EP0905453B2 - Réchauffeur d'eau chaude sanitaire - Google Patents

Réchauffeur d'eau chaude sanitaire Download PDF

Info

Publication number
EP0905453B2
EP0905453B2 EP98110530A EP98110530A EP0905453B2 EP 0905453 B2 EP0905453 B2 EP 0905453B2 EP 98110530 A EP98110530 A EP 98110530A EP 98110530 A EP98110530 A EP 98110530A EP 0905453 B2 EP0905453 B2 EP 0905453B2
Authority
EP
European Patent Office
Prior art keywords
water
heat exchanger
service
secondary heat
hot water
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.)
Expired - Lifetime
Application number
EP98110530A
Other languages
German (de)
English (en)
Other versions
EP0905453A3 (fr
EP0905453A2 (fr
EP0905453B1 (fr
Inventor
Albin Kehl
Manfred Oehrlein
Uwe Lindemann
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.)
Robert Bosch GmbH
Original Assignee
Robert Bosch GmbH
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=7843430&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0905453(B2) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Robert Bosch GmbH filed Critical Robert Bosch GmbH
Publication of EP0905453A2 publication Critical patent/EP0905453A2/fr
Publication of EP0905453A3 publication Critical patent/EP0905453A3/fr
Application granted granted Critical
Publication of EP0905453B1 publication Critical patent/EP0905453B1/fr
Publication of EP0905453B2 publication Critical patent/EP0905453B2/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
    • F24D3/00—Hot-water central heating systems
    • F24D3/08—Hot-water central heating systems in combination with systems for domestic hot-water supply
    • F24D3/087—Tap water heat exchangers specially adapted therefore
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
    • F24H1/00—Water heaters, e.g. boilers, continuous-flow heaters or water-storage heaters
    • F24H1/48—Water heaters for central heating incorporating heaters for domestic water
    • F24H1/52—Water heaters for central heating incorporating heaters for domestic water incorporating heat exchangers for domestic water
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D9/00—Heat-exchange apparatus having stationary plate-like or laminated conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall
    • F28D9/0031—Heat-exchange apparatus having stationary plate-like or laminated conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits for one heat-exchange medium being formed by paired plates touching each other
    • F28D9/0043—Heat-exchange apparatus having stationary plate-like or laminated conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits for one heat-exchange medium being formed by paired plates touching each other the plates having openings therein for circulation of at least one heat-exchange medium from one conduit to another
    • F28D9/005—Heat-exchange apparatus having stationary plate-like or laminated conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits for one heat-exchange medium being formed by paired plates touching each other the plates having openings therein for circulation of at least one heat-exchange medium from one conduit to another the plates having openings therein for both heat-exchange media
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D9/00—Heat-exchange apparatus having stationary plate-like or laminated conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall
    • F28D9/0093—Multi-circuit heat-exchangers, e.g. integrating different heat exchange sections in the same unit or heat-exchangers for more than two fluids

Definitions

  • the invention is based on a domestic water heater according to the preamble of the main claim as DE-A-4027965.
  • Water heaters of this kind as they are e.g. are installed in heaters of central heating systems, characterized by an increased domestic hot water, because when tap of hot water immediately hot water is available.
  • a hot water tank is formed as a separate unit, which is connected via pipes to the secondary heat exchanger. This design takes up relatively much installation space, which is only scarce in heaters of the above type. Because of the pipe connections, the thermal contact between the hot water tank and secondary heat exchanger is limited and the arrangement of a separate hot water tank is also relatively expensive.
  • the arrangement according to the invention with the features of the main claim provides a compact and space-saving assembly in which the thermal contact between the storage volume and the secondary heat exchanger is significantly improved and the connection and heat transfer elements are functionally integrated into the heat exchanger plates. This also results in a significant cost savings compared to a separate hot water tank, which must be consuming connected to the secondary heat exchanger.
  • the cooling losses of the hot water tank can be reduced if this is in the course of the hot water line, because the temperature of stored hot water can be kept lower than the temperature of stored hot water.
  • the desire for the most compact design is met, although the hot water tank is designed in panel construction. As a result, a particularly close thermal connection of the hot water tank to the secondary heat exchanger is possible.
  • the hot water tank can be attached to save space on the secondary heat exchanger.
  • the hot water storage is designed as a basic body of the unit formed secondary heat exchanger enclosing. This results in large contact surfaces between the two modules and the further advantage that the waste heat of the secondary heat exchanger to the ambient air, due to the static storage volume, is lower than in a one-sided cultivation of the hot water tank to the plate stack of the secondary heat exchanger.
  • a particularly close contact between hot water tank and secondary heat exchanger results when the storage volume of the hot water tank is integrated into the secondary heat exchanger.
  • a "shooting" of the service or heating water through the hot water tank is avoided when the hot water tank is divided into individual, successive sections, which are flowed through by the water in succession.
  • FIG. 1 shows a simplified representation of the basic construction common to all exemplary embodiments
  • FIGS. 2 to 4 each show a cross section through the first, second and third exemplary embodiments
  • FIG. 5 enlarges a detail from FIG. 4
  • FIG. 6 shows the bottom view of a fourth exemplary embodiment
  • FIGS and FIG. 8 each show a cross section through the fifth and sixth embodiments.
  • All embodiments have a heated by a heat source 10 primary heat exchanger 11 in a heating water network 12, which leads via a circulation pump 13 and a secondary heat exchanger and a hot water tank assembly 14 which transfers heat from the heating water to the water in a service water pipe 15.
  • the hot water tank is in close thermal contact with the plate-type secondary heat exchanger and may be provided both for the storage of service water, as well as heating water, or both.
  • a secondary heat exchanger 18 is formed by a stack of plates 19 which are connected at their established edges 20 tightly together and limit changing channels a for heating water and channels b for hot water.
  • the channels a and b are each connected in parallel via passages 21, 22 interconnected by appropriate shaping the plates 19 formed and sealed against the intermediate, the other fluid leading channels.
  • a connecting piece 23 is fixed for the one strand of Edelwassernetzes 12, which leads into the passages 21.
  • a second group of the channels a connecting passages and a corresponding connecting piece for the other strand of Edelwassernetzes 12 is arranged.
  • the incoming strand of the service water pipe 15 is guided in a hot water tank 25, which is placed on the secondary heat exchanger 18 and forms a structural unit with this.
  • a connecting piece 26 on the secondary heat exchanger 18 and a pipe 27 are provided, which is guided through the passages 22 in the hot water tank 25.
  • the tube 27 extends therein to a point 28, which is remote from the group of passages 22, the uppermost opens directly into the hot water tank 25.
  • a second group of passages connecting the channels b and a corresponding connecting piece for the further strand of the service water line 15 is arranged.
  • the process water reservoir 25 is in close thermal contact with the plate 19 of the secondary heat exchanger 18 over a large area, which limits the upper heating water channel a.
  • the flow in the hot water tank 25 is inevitably passed along this plate 19 and the output of the hot water tank 25 opens by the shortest route, i. directly into the group of service water channels b.
  • the storage volume is heated by the already existing heat exchanger function, so that an additional heat exchanger for the hot water tank is eliminated.
  • the hot water tank sits even lower in the plate stack of the secondary heat exchanger, so that it is washed by both the heating water and the hot water in the secondary heat exchanger.
  • a secondary heat exchanger 30 forms a base body, which is covered by a hot water tank 31 also designed in plate construction.
  • the secondary heat exchanger 30 is connected at the bottom with connecting pieces for the heating network 12, one of which, 32, lies in the plane of the drawing and the other, not visible in the drawing, is arranged away from it.
  • the internal structure of the secondary heat exchanger 30 is consistent with that of Figure 2, so that will not be discussed.
  • the hot water tank 31 is connected to a connecting piece 33 for the incoming strand of the service water pipe 15, which opens into an annular chamber 34, over which two more annular chambers 35, 36 are arranged.
  • the annular chambers 34, 35, 36 are bounded by plates 37, 38, 39, 40, which are integrally connected to the plates of the secondary heat exchanger 30. This provides excellent thermal contact between the two assemblies.
  • the annular chamber 34 is connected to the annular chamber 35 via a non-visible in the drawing opening in the plate 38, which faces the connecting piece 33 approximately diagonally.
  • the annular chamber 35 is connected via an opening 41 in the plate 39 with the annular chamber 36, which is arranged approximately coaxially with the connecting piece 33.
  • the annular chamber 40 is connected via a fixed to the plate 39 and passed through the other plates 38, 37 tube 42 with a chamber 43 which is formed between the lower plate 37 and a hood 44 attached thereto.
  • the hood 44 extends into the region of the secondary heat exchanger 30 and engages there via an opening 45 arranged in the plate 37, via which the inflowing process water enters the process water channels b.
  • the staggered arrangement of the passages from one chamber of the hot water tank 31 to the other results in a series connection of the chambers, whereby a "shooting through” the water avoided by the memory and the hot water in each chamber flows around the plate stack of the secondary heat exchanger 30 on both sides.
  • At the bottom of the secondary heat exchanger 30 is not visible in the drawing connecting piece for the continuing strand of the service water pipe 15 is disposed away from the opening 45.
  • the alternative solution shown in Figure 6 for the embodiment of Figure 4 has a base body, a secondary heat exchanger 50, which is enclosed by a Walkerigan agenda 51.
  • a secondary heat exchanger 50 At the bottom of the secondary heat exchanger 50 is provided with connections 52, 53 for the hot water line 15 and a connection 54 for the heating network 12.
  • the internal structure of the secondary heat exchanger 50 and the hot water tank 31 corresponds to the embodiment of Figure 4.
  • the Edelwasser agenda 51 has a connection 55 for the second strand of the heating network 12, which opens into the lower annular chamber 34. This is connected via an opening 56 in the plate covering it with the overlying annular chamber 35, from which an approximately coaxial with the terminal 55 arranged opening leads into the third annular chamber 36.
  • a channel corresponding to the tube 42 of Figure 4 57 is provided, which leads from the third annular chamber 36 to the underside of Edelwasser addresses 51.
  • the channel 57 is connected by a hood 58 with an opening 59 in the bottom plate of the secondary heat exchanger 50, which forms the entrance to its Schuwassungskanälen.
  • the particular feature of the embodiment of Figure 6 is that between the connecting piece 50 and the underlying, the annular chambers 35 and 36 connecting opening on the one hand and the leading of the annular chamber 34 into the annular chamber 35 opening 56 on the other hand, a partition 60 is provided, all the annular chambers interspersed and formed for example by appropriate embossing of the plates.
  • the partition wall 60 forces in each annular chamber an indicated by the dashed line 61 ring flow of the heating water, which runs in the annular chambers 34 and 36 in the clockwise direction and in the annular chamber 35 in the counterclockwise direction. As a result, a particularly intensive heat exchange between the heating water and the service water is achieved.
  • two storage spaces 65 and 66 are integrated for service water in the interior of a secondary heat exchanger, which is supplied to a connection piece 67, the storage spaces 65, 66 successively passes and then passes into the parallel connected hot water channels b of the secondary heat exchanger.
  • the service water flows through a not visible in the drawing, lying behind the connecting piece 67 connecting piece in the continuing strand of the service water pipe 15 from.
  • the connections for the heating water and the inner connections of the parallel heating water channels are omitted in the drawing for the sake of simplicity.
  • the arrangement could also be made so that the storage spaces 65, 66 are in the course of Bankbitnetzes and that protrude as in Figure 4 individual plates with tongues in the storage spaces 65, 66.
  • the embodiment of Figure 8 has a secondary heat exchanger 70, on which a hot water tank 71 is placed, which is also designed in plate construction and contains both Bankbergkanäle a and hot water channels b.
  • the hot water channels b are connected in parallel in the hot water tank 71 in series and in the secondary heat exchanger 70.
  • the Schubergkanäle a are connected in parallel in both modules 70, 71.
  • the channels a, b in the hot water tank 71 are internally connected to the channels a, b in the secondary heat exchanger 70, so that in this case special means and measures for this are not needed.
  • the hot water tank 71 has a connecting piece 72 for the incoming strand of the service water pipe 15 and a connecting piece 73 for the heating network 12.
  • the secondary heat exchanger 70 is provided with a connecting piece 74 for the heating network 12 and a connection 75 for the continuing strand of the hot water line 15.
  • the embodiment of Figure 8 is characterized by a particularly rapid thermal coupling of the memory to the secondary heat exchanger.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Thermal Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Water Supply & Treatment (AREA)
  • Heat-Pump Type And Storage Water Heaters (AREA)
  • Steam Or Hot-Water Central Heating Systems (AREA)
  • Thermally Insulated Containers For Foods (AREA)
  • Cookers (AREA)
  • Resistance Heating (AREA)

Claims (7)

  1. Chauffe-eau sanitaire comportant un échangeur de chaleur primaire chauffé par une source de chaleur dans un réseau d'eau de chauffage passant dans un échangeur de chaleur secondaire, à construction en forme de plaques, qui couple une conduite d'eau sanitaire, thermiquement au réseau d'eau de chauffage, ainsi qu'un accumulateur d'eau chaude qui lors d'une demande d'eau chaude sanitaire compense la perte de temps créée par le réchauffage dans l'échangeur de chaleur primaire,
    caractérisé en ce que
    l'accumulateur d'eau chaude (31, 71) a également une construction en forme de plaques, et
    l'accumulateur d'eau chaude sanitaire (35, 31, 51, 65, 66, 71) est en contact thermique étroit avec les plaques (19) de l'échangeur de chaleur secondaire (18, 30, 50, 64, 70) et forme avec celui-ci un ensemble de construction.
  2. Chauffe-eau sanitaire selon la revendication 1,
    caractérisé en ce que
    l'accumulateur d'eau chaude (25, 31, 65, 66) se situe dans la ligne d'aller de la conduite d'eau sanitaire.
  3. Chauffe-eau sanitaire selon les revendications 1 ou 2,
    caractérisé en ce que
    l'accumulateur d'eau chaude (25, 71) est appliqué sur l'échangeur de chaleur secondaire (18, 70).
  4. Chauffe-eau sanitaire selon la revendication 3,
    caractérisé en ce que
    l'accumulateur d'eau chaude sanitaire (31, 51) entoure l'échangeur de chaleur secondaire (30, 50) réalisé comme corps de base de l'ensemble (14).
  5. Chauffe-eau sanitaire selon l'une des revendications 1 ou 2,
    caractérisé en ce que
    le volume de stockage de l'accumulateur d'eau sanitaire (65, 66) est intégré à l'échangeur de chaleur secondaire (64).
  6. Chauffe-eau sanitaire selon la revendication 1,
    caractérisé en ce que
    l'accumulateur d'eau sanitaire se situe dans la ligne d'aller d'eau de chauffage et l'interface entre l'accumulateur et l'échangeur de chaleur est reliée à un branchement pour le réseau de chauffage.
  7. Chauffe-eau sanitaire selon la revendication 1,
    caractérisé en ce que
    l'accumulateur d'eau chaude (31, 65, 66, 71) est subdivisé en différentes zones les unes derrière les autres et que l'eau traverse successivement.
EP98110530A 1997-09-24 1998-06-09 Réchauffeur d'eau chaude sanitaire Expired - Lifetime EP0905453B2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19742075 1997-09-24
DE19742075A DE19742075A1 (de) 1997-09-24 1997-09-24 Brauchwasserbereiter

Publications (4)

Publication Number Publication Date
EP0905453A2 EP0905453A2 (fr) 1999-03-31
EP0905453A3 EP0905453A3 (fr) 2001-04-11
EP0905453B1 EP0905453B1 (fr) 2003-06-18
EP0905453B2 true EP0905453B2 (fr) 2006-03-01

Family

ID=7843430

Family Applications (1)

Application Number Title Priority Date Filing Date
EP98110530A Expired - Lifetime EP0905453B2 (fr) 1997-09-24 1998-06-09 Réchauffeur d'eau chaude sanitaire

Country Status (3)

Country Link
EP (1) EP0905453B2 (fr)
AT (1) ATE243306T1 (fr)
DE (2) DE19742075A1 (fr)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE518211C2 (sv) † 1999-12-15 2002-09-10 Swep Int Ab Varmvattenberedare omfattande en plattvärmeväxlare och en lagringsbehållare
SE515467C2 (sv) * 1999-12-23 2001-08-13 Alfa Laval Ab Plattvärmeväxlare med minst en platta försedd med ett trågformat parti för bildande av ett avtätat utrymme.
SE518190C2 (sv) * 2000-02-01 2002-09-10 Alfa Laval Ab Beredare innefattande minst en tank med minst ett utrymme och minst en plattvärmeväxlare
ITTO20040846A1 (it) * 2004-12-01 2005-03-01 Cosmogas Srl Scambiatore di calore per una caldaia di tipo combinato, e caldaia di tipo combinato impiegante tale scambiatore di calore
EP1703213A1 (fr) * 2005-02-07 2006-09-20 Robert Bosch Gmbh Chauffe-eau sanitaire
EP1850082A1 (fr) * 2006-04-24 2007-10-31 Sundsvall Energi AB Echangeur de chaleur

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2214711C3 (de) * 1972-03-25 1979-08-23 Egon 8222 Ruhpolding Laforce Brauchwasserbereiter
AT400080B (de) * 1989-09-14 1995-09-25 Austria Email Waermetech Gmbh Warmwasserbereitungsanlage
AT400362B (de) * 1991-11-04 1995-12-27 Vaillant Gmbh Heizgerät mit einem von einer wärmequelle beaufschlagten wärmetauscher
GB2262593B (en) * 1991-12-17 1995-04-12 Inter Albion Ltd An apparatus for and a method of providing hot sanitary water
FR2742214B1 (fr) * 1995-12-08 1999-08-20 Chaffoteaux Et Maury Appareils generateurs d'eau chaude sanitaire et d'eau de chauffage central

Also Published As

Publication number Publication date
DE59808742D1 (de) 2003-07-24
EP0905453A3 (fr) 2001-04-11
DE19742075A1 (de) 1999-03-25
ATE243306T1 (de) 2003-07-15
EP0905453A2 (fr) 1999-03-31
EP0905453B1 (fr) 2003-06-18

Similar Documents

Publication Publication Date Title
EP0653043B1 (fr) Echangeur de chaleur
EP0828980B1 (fr) Echangeur de chaleur
EP0911156B1 (fr) Arrangement pour tempérer dans une machine d'impression
EP3119623A1 (fr) Module de chauffage et de refroidissement
DE3630084C2 (fr)
DE3319521A1 (de) Waermeaustauscher fuer fluessige medien
EP1637020B1 (fr) Installation de refroidissement pour armoire de distribution
EP0905453B2 (fr) Réchauffeur d'eau chaude sanitaire
EP3371540A1 (fr) Module échangeur thermique
EP1456591B1 (fr) Dispositif de transmission de chaleur
EP0592788B1 (fr) Manifold avec découpleur hydraulique
DE19509654A1 (de) Wärmetauschereinheit
DE19547928A1 (de) Plattenwärmetauscher
DE4105232C1 (fr)
DE4308626C1 (de) Mehrfachverteiler für fluidische Koaxialleitungen
EP0057850B1 (fr) Echangeur de chaleur pour liquides
DE3509674A1 (de) Kondensatheizkessel
DE10007574A1 (de) Verfahren zur Wärmeübertragung zwischen mindestens drei Wärmeträgermedien und Vorrichtungen zur Realisierung dieses Verfahrens
DE202005007941U1 (de) Geregelter Zwei-Zonen-Pufferspeicher für frische Trinkwassererwärmung
DE102004020602A1 (de) Plattenwärmetauscher mit Strömungswegen für drei Wärmetauschfluide
EP1147343A1 (fr) Chauffe-eau a accumulation
DE19628708B4 (de) Wasserheizanlage
AT410713B (de) Wasserheizanlage
DE19910829B4 (de) Mehrkreiswärmetauscher
DE19538601A1 (de) Fernwärmeanschlußstation für Heizung und Warmwasserbereitung

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 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

17P Request for examination filed

Effective date: 20011011

AKX Designation fees paid

Free format text: AT DE FR GB IT

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

Designated state(s): AT DE FR GB IT

REG Reference to a national code

Ref country code: GB

Ref legal event code: FG4D

Free format text: NOT ENGLISH

REF Corresponds to:

Ref document number: 59808742

Country of ref document: DE

Date of ref document: 20030724

Kind code of ref document: P

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

Effective date: 20031027

ET Fr: translation filed
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: VAILLANT GMBH

Effective date: 20040315

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

Free format text: ORIGINAL CODE: EPIDOSNOBS3

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: 20060301

AK Designated contracting states

Kind code of ref document: B2

Designated state(s): AT DE FR GB IT

GBTA Gb: translation of amended ep patent filed (gb section 77(6)(b)/1977)

Effective date: 20060510

ET3 Fr: translation filed ** decision concerning opposition
PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: AT

Payment date: 20110620

Year of fee payment: 14

REG Reference to a national code

Ref country code: AT

Ref legal event code: MM01

Ref document number: 243306

Country of ref document: AT

Kind code of ref document: T

Effective date: 20120609

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

Ref country code: AT

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

Effective date: 20120609

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

Ref country code: GB

Payment date: 20130620

Year of fee payment: 16

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

Ref country code: FR

Payment date: 20130703

Year of fee payment: 16

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

Ref country code: DE

Payment date: 20130828

Year of fee payment: 16

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

Ref country code: IT

Payment date: 20130622

Year of fee payment: 16

REG Reference to a national code

Ref country code: DE

Ref legal event code: R119

Ref document number: 59808742

Country of ref document: DE

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

Effective date: 20140609

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

Effective date: 20150227

REG Reference to a national code

Ref country code: DE

Ref legal event code: R119

Ref document number: 59808742

Country of ref document: DE

Effective date: 20150101

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: 20140609

Ref country code: DE

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

Effective date: 20150101

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: 20140609

Ref country code: FR

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

Effective date: 20140630