EP0656480A1 - Compresseur à canal latéral - Google Patents

Compresseur à canal latéral Download PDF

Info

Publication number
EP0656480A1
EP0656480A1 EP94118388A EP94118388A EP0656480A1 EP 0656480 A1 EP0656480 A1 EP 0656480A1 EP 94118388 A EP94118388 A EP 94118388A EP 94118388 A EP94118388 A EP 94118388A EP 0656480 A1 EP0656480 A1 EP 0656480A1
Authority
EP
European Patent Office
Prior art keywords
side channel
housing
elements
iii
attachment elements
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
EP94118388A
Other languages
German (de)
English (en)
Other versions
EP0656480B1 (fr
Inventor
Walter Winkelströter
Dieter Frohn
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.)
Gebr Becker GmbH
Gebr Becker GmbH and Co KG
Original Assignee
Gebr Becker GmbH
Gebr Becker GmbH and Co KG
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 Gebr Becker GmbH, Gebr Becker GmbH and Co KG filed Critical Gebr Becker GmbH
Publication of EP0656480A1 publication Critical patent/EP0656480A1/fr
Application granted granted Critical
Publication of EP0656480B1 publication Critical patent/EP0656480B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D23/00—Other rotary non-positive-displacement pumps
    • F04D23/008—Regenerative pumps
    • 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
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S415/00—Rotary kinetic fluid motors or pumps
    • Y10S415/912—Interchangeable parts to vary pumping capacity or size of pump
    • 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
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00—Fluid handling
    • Y10T137/5109—Convertible
    • Y10T137/5283—Units interchangeable between alternate locations

Definitions

  • the invention relates to a side channel compressor with an annular impeller housing with air intake and air outlet nozzle, with the nozzles such as z. B. silencers, filters or safety valves are to be connected.
  • the invention has for its object to provide attachments for a side channel blower that are less expensive to manufacture, assemble and stock and that allow a compact overall design of the side channel blower that is almost always constant.
  • the attachments are designed as a kit consisting of elements which can be directly connected in their axial direction and each have tubular basic housings.
  • the invention offers the possibility of selecting the attachment elements of the same length, preferably of the same length, on the intake and outlet ports, and combining them as compact towers, so that even with differently equipped side channel compressors, the overall appearance is always approximately the same and always takes up essentially the same space at the installation site can be assumed.
  • the connecting piece and the attachments connected thereto extend perpendicular to the ring plane of the side channel compressor, wherein they can preferably extend closely next to the drive motor of the side channel compressor.
  • the tubular base housings of the attachment elements are preferably aligned with one another.
  • each connection piece is associated with an insertable pipe elbow between the connection piece and attachments, the outlet axis of which, in the assembled state, is directed parallel to the ring plane of the side channel compressor, and that the connected attachments extend closely along one of the end faces of the side channel compressor .
  • a pipe bend of 90 ° curvature is provided, while in a side channel compressor with a radially directed pipe connection a pipe bend of 180 ° curvature is used.
  • the respective end-to-end attachment elements can be clamped together with an upper end cap by means of clamping screws penetrating them and engaging in threaded bores of the intake or exhaust port, so that uniform fastening means can be used in all cases.
  • two attachment elements are sufficient for the intake and outlet connections, in which case the clamping screws have a length for clamping two attachment elements together.
  • three or more attachment elements can also be lined up in each case, in which case only correspondingly longer clamping screws are to be used. This simplifies assembly. Only the single-function attachment elements are kept in stock, which reduces the cost of manufacture and warehousing in view of the reduction in type compared to the prior art.
  • the attachment elements for filters and safety valves have housing connections protruding laterally from the basic housing for accommodating the filter elements and valve arrangements.
  • the housings of these front elements are advantageously of identical design in order to reduce costs, with the filter front element being assigned a closed end cap and the safety valve front elements each being provided with an opening provided with an opening which can be screwed onto the housing neck.
  • the basic housing has a partition that is step-shaped in axial section, that a passage opening coaxial to the housing connection is provided in the step wall parallel to the axis of the basic housing, and that on the step wall there is a holder for a tubular that is open towards the housing connection , filter element that can be inserted into the housing socket is arranged.
  • valve arrangements can advantageously each be carried by a disk which can be clamped between the front end of the housing connector and the associated end cap.
  • the kit includes both silencer attachment elements of system length and double system length. In many cases, only a silencer is required for an intake or outlet connection. According to the invention, this can be realized either from two muffler attachment elements of system length or by only one muffler attachment element of double system length.
  • the basic housing has a step-shaped partition in axial section, that in the step wall parallel to the axis of the basic housing a coaxial passage opening is provided for the housing connection piece and that on the step wall an open holder towards the housing connection piece for a tubular insertable into the housing connection piece Filter element is arranged, wherein the filter element lies with about a third or more of its length in the basic housing.
  • FIG. 1 shows an annular, two-shell impeller housing 1 of a side channel compressor with a drive motor 2.
  • the impeller housing 1 is provided with an air intake 3 and an air outlet 4, each of which is directed perpendicular to the plane of the annular impeller housing 1, cf. also FIG. 2.
  • FIG. 1 shows a single-stage side-channel compressor standing on feet 5, but the invention can also be implemented in the same way with side-channel compressors arranged horizontally and also with two-stage side-channel compressors.
  • the side channel blower is assigned several attachments I, II, III, IV which can be connected to the nozzles 3, 4 and which are selected according to the demands made and connected in series to the nozzles 3 and 4.
  • the resulting attachment towers are each provided with an end cap 6, after which the respective attachment towers are then clamped together with the cap 6 on the impeller housing 1 by means of long head tensioning screws 7.
  • the clamping screws 7 each penetrate the attachment towers formed and are screwed with their threaded end 8 into associated threaded bores 9 provided in the area of the connecting pieces 3, 4, cf. also Fig. 11.
  • the attachment elements I to IV each have the same system length L.
  • the front element I is a silencer
  • the front unit II is a filter
  • the front unit III is a vacuum safety valve
  • the front element IV is a pressure safety valve.
  • Fig. 3 schematically illustrates a side channel compressor, on the intake and outlet ports 3, 4, two muffler attachments I are connected.
  • two muffler attachment elements I are connected to the intake manifold 3
  • a pressure safety valve attachment element IV and a muffler attachment element I are connected downstream of the outlet connection 4.
  • 5 to 8 illustrate, by way of example, further possible variations in equipping side-channel compressors with different attachment elements I, II, III and IV. In all cases, there is a compact overall structure with always almost the same overall dimensions and almost the same appearance. Other variations are possible.
  • the attachment elements III and II connected to the intake manifold 3 can also be interchanged.
  • FIGS. 3, 4, 5, 6 and 8 in practice in many cases one or the other nozzle 3, 4 or both requires only muffler attachment elements I.
  • the muffler attachment element V shown in FIG. 9, which has twice the system length L can be used instead of the two short muffler attachment elements 1, the muffler attachment element V shown in FIG. 9, which has twice the system length L, can be used.
  • FIG. 10 illustrates the use of the silencer attachment element V as an alternative to the embodiment according to FIG. 5.
  • FIG. 11 shows, on an enlarged scale and in an axial section, that in the embodiment according to FIG. 6 used front elements.
  • the muffler attachment elements I connected to the outlet connection 4 are each provided with a muffler lining 10.
  • a filter attachment element II is connected to the intake manifold 3 and then a silencer element I is connected to it.
  • the housing of the filter attachment element II consists of a tubular base housing 12 which is aligned with the tubular housing 11 of the muffler attachment element I and from which a housing connection piece 13 projects, which can be closed by a screw-on end cap 14.
  • the basic housing 12 has in the interior a partition 15 which is step-shaped in axial section, a through-opening 17 being provided in the step wall 16 which is parallel to the axis of the basic housing 12 and which is coaxial with the connecting piece 13.
  • a sleeve-shaped holder 18 which is open toward the socket 13 and into which a tubular filter element 19 with an end face is inserted, is attached. As can be seen from FIG.
  • the filter element 19 lies within the basic housing 12 with more than a third of its length.
  • the air sucked in through the end cap 6 is deflected sideways into the socket 13 by the upper step wall 20 and the sleeve-shaped holder 18 .
  • the air flows through the passage opening 17 into the space below the lower step wall 21 and on to the intake port 3.
  • a pressure safety valve attachment element IV and are on the outlet nozzle 4 subsequently a silencer attachment element I is connected.
  • the housing of the attachment element IV is identical to the housing of the filter element II and comprises the basic housing 12, the housing connector 13 and the step-shaped partition 15.
  • the valve arrangement 22 is carried by a disk 23 which is clamped between the front end of the housing connector 13 and an end cap 24 is, the end cap 24 is provided on the bottom side with through openings 25.
  • a filter attachment II and a muffler attachment element I are connected to the intake port 3 and a pressure safety valve attachment element IV and a muffler attachment element I are connected to the outlet port 4.
  • a vacuum safety valve attachment element III and a filter attachment element II are connected to the intake connector 3 and the double-length silencer attachment element V is connected to the outlet connector 4.
  • the same housing is used as for the front elements II and IV and an identical end cap 24 is also provided as for the front element III.
  • the valve arrangement 26 is in turn supported by a disk 27 which is clamped between the housing connector 13 and the end cap 24.
  • the housings of the front elements II, III are combined here to form a single housing of double system length.
  • FIGS. 15 and 16 illustrate an embodiment in which the impeller housing 1 has radially directed connecting pieces 28, 29.
  • the connecting piece 28.29 is a 180 ° elbow 30,31 directly connected
  • the outlet axis 32 ie the central axis of the outlet-side opening of the elbows 30,31, are directed parallel to the ring plane of the impeller housing 1.
  • attachments I, II, III are connected to the outlet side of the pipe elbows 30, 31, which now extend parallel to the ring plane of the impeller 1, in the exemplary embodiment on the side opposite the drive motor 2.
  • the impeller housing in turn has axially directed nozzles 33, 34, which are open at both ends, with the ends I, II, III at each end, with the interposition of a 90 ° pipe elbow 35, 36 or 37, 38 are connected, while the unused end of the connecting piece is covered by a cap 39.
  • the attachments I, II, III extend parallel to the ring plane of the side channel compressor, specifically on the side facing away from the motor 2.
  • the attachments I, II, III extend next to the end of the impeller facing the motor 2, and the attachments enclose the motor 2 between them. Since the connecting pieces 33, 34 are usually arranged closer together than the outer diameter of the motor 2, the pipe elbows 37, 38 are additionally bent slightly outwards so that the attachments I, II, III pass by the motor 2 can be.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
  • Compressor (AREA)
  • Compressors, Vaccum Pumps And Other Relevant Systems (AREA)
EP94118388A 1993-12-03 1994-11-23 Compresseur à canal latéral Expired - Lifetime EP0656480B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4341266A DE4341266C1 (de) 1993-12-03 1993-12-03 Seitenkanalverdichter
DE4341266 1993-12-03

Publications (2)

Publication Number Publication Date
EP0656480A1 true EP0656480A1 (fr) 1995-06-07
EP0656480B1 EP0656480B1 (fr) 2001-04-11

Family

ID=6504127

Family Applications (1)

Application Number Title Priority Date Filing Date
EP94118388A Expired - Lifetime EP0656480B1 (fr) 1993-12-03 1994-11-23 Compresseur à canal latéral

Country Status (3)

Country Link
US (1) US5603601A (fr)
EP (1) EP0656480B1 (fr)
DE (2) DE4341266C1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102012101185A1 (de) 2011-08-03 2013-02-07 Gebr. Becker Gmbh Strömungsmaschine, Luftfilter-Vorsatz und Filterteil

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5718561A (en) 1994-11-22 1998-02-17 Siemens Aktiengesellschaft Side channel compressor
JP3546275B2 (ja) * 1995-06-30 2004-07-21 忠弘 大見 流体制御装置
AU7489396A (en) * 1995-09-15 1997-04-01 Siemens Aktiengesellschaft Compressor unit
US6755625B2 (en) 2002-10-07 2004-06-29 Robert H. Breeden Inlet throttle valve
DE10344721B4 (de) * 2003-09-26 2006-07-20 Elektror M. Müller GmbH Seitenkanalverdichter
GB2421279A (en) * 2004-12-15 2006-06-21 Apiro Autostyle Ltd I.c. engine air intake pipe with interchangeable fittings and adaptors
KR100659517B1 (ko) 2005-12-06 2006-12-20 양해숙 압축기의 소음저감장치
DE102011055499A1 (de) 2011-11-18 2013-05-23 Gebr. Becker Gmbh Metallgehäuse für einen Ansaug- oder Ausblaskörper
DE102016109994A1 (de) * 2016-05-31 2017-11-30 Eberspächer Climate Control Systems GmbH & Co. KG Seitenkanalgebläse, insbesondere für ein Fahrzeugheizgerät
DE102017108151B4 (de) * 2017-04-18 2023-03-02 Eberspächer Climate Control Systems GmbH Verbrennungsluftgebläse und Fahrzeugheizgerät mit einem derartigen Verbrennungsluftgebläse
DE102017110018A1 (de) * 2017-05-10 2018-11-15 Eberspächer Climate Control Systems GmbH & Co. KG Fahrzeugheizgerät

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1373463A (fr) * 1963-10-29 1964-09-25 Siemens Ag Soufflerie annulaire construite selon le principe du canal de dérivation
GB1101966A (en) * 1966-02-01 1968-02-07 Singer Co Casing structure for vortex fan
DE2223762A1 (de) * 1972-05-16 1973-11-29 Elektror Karl W Mueller Druck- und volumenregler fuer motorisch angetriebene verdichter fuer gase oder foerdereinrichtungen von fluessigkeiten
DE4107942A1 (de) * 1990-03-12 1991-09-19 Orpu Gmbh Schalldaempferbefestigung

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2319776A (en) * 1940-11-08 1943-05-25 Joshua Hendy Iron Works Rotary pump
US3395853A (en) * 1965-12-29 1968-08-06 Rotron Mfg Co Vortex compressor
US3360193A (en) * 1965-12-29 1967-12-26 Rotron Mfg Co Regenerative compressors with integral mufflers
DE7441311U (de) * 1974-12-11 1976-07-01 Siemens Ag, 1000 Berlin Und 8000 Muenchen Verdichteranordnung
US5050631A (en) * 1989-08-23 1991-09-24 Honda Giken Kogyo Kabushiki Kaisha Fluid diverging system

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1373463A (fr) * 1963-10-29 1964-09-25 Siemens Ag Soufflerie annulaire construite selon le principe du canal de dérivation
GB1101966A (en) * 1966-02-01 1968-02-07 Singer Co Casing structure for vortex fan
DE2223762A1 (de) * 1972-05-16 1973-11-29 Elektror Karl W Mueller Druck- und volumenregler fuer motorisch angetriebene verdichter fuer gase oder foerdereinrichtungen von fluessigkeiten
DE4107942A1 (de) * 1990-03-12 1991-09-19 Orpu Gmbh Schalldaempferbefestigung

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102012101185A1 (de) 2011-08-03 2013-02-07 Gebr. Becker Gmbh Strömungsmaschine, Luftfilter-Vorsatz und Filterteil
WO2013017383A1 (fr) 2011-08-03 2013-02-07 Gebr. Becker Gmbh Adaptateur de filtre à air pour soufflante à canal latéral
US9675921B2 (en) 2011-08-03 2017-06-13 Gebr. Becker Gmbh Air filter attachment for side channel compressor
EP3369471A1 (fr) 2011-08-03 2018-09-05 Gebr. Becker GmbH Cartouche filtrante allongée et courbée avec deux bougies filtrantes, destinée à l'utilisation dans un filtre à air

Also Published As

Publication number Publication date
DE4341266C1 (de) 1994-07-21
US5603601A (en) 1997-02-18
EP0656480B1 (fr) 2001-04-11
DE59409723D1 (de) 2001-05-17

Similar Documents

Publication Publication Date Title
EP0656480B1 (fr) Compresseur à canal latéral
AT2490U1 (de) Kühleranordnung für eine aufgeladene brennkraftmaschine mit abgasrückführung
DE19625990A1 (de) Anordnung von Abgasturbolader und Abgaskrümmer an einer Brennkraftmaschine
EP0716222A1 (fr) Agencement de soupape de gaz d'échappement
DE3514989A1 (de) Druckluftversorgungseinrichtung fuer fahrzeug-druckluftanlagen
DE19857577A1 (de) Abgasrückführungssystem für eine Brennkraftmaschine
DE2805015C2 (fr)
EP0392438B1 (fr) Dispositif pour l'échappement d'air amené
DE102004049446A1 (de) Vorrichtung zur Absenkung von Strömungsgeräuschen
EP0832352B1 (fr) Module de tuyau
EP1099829A2 (fr) Pièce d'insertion pour silencieux
AT404287B (de) Saugrohr einer brennkraftmaschine
EP0643202A1 (fr) Bride de fixation de tuyaux à un bloc moteur
DE29512732U1 (de) Schalldämpfer für die Abgasanlage eines Verbrennungsmotors
EP1297880B1 (fr) Filtre à air pour moteur à combustion interne
EP0753657A1 (fr) Collecteur d'admission d'air pour un moteur à combustion interne
DE3122520C2 (fr)
EP0639243B1 (fr) Carter de pompe
DE3844140C1 (en) Electrostatic exhaust-gas purification device for combustion gases
DE19817026C2 (de) Dämpfungselement zur Verwendung in einem Auspuffkanal
EP1049866B1 (fr) Filtre a air dote d'un organe amortisseur et destine a des moteurs a combustion interne
DE19756026C2 (de) Zweistufiges Ringkanalgebläse
DE2521837C2 (de) Schalldämpfendes Leitungsstück für sanitäre Wasserarmaturen
EP1413768A1 (fr) Pompe avec capteur dans le carter de pompe
EP0581178B1 (fr) Installation de couvercles de filtres à construction modulaire

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: A1

Designated state(s): CH DE FR GB IT LI

17P Request for examination filed

Effective date: 19951107

17Q First examination report despatched

Effective date: 19961204

APAB Appeal dossier modified

Free format text: ORIGINAL CODE: EPIDOS NOAPE

APAB Appeal dossier modified

Free format text: ORIGINAL CODE: EPIDOS NOAPE

APAD Appeal reference recorded

Free format text: ORIGINAL CODE: EPIDOS REFNE

APCB Communication from the board of appeal sent

Free format text: ORIGINAL CODE: EPIDOS OBAPE

APCB Communication from the board of appeal sent

Free format text: ORIGINAL CODE: EPIDOS OBAPE

APAB Appeal dossier modified

Free format text: ORIGINAL CODE: EPIDOS NOAPE

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

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): CH DE FR GB IT LI

REG Reference to a national code

Ref country code: CH

Ref legal event code: EP

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

Effective date: 20010412

REF Corresponds to:

Ref document number: 59409723

Country of ref document: DE

Date of ref document: 20010517

ET Fr: translation filed
ITF It: translation for a ep patent filed
REG Reference to a national code

Ref country code: CH

Ref legal event code: NV

Representative=s name: R. A. EGLI & CO. PATENTANWAELTE

REG Reference to a national code

Ref country code: GB

Ref legal event code: IF02

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
APAH Appeal reference modified

Free format text: ORIGINAL CODE: EPIDOSCREFNO

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

Ref country code: FR

Payment date: 20101119

Year of fee payment: 17

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

Ref country code: DE

Payment date: 20101104

Year of fee payment: 17

Ref country code: CH

Payment date: 20101109

Year of fee payment: 17

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

Ref country code: IT

Payment date: 20101126

Year of fee payment: 17

Ref country code: GB

Payment date: 20101109

Year of fee payment: 17

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

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

Effective date: 20111123

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: 20111130

Ref country code: CH

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

Effective date: 20111130

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

Effective date: 20120731

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

Effective date: 20111123

REG Reference to a national code

Ref country code: DE

Ref legal event code: R119

Ref document number: 59409723

Country of ref document: DE

Effective date: 20120601

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: 20111123

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: 20111130

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: 20120601