EP0038318B1 - Dispositif de réglage pour le réglage du chauffage d'eau sanitaire pour un ballon de stockage - Google Patents

Dispositif de réglage pour le réglage du chauffage d'eau sanitaire pour un ballon de stockage Download PDF

Info

Publication number
EP0038318B1
EP0038318B1 EP81890059A EP81890059A EP0038318B1 EP 0038318 B1 EP0038318 B1 EP 0038318B1 EP 81890059 A EP81890059 A EP 81890059A EP 81890059 A EP81890059 A EP 81890059A EP 0038318 B1 EP0038318 B1 EP 0038318B1
Authority
EP
European Patent Office
Prior art keywords
thermostat
water
temperature
heat exchanger
charging pump
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
Application number
EP81890059A
Other languages
German (de)
English (en)
Other versions
EP0038318B2 (fr
EP0038318A1 (fr
Inventor
Ferdinand Hartmann
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.)
Austria Email-EHT AG
Original Assignee
Austria Email-EHT 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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=25597256&utm_source=***_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0038318(B1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Priority claimed from AT0195180A external-priority patent/AT368621B/de
Priority claimed from AT0353780A external-priority patent/AT372179B/de
Application filed by Austria Email-EHT AG filed Critical Austria Email-EHT AG
Publication of EP0038318A1 publication Critical patent/EP0038318A1/fr
Application granted granted Critical
Publication of EP0038318B1 publication Critical patent/EP0038318B1/fr
Publication of EP0038318B2 publication Critical patent/EP0038318B2/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
    • F24D17/00—Domestic hot-water supply systems
    • F24D17/02—Domestic hot-water supply systems using heat pumps
    • 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
    • F24D19/00—Details
    • F24D19/10—Arrangement or mounting of control or safety devices
    • F24D19/1006—Arrangement or mounting of control or safety devices for water heating systems
    • F24D19/1066—Arrangement or mounting of control or safety devices for water heating systems for the combination of central heating and domestic hot water

Definitions

  • the invention relates to a temperature control device for the water in a water storage tank, which is heated using a heat exchanger equipped with a primary and a secondary circuit, arranged outside the storage tank and supplied with heat energy on the primary side by a heat source, the water to be heated being in the secondary circuit at the bottom of the storage tank removed and returned by a thermostatically controlled charge pump via the heat exchanger in the heated state on the cover side.
  • US-A-4 141 222 also describes a memory with a heat exchanger through which the coolant flows directly on the primary side.
  • a temperature-dependent three-way valve which forms a bypass to the heat exchanger, is arranged between the circulation pump arranged on the bottom and the entry of the water into the heat exchanger. bridging the latter from a predetermined temperature.
  • a temperature-controlled check valve is provided in the line from the heat exchanger to the cover of the storage tank, which prevents cold water from being fed to the storage tank.
  • FR-A-2 443 029 (published on June 27, 1980) describes a solar-heated storage tank which has an additional heater which is controlled by a thermostat in the upper area of the storage tank.
  • a second thermostat in the area of the bottom of the storage tank and a third thermostat at the solar collector control a circulating pump, which takes the water from the bottom and returns it on the cover side.
  • a complicated ventilation system and an expansion tank complete this solar system.
  • this is achieved in that a first thermostat in the store, preferably in the area of the center of the store, and a second thermostat connected in series with the first thermostat in the area between the cold water zone at the bottom of the store tank and the entry point of the secondary circuit into the Heat exchangers are arranged, wherein the first thermostat switches on the charging pump for the charging process, and the second thermostat switches off the charging pump to end the charging process, the first thermostat being closed at a predetermined lower hot water temperature and the second thermostat being open at a predetermined upper hot water temperature , so that the hot water to be heated is circulated only once, and that an actuator for adjusting or controlling the flow rate is provided in the secondary circuit.
  • the primary circuit is preferably connected to a heat pump, the heat transfer capacity of the heat exchanger being coordinated with the heat pump in such a way that the maximum amount of heat given off is transferred to the domestic water at the highest temperature.
  • the temperature control device in conjunction with the coordinated heat transfer capacity of the heat exchanger and the flow rate of the secondary circuit set by means of the throttle valve, ensures that the temperature of the cold service water drawn at the lowest possible point is increased to the maximum possible final temperature with a maximum of one pass of the service water to be heated.
  • the storage tank is loaded from above and the separating layer between hot and cold process water moves downwards until the storage tank is no longer charged. There is therefore no undesirable mixing of hot and cold water, as is the case with conventional turbulence due to convection.
  • the pressure-resistant storage container is denoted by 1 and preferably has the shape of a standing cylinder with a curved bottom 2 and a likewise curved lid 3.
  • a cold water supply pipe 4 leads into the bottom 2, the inner end of which lies opposite a baffle plate 5.
  • a distributor plate 7 is also located in the upper part of the storage container 1, near the cover 3.
  • the secondary circuit is constructed by the pipe sections 8a, 8b and 8c.
  • the pipe section 8a comes from the heat exchanger, generally designated 9, and opens into the cover 3.
  • the pipe section 8b extends from the base 2 to a charge pump 10, an adjustable throttle valve 11 and a thermal flow preventer 12, which prevents circulation without the charge pump running.
  • the pipe section 8c leads from the thermal flow preventer 12 back to the heat exchanger 9.
  • the thermostats T1 and T2 are provided in the secondary circuit, the thermostat T1 being arranged approximately in the center of the accumulator 1 and the thermostat T2 when the pipe section 8c enters the heat exchanger 9.
  • the primary circuit consists of a heat pump 13, a circulation pump 14, a priority valve (electromagnetically operable three-way valve) 15, which in the application case shown supplies the heater 16 outside the charging time of the water heater. Furthermore, the thermostat T3 is arranged in the primary circuit, specifically at the entry point of the primary circuit medium into the heat exchanger 9.
  • the heat transfer capacity of the heat exchanger 9 and the flow rate of the secondary circuit set by means of a throttle valve 11 now ensure a temperature increase in the cold service water drawn off at the lowest possible point and a temperature increase to the maximum possible final temperature with a single pass of the service water to be heated.
  • the store 1 is loaded from above and the separating layer between hot and cold process water moves downward until the store 1 has finished charging and the thermostat T2 breaks the circuit for the coil 18, so that the contacts 19, 20a and 20b break and thus the priority valve 15 is switched back to heating mode.
  • the heat pump can only be used for domestic water preparation or the primary circuit can be flowed through by an intermediate medium or coolant.
  • the thermostat T3 can be replaced by a time relay, i.e. the charge pump is switched on after the contacts 20a, 20b are closed after a predetermined time interval.
  • a heat pump for energy supply e.g. a central heating boiler or a solar system can also be used.
  • a central heating boiler or a solar system can also be used.
  • these heating systems too, the constant heat transfer performance throughout the entire charging process ensures a consistently high level of system efficiency.
  • An advantageous embodiment of the invention provides that the flow rate of the secondary circuit of the heat exchanger is regulated as a function of the outlet temperature of the water from the heat exchanger.
  • a device for this purpose contains in the secondary circuit an actuator for regulating the flow rate, which is regulated as a function of the outlet temperature of the water from the heat exchanger determined by means of an additional temperature sensor (FIGS. 2 and 3).
  • the flow rate can be controlled continuously or discontinuously, i.e. for example as a two-point control.
  • FIGS. 2 and 3 the elements that are the same as in FIG. 1 are provided with the same reference numerals, so that their description is unnecessary.
  • the pipe section 8b goes from the bottom 2 to a charge pump 10, an adjustable throttle valve 11. Parallel to the throttle valve 11, a solenoid valve 21 is in series with an additional throttle valve 22.
  • the pipe section 8c leads from the throttle valve 11 back to the heat exchanger 9.
  • a thermostat T4 is arranged as an additional temperature sensor when the secondary circuit emerges from the heat exchanger 9.
  • Fig. 3 shows the application of the invention in the combination of a heat pump 13 with a memory 1 for the production of hot water and a memory 1 'for heating water production, the elements associated with the memory 1' having the same reference numerals as for the memory 1, but with Apostrophe (') are provided.
  • a further contact 20c is provided in the relay of the control device 17, which interrupts the circuit for starting the charge pump 10 'as soon as the coil 18 of the relay is energized, so that the circuit for hot water generation is operated primarily.
  • the function of this arrangement is otherwise the same as that of the previous exemplary embodiment, so that its description is unnecessary.
  • the bypassing of the first throttle valve 11, 11 'in the secondary circuit by the solenoid valve 21, 21' or the combination of the solenoid valve 21, 21 'with the second throttle valve 22, 22' causes one Increasing the flow rate of the water through the heat exchangers 9, 9 ', so that an increased supply of heat from the heat pump causes the thermostats T4 or T4' to be switched on and can advantageously be used for faster filling of the store.
  • the actuator for regulating the flow rate can also be designed as a continuously adjustable valve, which e.g. is adjustable by a servomotor and also depending on the water temperature at the exit point of the secondary circuit from the heat exchanger, the z. B. measured by means of a thermocouple, the temperature corresponding voltage (actual value) is amplified and compared with a selectable setpoint, the differential voltage between the setpoint and actual value is supplied to the servomotor via a power amplifier.
  • the drive motor for the charge pump 10, 10 ' can also be controlled, i.e. act as an actuator, the flow rate being adapted to the respective heat supply by changing the number of revolutions depending on the above differential voltage.
  • the drive motor is connected to the output of the power amplifier.

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Heat-Pump Type And Storage Water Heaters (AREA)
  • Other Air-Conditioning Systems (AREA)

Claims (10)

1. Dispositif de régulation de température de l'eau dans un récipient d'accumulateur d'eau (1), qui est chauffé en utilisant un échangeur de chaleur (9) disposé en dehors du récipient d'accumulation et alimenté en énergie thermique du côté primaire par une source de chaleur, l'eau à chauffer étant soutirée dans le circuit secondaire près du fond du récipient d'accumulation et étant ramenée après chauffage du côté du couvercle après passage dans une pompe de circulation (10) à commande thermostatique et dans un échangeur de chaleur, caractérisé en ce qu'un premier thermostat (T1) dans l'accumulateur (1) est disposé, de préférence, dans la zone du milieu de l'accumulateur et qu'un second thermostat (T2) monté en série avec le premier thermostat (T1) est disposé dans la zone entre la couche d'eau froide près du fond du récipient d'accumulation (1) et l'endroit de l'entrée du circuit secondaire dans l'échangeur de chaleur (9), le premier thermostat (T1) enclenchant la pompe de circulation (10) pour le chauffage de l'accumulateur et le second thermostat (T2) déclenchant la pompe de circulation pour arrêter le processus de chauffage, le premier thermostat (T1) se fermant pour une température inférieure prédéterminée de l'eau sanitaire et le second thermostat (T2) s'ouvrant pour une température supérieure prédéterminée de l'eau sanitaire, si bien que l'eau sanitaire à chauffer ne circule qu'une fois dans le circuit et en ce qu'un élément de réglage est prévu dans le circuit secondaire pour régler ou ajuster le débit de passage.
2. Dispositif de régulation de température selon la revendication 1, caractérisé en ce qu'un troisième thermostat (T3) est disposé à l'entrée du circuit primaire dans l'échangeur de chaleur (9), celui-ci étant monté en série avec le circuit de la pompe de circulation (10) et permettant ainsi le processus d'enclenchement de la pompe de circulation (10) par le premier thermostat (T1), tandis que le troisième thermostat (T3) est fermé pour une température supérieure prédéterminée du fluide du circuit primaire.
3. Dispositif de régulation de température selon la revendication 1, caractérisé en ce qu'une vanne modératrice (11) est prévue en série avec la pompe de circulation (10) comme élément de réglage, le débit de passage dans le circuit secondaire étant réglé ou ajusté par la vanne modératrice en fonction de la puissance de transfert thermique de l'échangeur de chaleur (9), de manière à assurer une température finale maximale la plus élevée possible de l'eau à chauffer, après une seule circulation.
4. Dispositif de régulation de la température selon la revendication 1, caractérisé en ce que l'élément de réglage est réglé en fonction de la température de sortie de l'eau provenant de l'échangeur de chaleur (9) et déterminée au moyen d'un détecteur de température.
5. Dispositif selon la revendication 4, caractérisé en ce que l'élément de réglage comprend une vanne magnétique (21) qui est montée dans le circuit secondaire en parallèle avec une première vanne modératrice (11).
6. Dispostif selon la revendication 5, caractérisé en ce qu'une seconde vanne modératrice (22) est montée en série avec la vanne magnétique (21).
7. Dispositif selon les revendications 4 et 6, caractérisé en ce qu'un thermostat (T4) est prévu comme détecteur de température à la sortie du circuit secondaire de l'échangeur de chaleur (9), ce thermostat étant fermé au-dessus d'une température prédéterminée de l'eau de 50°C de préférence, et ouvrant ainsi la vanne magnétique (21) lorsque la pompe de fonctionnement est en service.
8. Dispositif selon la revendication 4, caractérisé en ce que l'élément de réglage est constitué par une vanne à réglage continu.
9. Dispositif selon la revendication 8, caractérisé en ce que la vanne à réglage continu peut être réglée par un servomoteur de réglage, un thermocouple étant prévu comme détecteur de température et sa tension étant amplifiée et comparée comme valeur réelle à une valeur de consigne pouvant être librement choisie, la différence entre les valeurs réelle et de consigne étant transmise par un amplificateur final au servomoteur de réglage de la vanne à réglage continu.
10. Dispositif selon les revendications 4 et 9, caractérisé en ce qu'une pompe de circulation (10, 10') est prévue comme élément de réglage, le moteur d'entraînement de la pompe de circulation étant raccordé à la sortie de l'amplificateur final.
EP81890059A 1980-04-10 1981-04-06 Dispositif de réglage pour le réglage du chauffage d'eau sanitaire pour un ballon de stockage Expired - Lifetime EP0038318B2 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
AT0195180A AT368621B (de) 1980-04-10 1980-04-10 Temperaturregeleinrichtung des wassers in einem wasserspeicherbehaelter
AT1951/80 1980-04-10
AT0353780A AT372179B (de) 1980-07-07 1980-07-07 Temperaturregeleinrichtung des wassers in einem wasserspeicherbehaelter
AT3537/80 1980-07-07

Publications (3)

Publication Number Publication Date
EP0038318A1 EP0038318A1 (fr) 1981-10-21
EP0038318B1 true EP0038318B1 (fr) 1985-03-20
EP0038318B2 EP0038318B2 (fr) 1990-01-17

Family

ID=25597256

Family Applications (1)

Application Number Title Priority Date Filing Date
EP81890059A Expired - Lifetime EP0038318B2 (fr) 1980-04-10 1981-04-06 Dispositif de réglage pour le réglage du chauffage d'eau sanitaire pour un ballon de stockage

Country Status (4)

Country Link
EP (1) EP0038318B2 (fr)
CA (1) CA1175026A (fr)
DE (1) DE3169328D1 (fr)
ES (1) ES501206A0 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3608868A1 (de) * 1986-03-17 1987-09-24 Stiebel Eltron Gmbh & Co Kg Aufladesteuerung eines waermepumpenbeheizten warmwasserspeichers
DE19706506B4 (de) * 1996-02-19 2005-07-28 Vaillant Gmbh Schichtenspeicheranordnung

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2521697A1 (fr) * 1982-02-17 1983-08-19 Cuenod Thermotech Sa Dispositif de production d'eau chaude mettant en oeuvre au moins une pompe a chaleur
EP0092864A3 (fr) * 1982-04-15 1984-01-18 I.R.E. Industrie Riunite Eurodomestici S.p.A. Système de pompe à chaleur pour la production d'eau chaude
DE3377664D1 (en) * 1982-07-02 1988-09-15 Carrier Corp Combined refrigerant circuit and hot water preheater, air conditioning system using same and section of such system including the combination
DE3311127C3 (de) * 1983-03-26 1994-02-24 Meyer Fa Rud Otto Verfahren zur Regelung von im Verbund geschalteten, mit einem Pufferspeicher verbundenen Wärmeerzeugern und Anordnung zur Durchführung des Verfahrens
SE464667B (sv) * 1988-08-22 1991-05-27 Thermia Ab Vaermepumpanlaeggning foer uppvaermning eller kylning av utrymmen samt uppvaermning av tappvarmvatten
AT400894B (de) * 1992-12-17 1996-04-25 Austria Email Waermetech Gmbh Warmwasserbereitungsanlage
DE19904937A1 (de) * 1999-02-06 2000-08-10 Univ Dresden Tech Verfahren und Anordnung zur Regelung der Warmwassertemperatur in Heizungsanlagen
ES2212862B2 (es) * 2000-12-28 2005-06-16 Jose Garcia Perez Medios de produccion instantanea de a.c.s. con estabilidad termica a la salida del intercambiador y para eliminacion de la contaminacion por agentes biologicos.
CN105569119A (zh) * 2016-01-10 2016-05-11 茹朝贵 一种新型热水器
CN105890168B (zh) * 2016-06-15 2018-11-06 新沂市时集建设发展有限公司 一种直热式热泵热水器机组
EP3529540A1 (fr) * 2016-10-20 2019-08-28 Herz Armaturen Ges.m.b.H. Dispositif pour réguler la température d'eau sanitaire

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1019792B (de) * 1953-11-27 1957-11-21 Bbc Brown Boveri & Cie Waermepumpenanlage mit Heisswasser-Druckspeicher
NO131902C (fr) * 1974-03-01 1975-08-20 Ctc Ab
DE2432893A1 (de) * 1974-07-09 1976-01-29 Robert Lamb Verfahren zum betrieb einer waermepumpenanlage und anlage zur durchfuehrung des verfahrens
US4142379A (en) * 1976-08-16 1979-03-06 Kuklinski Henry W Waste energy recovery system
US4141222A (en) * 1977-04-27 1979-02-27 Weatherking, Inc. Energy recovery system for refrigeration systems
FR2443029A1 (fr) * 1978-06-23 1980-06-27 Technip Cie Procede et installation de chauffage d'eau utilisant un capteur solaire

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3608868A1 (de) * 1986-03-17 1987-09-24 Stiebel Eltron Gmbh & Co Kg Aufladesteuerung eines waermepumpenbeheizten warmwasserspeichers
DE19706506B4 (de) * 1996-02-19 2005-07-28 Vaillant Gmbh Schichtenspeicheranordnung

Also Published As

Publication number Publication date
ES8204135A1 (es) 1982-04-01
DE3169328D1 (en) 1985-04-25
CA1175026A (fr) 1984-09-25
ES501206A0 (es) 1982-04-01
EP0038318B2 (fr) 1990-01-17
EP0038318A1 (fr) 1981-10-21

Similar Documents

Publication Publication Date Title
EP0038318B1 (fr) Dispositif de réglage pour le réglage du chauffage d'eau sanitaire pour un ballon de stockage
DE3235364A1 (de) Warmwasser-heizungsanlage
EP0807790B1 (fr) Méthode et système pour préparer de l'eau chaude sanitaire
DE2804748B1 (de) Waerme-isolierter Behaelter fuer warmes Wasser o.a. Fluessigkeiten
DE3917068C2 (fr)
DE1299393B (de) Warmwassererzeuger, insbesondere Heizwassererzeuger
DE1903774A1 (de) Vorrichtung zum Erhitzen fluessiger Medien
DE19504730C1 (de) Warmwasserbereitungsanlage nach dem Durchflußprinzip mit Leistungsbegrenzung
AT368621B (de) Temperaturregeleinrichtung des wassers in einem wasserspeicherbehaelter
EP0001826B1 (fr) Installation de chauffage à eau chaude
DE7010442U (de) Heizkessel zur erhitzung von wasser
EP0056100B1 (fr) Accumulateur d'eau chaude
AT373376B (de) Vorrichtung in verbindung mit einer temperaturregeleinrichtung des wassers in einem wasserspeicherbehaelter
AT414272B (de) Schichtenspeicher
DE3138803C2 (de) Aufheizregelung eines stehenden Brauchwasserspeichers und Vorrichtung zur Durchführung der Regelung
DE3938341C1 (fr)
CH655376A5 (de) Heizanlage zur warmwasserbereitung.
AT407095B (de) Warmwasserspeicher
AT397144B (de) Steuerung und steuerungsanlage zur erwärmung von brauchwasser
AT404183B (de) Einrichtung zur erzeugung von warmwasser in objekten mit zentraler wärmeversorgung
DE102011014907B4 (de) Verfahren zur Regelung eines Solarkreislaufs
EP0579933A1 (fr) Procédé pour le chauffage d'eau sanitaire et chauffé-eau pour la mise en oeuvre du procédé
EP0332606B1 (fr) Appareil pour chauffer l'eau sanitaire
DE581637C (de) Warmwasserumlaufheizung mit zwischen Vor- und Ruecklaufleitung eingeschaltetem Verdraengungswaermespeicher und Umlaufpumpe
AT400894B (de) Warmwasserbereitungsanlage

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

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

17P Request for examination filed

Effective date: 19820226

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

Owner name: AUSTRIA EMAIL-EHT AKTIENGESELLSCHAFT

ITF It: translation for a ep patent filed

Owner name: PATRITO BREVETTI

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

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

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

Ref country code: NL

Effective date: 19850320

Ref country code: FR

Free format text: THE PATENT HAS BEEN ANNULLED BY A DECISION OF A NATIONAL AUTHORITY

Effective date: 19850320

Ref country code: BE

Effective date: 19850320

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

Ref country code: SE

Effective date: 19850407

REF Corresponds to:

Ref document number: 3169328

Country of ref document: DE

Date of ref document: 19850425

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: 19850430

NLV1 Nl: lapsed or annulled due to failure to fulfill the requirements of art. 29p and 29m of the patents act
EN Fr: translation not filed
PLBI Opposition filed

Free format text: ORIGINAL CODE: 0009260

PLBI Opposition filed

Free format text: ORIGINAL CODE: 0009260

GBPC Gb: european patent ceased through non-payment of renewal fee
PLAB Opposition data, opponent's data or that of the opponent's representative modified

Free format text: ORIGINAL CODE: 0009299OPPO

PLBI Opposition filed

Free format text: ORIGINAL CODE: 0009260

26 Opposition filed

Opponent name: STIEBEL ELTRON GMBH & CO.KG

Effective date: 19851113

26 Opposition filed

Opponent name: EUROHEAT AB

Effective date: 19851220

26 Opposition filed

Opponent name: NOVA APPARATE GMBH

Effective date: 19851219

R26 Opposition filed (corrected)

Opponent name: STIEBEL ELTRON GMBH & CO.KG * 851220 EUROHEAT AB

Effective date: 19851113

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

Ref country code: GB

Effective date: 19881118

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: 19900117

AK Designated contracting states

Kind code of ref document: B2

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

EN3 Fr: translation not filed ** decision concerning opposition
PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: CH

Payment date: 19910726

Year of fee payment: 11

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

Ref country code: LI

Effective date: 19920430

Ref country code: CH

Effective date: 19920430

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

EUG Se: european patent has lapsed

Ref document number: 81890059.9

Effective date: 19860702

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

Ref country code: DE

Payment date: 19980319

Year of fee payment: 18

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: 20000201

APAH Appeal reference modified

Free format text: ORIGINAL CODE: EPIDOSCREFNO