu, la membrane (16) présente une périphérie intérieure, dont la cote est plus petite qu'une périphérie extérieure développée d'un contour extérieur, formé par la surface (26) du contour de base avec l'élévation convexe (28) et les zones de transition concaves (30, 32), du corps d'introduction (12), mais plus grande qu'une périphérie extérieure développée d'un contour extérieur, formé par la surface (26) du contour de base avec l'élévation convexe (28) et des tangentes (44, 46) entre l'élévation convexe (28) et la surface (26) du contour de base au lieu des zones de transition concaves (30, 32), du corps d'introduction (12).
  2. Dispositif de gazage suivant la revendication 1, caractérisé en ce que la hauteur de sommet (34) de l'élévation convexe (28) est comprise entre 0,19 et 0,23 du rayon (38) du contour de base, en ce que le rayon de sommet (36) est compris entre 0,063 et 0,096 du rayon (38) du contour de base et en ce que les zones de transition concaves (30, 32) entre l'élévation convexe (28) et la surface (26) du contour de base présentent respectivement un rayon intérieur (40) de 0,476 du rayon (38) du contour de base.
  3. Dispositif de gazage suivant la revendication 1 ou 2, caractérisé en ce que selon une première forme de réalisation avec un rayon (38) du contour de base du corps d'introduction (12) de 31,5 mm, la hauteur de sommet (34) est de 7 mm, le rayon de sommet (36) est de 2 mm et le rayon intérieur (40) des zones de transition concaves (30, 32) est de 15 mm et en ce que la membrane (16) présente une périphérie intérieure de 205 mm au moins à 206,08 mm au plus.
  4. Dispositif de gazage suivant la revendication 1 ou 2, caractérisé en ce que selon une seconde forme de réalisation avec un rayon (38) du contour de base du corps d'introduction (12) de 31,5 mm, la hauteur de sommet (34) est de 6 mm, le rayon de sommet (36) est de 3 mm et le rayon intérieur (40) des zones de transition concaves (30, 32) est de 15 mm et en ce que la membrane (16) présente une périphérie intérieure de 205 mm au moins à 206,08 mm au plus.
  5. Dispositif de gazage suivant la revendication 1 ou 2, caractérisé en ce que des zones de transition entre la rainure (14) et le contour de base circulaire extérieur sont arrondies et présentent un rayon compris entre 2 et 4 mm, de préférence un rayon de 3 mm.
EP11002972.5A 2010-04-09 2011-04-08 Dispositif de gazage pour l'introduction intermittente d'un gaz dans un liquide Active EP2374527B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102010014345 2010-04-09

Publications (3)

Publication Number Publication Date
EP2374527A2 EP2374527A2 (fr) 2011-10-12
EP2374527A3 EP2374527A3 (fr) 2012-02-29
EP2374527B1 true EP2374527B1 (fr) 2013-06-26

Family

ID=44237151

Family Applications (1)

Application Number Title Priority Date Filing Date
EP11002972.5A Active EP2374527B1 (fr) 2010-04-09 2011-04-08 Dispositif de gazage pour l'introduction intermittente d'un gaz dans un liquide

Country Status (2)

Country Link
EP (1) EP2374527B1 (fr)
JP (1) JP5232198B2 (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102401027B1 (ko) * 2014-08-04 2022-05-20 클라우디우스 재거 폭기 엘리먼트를 위한 조립 브라켓 및 장착 시스템
CN105439281B (zh) * 2015-12-11 2018-08-21 航天凯天环保科技股份有限公司 移动床生物膜反应装置
WO2019060965A1 (fr) * 2017-09-29 2019-04-04 Aquatec Maxcon Pty Ltd Diffuseur pour l'aération d'un fluide
JP6689921B2 (ja) * 2018-07-25 2020-04-28 前澤化成工業株式会社 散気装置

Family Cites Families (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2701656C2 (de) * 1977-01-17 1979-02-08 Schreiber, August, Dr.-Ing., 3000 Hannover Einrichtung zur intermittierenden Belüftung von Abwasser
JPS60108398U (ja) * 1982-12-14 1985-07-23 大野　勝 水中に取付ける散気管
DE3319161C2 (de) * 1983-05-26 1987-04-16 Menzel GmbH & Co i.L., 7000 Stuttgart Begasungseinrichtung
DE3716806A1 (de) * 1987-05-19 1988-12-15 Juergen Zink Begasungseinrichtung
DE3819305A1 (de) * 1988-06-03 1989-12-07 Ott Rita Begasungseinrichtung
DE4223942A1 (de) * 1992-07-21 1994-01-27 Schmidt Holthausen Hans Joachi Schlauchbelüfter
DE4315699A1 (de) * 1993-05-11 1994-11-17 Schmidt Holthausen Hans Joachi Schlauchbelüfter
DE10008449C2 (de) * 2000-02-23 2003-02-13 Ott Gmbh Begasungseinrichtung
DE10011326A1 (de) * 2000-03-10 2001-09-13 Gummi Jaeger Kg Gmbh & Cie Vorrichtung zum Belüften von Wasser
JP2002263680A (ja) * 2001-03-13 2002-09-17 Mitsubishi Kakoki Kaisha Ltd 散気装置
JP2002273469A (ja) * 2001-03-21 2002-09-24 Sanyo Electric Co Ltd 散気装置及びそれを用いた水処理システム
DE10124264C5 (de) * 2001-05-18 2008-05-29 Rehau Ag + Co. Begasungsvorrichtung
DE20108400U1 (de) * 2001-05-18 2001-08-23 REHAU AG + Co., 95111 Rehau Begasungsvorrichtung
JP2005081203A (ja) * 2003-09-05 2005-03-31 Sumitomo Heavy Ind Ltd 散気装置及び散気システム
JP2007014842A (ja) * 2005-07-05 2007-01-25 Sumitomo Heavy Ind Ltd 散気ユニット、散気装置及び曝気設備
JP4781302B2 (ja) * 2007-03-14 2011-09-28 ダイセン・メンブレン・システムズ株式会社 散気方法及び水処理運転方法
JP5361332B2 (ja) * 2008-10-30 2013-12-04 株式会社クボタ メンブレン式散気装置
JP5349370B2 (ja) * 2010-03-04 2013-11-20 株式会社クボタ 散気管および散気装置

Also Published As

Publication number Publication date
JP2011218342A (ja) 2011-11-04
EP2374527A3 (fr) 2012-02-29
EP2374527A2 (fr) 2011-10-12
JP5232198B2 (ja) 2013-07-10

Similar Documents

Publication Publication Date Title
DE2513547C3 (de) Einrichtung zum intermittierenden Belüften von Abwasser
DE2701656C2 (de) Einrichtung zur intermittierenden Belüftung von Abwasser
EP2374527B1 (fr) Dispositif de gazage pour l'introduction intermittente d'un gaz dans un liquide
DE10254928A1 (de) Filtervorrichtung
EP2734288A1 (fr) Module à membrane pour pervaporation organophile
AT406154B (de) Belüftungseinrichtung
EP0363865A2 (fr) Dispositif d'aération
DE19520802A1 (de) Verfahren zum Einführen einer Schicht einer geordneten Packung und ringförmiges Mittel zur Randabdichtung einer mit einer geordneten Packung gefüllten Stoffaustauschkolonne
EP0704237B1 (fr) Dispositif pour l'introduction de gaz
EP1129768B1 (fr) Dispositif d'aération
EP0482332B1 (fr) Procédé pour injecter de l'air comprimé dans un liquide
EP1691116B1 (fr) Vanne à membrane
DE102020131994A1 (de) Druckausgleichselement
DE4223942A1 (de) Schlauchbelüfter
DE20012676U1 (de) Verbindung eines Lagerringes mit einem Trägerteil
EP2481474B1 (fr) Agencement d'étanchéité pour éléments de filtre céramique en forme de tiges
DE3249756C2 (de) Filterkerze
DE3141878C1 (de) "Dichtungsring für Badewannenablaufventile"
EP0714694B1 (fr) Tuyau pour l'aération de matériaux fluides
DE202021105807U1 (de) Reduzierstück, insbesondere zum abgedichteten Verbinden von zwei Rohren, und Anordnung
DE10124264C5 (de) Begasungsvorrichtung
EP0418652B1 (fr) Dispositif d'aération
EP0489231A1 (fr) Aérateur pour liquides
DE102018122967A1 (de) Dichtungsträger, Filtereinsatz und Filter
DE2718425A1 (de) Vorrichtung zur intermittierenden belueftung von abwasser in becken o.dgl. ueber einen unter der wasseroberflaeche angeordneten luftverteiler

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A2

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

AX Request for extension of the european patent

Extension state: BA ME

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

AK Designated contracting states

Kind code of ref document: A3

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

AX Request for extension of the european patent

Extension state: BA ME

RIC1 Information provided on ipc code assigned before grant

Ipc: B01F 3/04 20060101AFI20120126BHEP

17P Request for examination filed

Effective date: 20120718

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

REG Reference to a national code

Ref country code: GB

Ref legal event code: FG4D

Free format text: NOT ENGLISH

REG Reference to a national code

Ref country code: CH

Ref legal event code: EP

REG Reference to a national code

Ref country code: AT

Ref legal event code: REF

Ref document number: 618443

Country of ref document: AT

Kind code of ref document: T

Effective date: 20130715

REG Reference to a national code

Ref country code: IE

Ref legal event code: FG4D

Free format text: LANGUAGE OF EP DOCUMENT: GERMAN

REG Reference to a national code

Ref country code: DE

Ref legal event code: R096

Ref document number: 502011000935

Country of ref document: DE

Effective date: 20130814

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20130626

Ref country code: FI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20130626

Ref country code: NO

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20130926

Ref country code: SE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20130626

Ref country code: GR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20130927

Ref country code: SI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20130626

REG Reference to a national code

Ref country code: LT

Ref legal event code: MG4D

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: HR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20130626

Ref country code: RS

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20130626

Ref country code: BG

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20130926

REG Reference to a national code

Ref country code: NL

Ref legal event code: VDEP

Effective date: 20130626

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LV

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20130626

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: EE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20130626

Ref country code: SK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20130626

Ref country code: IS

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20131026

Ref country code: PT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20131028

Ref country code: CY

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20130619

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: RO

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20130626

Ref country code: PL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20130626

Ref country code: NL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20130626

Ref country code: ES

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20131007

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: CY

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20130626

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20130626

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20130626

26N No opposition filed

Effective date: 20140327

REG Reference to a national code

Ref country code: DE

Ref legal event code: R097

Ref document number: 502011000935

Country of ref document: DE

Effective date: 20140327

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: MC

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20130626

Ref country code: LU

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20140408

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

REG Reference to a national code

Ref country code: IE

Ref legal event code: MM4A

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LI

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20140430

Ref country code: CH

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20140430

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20140408

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 20150408

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20150408

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: MT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20130626

REG Reference to a national code

Ref country code: FR

Ref legal event code: PLFP

Year of fee payment: 6

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SM

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20130626

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: BE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20140430

Ref country code: HU

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT; INVALID AB INITIO

Effective date: 20110408

REG Reference to a national code

Ref country code: FR

Ref legal event code: PLFP

Year of fee payment: 7

REG Reference to a national code

Ref country code: AT

Ref legal event code: MM01

Ref document number: 618443

Country of ref document: AT

Kind code of ref document: T

Effective date: 20160408

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: AT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20160408

REG Reference to a national code

Ref country code: FR

Ref legal event code: PLFP

Year of fee payment: 8

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: MK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20130626

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: AL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20130626

REG Reference to a national code

Ref country code: DE

Ref legal event code: R079

Ref document number: 502011000935

Country of ref document: DE

Free format text: PREVIOUS MAIN CLASS: B01F0003040000

Ipc: B01F0023200000

REG Reference to a national code

Ref country code: DE

Ref legal event code: R081

Ref document number: 502011000935

Country of ref document: DE

Owner name: OTT GROUP GMBH, DE

Free format text: FORMER OWNER: OTT, FRIEDERIKE, 30855 LANGENHAGEN, DE

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: CZ

Payment date: 20250326

Year of fee payment: 15

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: TR

Payment date: 20250328

Year of fee payment: 15

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 20250422

Year of fee payment: 15

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 20250422

Year of fee payment: 15