EP0038318A1 - 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
EP0038318A1
EP0038318A1 EP81890059A EP81890059A EP0038318A1 EP 0038318 A1 EP0038318 A1 EP 0038318A1 EP 81890059 A EP81890059 A EP 81890059A EP 81890059 A EP81890059 A EP 81890059A EP 0038318 A1 EP0038318 A1 EP 0038318A1
Authority
EP
European Patent Office
Prior art keywords
thermostat
water
heat exchanger
secondary circuit
temperature
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
EP81890059A
Other languages
German (de)
English (en)
Other versions
EP0038318B2 (fr
EP0038318B1 (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=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0038318(A1) "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 control device for controlling the heating of process water for a storage tank using a separately arranged heat exchanger equipped with a primary and a secondary circuit, the water to be heated being removed in the secondary circuit from the bottom of the storage tank and by a thermostatically controlled charging pump via the heat exchanger in heated state is returned on the cover side.
  • a heat exchanger is attached to the inside, for example, in the lower half of a cylindrical, upright, and with appropriate thermal insulation storage tank, which is charged with the heating circuit - usually a central heating system.
  • the heating medium coming from the central heating boiler for example, emits part of the heat it contains to the water in the storage tank, which, due to convection, heats up evenly.
  • the higher the temperature of the water in the tank rises the higher the temperature of the water flowing back from the heat exchanger.
  • the arrangement is essentially the same as that described above, in which case the heat exchanger is connected to the heating circuit of the solar system.
  • a storage with a separate heat exchanger is known from DT-OS 25 08 135, which is connected on the primary side to a heating system.
  • a thermostatically controlled pump is provided on the secondary side, which takes the water to be heated from the storage tank at the bottom, passes it through the heat exchanger, and returns it to the storage tank at the top.
  • an electrical heater is provided in the heat exchanger, which enables additional heat supply and thus a certain adaptation to fluctuating operating conditions.
  • a combination of such a heat exchanger with a heat pump requires the use of expensive electrical energy and can therefore not be considered for economic reasons.
  • the aim of the invention is therefore to provide a control device of simple construction of the type specified at the outset, with intermittent operation of the heat pump to be avoided when using a heat pump.
  • a first thermostat is arranged in the store, preferably in the area of the center of the store and a second 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 exchanger, the first thermostat the charge pump turns on for charging, and the second thermostat turns off the charge pump to complete the charging, and wherein the first thermostat is closed at a predetermined lower hot water temperature and the second thermostat is open at a predetermined upper hot water temperature.
  • the primary circuit preferably contains a heat pump, the heat exchanger's heat transfer performance being matched to the heat pump in such a way that the maximum amount of heat given off is transferred to the process water at the highest temperature.
  • This secondary circuit is additionally preferably equipped with a throttle valve for setting or regulating the flow rate and a thermal flow preventer.
  • the control device ensures, 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, 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 memory is loaded from above and the interface between hot and cold process water migrates downwards until the storage tank has finished charging. There is therefore no undesired 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 bottom 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 for the control in the secondary circuit, the thermostat T1 are arranged approximately in the middle of the memory 1 and the thermostat T2 at the entry of the pipe section 8c into the heat exchanger 9.
  • the primary circuit consists of a heat pump 13, a circulating 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.
  • a switching device is designated 17 and contains a relay with a coil 18 and with contacts 19, 20a and 20b open in the idle state.
  • the coil 18 is in series with the contacts of the thermostats T1 and T2, which are also in series, at a supply voltage (for example mains voltage). If the temperature of the hot water in the storage tank 1 is sufficiently high, the contact of the thermostat T1 is open. The contact of the thermostat T2 is closed because cold service water is present in the secondary circuit from the bottom of the storage tank. If hot service water is withdrawn via the discharge line 6, cold water flows in via the feed pipe 4 ′.
  • the contact of the thermostat T1 closes and thus closes the circuit for the coil 18, so that the contacts 19, 20a and 20b close.
  • the contact 19 serves as a self-holding contact, that is, it bridges the contact of the thermostat Tl.
  • the electromagnetically actuated priority valve 15 is directly connected, and on the other hand, the charging pump 10 is connected to the supply voltage via the contact of the thermostat T3.
  • the contact of the thermostat T3 is open below a predetermined temperature of the primary circuit medium, ie the charge pump only starts to work until Thermostat T3 the flow temperature has been reached.
  • 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 maximum of one pass of the service water to be heated.
  • the memory 1 is loaded from above and the separating layer between hot and cold process water moves downwards until the charging of the memory 1 has ended and the thermostat T2 thus the priority valve 15 is switched back to heating mode.
  • the thermostat T1 also switches on the heat pump 13 and switches on the primary circuit. After the maximum flow temperature has been reached, the thermostat T3 switches on the charge pump 10 again, thereby ensuring that the secondary circuit is only put into operation when the primary circuit is fully powered.
  • the thermostat T1 can be arranged at any height of the storage container; the desired discharge state of the storage device is usually decisive for its position until the heating process begins.
  • the heat pump can only be used for the preparation of waste water or the intermediate circuit or coolant can flow through the primary circuit.
  • the thermostat T3 can be replaced by a timing relay, ie the charging pump is switched on after the contacts 20a, 20b are closed after a predetermined time interval.
  • a central heating boiler or a solar system can also be used instead of a heat pump to supply energy. Guaranteed with these heating systems too the constant heat transfer performance during the entire charging process ensures a constant high efficiency of the system.
  • An advantageous embodiment of the invention provides that the flow rate of the secondary circuit of the heat exchanger is controlled 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 regulation of the flow rate can be continuous or discontinuous, i.e. for example as a time control.
  • An additional thermostat T4 is arranged 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 the production of hot water is primarily operated.
  • the function of this arrangement is otherwise the same as that of the previous 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 according to the invention as a continuously adjustable valve, which is adjustable, for example, by means of a servomotor and also as a function of the water temperature at the exit point of the secondary circuit from the heat exchanger; whereby the voltage corresponding to the temperature (actual value) measured by means of a thermocouple, for example, amplifies and with a selectable setpoint is compared, the differential voltage between the setpoint and actual value being supplied to the servomotor via a power amplifier.
  • the drive motor for the charge pump 10, 10 ' can also be controlled, ie act as an actuator, the flow rate being adapted to the respective heat supply by changing the number of revolutions as a function of 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)
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 true EP0038318A1 (fr) 1981-10-21
EP0038318B1 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 (10)

* 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
EP0092864A2 (fr) * 1982-04-15 1983-11-02 I.R.E. Industrie Riunite Eurodomestici S.p.A. Système de pompe à chaleur pour la production d'eau chaude
EP0098788A2 (fr) * 1982-07-02 1984-01-18 Carrier Corporation Combinaison d'un circuit de réfrigération et d'un préchauffeur d'eau chaude, système de conditionnement d'air utilisant un tel système et partie d'un tel système avec une telle combinaison
DE3311127A1 (de) * 1983-03-26 1984-10-11 Fa. Rud. Otto Meyer, 2000 Hamburg Verfahren zur regelung von im verbund geschalteten waermeerzeugern und schaltung zur durchfuehrung des verfahrens
WO1990002300A1 (fr) * 1988-08-22 1990-03-08 Thermia Ab Pompe thermique servant au chauffage ou au refroidissement d'espaces fermes et egalememt au chauffage de l'eau du robinet
DE4342742A1 (de) * 1992-12-17 1994-06-23 Austria Email Waermetechnik Ge Warmwasserbereitungsanlage
FR2745071A1 (fr) * 1996-02-19 1997-08-22 Vaillant Sarl Ensemble accumulateur d'eau en couches
DE19904937A1 (de) * 1999-02-06 2000-08-10 Univ Dresden Tech Verfahren und Anordnung zur Regelung der Warmwassertemperatur in Heizungsanlagen
CN105569119A (zh) * 2016-01-10 2016-05-11 茹朝贵 一种新型热水器
WO2018071947A1 (fr) * 2016-10-20 2018-04-26 Herz Armaturen Ges.M.B.H. Dispositif pour réguler la température d'eau sanitaire

Families Citing this family (3)

* 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
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.
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

Citations (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
DE2508135A1 (de) * 1974-03-01 1976-01-22 Ctc Ab Anordnung zur beheizung von wasser in heisswasserspeichern
DE2432893A1 (de) * 1974-07-09 1976-01-29 Robert Lamb Verfahren zum betrieb einer waermepumpenanlage und anlage zur durchfuehrung des verfahrens
US4141222A (en) * 1977-04-27 1979-02-27 Weatherking, Inc. Energy recovery system for refrigeration systems
US4142379A (en) * 1976-08-16 1979-03-06 Kuklinski Henry W Waste energy recovery system
FR2443029A1 (fr) * 1978-06-23 1980-06-27 Technip Cie Procede et installation de chauffage d'eau utilisant un capteur solaire

Patent Citations (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
DE2508135A1 (de) * 1974-03-01 1976-01-22 Ctc Ab Anordnung zur beheizung von wasser in heisswasserspeichern
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 (12)

* 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
EP0092864A2 (fr) * 1982-04-15 1983-11-02 I.R.E. Industrie Riunite Eurodomestici S.p.A. Système de pompe à chaleur pour la production d'eau chaude
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
EP0098788A2 (fr) * 1982-07-02 1984-01-18 Carrier Corporation Combinaison d'un circuit de réfrigération et d'un préchauffeur d'eau chaude, système de conditionnement d'air utilisant un tel système et partie d'un tel système avec une telle combinaison
EP0098788A3 (en) * 1982-07-02 1984-11-14 Carrier Corporation Combined refrigerant circuit and hot water preheater, air conditioning system using same and section of such system including the combination
DE3311127A1 (de) * 1983-03-26 1984-10-11 Fa. Rud. Otto Meyer, 2000 Hamburg Verfahren zur regelung von im verbund geschalteten waermeerzeugern und schaltung zur durchfuehrung des verfahrens
WO1990002300A1 (fr) * 1988-08-22 1990-03-08 Thermia Ab Pompe thermique servant au chauffage ou au refroidissement d'espaces fermes et egalememt au chauffage de l'eau du robinet
DE4342742A1 (de) * 1992-12-17 1994-06-23 Austria Email Waermetechnik Ge Warmwasserbereitungsanlage
FR2745071A1 (fr) * 1996-02-19 1997-08-22 Vaillant Sarl Ensemble accumulateur d'eau en couches
DE19904937A1 (de) * 1999-02-06 2000-08-10 Univ Dresden Tech Verfahren und Anordnung zur Regelung der Warmwassertemperatur in Heizungsanlagen
CN105569119A (zh) * 2016-01-10 2016-05-11 茹朝贵 一种新型热水器
WO2018071947A1 (fr) * 2016-10-20 2018-04-26 Herz Armaturen Ges.M.B.H. Dispositif pour réguler la température d'eau sanitaire

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
EP0038318B1 (fr) 1985-03-20

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
DE4421137A1 (de) Wasserheizer
AT368621B (de) Temperaturregeleinrichtung des wassers in einem wasserspeicherbehaelter
DE3917068C2 (fr)
DE1299393B (de) Warmwassererzeuger, insbesondere Heizwassererzeuger
DE1903774A1 (de) Vorrichtung zum Erhitzen fluessiger Medien
DE2750098C2 (de) Warmwasser-Heizungsanlage
DE3030565A1 (de) Heizkessel fuer heizungsanlagen
DE1753298A1 (de) Haushalts-Warmwasserbereiter
DE2307109A1 (de) Heizgeraet fuer brauch- und heizwasser
DE3145636C2 (fr)
AT373376B (de) Vorrichtung in verbindung mit einer temperaturregeleinrichtung des wassers in einem wasserspeicherbehaelter
DE2529858C2 (de) Verfahren und Vorrichtung zum Regeln einer Wärmeübertragungsanlage
AT414272B (de) Schichtenspeicher
DE2710139A1 (de) Vorrichtung zum erhitzen von brauchwasser in einem fluessigkeitsgefuellten speicherkessel
AT407095B (de) Warmwasserspeicher
DE102011014907B4 (de) Verfahren zur Regelung eines Solarkreislaufs
EP2339247A2 (fr) Procédé de chauffage d'eau non potable
AT397144B (de) Steuerung und steuerungsanlage zur erwärmung von brauchwasser
DE3138803A1 (de) Aufheizregelung eines stehenden brauchwasserspeichers und vorrichtung zur durchfuehrung der regelung
DE3218442A1 (de) Verfahren zum erwaermen von wasser sowie danach arbeitender warmwasserbereiter
AT404183B (de) Einrichtung zur erzeugung von warmwasser in objekten mit zentraler wärmeversorgung
CH622337A5 (en) Method and installation for heating rooms of a building

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