EP0225526A2 - Appareil pour traiter un liquid avec des gaz ou pour mélanger des liquides - Google Patents

Appareil pour traiter un liquid avec des gaz ou pour mélanger des liquides Download PDF

Info

Publication number
EP0225526A2
EP0225526A2 EP86116151A EP86116151A EP0225526A2 EP 0225526 A2 EP0225526 A2 EP 0225526A2 EP 86116151 A EP86116151 A EP 86116151A EP 86116151 A EP86116151 A EP 86116151A EP 0225526 A2 EP0225526 A2 EP 0225526A2
Authority
EP
European Patent Office
Prior art keywords
distributor
gas
liquid
chamber
membrane
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.)
Granted
Application number
EP86116151A
Other languages
German (de)
English (en)
Other versions
EP0225526B1 (fr
EP0225526A3 (en
Inventor
Bruno Gruber
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.)
ABS International SA
Original Assignee
ABS International SA
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from DE3543022A external-priority patent/DE3543022C1/de
Priority claimed from DE3608970A external-priority patent/DE3608970C1/de
Application filed by ABS International SA filed Critical ABS International SA
Priority to AT86116151T priority Critical patent/ATE85903T1/de
Publication of EP0225526A2 publication Critical patent/EP0225526A2/fr
Publication of EP0225526A3 publication Critical patent/EP0225526A3/de
Application granted granted Critical
Publication of EP0225526B1 publication Critical patent/EP0225526B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01FMIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F23/00Mixing according to the phases to be mixed, e.g. dispersing or emulsifying
    • B01F23/20Mixing gases with liquids
    • B01F23/23Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids
    • B01F23/238Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids using vibrations, electrical or magnetic energy, radiations
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01FMIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F23/00Mixing according to the phases to be mixed, e.g. dispersing or emulsifying
    • B01F23/20Mixing gases with liquids
    • B01F23/23Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids
    • B01F23/231Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids by bubbling
    • B01F23/23105Arrangement or manipulation of the gas bubbling devices
    • B01F23/2312Diffusers
    • B01F23/23121Diffusers having injection means, e.g. nozzles with circumferential outlet
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01FMIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F33/00Other mixers; Mixing plants; Combinations of mixers
    • B01F33/40Mixers using gas or liquid agitation, e.g. with air supply tubes
    • B01F33/409Parts, e.g. diffusion elements; Accessories
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01FMIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F35/00Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
    • B01F35/71Feed mechanisms
    • B01F35/717Feed mechanisms characterised by the means for feeding the components to the mixer
    • B01F35/71755Feed mechanisms characterised by the means for feeding the components to the mixer using means for feeding components in a pulsating or intermittent manner
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01FMIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F23/00Mixing according to the phases to be mixed, e.g. dispersing or emulsifying
    • B01F23/20Mixing gases with liquids
    • B01F23/23Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids
    • B01F23/231Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids by bubbling
    • B01F23/23105Arrangement or manipulation of the gas bubbling devices
    • B01F23/2312Diffusers
    • B01F23/23126Diffusers characterised by the shape of the diffuser element
    • B01F23/231264Diffusers characterised by the shape of the diffuser element being in the form of plates, flat beams, flat membranes or films

Definitions

  • the invention relates to a device for gassing or mixing liquids with a distributor and a vibration device.
  • a gas outlet which is arranged movably and is connected to a vibration device located on the side.
  • the vibration device enables an oscillation movement in the lateral direction, that is to say parallel to the plane of the gas outlet openings which are formed in the porous surface area of the gas outlet.
  • the oscillating movement of the gas outflow in the lateral direction exploits shear forces which act on the gas bubbles emerging from the gas outlet openings and tear the latter away from the gas outflow.
  • a device of this type can be used to generate fine gas bubbles in a liquid.
  • the considerable expenditure of force of the vibration device that is required to move the gas outflow is disadvantageous.
  • a device for generating gas bubbles is also known from DE-PS 30 39 969 in which a gas outlet which has fine openings in a surface area, is immersed in a liquid and automatically vibrates with a continuous supply of gas and thereby generates fine gas bubbles in a pulsating manner .
  • the disadvantage here is that a uniform, continuous gas bubble delivery is not possible.
  • Numerous devices are also known for mixing liquids with one another. With these known Devices are the introduction of liquid into another liquid by means of mechanical swirling. In order to produce mixtures or emulsions with the known possibilities, a large amount of kinetic energy is consumed. It is also often undesirable to increase the temperature due to the friction that occurs.
  • the invention has for its object to develop a device that allows large amounts of gas or liquid in finely divided form to enter a liquid with little energy without having to be brought into turbulent movement and thereby heating up in an undesirable manner.
  • a distributor consisting of a perforated membrane is attached to a chamber, this chamber is supplied with a continuous gas or liquid supply and a vibrating device allows the gas or liquid in the chamber to pulsate so that the distributor releases fine gas or liquid bubbles into a surrounding liquid synchronously with the vibration frequency.
  • the oscillating compression of the gas or the liquid takes place through a membrane which, for example, represents the bottom of the chamber and is made to vibrate with the vibration device.
  • the membrane can also be perforated and itself represent the outflow, the outflow being connected directly to the vibration device and advantageously being arranged in the upper or side region of the chamber.
  • the vibrating device can also act on a membrane attached in the bottom area of the chamber, which is rigidly connected with a linkage to the outflow attached in the upper area of the chamber.
  • the outflow or the membrane are electromagnetic, for example, by the vibration device can be driven vibrator in the vertical direction to the plane of the gas or liquid outlet openings vibrated.
  • the outflow is expediently installed in a chamber with an upper opening and the distributor is fastened to the peripheral edge of the can opening, the gas or liquid supply line opening into the chamber.
  • the distributor is therefore part of a chamber and in any geometrical shape.
  • the distributor advantageously consists of a membrane with a large number of small openings.
  • the distributor can also consist of a rigid perforated plate which is, for example, elastically fastened at its edges.
  • the vibration device is now rigidly connected to the distributor in a manner known per se so that it is set in vibration.
  • the number and size of the emerging gas or liquid bubbles can be set in a wide range with the amount of liquid or gas supply, the number and size of the bores of the distributor, the frequency and amplitude of the vibrations of the vibration generator.
  • the fine bubbles emerge from the distributor whenever the vibrator exerts pressure on the distributor or the membrane and the gas or liquid overpressure on the distributor thus increases.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Toxicology (AREA)
  • Physical Or Chemical Processes And Apparatus (AREA)
  • Mixers With Rotating Receptacles And Mixers With Vibration Mechanisms (AREA)
EP86116151A 1985-12-05 1986-11-21 Appareil pour traiter un liquid avec des gaz ou pour mélanger des liquides Expired - Lifetime EP0225526B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT86116151T ATE85903T1 (de) 1985-12-05 1986-11-21 Vorrichtung zur begasung von fluessigkeiten oder zur mischung von fluessigkeiten.

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE3543022 1985-12-05
DE3543022A DE3543022C1 (en) 1985-12-05 1985-12-05 Appliance for mixing gas into a liquid
DE3608970A DE3608970C1 (en) 1986-03-18 1986-03-18 Apparatus for mixing liquids
DE3608970 1986-03-18

Publications (3)

Publication Number Publication Date
EP0225526A2 true EP0225526A2 (fr) 1987-06-16
EP0225526A3 EP0225526A3 (en) 1988-09-07
EP0225526B1 EP0225526B1 (fr) 1993-02-24

Family

ID=25838546

Family Applications (1)

Application Number Title Priority Date Filing Date
EP86116151A Expired - Lifetime EP0225526B1 (fr) 1985-12-05 1986-11-21 Appareil pour traiter un liquid avec des gaz ou pour mélanger des liquides

Country Status (4)

Country Link
US (1) US4793714A (fr)
EP (1) EP0225526B1 (fr)
AT (1) ATE85903T1 (fr)
DE (1) DE3687824D1 (fr)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0376008A1 (fr) * 1988-12-10 1990-07-04 Linde Aktiengesellschaft Système d'introduction de gaz
AU600426B2 (en) * 1987-10-16 1990-08-09 Borsig Gmbh Activated sludge device having movable perforated plates and a nozzle for the destruction of foam
FR2698797A1 (fr) * 1992-12-07 1994-06-10 Envicon Klaertech Verwalt Dispositif d'aération.
FR2699091A1 (fr) * 1992-12-10 1994-06-17 Thomson Csf Procédé de production de particules d'un premier fluide dans un deuxième fluide, les fluides étant non miscibles entre eux, et dispositif pour sa mise en Óoeuvre.
WO2009122394A3 (fr) * 2008-03-31 2009-12-03 Technion - Research & Development Foundation Ltd Système sonique et procédé de fabrication de mélanges liquide-gaz
FR2935373A1 (fr) * 2008-09-04 2010-03-05 Lm Environment Dispositif de diffusion des boues pour digesteur a lit de boue

Families Citing this family (30)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5090352A (en) * 1987-02-24 1992-02-25 Corwin R. Horton Bow foil
US5117882A (en) * 1987-02-24 1992-06-02 Corwin R. Horton Microbubble-generating and dispensing devices and methods
US5078504A (en) * 1989-02-06 1992-01-07 Spectrum Sciences B.V. Dispersion apparatus
CA2104565A1 (fr) * 1993-08-20 1995-02-21 Richard D. Vanderploeg Capsule de bouteille
JP3396319B2 (ja) * 1993-12-28 2003-04-14 浜松ホトニクス株式会社 液体処理方法および液体処理装置
JP3367038B2 (ja) * 1997-04-21 2003-01-14 株式会社 本家松浦酒造場 アルコール溶液のアルコール分離装置
DE19731099C1 (de) * 1997-07-19 1999-04-01 Henkel Kgaa Vorrichtung zur Einleitung von Schallwellen in Reaktoren
US6039309A (en) * 1997-12-05 2000-03-21 The United States Of America As Represented By The Secretary Of The Navy Method and apparatus for producing gas bubbles in a liquid medium
WO1999049959A1 (fr) * 1998-03-30 1999-10-07 Pavel Nikolaevich Kadushin Procede de production de mousse et dispositif de mise en oeuvre de ce procede
US6398195B1 (en) * 1998-04-10 2002-06-04 Grt, Inc. Method of and apparatus for producing sub-micron bubbles in liquids and slurries
US6270249B1 (en) 1998-09-30 2001-08-07 Robert W. Besuner Vertically reciprocating perforated agitator
IL129208A0 (en) * 1999-03-28 2000-02-17 Liposol Ltd A method and apparatus for nebulizing a liquid particulary useful for the aerosol delivery of biopharmaceuticals
DE10011022A1 (de) * 2000-03-07 2001-09-27 Meinhard Knoll Vorrichtung und Verfahren zur Durchführung von Synthesen, Analysen oder Transportvorgängen
EP1362634B1 (fr) * 2001-02-23 2006-05-31 Japan Science and Technology Agency Procede de preparation d'emulsion et appareil a cet effet
US6939032B2 (en) * 2001-10-25 2005-09-06 Erie Scientific Company Cover slip mixing apparatus
US20040257907A1 (en) * 2003-06-19 2004-12-23 Agency For Science, Technology And Research Method and apparatus for mixing fluids
US7367550B2 (en) * 2003-11-18 2008-05-06 Massachusetts Institute Of Technology Peristaltic mixing and oxygenation system
US20050122836A1 (en) * 2003-12-05 2005-06-09 Maytag Corporation Stand mixer with control panel
US20060060991A1 (en) * 2004-09-21 2006-03-23 Interuniversitair Microelektronica Centrum (Imec) Method and apparatus for controlled transient cavitation
GB2443396B (en) * 2006-10-30 2011-10-19 Univ Sheffield Bubble generation for aeration and other purposes
US10377651B2 (en) * 2006-10-30 2019-08-13 Perlemax Ltd Bubble generation for aeration and other purposes
GB2479528A (en) * 2010-04-08 2011-10-19 Advanced Fuel Technologies Uk Ltd A device for diffusing gas into a liquid
FR2969506B1 (fr) * 2010-12-22 2013-02-15 Sartorius Stedim Biotech Sa Melange du contenu d'un conteneur flexible a usage biopharmaceutique.
EP2906679A1 (fr) 2012-10-15 2015-08-19 Perlemax Ltd Génération de bulles pour éliminer des constituants d'un liquide
US9403135B2 (en) * 2014-03-18 2016-08-02 Sartorius Stedim North America Inc. Mixing container and mixing system
US9643140B2 (en) 2014-05-22 2017-05-09 MikroFlot Technologies LLC Low energy microbubble generation system and apparatus
WO2016163415A1 (fr) * 2015-04-08 2016-10-13 SonoCore株式会社 Procédé de production de bulles
JP6605229B2 (ja) * 2015-05-11 2019-11-13 国立大学法人群馬大学 気体の微細化装置
WO2017000253A1 (fr) * 2015-06-30 2017-01-05 Kechuang Lin Appareil et système de génération de bulles
WO2022178141A1 (fr) * 2021-02-18 2022-08-25 Moleaer, Inc. Générateur de nano-bulles

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB497741A (en) * 1936-07-03 1938-12-28 Ig Farbenindustrie Ag Method for introducing gases into liquids
US3264213A (en) * 1964-10-27 1966-08-02 Pav Jarmil Method and apparatus for continuous biological degradation of metabolisable substances
DE1917962A1 (de) * 1969-04-09 1971-02-25 Maschf Augsburg Nuernberg Ag Schalldruckpumpen
DE2514197A1 (de) * 1975-04-01 1976-10-14 Linde Ag Vorrichtung zur begasung von fluessigkeiten
DE3039969A1 (de) * 1980-10-23 1982-04-22 Bruno 8039 Puchheim Gruber Vorrichtung zur erzeugung von gasblasen oder schaum

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2124983A (en) * 1937-08-30 1938-07-26 Martin Joseph Agitator
US2420691A (en) * 1945-05-05 1947-05-20 Vang Alfred Evaporator
US2856273A (en) * 1953-12-28 1958-10-14 Pure Oil Co Apparatus for low velocity fluidization
US3097828A (en) * 1958-04-30 1963-07-16 Grun Gustav Method and apparatus for mixing pulverulent or fine-grain material
US4353668A (en) * 1980-04-29 1982-10-12 North American Car Corporation Hopper bottom unit

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB497741A (en) * 1936-07-03 1938-12-28 Ig Farbenindustrie Ag Method for introducing gases into liquids
US3264213A (en) * 1964-10-27 1966-08-02 Pav Jarmil Method and apparatus for continuous biological degradation of metabolisable substances
DE1917962A1 (de) * 1969-04-09 1971-02-25 Maschf Augsburg Nuernberg Ag Schalldruckpumpen
DE2514197A1 (de) * 1975-04-01 1976-10-14 Linde Ag Vorrichtung zur begasung von fluessigkeiten
DE3039969A1 (de) * 1980-10-23 1982-04-22 Bruno 8039 Puchheim Gruber Vorrichtung zur erzeugung von gasblasen oder schaum

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU600426B2 (en) * 1987-10-16 1990-08-09 Borsig Gmbh Activated sludge device having movable perforated plates and a nozzle for the destruction of foam
EP0376008A1 (fr) * 1988-12-10 1990-07-04 Linde Aktiengesellschaft Système d'introduction de gaz
FR2698797A1 (fr) * 1992-12-07 1994-06-10 Envicon Klaertech Verwalt Dispositif d'aération.
FR2699091A1 (fr) * 1992-12-10 1994-06-17 Thomson Csf Procédé de production de particules d'un premier fluide dans un deuxième fluide, les fluides étant non miscibles entre eux, et dispositif pour sa mise en Óoeuvre.
WO1994013394A1 (fr) * 1992-12-10 1994-06-23 Thomson-Csf Procede de production de particules d'un premier fluide dans un deuxieme fluide, les fluides etant non miscibles entre eux, et dispositif pour sa mise en ×uvre
WO2009122394A3 (fr) * 2008-03-31 2009-12-03 Technion - Research & Development Foundation Ltd Système sonique et procédé de fabrication de mélanges liquide-gaz
FR2935373A1 (fr) * 2008-09-04 2010-03-05 Lm Environment Dispositif de diffusion des boues pour digesteur a lit de boue
WO2010026314A1 (fr) * 2008-09-04 2010-03-11 Lm Environment Dispositif de diffusion des boues pour digesteur à lit de boue

Also Published As

Publication number Publication date
EP0225526B1 (fr) 1993-02-24
EP0225526A3 (en) 1988-09-07
US4793714A (en) 1988-12-27
ATE85903T1 (de) 1993-03-15
DE3687824D1 (de) 1993-04-01

Similar Documents

Publication Publication Date Title
EP0225526A2 (fr) Appareil pour traiter un liquid avec des gaz ou pour mélanger des liquides
DE970926C (de) Vorrichtung zum Mischen, Ruehren usw. von Fluessigkeiten
EP2024072B1 (fr) Mélangeur vibratoire
DE3543022C1 (en) Appliance for mixing gas into a liquid
DE1457313B2 (de) Vorrichtung zur homogenisierung eines gemisches aus einer fluessigkeit und wenigstens einem anderen stoff durch ultra schallschwingungen
DE2429211A1 (de) Vibrationssiebvorrichtung
DE3628012C2 (fr)
EP0176014B1 (fr) Procédé et dispositif pour mélanger un échantillon d'un liquide à analyser
DE3039969C2 (de) Vorrichtung zur Erzeugung von Gasblasen oder Schaum
EP0252172B1 (fr) Procédé d'électrolyse
DE3600234A1 (de) Vorrichtung zum belueften von wasser
DE2514197A1 (de) Vorrichtung zur begasung von fluessigkeiten
DE3608970C1 (en) Apparatus for mixing liquids
DE3803981C2 (fr)
DE2621336A1 (de) Tintenstrahldruckkopf
DE2443309A1 (de) Austragvorrichtung fuer behaelter
DE7504145U (de) Vorrichtung zum Schwingmischen in Flüssigkeiten
DE10204923C1 (de) Sonotroden-Dispergier-Vorrichtung
DE1003147B (de) Einrichtung zum Zerstaeuben von Fluessigkeiten
CH560066A5 (en) Disc type vibratory agitator - having conical rim and counter sunk conical holes
DE2557958B2 (de) Piezoelektrischer Ultraschall-Flüssigkeitszerstäuber
DE4304260A1 (de) Vorrichtung zum Herstellen einer Emulsion
DE2510809A1 (de) Dosiergeraet
DE102008062198A1 (de) Flotation
DE4041929C2 (fr)

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): AT BE CH DE FR GB IT LI NL SE

RAP1 Party data changed (applicant data changed or rights of an application transferred)

Owner name: ABS PUMPEN AG

RIN1 Information on inventor provided before grant (corrected)
RIN1 Information on inventor provided before grant (corrected)

Inventor name: GRUBER, BRUNO

RIN1 Information on inventor provided before grant (corrected)

Inventor name: GRUBER, BRUNO

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

AK Designated contracting states

Kind code of ref document: A3

Designated state(s): AT BE CH DE FR GB IT LI NL SE

17P Request for examination filed

Effective date: 19880810

17Q First examination report despatched

Effective date: 19900406

RTI1 Title (correction)
RAP1 Party data changed (applicant data changed or rights of an application transferred)

Owner name: ABS INTERNATIONAL S.A.

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AT BE CH DE FR GB IT LI NL SE

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

Ref country code: NL

Effective date: 19930224

Ref country code: FR

Effective date: 19930224

Ref country code: GB

Effective date: 19930224

Ref country code: BE

Effective date: 19930224

Ref country code: SE

Effective date: 19930224

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 PRE;WARNING: LAPSES OF ITALIAN PATENTS WITH EFFECTIVE DATE BEFORE 2007 MAY HAVE OCCURRED AT ANY TIME BEFORE 2007. THE CORRECT EFFECTIVE DATE MAY BE DIFFERENT FROM THE ONE RECORDED.SCRIBED TIME-LIMIT

Effective date: 19930224

REF Corresponds to:

Ref document number: 85903

Country of ref document: AT

Date of ref document: 19930315

Kind code of ref document: T

REF Corresponds to:

Ref document number: 3687824

Country of ref document: DE

Date of ref document: 19930401

EN Fr: translation not filed
NLV1 Nl: lapsed or annulled due to failure to fulfill the requirements of art. 29p and 29m of the patents act
GBV Gb: ep patent (uk) treated as always having been void in accordance with gb section 77(7)/1977 [no translation filed]

Effective date: 19930224

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

Ref country code: AT

Effective date: 19931121

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

Ref country code: CH

Effective date: 19931130

Ref country code: LI

Effective date: 19931130

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

26N No opposition filed
REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

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

Ref country code: DE

Effective date: 19940802