EP1041595A2 - Ensemble de pompe centrifuge - Google Patents

Ensemble de pompe centrifuge Download PDF

Info

Publication number
EP1041595A2
EP1041595A2 EP00106498A EP00106498A EP1041595A2 EP 1041595 A2 EP1041595 A2 EP 1041595A2 EP 00106498 A EP00106498 A EP 00106498A EP 00106498 A EP00106498 A EP 00106498A EP 1041595 A2 EP1041595 A2 EP 1041595A2
Authority
EP
European Patent Office
Prior art keywords
housing
lever
centrifugal pump
pump unit
flow
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
EP00106498A
Other languages
German (de)
English (en)
Other versions
EP1041595A3 (fr
EP1041595B1 (fr
EP1041595B2 (fr
Inventor
Niels Due Jensen
Carsten Nörgaard
Jörgen Schmidt
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.)
Grundfos AS
Original Assignee
Grundfos AS
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=7903058&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP1041595(A2) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Grundfos AS filed Critical Grundfos AS
Publication of EP1041595A2 publication Critical patent/EP1041595A2/fr
Publication of EP1041595A3 publication Critical patent/EP1041595A3/fr
Publication of EP1041595B1 publication Critical patent/EP1041595B1/fr
Application granted granted Critical
Publication of EP1041595B2 publication Critical patent/EP1041595B2/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H35/00—Switches operated by change of a physical condition
    • H01H35/24—Switches operated by change of fluid pressure, by fluid pressure waves, or by change of fluid flow
    • H01H35/40—Switches operated by change of fluid pressure, by fluid pressure waves, or by change of fluid flow actuated by devices allowing continual flow of fluid, e.g. vane
    • H01H35/405—Switches operated by change of fluid pressure, by fluid pressure waves, or by change of fluid flow actuated by devices allowing continual flow of fluid, e.g. vane the switch being of the reed switch type
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D15/00—Control, e.g. regulation, of pumps, pumping installations or systems
    • F04D15/02—Stopping of pumps, or operating valves, on occurrence of unwanted conditions
    • F04D15/0209—Stopping of pumps, or operating valves, on occurrence of unwanted conditions responsive to a condition of the working fluid
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D15/00—Control, e.g. regulation, of pumps, pumping installations or systems
    • F04D15/02—Stopping of pumps, or operating valves, on occurrence of unwanted conditions
    • F04D15/0209—Stopping of pumps, or operating valves, on occurrence of unwanted conditions responsive to a condition of the working fluid
    • F04D15/0218—Stopping of pumps, or operating valves, on occurrence of unwanted conditions responsive to a condition of the working fluid the condition being a liquid level or a lack of liquid supply
    • F04D15/0227—Lack of liquid level being detected using a flow transducer

Definitions

  • the invention relates to a centrifugal pump unit with the in the preamble of Claim 1 specified features.
  • Centrifugal pump units of this type are used today to increase pressure, as so-called booster pumps.
  • the central water supply does not always have a sufficiently high operating pressure
  • the static pressure is usually only very low due to the height difference between the storage container and the tapping point, it is particularly necessary when using electric or gas-operated instantaneous water heaters or comparable devices that require a minimum water flow to use such booster pumps.
  • Booster pumps are typically used for pressure increases of 0.6 to 0.8 bar with a flow rate of 0.5 to 1 m 3 / h.
  • centrifugal pump units are part of the prior art.
  • Such units are specially designed and designed for this purpose a terminal box that extends over the motor housing to the pump housing and there has an electromagnetic switching device which with a in this area in the flow path, two-armed, pivotable stored lever is operatively connected. This lever protrudes with one arm the flow path and carries a magnet on the other arm, which the Controls switching device in the form of a reed contact.
  • the object of the invention is to create a generic one Centrifugal pump unit to be designed so that largely standardized Components from large series production can be used to reduce manufacturing costs to reduce.
  • the basic idea of the invention is to physically and physically connect the terminal box to be arranged separately from the flow switch in order to create a terminal box to be able to use it as it is for other centrifugal pump units Size, especially heating circulation pumps is used. Furthermore can the centrifugal pump unit through the cartridge-like in the pump housing integrated guard housing either with or without a flow guard can be used by fitting an appropriate sealing cap.
  • the pump set is not only simplified in terms of design, but also in terms of more versatile on the application.
  • the shift lever which projects with one arm into the flow path and its other arm carries a magnet. So the magnet is inside the guard housing, while the switching device is still arranged in the terminal box remains. Terminal box and guard housing are therefore only magnetic connected to each other, but otherwise physically and spatially completely separated from each other. It is understood that terminal box and Guard housing are to be arranged adjacent to each other to the magnetic Ensure active connection. Otherwise, the terminal box can be known Way to be attached to the motor housing, with only those for the electrical safety seals required must be provided, however Seals against the pumped medium are completely eliminated. Because the guard housing to the outside, i.e.
  • a seal is sufficient opposite the pump housing to seal against the flow to ensure to the outside.
  • a simple ring seal is sufficient, if the part of the guard housing protruding into the pump housing essentially is cylindrical.
  • Such a cylindrical shape with corresponding Breakthroughs in the area of the flow channel is not only regarding aforementioned seal against the pump housing advantageous, but It also makes assembly easier, as it can be tilted by turning it slightly can be picked up when inserted.
  • the guard housing is preferably designed such that the outside of the pump housing lying housing part is completely closed. To this In this way, no sealing arrangements are required within the guard housing, the tightness of the arrangement is reliably guaranteed.
  • the one that is pivotally mounted within the guard housing Lever formed by a one-piece injection molded part, which not only the two Lever arms, i.e. the arm protruding into the flow path and the magnet supporting arm, but also has a pivot axis with which the lever is mounted within the housing.
  • the outer contour of the paddle-like lever arm should be essentially that Flow channel cross-section correspond to a response as sensitive as possible to enable.
  • the solution according to the invention allows the lever with both lever arms in Arrange fluid - so it is not necessary to place it inside the guard housing to provide a seal between the two lever arms - but it is it expedient, the lever arm that carries the magnet, and the pivot axis Protect against the guard housing with an elastic sleeve. On this prevents contamination or deposits in it Area of the guard housing or that there are currents inside train this housing part.
  • the lever arrangement is preferably designed such that the one acting on the lever Flow force with increasing deflection of the paddle-like lever out of the Flow path decreases. On the one hand, this can be achieved by appropriate shaping the paddle-like lever arm and on the other hand by a corresponding Interpretation of the lever return arrangement are supported.
  • the lever provision is also preferably carried out by means of magnetic force, for this purpose within or Another magnet (auxiliary magnet) is provided outside the guard housing can be, depending on the arrangement, either repulsive or attractive.
  • the auxiliary magnet is expediently arranged with respect to that on the lever arm Magnets so polarized that it repels them. This arrangement is particularly favorable because it allows the pump housing to be selected to manufacture from plastic or from a ferromagnetic material without that there is a risk that the lever due to the magnetic force near the pump housing wall holds on.
  • Terminal box and guard housing terminal boxes are used as they are for heating circulation pumps already built inexpensively in large quantities be, with only the circuit board located inside the terminal box Modify accordingly to accommodate the reed relay at a suitable location.
  • Such terminal boxes known from heating circulation pumps have usually a three-stage switch on the for heating circulation pumps Speed setting is used. It is therefore particularly beneficial to do this anyway to use existing switches for the pump unit according to the invention, what in that this tap changer with the switching functions ON, OFF and flow switch control is applied.
  • There can be more Series parts can be used for the special purpose.
  • the centrifugal pump unit shown in FIG. 1 has a motor housing 1, which receives an electric motor, with a stator 2 and one Rotor 3, which is separated from the stator space in a manner known per se via a can is.
  • the rotor 3 has a shaft 4 which carries a gyroscope 5 which is arranged within a pump housing 6.
  • the pump housing 6 is screwed to the motor housing 1 and has one Suction nozzle 7, whose channel opens into the suction mouth of the impeller 5.
  • Suction nozzle 7 As in Spiral casings of this type are customary, closes radially to the impeller 5 a pressure port 8 leading channel 9. In the area of this channel 9 is a Flow monitor 10 arranged.
  • a terminal box 11 is arranged on the side of the motor housing 1, in which the electrical wiring between the stationary network and the motor takes place and in addition, all the other electronics of the unit is arranged. 1 of these components can be seen a capacitor 12, a circuit board 13 and between the circuit board 13 and the housing wall arranged reed relay 14.
  • the terminal box 11 is by a removable cover 15 completed.
  • the flow switch 10 has a lever 16 which is designed as an injection molded part a pivot axis 17, a lever arm 18 projecting into the channel 9 and has a lever arm 19 projecting to the other side.
  • the lever arm 18 is paddle-like, as can be clearly seen in FIG. 3. Its outer contour is adapted to the channel cross section in this area, so that it Channel 9 almost completely closed in the rest position.
  • the other side of the Pivot axis 17 arranged lever arm 19 is a holder for one thereon attached magnet 20 formed.
  • the magnet 20 has a cylindrical shape and a north-south polarization along the cylinder axis, so that one end the North Pole and the other end forms the South Pole, like that in the Figures 7 and 8 illustrate the drawn magnetic field lines.
  • the magnet 20 acts with the reed relay 14 arranged in the terminal box 11 together, so that depending on the position of the lever 16 or the magnet 20 that Reed relay 14 is in one or the other switching position.
  • the two Switch positions are shown in Figures 7 and 8.
  • the circuit takes place such that in the rest position (Fig. 7), so when there is no flow inside of channel 9 takes place, the engine is switched off and in the other deflected Position (Fig. 8) the engine is switched on.
  • the lever 16 is mounted within a guard housing 21, which is in three parts is trained. It has a cartridge-like insertion part 22, which is in the has a substantially cylindrical outer contour and two plastic injection molded parts 22a and 22b is formed.
  • the insertion part has a channel 9 that continues Opening across to the direction of insertion.
  • the insert halves 22a and 22b are joined together by means of dowel pins 23, incorporating the lever 16. In the installed position, the halves become correspondingly cylindrical designed cross bore to the channel 9 in the pump housing 6. About that an outer housing 24 made of plastic injection molding also overlaps a cylindrical shoulder of the insert part 22.
  • guard housing 21 is not only in the area of the paddle-like lever arm 18 has fluid contact, but the interior of the outer housing 24 can also be fluid-filled, all that is required an annular seal 25 with which the outer housing 24 opposite the transverse bore is sealed in the pump housing 6.
  • an elastic protective sleeve 26 is provided, which on the one hand sits on the lever 16 and on the other hand within the insertion part 22 is held.
  • the protective sleeve is initially so far above the Lever 16 pushed until it is in its intended position approximately in the middle (see Fig. 3) takes. From this position it can due to a head start 27 do not slip off the lever.
  • the edge of the cuff is then in the insert 22 fixed, then the entire insertion part with the lever located thereon is inserted into the outer housing 24, then in the transverse bore of the pump housing 6 recorded and by means of the provided on the outer housing 24 Bores 28 to be screw fastened.
  • auxiliary magnet Inside the outer housing 24 there is a recess 29 open to the outside formed, which is accessible before assembly and another at the bottom Magnet 30 (auxiliary magnet) is fixed.
  • the auxiliary magnet also has a cylindrical one Shape and a north-south polarization along its cylinder axis.
  • the arrangement of the magnet 20 is selected so that the same poles face each other on the face, so that the magnet 20 is repelled by the magnet 30.
  • the outer housing 24 has a cavity which is open towards the channel 9 and which the lever arm 19 receives and adjacent the externally accessible recess 29 for the magnet and is otherwise in its shape to the outer contour adapted to the terminal box.
  • the recess 29 is only accessible when the terminal box 12 is removed or the pump housing 6 with the Guard housing 21 is removed from the motor housing 1.
  • the distance between Terminal box 11 and guard housing 21, in particular outer housing 24, is so chosen that on the one hand a free space is formed, but on the other hand the magnet 20 switches the reed relay 14 reliably.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
  • Control Of Non-Positive-Displacement Pumps (AREA)
EP00106498A 1999-03-31 2000-03-25 Ensemble de pompe centrifuge Expired - Lifetime EP1041595B2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19914581 1999-03-31
DE19914581A DE19914581A1 (de) 1999-03-31 1999-03-31 Kreiselpumpenaggregat

Publications (4)

Publication Number Publication Date
EP1041595A2 true EP1041595A2 (fr) 2000-10-04
EP1041595A3 EP1041595A3 (fr) 2002-02-13
EP1041595B1 EP1041595B1 (fr) 2004-10-13
EP1041595B2 EP1041595B2 (fr) 2011-08-31

Family

ID=7903058

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00106498A Expired - Lifetime EP1041595B2 (fr) 1999-03-31 2000-03-25 Ensemble de pompe centrifuge

Country Status (7)

Country Link
US (1) US6273684B1 (fr)
EP (1) EP1041595B2 (fr)
CN (1) CN1133012C (fr)
AR (1) AR022941A1 (fr)
DE (2) DE19914581A1 (fr)
HK (1) HK1031414A1 (fr)
TW (1) TW440656B (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1217217A1 (fr) 2000-12-22 2002-06-26 Grundfos a/s Installation d'alimentation d'eau
EP2808547A1 (fr) * 2013-05-31 2014-12-03 Grundfos Holding A/S Dispositif d'actionnement pour un module de pompe

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10053248A1 (de) * 2000-10-26 2002-05-08 Kaercher Gmbh & Co Alfred Hochdruckreinigungsgerät
DE102004048557A1 (de) * 2004-10-04 2006-04-06 Aweco Appliance Systems Gmbh & Co. Kg Flüssigkeitspumpe
MX2009002152A (es) * 2006-08-25 2009-03-16 Pentair Pump Group Inc Sistema de fluido con dispositivo de activacion de bomba.
US8152458B2 (en) * 2009-04-28 2012-04-10 Mp Pumps, Inc. Centrifugal pump with improved drive shaft and heat exchanger
EP2639943B1 (fr) * 2012-03-15 2015-02-25 Grundfos Holding A/S Moteur électrique
US10385859B2 (en) 2013-12-10 2019-08-20 Franklin Electric Company, Inc. In-line pressure boosting system and method
DE102015119832A1 (de) 2015-11-17 2017-05-18 Xylem Ip Management Sàrl Förderpumpe zur Druckerhöhung in einer Leitung und Verfahren zum Betreiben einer Förderpumpe

Family Cites Families (26)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH499018A (de) * 1968-09-03 1970-11-15 Troesch Hans A Dr Ing Umwälzpumpe für Heizungsanlagen
US3819297A (en) * 1972-09-11 1974-06-25 Gen Gas Light Co Centrifugal pump assembly
US3992598A (en) * 1974-12-04 1976-11-16 Afton Incorporated Airflow velocity switch
US4085336A (en) * 1976-08-09 1978-04-18 Paul F. Walters Liquid flow activated switch
GB1545447A (en) † 1977-11-05 1979-05-10 Pektron Ltd Arrangement for dispensing liquids
US4213745A (en) * 1978-09-11 1980-07-22 Roberts Samuel A Pump for central heating system
US4499347A (en) † 1982-01-25 1985-02-12 Richards Gary H Fluid-flow-control-switch valve
DE3210762A1 (de) * 1982-03-24 1983-10-13 Grundfos A/S, 8850 Bjerringbro Pumpenaggregat fuer heizungs- und brauchwasseranlagen
DE3220448C1 (de) * 1982-05-29 1983-08-11 Grundfos A/S, 8850 Bjerringbro Pumpenaggregat fuer Heizungs- und Brauchwasseranlagen
GB8506527D0 (en) † 1985-03-13 1985-04-17 Brightplan Ltd Fluid supply device
DE3701562C2 (de) * 1986-03-12 1996-02-08 Wilo Gmbh Kreiselpumpe mit Spaltrohrmotor
JPH081537B2 (ja) 1986-05-31 1996-01-10 大日本印刷株式会社 カード及びその情報読み取り方法
GB8616106D0 (en) † 1986-07-02 1986-08-06 Pektron Ltd Liquid dispensing arrangement
US4818177A (en) * 1986-12-10 1989-04-04 Dresser Industries, Inc. Centrifugal pump with integral suction valve
US4924069A (en) * 1987-11-19 1990-05-08 Teledyne Industries, Inc. Hot water supply for tubs
US4791254A (en) * 1987-12-09 1988-12-13 Hydrolevel Company Flow switch
JPH03175195A (ja) * 1989-09-26 1991-07-30 Ebara Corp 水中ポンプ
GB2238664B (en) * 1989-12-02 1994-06-22 Powered Showers Plc Flow switch assembly
GB2247920B (en) † 1990-08-28 1994-07-27 Whitbread And Company Public L A pump controller
DE4201100A1 (de) * 1992-01-17 1993-07-22 Klein Schanzlin & Becker Ag Einrichtung zur regelung des foerderstroms einer kreiselpumpe in geschlossenem rohrnetz
US5183983A (en) * 1992-03-20 1993-02-02 Dwyer Instruments, Inc. Flow switch assembly for fluid flow monitoring
US5624245A (en) * 1994-10-26 1997-04-29 Mp Pumps, Inc. Centrufugal pump with thermally isolated and dynamically air cooled shaft seal assembly
DE29503806U1 (de) * 1995-03-06 1996-07-04 Sihi GmbH & Co KG, 25524 Itzehoe Pumpe zur Förderung heißer Medien
US5737041A (en) * 1995-07-31 1998-04-07 Image Quest Technologies, Inc. TFT, method of making and matrix displays incorporating the TFT
JP3144326B2 (ja) * 1996-12-17 2001-03-12 松下電器産業株式会社 電気湯沸かし器
JPH1116491A (ja) * 1997-06-26 1999-01-22 Dainippon Printing Co Ltd プラズマディスプレイパネル用厚膜パターンの形成方法

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1217217A1 (fr) 2000-12-22 2002-06-26 Grundfos a/s Installation d'alimentation d'eau
EP2808547A1 (fr) * 2013-05-31 2014-12-03 Grundfos Holding A/S Dispositif d'actionnement pour un module de pompe
WO2014191169A3 (fr) * 2013-05-31 2015-06-18 Grundfos Holding A/S Dispositif d'actionnement pour un groupe pompe
US10294996B2 (en) 2013-05-31 2019-05-21 Grundfos Holding A/S Actuating device for a pump unit

Also Published As

Publication number Publication date
DE50008180D1 (de) 2004-11-18
AR022941A1 (es) 2002-09-04
CN1270280A (zh) 2000-10-18
CN1133012C (zh) 2003-12-31
EP1041595A3 (fr) 2002-02-13
EP1041595B1 (fr) 2004-10-13
EP1041595B2 (fr) 2011-08-31
HK1031414A1 (en) 2001-06-15
TW440656B (en) 2001-06-16
US6273684B1 (en) 2001-08-14
DE19914581A1 (de) 2000-10-12

Similar Documents

Publication Publication Date Title
DE69106693T2 (de) Windschutzscheiben-waschpumpe mit füllstandssensorvorrichtung.
EP1041595B1 (fr) Ensemble de pompe centrifuge
EP2908409B1 (fr) Moteur électrique de groupe auxiliaire de véhicule automobile
DE19907561B4 (de) Elektrisch betriebene Pumpenvorrichtung mit verbesserter Luftkanalkonstuktion
DE3509225C2 (fr)
DE102006058837C5 (de) Schmiermittelgedichtete Drehschiebervakuumpumpe
DE19914579C2 (de) Kreiselpumpenaggregat
WO2018073008A1 (fr) Pompe à carburant
DE3726979A1 (de) Hydraulikeinheit fuer ein kraftfahrzeug
DE19629136A1 (de) Steuereinrichtung für eine Förder-Pumpe o. dgl.
EP0918197B2 (fr) Ensemble pour installation de chauffage compact
DE3150033A1 (de) Vakuumpumpe mit einem saugstutzen-ventil und betriebsverfahren dafuer
DE10009376A1 (de) Saugseitiger Rotor
DE19916953A1 (de) Vorrichtung zum Anzeigen und/oder Kontrollieren von Fluiden
EP1217217B1 (fr) Installation d'alimentation d'eau
DE3524615A1 (de) Hydraulikeinheit zum betaetigen einer differentialsperre fuer ein kraftfahrzeug
EP1343645B1 (fr) Appareil de chauffage automobile comportant une pompe de recirculation de caloporteur integree
EP2039937A2 (fr) Module de pompe destiné au transport de liquides
DE4013730A1 (de) Pumpe fuer fluessigkeiten
DE3909592C2 (de) Flüssigkeitsbehälter mit einer Flüssigkeitspumpe und einem Niveaugeber
EP0578017A1 (fr) Valve d'injection pour un dispositif de moulage de cire par injection sous vide
EP1312803B1 (fr) Pompe automatique
DE102004058591A1 (de) Umwälzpumpe und Verfahren zur Herstellung einer Umwälzpumpe
DE3128995A1 (de) Anlage zum betanken von kraftfahrzeugen mit fluessigen, insbesondere kryogenen treibstoffen
DE19802227A1 (de) Tauchpumpe

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

Kind code of ref document: A2

Designated state(s): DE FR GB IT

AX Request for extension of the european patent

Free format text: AL;LT;LV;MK;RO;SI

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

AX Request for extension of the european patent

Free format text: AL;LT;LV;MK;RO;SI

RIC1 Information provided on ipc code assigned before grant

Free format text: 7H 01H 37/40 A, 7H 01H 35/40 B

17P Request for examination filed

Effective date: 20020709

17Q First examination report despatched

Effective date: 20020829

AKX Designation fees paid

Free format text: DE FR GB IT

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): DE FR GB IT

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: IE

Ref legal event code: FG4D

Free format text: GERMAN

REF Corresponds to:

Ref document number: 50008180

Country of ref document: DE

Date of ref document: 20041118

Kind code of ref document: P

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

Effective date: 20050124

REG Reference to a national code

Ref country code: IE

Ref legal event code: FD4D

PLBI Opposition filed

Free format text: ORIGINAL CODE: 0009260

PLAX Notice of opposition and request to file observation + time limit sent

Free format text: ORIGINAL CODE: EPIDOSNOBS2

26 Opposition filed

Opponent name: WILO AG

Effective date: 20050711

ET Fr: translation filed
PLAF Information modified related to communication of a notice of opposition and request to file observations + time limit

Free format text: ORIGINAL CODE: EPIDOSCOBS2

PLBB Reply of patent proprietor to notice(s) of opposition received

Free format text: ORIGINAL CODE: EPIDOSNOBS3

APBP Date of receipt of notice of appeal recorded

Free format text: ORIGINAL CODE: EPIDOSNNOA2O

APAH Appeal reference modified

Free format text: ORIGINAL CODE: EPIDOSCREFNO

APBP Date of receipt of notice of appeal recorded

Free format text: ORIGINAL CODE: EPIDOSNNOA2O

APBQ Date of receipt of statement of grounds of appeal recorded

Free format text: ORIGINAL CODE: EPIDOSNNOA3O

APBQ Date of receipt of statement of grounds of appeal recorded

Free format text: ORIGINAL CODE: EPIDOSNNOA3O

APBU Appeal procedure closed

Free format text: ORIGINAL CODE: EPIDOSNNOA9O

PUAH Patent maintained in amended form

Free format text: ORIGINAL CODE: 0009272

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

Free format text: STATUS: PATENT MAINTAINED AS AMENDED

27A Patent maintained in amended form

Effective date: 20110831

AK Designated contracting states

Kind code of ref document: B2

Designated state(s): DE FR GB IT

REG Reference to a national code

Ref country code: DE

Ref legal event code: R102

Ref document number: 50008180

Country of ref document: DE

REG Reference to a national code

Ref country code: DE

Ref legal event code: R102

Ref document number: 50008180

Country of ref document: DE

Effective date: 20110831

REG Reference to a national code

Ref country code: FR

Ref legal event code: PLFP

Year of fee payment: 17

REG Reference to a national code

Ref country code: FR

Ref legal event code: PLFP

Year of fee payment: 18

REG Reference to a national code

Ref country code: FR

Ref legal event code: PLFP

Year of fee payment: 19

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

Ref country code: GB

Payment date: 20190325

Year of fee payment: 20

Ref country code: IT

Payment date: 20190321

Year of fee payment: 20

Ref country code: FR

Payment date: 20190326

Year of fee payment: 20

Ref country code: DE

Payment date: 20190326

Year of fee payment: 20

REG Reference to a national code

Ref country code: DE

Ref legal event code: R071

Ref document number: 50008180

Country of ref document: DE

REG Reference to a national code

Ref country code: GB

Ref legal event code: PE20

Expiry date: 20200324

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 EXPIRATION OF PROTECTION

Effective date: 20200324