EP2255135A1 - Water heater arrangement - Google Patents

Water heater arrangement

Info

Publication number
EP2255135A1
EP2255135A1 EP09717403A EP09717403A EP2255135A1 EP 2255135 A1 EP2255135 A1 EP 2255135A1 EP 09717403 A EP09717403 A EP 09717403A EP 09717403 A EP09717403 A EP 09717403A EP 2255135 A1 EP2255135 A1 EP 2255135A1
Authority
EP
European Patent Office
Prior art keywords
water heater
gas
water
operated
electric
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.)
Withdrawn
Application number
EP09717403A
Other languages
German (de)
French (fr)
Inventor
József Bereznai
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.)
Bery Intellectual Properties Kft
Original Assignee
B B I P SZELLEMI TULAJDONJOG H
Bbip Szellemi Tulajdonjog-Hasznosito Es Vagyonkezelo Korlatolt Felelossegu Tarsasag
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by B B I P SZELLEMI TULAJDONJOG H, Bbip Szellemi Tulajdonjog-Hasznosito Es Vagyonkezelo Korlatolt Felelossegu Tarsasag filed Critical B B I P SZELLEMI TULAJDONJOG H
Publication of EP2255135A1 publication Critical patent/EP2255135A1/en
Withdrawn legal-status Critical Current

Links

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
    • F24D11/00—Central heating systems using heat accumulated in storage masses
    • F24D11/002—Central heating systems using heat accumulated in storage masses water heating system
    • F24D11/004—Central heating systems using heat accumulated in storage masses water heating system with conventional supplementary heat source
    • 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
    • F24H1/18—Water-storage heaters
    • F24H1/20—Water-storage heaters with immersed heating elements, e.g. electric elements or furnace tubes
    • F24H1/201—Water-storage heaters with immersed heating elements, e.g. electric elements or furnace tubes using electric energy supply
    • F24H1/202—Water-storage heaters with immersed heating elements, e.g. electric elements or furnace tubes using electric energy supply with resistances
    • 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
    • F24H1/18—Water-storage heaters
    • F24H1/20—Water-storage heaters with immersed heating elements, e.g. electric elements or furnace tubes
    • F24H1/208—Water-storage heaters with immersed heating elements, e.g. electric elements or furnace tubes with tubes filled with heat transfer fluid
    • 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
    • F24D2200/00—Heat sources or energy sources
    • F24D2200/04—Gas or oil fired boiler
    • 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
    • F24D2200/00—Heat sources or energy sources
    • F24D2200/08—Electric heater

Definitions

  • This invention is relating to a water heater arrangement for serving utility hot water outlets, which includes a gas-operated water heater or a combined circulation heater and water heater means that has a cold water inlet and a warm water outlet pipeline.
  • gas water heaters are generally used.
  • circulator types that are operated by water flow evoked by opening of a hot water tap at a water-taking spot. Heating of water included in the pipe section between the water heater and the spot of water taking, as well as slow start of heat transfer for heating at the beginning of the flow causes that even for a relatively long time, only cold or not sufficiently heated water reaches the spot of water taking. This disadvantage is annoying especially in case of intention to take a small amount of hot water, when in time and in water there is a large wasted and practically not utilised amount.
  • gas-operated storage heater boilers - that include a built-in buffer container - are also used. Hot water is transferred to the place of water taking from this buffer container. The container is heated in a controlled way, what results in a more smooth gas burner power consumption characteristic. If the size of the buffer container is small then this does not significantly increase the dimensions of the device, but hot water will run out quickly. If the buffer container is large then run-out will occur later, but gas energy used for heating may appear as superfluous if no hot water is taken for a long time. This disadvantage can be reduced by increasing the heat insulation, which may lead to increase of cost.
  • Another frequent category of water heaters uses electric heating, and in the heat insulated device container it stores stand by hot water of controlled temperature. Its advantage is the possibility of simply and cheap accomplishment of temperature regulation. Its disadvantage is, however, that generally they require more space than circulation gas devices and consume significant electric power. A further disadvantage is that in case of longer power cuts there is not hot water supply.
  • the object of this invention to find a solution that even in case of taking frequently or only small amounts of hot water eliminates the delay effect, and at the same time it is of favourable energy consumption, requires little initial investment and is operable even in the absence of considerable energy supply.
  • the invention is based on the recognition that it can be combined the advantages of gas-operated water heaters with the advantages of electric water heaters of small-size container, and with this arrangement it can be achieved optimal operation and practically unchanged overall device size.
  • a further advantage of this arrangement is elimination of the effect occurring while taking very small amount of hot water, when due to the small amount the gas water heater does not start automatically, and even into the storage heater container only cold water flows in, which after many small takings stores only cold water.
  • the electric storage heater boiler constantly heats the water until reaching the preset temperature, that is during the pauses between the shorr/intervals. Thereby it provides both the heat balance and minimization of the size of the container.
  • the object of the invention is achieved by a water heater according to the introductory paragraph, in which a storage type electric water heater is inserted serially into the hot water outlet pipeline, which electric water heater is equipped with a thermostat.
  • Fig. 1 is a gas-operated water heater device with electric water heater according to the invention, connected from outside
  • Fig. 2 is a gas-operated water heater device with electric water heater according to the invention, connected in built-in way.
  • FIG. 1 an optional gas-operated circulation water heater device 1 is shown.
  • the gas-operated water heater device 1 has a cold water inlet pipeline 2 and a hot water outlet pipeline 3.
  • an electric water heater 4 according to the invention -outside connected to the previous partis inserted.
  • the electric water heater 4 has an electric connector 8 connected to a heating wire as well as a thermostat 5 that detects the temperature of the stored puffer water and controls the heating wire accordingly.
  • the electric water heater 4 is inserted into the hot water outlet pipeline 3 outside of the gas-operated circulation water heater device 1 but in its close vicinity. This arrangement can be advantageous from the point of view of effective utilization of space.
  • the container of the electric water heater 4 it can be expedient to cover the container of the electric water heater 4 by heat insulating material, because due to its external placement it is not contacted with significant amount of available extra heat.
  • the electric water heater 4 can be placed even further from the gas-operated circulation water heater device 1 in the hot water pipeline towards the water taking spot.
  • the electric water heater is built-in into the gas-operated circulation water heater device 1. Its advantage is that it is not necessary to lead or disassemble the hot water pipeline. Its another advantage can be that in case of proper design and placement the buffer storage container of the electric water heater 4 can utilize the waste heat otherwise non-usable that evolves in the gas-operated circulation water heater device. For this purpose we can use a heat transfer element that penetrates into the combustion space 7 of the gas-operated circulation water heater device 1 , and by heat transfer it preheats the water amount included in the electric water heater 4, thereby reducing the amount of electric energy necessary for heating to a preset minimum temperature. This heating is performed in a controlled way, i.e. the thermostat 5 keeps the water included in the electric water heater 4, that is in the buffer container.
  • the electric water heater 4 that works as a buffer container, because it serves basically for compensation of temperature delay and overshoot of the gas-operated single water heater or combined circulation water heater device 1. For this generally it is enough to apply a buffer container smaller than 20 litres, e.g. 5-15 litres. Yet with such buffer volumes we get at the spot of water taking a completely steady temperature that is adjustable by the thermostat 5 of the electric water heater 4. The electric water heater 4 heats the system also in the period beyond taking water, therefore a small-size container is sufficient. We can choose this temperature also for relatively low, this will not prevent that possibly much hotter water supplied by the gas-operated water heater device 1 with some time delay, will also reach the water taking spot.

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)
  • Instantaneous Water Boilers, Portable Hot-Water Supply Apparatuses, And Control Of Portable Hot-Water Supply Apparatuses (AREA)

Abstract

A water heater arrangement comprising a gas-operated water heater device (1) that has an cold water inlet pipeline (2) and an hot water outlet pipeline (3), and which further comprises a storage type electric water heater (4) inserted serially into the hot water outlet pipeline (3), and which is equipped with a thermostat (5). In an embodiment it absorbs and utilizes the waste heat of the gas-operated water heater device (1).

Description

WATER HEATER ARRANGEMENT
This invention is relating to a water heater arrangement for serving utility hot water outlets, which includes a gas-operated water heater or a combined circulation heater and water heater means that has a cold water inlet and a warm water outlet pipeline.
At homes and in places of small hot water demand, gas water heaters are generally used. Among them we can find circulator types that are operated by water flow evoked by opening of a hot water tap at a water-taking spot. Heating of water included in the pipe section between the water heater and the spot of water taking, as well as slow start of heat transfer for heating at the beginning of the flow causes that even for a relatively long time, only cold or not sufficiently heated water reaches the spot of water taking. This disadvantage is annoying especially in case of intention to take a small amount of hot water, when in time and in water there is a large wasted and practically not utilised amount. Devices generally at the start of water flow begin to work with maximum gas burner power, which however may lead to overheating after the mentioned initial period, and this can also be annoying, e.g. at/ the next opening that is repeated within a short time, where the user does not anticipate overheated water.
Moreover, gas-operated storage heater boilers - that include a built-in buffer container - are also used. Hot water is transferred to the place of water taking from this buffer container. The container is heated in a controlled way, what results in a more smooth gas burner power consumption characteristic. If the size of the buffer container is small then this does not significantly increase the dimensions of the device, but hot water will run out quickly. If the buffer container is large then run-out will occur later, but gas energy used for heating may appear as superfluous if no hot water is taken for a long time. This disadvantage can be reduced by increasing the heat insulation, which may lead to increase of cost.
It is also possible to use a buffer container placed out of the device, by which the dimensions of the device will not increase, but to reach the controlled temperature a separate circulation pump must be used, which is also costly. These solutions have a common disadvantage that in case of absence of gas supply they do not provide any hot water, or only with a large buffer container are suitable for a more significant temporary hot water supply.
Another frequent category of water heaters uses electric heating, and in the heat insulated device container it stores stand by hot water of controlled temperature. Its advantage is the possibility of simply and cheap accomplishment of temperature regulation. Its disadvantage is, however, that generally they require more space than circulation gas devices and consume significant electric power. A further disadvantage is that in case of longer power cuts there is not hot water supply.
The object of this invention to find a solution that even in case of taking frequently or only small amounts of hot water eliminates the delay effect, and at the same time it is of favourable energy consumption, requires little initial investment and is operable even in the absence of considerable energy supply.
The invention is based on the recognition that it can be combined the advantages of gas-operated water heaters with the advantages of electric water heaters of small-size container, and with this arrangement it can be achieved optimal operation and practically unchanged overall device size.
A further advantage of this arrangement is elimination of the effect occurring while taking very small amount of hot water, when due to the small amount the gas water heater does not start automatically, and even into the storage heater container only cold water flows in, which after many small takings stores only cold water. In the solution applied by us, however, the electric storage heater boiler constantly heats the water until reaching the preset temperature, that is during the pauses between the shorr/intervals. Thereby it provides both the heat balance and minimization of the size of the container.
The object of the invention is achieved by a water heater according to the introductory paragraph, in which a storage type electric water heater is inserted serially into the hot water outlet pipeline, which electric water heater is equipped with a thermostat.
Further we present the invention by drawings, where
Fig. 1 is a gas-operated water heater device with electric water heater according to the invention, connected from outside, Fig. 2 is a gas-operated water heater device with electric water heater according to the invention, connected in built-in way.
In Fig. 1 an optional gas-operated circulation water heater device 1 is shown. The gas-operated water heater device 1 has a cold water inlet pipeline 2 and a hot water outlet pipeline 3. Into the latter, in serial arrangement, an electric water heater 4 according to the invention -outside connected to the previous partis inserted. The electric water heater 4 has an electric connector 8 connected to a heating wire as well as a thermostat 5 that detects the temperature of the stored puffer water and controls the heating wire accordingly. According to Fig. 1 the electric water heater 4 is inserted into the hot water outlet pipeline 3 outside of the gas-operated circulation water heater device 1 but in its close vicinity. This arrangement can be advantageous from the point of view of effective utilization of space. In such a case, it can be expedient to cover the container of the electric water heater 4 by heat insulating material, because due to its external placement it is not contacted with significant amount of available extra heat. The electric water heater 4 can be placed even further from the gas-operated circulation water heater device 1 in the hot water pipeline towards the water taking spot.
In case of another embodiment, which is shown in Fig. 2, the electric water heater is built-in into the gas-operated circulation water heater device 1. Its advantage is that it is not necessary to lead or disassemble the hot water pipeline. Its another advantage can be that in case of proper design and placement the buffer storage container of the electric water heater 4 can utilize the waste heat otherwise non-usable that evolves in the gas-operated circulation water heater device. For this purpose we can use a heat transfer element that penetrates into the combustion space 7 of the gas-operated circulation water heater device 1 , and by heat transfer it preheats the water amount included in the electric water heater 4, thereby reducing the amount of electric energy necessary for heating to a preset minimum temperature. This heating is performed in a controlled way, i.e. the thermostat 5 keeps the water included in the electric water heater 4, that is in the buffer container.
It is enough to choose a low storage capacity for the electric water heater 4 that works as a buffer container, because it serves basically for compensation of temperature delay and overshoot of the gas-operated single water heater or combined circulation water heater device 1. For this generally it is enough to apply a buffer container smaller than 20 litres, e.g. 5-15 litres. Yet with such buffer volumes we get at the spot of water taking a completely steady temperature that is adjustable by the thermostat 5 of the electric water heater 4. The electric water heater 4 heats the system also in the period beyond taking water, therefore a small-size container is sufficient. We can choose this temperature also for relatively low, this will not prevent that possibly much hotter water supplied by the gas-operated water heater device 1 with some time delay, will also reach the water taking spot. When the tap at the water taking spot is closed, the water remaining in the container of the electric water heater 4 will be of higher temperature than it is preset by the thermostat 5. Then, until cooling back the water included in the buffer container the operation of electric heating is not required. By this we can achieve favourable energy consumption, environment-friendly operation.
By the arrangement according to the invention it can be provided that in case of absence of gas or heavy electric current there is a possibility for taking of utility hot water. At the same time, disadvantageous delay of gas-operated water heating with more favourable economy is also eliminated, because water included in the buffer container of electric heating balances slow reaction in temperature or overheating either in case of single water heater or combined circulation water heater devices. Buffer container of electric heating with a relatively small size will increase dimensions to a little extent only and consumes little electric energy. In case of integration with the gas-operated device the buffer container does not require significant heat insulation.
LIST OF REFERENCES
1 gas-operated water heater device
2 cold water inlet pipeline
3 hot water outlet pipeline
4 electric water heater
5 thermostat
6 heat transfer element
7 combustion space
8 electric connector

Claims

1. Water heater arrangement with a gas-operated water heater device (1) that is connected to a cold water inlet pipeline (2) and to a hot water outlet pipeline (3), characterized in that it further comprises a storage type electric water heater (4) inserted serially into the hot water outlet pipeline (3), and which is equipped with a thermostat (5).
2. Arrangement according to claim 1 , characterized in that the electric water heater (4) is built into the gas-operated water heater device (1).
3. Arrangement according to claim 1 , characterized in that the electric water heater (4) is outside connected to the gas-operated water heater device (1).
4. Arrangement according to claim 1 , characterized in that storage container of the electric water heater (4) is of a storage volume of less than 20 litres.
5. Arrangement according to claim 2, characterized in that the electric water heater (4) is built inside the gas-operated water heater device (1) in order to absorb and utilize its waste heat.
6. Arrangement according to claim 5, characterized in that the electric water heater (4) is built into the gas-operated water heater device (1) with a heat transfer element (6) that penetrates into its combustion space.
7. Arrangement according to any of claims 1-6, characterized in that the container of the electric water heater (4) is covered by heat insulation material.
EP09717403A 2008-03-05 2009-03-04 Water heater arrangement Withdrawn EP2255135A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
HU0800147A HU229686B1 (en) 2008-03-05 2008-03-05 Water heater assembly
PCT/HU2009/000023 WO2009109794A1 (en) 2008-03-05 2009-03-04 Water heater arrangement

Publications (1)

Publication Number Publication Date
EP2255135A1 true EP2255135A1 (en) 2010-12-01

Family

ID=89988121

Family Applications (1)

Application Number Title Priority Date Filing Date
EP09717403A Withdrawn EP2255135A1 (en) 2008-03-05 2009-03-04 Water heater arrangement

Country Status (7)

Country Link
US (1) US20110058796A1 (en)
EP (1) EP2255135A1 (en)
CN (1) CN101970948B (en)
HU (1) HU229686B1 (en)
MX (1) MX2010009714A (en)
RU (1) RU2496061C2 (en)
WO (1) WO2009109794A1 (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ITTV20110157A1 (en) * 2011-11-10 2013-05-11 Ct Tecnico Snc Di Biz Luca E Se Rgio BOILER
MX366601B (en) * 2013-06-05 2019-07-15 Rheem Mfg Co Integrated renewable energy system.
GB201310821D0 (en) * 2013-06-18 2013-07-31 Sunamp Ltd Energy storage system
CN104236112B (en) * 2014-09-29 2018-01-02 芜湖美的厨卫电器制造有限公司 The control method of water system
CN104964427B (en) * 2015-05-15 2018-01-02 芜湖美的厨卫电器制造有限公司 Fire electric complementary hot-water system
WO2017105178A1 (en) * 2015-12-14 2017-06-22 Martin Gustavo Vazquez Palma Water heater with hybrid heat source and heat exchanger
CN106247436A (en) * 2016-09-20 2016-12-21 福建中净环境工程股份有限公司 A kind of central water system without backwater instant-heating and method thereof

Family Cites Families (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB362904A (en) * 1930-09-06 1931-12-07 William Laplene Livingstone A combined gas-electric water heater
GB685813A (en) * 1950-02-28 1953-01-14 Electrolux Ab Improvements in heating devices for washing boilers and like liquid heaters
US3249303A (en) * 1964-07-13 1966-05-03 Esley L Townsend Combination gas and electric hot water heating system
FR2549582B1 (en) * 1983-07-19 1985-11-29 Gouyou Beauchamps Jacques MONOBLOCK BIENERGY APPARATUS FOR THE PRODUCTION OF CENTRAL HEATING HOT WATER AND DOMESTIC HOT WATER
SU1171651A1 (en) * 1983-08-22 1985-08-07 Mikhajlik Viktor D Water heater
US4893610A (en) * 1989-05-31 1990-01-16 Kang Jong K Liquefied petroleum gas and electric water heater
RU2120584C1 (en) * 1996-07-11 1998-10-20 Радченко Сергей Анатольевич Water heater
CN2357261Y (en) * 1998-06-09 2000-01-05 李湘生 Full-automatic gas (electricity) water heater
JP4023139B2 (en) * 2001-04-04 2007-12-19 株式会社デンソー Hybrid water heater
CN2489262Y (en) * 2001-07-20 2002-05-01 宗海燕 Gas fast thermostatic water heater
RU33210U1 (en) * 2003-04-29 2003-10-10 Вахтин Игорь Петрович Device for heating and hot water
CN2830956Y (en) * 2005-07-19 2006-10-25 钱志鸿 Gas water heater with electrothermal water circulator
CN2921682Y (en) * 2006-04-25 2007-07-11 李华 Water storing gas electric two purpose central water heater
CN2926904Y (en) * 2006-07-17 2007-07-25 黄英荣 Two-purpose water heater with gas and electrothermal functions
RU59220U1 (en) * 2006-08-08 2006-12-10 Юлай Хакимович Байчурин HOUSEHOLD ELECTRIC HEATER
US20080085106A1 (en) * 2006-08-24 2008-04-10 Jenson Scott L Two-stage water heater assembly
CN101424447B (en) * 2008-10-07 2011-02-02 艾欧史密斯(中国)热水器有限公司 Mixed energy thermostatic control water heater

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO2009109794A1 *

Also Published As

Publication number Publication date
HU229686B1 (en) 2014-04-28
MX2010009714A (en) 2010-11-12
RU2496061C2 (en) 2013-10-20
HUP0800147A2 (en) 2009-11-30
US20110058796A1 (en) 2011-03-10
RU2010139995A (en) 2012-04-10
CN101970948B (en) 2013-11-06
WO2009109794A1 (en) 2009-09-11
CN101970948A (en) 2011-02-09

Similar Documents

Publication Publication Date Title
US20110058796A1 (en) Water heater arrangement
US10760819B2 (en) Water supply system that is selectively supplied with heated water
CN203413833U (en) Water outlet system of gas water heater
WO2024067632A1 (en) Method and apparatus for adjusting battery temperature of vehicle, and vehicle
EP2762789B1 (en) Thermal integrated multi-source plant
CN201184686Y (en) Instant-heating water-storing type electric water heater
CN113757773B (en) Heating stove and control method thereof
JP5210195B2 (en) Hot water storage water heater
CN105299731B (en) A kind of solar energy heating and utilization peak-trough electricity auxiliary heating technique
CN106152484A (en) Fast-heating water storing type electric water heater
KR200446160Y1 (en) System for automatically control heating and hot water in briquette boiler
CN206094528U (en) Instant -heating water -storage type electric water heater
TWI682135B (en) Solar auxiliary heating system of electric water heater
KR101024489B1 (en) Energy-saving electric boiler
JP3158411U (en) Heat recovery device for heating stove
EP1939540A2 (en) A Heating System
GB2505263A (en) Fluid heating and storage system, ideally using a weather compensation boiler
CN219640434U (en) Water heater and temperature regulating system
CN218210097U (en) Multi-energy hot water system
CN117461998A (en) Liquid processing system, control method and control device thereof, and readable storage medium
KR200176674Y1 (en) Midnight electric boiler
EP1230520B1 (en) Draw-off conduit for hot-water
NL194209C (en) Water heating device.
RU11308U1 (en) RADIATOR
CN2384167Y (en) Electric water heater capable of selecting heated water volume

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

17P Request for examination filed

Effective date: 20100830

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO SE SI SK TR

AX Request for extension of the european patent

Extension state: AL BA RS

DAX Request for extension of the european patent (deleted)
RAP1 Party data changed (applicant data changed or rights of an application transferred)

Owner name: BERY INTELLECTUAL PROPERTIES SZELLEMI TULAJDONJOGO

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

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 20141001