EP0669465A3 - Lageranordnung für eine Pumpenwelle einer Pumpe für das Fördern von Medien mit unterschiedlicher Viskosität. - Google Patents

Lageranordnung für eine Pumpenwelle einer Pumpe für das Fördern von Medien mit unterschiedlicher Viskosität. Download PDF

Info

Publication number
EP0669465A3
EP0669465A3 EP95107891A EP95107891A EP0669465A3 EP 0669465 A3 EP0669465 A3 EP 0669465A3 EP 95107891 A EP95107891 A EP 95107891A EP 95107891 A EP95107891 A EP 95107891A EP 0669465 A3 EP0669465 A3 EP 0669465A3
Authority
EP
European Patent Office
Prior art keywords
pump
bearing
zone
fluid pump
viscous fluid
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
EP95107891A
Other languages
English (en)
French (fr)
Other versions
EP0669465B1 (de
EP0669465A2 (de
Inventor
Peter Dipl Ing Blume
Roger Dr Ing Stehr
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.)
Maag Pump Systems AG
Original Assignee
Maag Pump Systems AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority to ES95107891T priority Critical patent/ES2110799T3/es
Priority to EP95107891A priority patent/EP0669465B1/de
Priority to DE59501083T priority patent/DE59501083D1/de
Priority to AT95107891T priority patent/ATE161075T1/de
Application filed by Maag Pump Systems AG filed Critical Maag Pump Systems AG
Publication of EP0669465A2 publication Critical patent/EP0669465A2/de
Publication of EP0669465A3 publication Critical patent/EP0669465A3/de
Priority to JP8535234A priority patent/JPH11505910A/ja
Priority to AU53304/96A priority patent/AU5330496A/en
Priority to US08/952,649 priority patent/US6123531A/en
Priority to PCT/CH1996/000164 priority patent/WO1996037705A1/de
Application granted granted Critical
Publication of EP0669465B1 publication Critical patent/EP0669465B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04CROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C15/00Component parts, details or accessories of machines, pumps or pumping installations, not provided for in groups F04C2/00 - F04C14/00
    • F04C15/0003Sealing arrangements in rotary-piston machines or pumps
    • F04C15/0034Sealing arrangements in rotary-piston machines or pumps for other than the working fluid, i.e. the sealing arrangements are not between working chambers of the machine
    • F04C15/0038Shaft sealings specially adapted for rotary-piston machines or pumps
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04CROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C13/00Adaptations of machines or pumps for special use, e.g. for extremely high pressures
    • F04C13/001Pumps for particular liquids
    • F04C13/002Pumps for particular liquids for homogeneous viscous liquids
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04CROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C15/00Component parts, details or accessories of machines, pumps or pumping installations, not provided for in groups F04C2/00 - F04C14/00
    • F04C15/0088Lubrication
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04CROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C2/00Rotary-piston machines or pumps
    • F04C2/08Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing
    • F04C2/12Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of other than internal-axis type
    • F04C2/14Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of other than internal-axis type with toothed rotary pistons
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04CROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C2240/00Components
    • F04C2240/50Bearings
    • F04C2240/56Bearing bushings or details thereof

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Rotary Pumps (AREA)
  • Details And Applications Of Rotary Liquid Pumps (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
  • Sliding-Contact Bearings (AREA)
  • Details Of Reciprocating Pumps (AREA)
EP95107891A 1995-05-24 1995-05-24 Lageranordnung für eine Pumpenwelle einer Pumpe für das Fördern von Medien mit unterschiedlicher Viskosität Expired - Lifetime EP0669465B1 (de)

Priority Applications (8)

Application Number Priority Date Filing Date Title
ES95107891T ES2110799T3 (es) 1995-05-24 1995-05-24 Disposicion de cojinete para un eje de una bomba para impeler medios con diferente viscosidad.
EP95107891A EP0669465B1 (de) 1995-05-24 1995-05-24 Lageranordnung für eine Pumpenwelle einer Pumpe für das Fördern von Medien mit unterschiedlicher Viskosität
DE59501083T DE59501083D1 (de) 1995-05-24 1995-05-24 Lageranordnung für eine Pumpenwelle einer Pumpe für das Fördern von Medien mit unterschiedlicher Viskosität
AT95107891T ATE161075T1 (de) 1995-05-24 1995-05-24 Lageranordnung für eine pumpenwelle einer pumpe für das fördern von medien mit unterschiedlicher viskosität
JP8535234A JPH11505910A (ja) 1995-05-24 1996-04-29 粘性の異なる媒体を搬送するためのポンプのポンプ軸用の軸受装置
PCT/CH1996/000164 WO1996037705A1 (de) 1995-05-24 1996-04-29 Lageranordnung für eine pumpenwelle einer pumpe für das fördern von medien mit unterschiedlicher viskosität
AU53304/96A AU5330496A (en) 1995-05-24 1996-04-29 Bearing system for the shaft of a pump for conveying media f differing viscosity
US08/952,649 US6123531A (en) 1995-05-24 1996-04-29 Bearing arrangement for a pump shaft of a pump for delivering media of different viscosities

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP95107891A EP0669465B1 (de) 1995-05-24 1995-05-24 Lageranordnung für eine Pumpenwelle einer Pumpe für das Fördern von Medien mit unterschiedlicher Viskosität

Publications (3)

Publication Number Publication Date
EP0669465A2 EP0669465A2 (de) 1995-08-30
EP0669465A3 true EP0669465A3 (de) 1995-12-20
EP0669465B1 EP0669465B1 (de) 1997-12-10

Family

ID=8219282

Family Applications (1)

Application Number Title Priority Date Filing Date
EP95107891A Expired - Lifetime EP0669465B1 (de) 1995-05-24 1995-05-24 Lageranordnung für eine Pumpenwelle einer Pumpe für das Fördern von Medien mit unterschiedlicher Viskosität

Country Status (8)

Country Link
US (1) US6123531A (de)
EP (1) EP0669465B1 (de)
JP (1) JPH11505910A (de)
AT (1) ATE161075T1 (de)
AU (1) AU5330496A (de)
DE (1) DE59501083D1 (de)
ES (1) ES2110799T3 (de)
WO (1) WO1996037705A1 (de)

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6544008B1 (en) * 1997-07-18 2003-04-08 John K. Apostolides Internal vent for reducing seal pressure in prelubrication pump assembly
US7137789B2 (en) * 1997-07-18 2006-11-21 Rpm Industries, Inc. Vent for reducing seal pressure in pump assembly
DE19833374B4 (de) * 1998-07-24 2007-03-22 Zf Friedrichshafen Ag Verdrängerpumpe
DE19835122A1 (de) * 1998-08-04 2000-02-10 Zahnradfabrik Friedrichshafen Verdrängerpumpe
DE10014548A1 (de) * 2000-03-23 2001-09-27 Bosch Gmbh Robert Zahnradförderpumpe
DE10031470A1 (de) 2000-06-28 2002-01-10 Krupp Werner & Pfleiderer Gmbh Zahnradpumpe
US6685453B2 (en) 2001-06-14 2004-02-03 Parker-Hannifin Corporation Fluid transfer machine with drive shaft lubrication and cooling
EP1855007A1 (de) * 2006-05-12 2007-11-14 Maag Pump Systems Textron AG Zahnradpumpe
KR100947715B1 (ko) * 2007-05-07 2010-03-16 나종갑 잉크 이송용 기어 펌프
WO2010035916A1 (en) * 2008-09-25 2010-04-01 Jong-Gap Na Pump having bypass route
EP2588756B1 (de) * 2010-07-02 2018-05-02 Oerlikon Textile GmbH & Co. KG Zahnradpumpe
DE102014111721A1 (de) 2014-08-18 2016-02-18 Getrag Getriebe- Und Zahnradfabrik Hermann Hagenmeyer Gmbh & Cie Kg Fluidbeaufschlagungsvorrichtung für ein Getriebe für ein Kraftfahrzeug
DE102016225847A1 (de) * 2016-12-21 2018-06-21 Robert Bosch Gmbh Fluidpumpe für ein Abwärmerückgewinnungssystem
US11143183B2 (en) * 2019-03-26 2021-10-12 Hamilton Sundstrand Corporation Gear pump bearing with hybrid pad shutoff
EP3862532A1 (de) * 2020-02-07 2021-08-11 Fluid-O-Tech S.r.l. Pumpe, insbesondere zum pumpen einer flüssigkeit wie tinte, farbe, kleber oder dergleichen
US11703050B2 (en) 2020-09-08 2023-07-18 Eaton Intelligent Power Limited Gear pump with self-lubricating bearings

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR572694A (fr) * 1923-11-06 1924-06-11 Perfectionnement aux pompes rotatives
DE442185C (de) * 1925-11-29 1927-03-22 Wolfgang Gaede Dr Einrichtung fuer Vakuum-Drehkolbenpumpen mit OElabschluss zur Verhinderung des OEleintritts in die Vakuumleitung beim Stillstand der Pumpe
DE544963C (de) * 1932-02-24 Pfeiffer Arthur Wellenabdichtung fuer Vakuumpumpen, insbesondere mit Drehkolben
JPS5773883A (en) * 1980-10-27 1982-05-08 Katsuya Ishizaki Oil leakage preventing method for rotary pump
DE3135037A1 (de) * 1980-09-12 1982-09-23 Barmag Barmer Maschinenfabrik Ag, 5630 Remscheid "austragspumpe"

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1554262A (en) * 1975-06-24 1979-10-17 Kayaba Industry Co Ltd Gear pump
GB1572467A (en) * 1977-02-01 1980-07-30 Hamworthy Hydraulics Ltd Gear pumps
US4392798A (en) * 1981-04-03 1983-07-12 General Signal Corporation Gear pump or motor with low pressure bearing lubrication
GB2102074B (en) * 1981-07-18 1985-01-30 Dowty Group Services Positive-displacement fluid-machines
US4737087A (en) * 1984-12-10 1988-04-12 Barmag Ag Drive shaft seal for gear pump and method
GB2169350B (en) * 1985-01-05 1989-06-21 Hepworth Plastics Ltd Gear pumps
DE59303699D1 (de) * 1992-03-06 1996-10-17 Berstorff Gmbh Masch Hermann Einrichtung zur Verarbeitung von hochviskosem Kautschuk oder thermoplastischem Kunststoff
EP0846860A3 (de) * 1992-10-28 1998-07-01 Maag Pump Systems Textron AG Verfahren und Stufe zur Behandlung einer Thermoplastschmelze mit einer Zahnradpumpe
US5641281A (en) * 1995-11-20 1997-06-24 Lci Corporation Lubricating means for a gear pump
ATE208461T1 (de) * 1996-02-09 2001-11-15 Maag Pump Systems Ag Zahnradpumpe

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE544963C (de) * 1932-02-24 Pfeiffer Arthur Wellenabdichtung fuer Vakuumpumpen, insbesondere mit Drehkolben
FR572694A (fr) * 1923-11-06 1924-06-11 Perfectionnement aux pompes rotatives
DE442185C (de) * 1925-11-29 1927-03-22 Wolfgang Gaede Dr Einrichtung fuer Vakuum-Drehkolbenpumpen mit OElabschluss zur Verhinderung des OEleintritts in die Vakuumleitung beim Stillstand der Pumpe
DE3135037A1 (de) * 1980-09-12 1982-09-23 Barmag Barmer Maschinenfabrik Ag, 5630 Remscheid "austragspumpe"
JPS5773883A (en) * 1980-10-27 1982-05-08 Katsuya Ishizaki Oil leakage preventing method for rotary pump

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 6, no. 157 (M - 150) 18 August 1982 (1982-08-18) *

Also Published As

Publication number Publication date
AU5330496A (en) 1996-12-11
WO1996037705A1 (de) 1996-11-28
EP0669465B1 (de) 1997-12-10
JPH11505910A (ja) 1999-05-25
ATE161075T1 (de) 1997-12-15
DE59501083D1 (de) 1998-01-22
ES2110799T3 (es) 1998-02-16
US6123531A (en) 2000-09-26
EP0669465A2 (de) 1995-08-30

Similar Documents

Publication Publication Date Title
EP0669465A3 (de) Lageranordnung für eine Pumpenwelle einer Pumpe für das Fördern von Medien mit unterschiedlicher Viskosität.
EP0361544A3 (de) Lager
GB2330180A (en) Both ends open fluid dynamic bearing having a journal in combination with a conical bearing
ATE280406T1 (de) Druckregelvorrichtung für eine vakuumkammer, und eine mit einer solchen vorrichtung versehenen vakuumpumpeinheit
EP0881362A3 (de) Schublager für einen Turbolader
MY126636A (en) Scroll compressor
EP0908930A3 (de) Flüssigkeitssteuerungseinrichtung
EP0864045A4 (de) Flüssigkeitspumpe mit einem lagersatz mit schmierstoffkanälen
AU4367097A (en) Pressure responsive primary ring geometry for a non- contacting mechanical end face seal
GB2058240B (en) Lubricating shaft assemblies
EP0156096A3 (de) Wellendichtung
CA2299024A1 (en) Transmission lubrication arrangement
CA2219369A1 (en) Hydraulically-operable locking differential including adjustable retainer ring ducting
EP0825355A3 (de) Luftgeschmiertes hydrodynamisches Keramiklager
CA2252380A1 (en) Sealing system for a hydraulic machine
CA2219716A1 (en) Clutch pressure plate with backing plate
AU5659390A (en) Self-feed device for lubricating a bearing
SE9701779D0 (sv) A hydraulic nut
CA2232993A1 (en) Coupling
EP0922873A3 (de) Hydrodynamisches Wellenlager mit einem konzentrischen, aussenhydrostatischen Lager
EP0879982A3 (de) Drehkupplung, Feuerwehrschlauch-Kupplung und Schlauch-Klemmvorrichtung
CA2306171A1 (en) Method and apparatus for introduction of a first fluid into a second fluid
EP0390425A3 (de) Flüssigkeitsförderapparat mit Wellenbüchse und Verlängerung
WO2000009888A3 (de) Pumpe
JPS5712164A (en) Air supply device to rotor

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 DK ES FR GB GR IE IT LI LU MC NL PT SE

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 DK ES FR GB GR IE IT LI LU MC NL PT SE

17P Request for examination filed

Effective date: 19951207

GRAG Despatch of communication of intention to grant

Free format text: ORIGINAL CODE: EPIDOS AGRA

GRAG Despatch of communication of intention to grant

Free format text: ORIGINAL CODE: EPIDOS AGRA

GRAH Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOS IGRA

17Q First examination report despatched

Effective date: 19970430

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

Owner name: MAAG PUMP SYSTEMS TEXTRON AG

ITF It: translation for a ep patent filed
GRAH Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOS IGRA

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 DK ES FR GB GR IE IT LI LU MC NL PT SE

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

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: 19971210

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: 19971210

Ref country code: DK

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

Effective date: 19971210

REF Corresponds to:

Ref document number: 161075

Country of ref document: AT

Date of ref document: 19971215

Kind code of ref document: T

REG Reference to a national code

Ref country code: CH

Ref legal event code: NV

Representative=s name: TROESCH SCHEIDEGGER WERNER AG

Ref country code: CH

Ref legal event code: EP

GBT Gb: translation of ep patent filed (gb section 77(6)(a)/1977)

Effective date: 19971211

REF Corresponds to:

Ref document number: 59501083

Country of ref document: DE

Date of ref document: 19980122

ET Fr: translation filed
REG Reference to a national code

Ref country code: ES

Ref legal event code: FG2A

Ref document number: 2110799

Country of ref document: ES

Kind code of ref document: T3

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

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: 19980310

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: 19980310

NLV1 Nl: lapsed or annulled due to failure to fulfill the requirements of art. 29p and 29m of the patents act
REG Reference to a national code

Ref country code: IE

Ref legal event code: FG4D

Free format text: 77833

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

Ref country code: LU

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

Effective date: 19980524

Ref country code: AT

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

Effective date: 19980524

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 NON-PAYMENT OF DUE FEES

Effective date: 19980531

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: 19980714

REG Reference to a national code

Ref country code: IE

Ref legal event code: FD4D

Ref document number: 77833

Country of ref document: IE

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

BERE Be: lapsed

Owner name: MAAG PUMP SYSTEMS TEXTRON A.G.

Effective date: 19980531

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 NON-PAYMENT OF DUE FEES

Effective date: 19981130

26N No opposition filed
REG Reference to a national code

Ref country code: GB

Ref legal event code: IF02

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

Ref country code: ES

Payment date: 20020419

Year of fee payment: 8

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

Ref country code: GB

Payment date: 20020527

Year of fee payment: 8

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

Ref country code: DE

Payment date: 20030522

Year of fee payment: 9

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: 20030524

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

Ref country code: ES

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

Effective date: 20030526

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

Ref country code: FR

Payment date: 20030526

Year of fee payment: 9

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

Ref country code: CH

Payment date: 20030731

Year of fee payment: 9

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

Effective date: 20030524

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: 20040531

Ref country code: CH

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

Effective date: 20040531

REG Reference to a national code

Ref country code: ES

Ref legal event code: FD2A

Effective date: 20030526

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

Ref country code: DE

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

Effective date: 20041201

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: FR

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

Effective date: 20050131

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

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 NON-PAYMENT OF DUE FEES;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.

Effective date: 20050524