EP1869371A1 - Heizsteuerungssystem - Google Patents
HeizsteuerungssystemInfo
- Publication number
- EP1869371A1 EP1869371A1 EP06747355A EP06747355A EP1869371A1 EP 1869371 A1 EP1869371 A1 EP 1869371A1 EP 06747355 A EP06747355 A EP 06747355A EP 06747355 A EP06747355 A EP 06747355A EP 1869371 A1 EP1869371 A1 EP 1869371A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- hot
- water
- temperature
- restoration
- pipe
- 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- Withdrawn
Links
- 238000010438 heat treatment Methods 0.000 title claims description 24
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 202
- 238000010586 diagram Methods 0.000 description 2
- 238000012544 monitoring process Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 1
Classifications
-
- 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
- F24H9/00—Details
- F24H9/20—Arrangement or mounting of control or safety devices
- F24H9/2007—Arrangement or mounting of control or safety devices for water heaters
-
- 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
- F24D3/10—Feed-line arrangements, e.g. providing for heat-accumulator tanks, expansion tanks ; Hydraulic components of a central heating system
- F24D3/1058—Feed-line arrangements, e.g. providing for heat-accumulator tanks, expansion tanks ; Hydraulic components of a central heating system disposition of pipes and pipe connections
- F24D3/1066—Distributors for heating liquids
-
- 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
-
- 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
- F24D19/1009—Arrangement or mounting of control or safety devices for water heating systems for central heating
- F24D19/1015—Arrangement or mounting of control or safety devices for water heating systems for central heating using a valve or valves
-
- 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
-
- 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
-
- 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
- F24D2220/00—Components of central heating installations excluding heat sources
- F24D2220/04—Sensors
- F24D2220/042—Temperature sensors
Definitions
- the present invention relates to a heating control system and, more particularly, to a temperature regulation system operatively associated with a boiler that controls indoor temperature, and a boiler water collection pipe incorporated in the temperature regulation system.
- a combined heating and hot- water gas boiler heats water circulating through a heat exchanger and circulates the hot water to a heating pipe or to a hot- water heat exchanger.
- the hot water heated by the heat exchanger circulates through a hot-water circulating circuit for hot- water supply and heating.
- FIG. 1 illustrates an example of the hot- water circulating circuit of the combined heating and hot- water gas boiler.
- Water is supplied to a heating pipe 4 of the gas boiler, and air in the heating pipe is discharged to a water tank 3 through a hot- water restoration pipe 1.
- the water in the heating pipe 4 is restored by the driving force of a circulation pump P and heat-changed when passing through a heat exchanger 6 heated by a burner 6.
- the hot water circulates into the heating pipe 4 through a hot- water supply pipe 7 by guidance of a direction-switching valve 2 in which a hot- water heat exchanger 8 is branched off.
- the typical gas boiler having the above-mentioned pipe arrangement is controlled by a controller incorporated in a control box.
- the controller stops operating the boiler when indoor temperature (or hot- water restoration temperature) reaches a predetermined setup temperature.
- the controller re-operates the boiler when the indoor temperature becomes lower than the setup temperature.
- the present invention provides a temperature regulation system operatively associated with a boiler that reduces the frequency of operation and non-operation of the boiler to improve the driving efficiency of boiler.
- the present invention further provides a boiler water collection pipe incorporated in the temperature regulation system.
- the present invention when the hot- water restoration temperature reaches a temperature set by an operator, the amount of water required to maintain the temperature is supplied so that the boiler can continuously operate.
- the present invention can prevent energy loss due to unnecessary start-up of boiler, resulting in an increased driving efficiency of boiler.
- FIG. 1 is a pipe arrangement for explaining hot water circulation in a typical gas boiler
- FIG. 2 is a block diagram of a temperature regulation system operatively associated with a boiler according to an embodiment of the present invention
- Fig. 3 is a boiler water collection pipe of the boiler shown in Fig. 2 according to an embodiment of the present invention
- FIG. 4 is a side view of the boiler water collection pipe shown in Fig. 3;
- Fig. 5 is a flow control valve actuated by a valve actuator shown in Fig. 4.
- a temperature regulation system operatively associated with a boiler, including: a temperature sensor sensing hot- water restoration temperature of a space to be heated; a flow controller controlling the amount of restored hot water in the space; a hot- water restoration-flow detector detecting the amount of restored hot water flowing through a hot- water restoration pipe; a key input unit used to set hot-water restoration temperature and a minimum amount of restored hot water; and a controller controlling a flow controller so that when hot- water restoration temperature of a space sensed by a temperature sensor is equal to hot- water restoration setup temperature set by an operator, the amount of water required to maintain the hot-water restoration setup temperature flows into a hot- water restoration pipe.
- the flow controller may be mounted on a hot- water collection pipe, and include: a flow control valve having a through-hole communicating a hot- water inlet with a hot- water outlet, a valve rod moving from outside to inside of a body, and a valve member coupled to an end of the valve rod to open/close the through-hole; and a valve actuator having a motor operating under control of the controller and gears moving the valve rod by operation of the motor.
- the hot- water restoration-flow detector may be mounted on a hot- water outlet of the collection pipe, and include: a propeller rotating by hot water flowing into the hot- water restoration pipe; a rotating shaft connected to the propeller; a magnet mounted on the propeller; and a hole sensor sensing magnetic field of the rotating magnet.
- a temperature regulation system operatively associated with a boiler, including: a key input unit used to set hot- water restoration temperature; and a controller controlling a flow controller that controls the amount of restored hot water so that when hot- water restoration temperature of a space sensed by a temperature sensor is equal to hot- water restoration setup temperature set by an operator, the amount of water required to maintain the hot- water restoration setup temperature flows into a hot- water restoration pipe.
- a key input unit used to set hot- water restoration temperature
- a controller controlling a flow controller that controls the amount of restored hot water so that when hot- water restoration temperature of a space sensed by a temperature sensor is equal to hot- water restoration setup temperature set by an operator, the amount of water required to maintain the hot- water restoration setup temperature flows into a hot- water restoration pipe.
- FIG. 2 is a block diagram of a temperature regulation system operatively associated with a boiler according to an embodiment of the present invention.
- Fig. 3 is a boiler water collection pipe of the boiler shown in Fig. 2 according to an embodiment of the present invention.
- Fig. 4 is a side view of the boiler water collection pipe shown in Fig. 3.
- Fig. 5 is a flow control valve actuated by a valve actuator shown in Fig. 4.
- a temperature regulation system operatively associated with a boiler is connected between a hot- water supply pipe 7 and a hot- water restoration pipe 1, each of which is connected to a boiler 30.
- the hot- water supply pipe 7 is connected to a hot- water distribution pipe 10 distributing hot water to indoor heating pipes.
- the hot-water restoration pipe 1 is connected to one end of a hot- water collection pipe 20 collecting hot water flowing through the indoor heating pipes and transmitting the hot water to the hot- water distribution pipe 10.
- the hot- water distribution pipe 10 has branches each of which is equipped with a manual valve 12 to control the flow of hot water entering into a room.
- Fig. 3 illustrates a configuration of the hot- water distribution pipe 10, hot- water collection pipe 20, and manual valve 12.
- the temperature regulation system includes a temperature sensor 16, at least one flow controller 18, and an indoor thermostat 14. It may further include a hot- water restoration-flow detector 22.
- the temperature sensor 16 senses hot- water restoration temperature and transmits the restoration temperature to the indoor thermostat 14.
- the temperature sensor 16 is mounted on the hot-water collection pipe 20 as shown in Figs. 3 and 4. At this time, the temperature sensor 16 is mounted on a collection inlet connected to the indoor heating pipe.
- Fig. 2 illustrates the temperature sensor 16 mounted on a collection inlet of the collection pipe 20.
- a temperature sensor 16 mounted on a collection inlet connected to a heating pipe of a largest room checks the hot- water restoration temperature.
- the flow controller 18 controlling the restoration flow of hot water flowing through each of the indoor heating pipes is mounted on the hot- water collection pipe 20 as shown in Figs. 3 and 4.
- One or more flow controllers 18 may be provided according to the number of indoor heating pipes connected to collection inlets.
- the flow controller 18 consists of a valve actuator 18a and a flow control valve
- the flow controller 18 may be a heating valve described in Korean Patent Application No. 10-2003-6714 filed by the present applicant.
- the flow controller 18 includes the flow control valve 18b having a through-hole 41 communicating a hot- water inlet 44 with a hot- water outlet 45, a valve rod 43 moving from outside to inside of a body, and a valve member 42 coupled to an end of the valve rod 43 and opening/closing the through-hole 41; and the valve actuator 18a having a motor operating under control of a controller incorporated in the indoor thermostat 14, and gears moving the valve rod 43 by driving the motor.
- the temperature regulation system further includes a hot-water restoration-flow detector 22 detecting the restoration flow of hot water flowing through the hot- water restoration pipe 1.
- the hot- water restoration-flow detector 22 is mounted on the hot- water outlet of the hot- water collection pipe 20.
- the hot-water restoration-flow detector 22 includes a propeller 24 rotated by hot water flowing into the hot- water restoration pipe 1, a rotating shaft connected to the propeller 24, a magnet 28 mounted on the propeller 24, and a hole sensor 26 sensing magnetic field of the magnet 28 rotating with rotation of the propeller 24.
- the hot- water restoration-flow detector 22 may be an additional member provided between the hot- water restoration pipe 1 and the hot- water outlet of the hot- water collection pipe 20.
- the temperature regulation system includes an indoor thermostat 14 having a key input unit used in setting a hot- water restoration temperature and a minimum amount of restored hot water, and a controller controlling the flow controller 18 such that when the hot- water restoration temperature sensed by the temperature sensor 16 is equal to hot- water restoration temperature set by an operator, the amount of hot water required to retain the hot- water restoration setup temperature flows through the hot- water restoration pipe 1.
- the hot- water restoration temperature is set by the operator using the thermostat 17 to maximize the efficiency of boiler.
- the hot- water restoration temperature set by the operator should be lower than a programmed hot- water restoration temperature set by a boiler manufacturer to control the operation of boiler.
- the minimum amount of restored hot water set by the operator implies a minimum amount of restored hot water required to operate the boiler.
- the flow controller 18 is controlled such that the amount of hot water that is required to retain the hot-water restoration temperature set by the operator and is greater than the minimum amount of the restored hot water flows through the hot- water restoration pipe 1. Accordingly, the hot- water restoration temperature is maintained within a predetermined range of temperatures, preventing energy loss due to unnecessary operation of the boiler.
- a controller of the thermostat 14 sets a largest of the rooms as a reference room and fully opens the flow control valve 18b of the flow controller 18.
- hot water having a temperature of 8O 0 C is supplied to the reference room through the hot- water supply pipe 7.
- the controller senses hot- water restoration temperature by means of the temperature sensor 16 mounted to correspond to the reference room.
- the controller controls flow control valves 18b of flow controllers 18 for other rooms to reach the sensed restoration temperature.
- each of the other rooms begins to be gradually heated. After passing through each of the indoor heating pipes, the hot water flows into the hot- water restoration pipe 1 through the hot- water collection pipe 20 and then into the boiler 30.
- the hot- water restoration temperature gradually increases.
- the controller of the thermostat 14 controls the flow controllers 18 so that the amount of hot water required to maintain the restoration temperature of 62 0 C can flow through the hot- water restoration pipe 1.
- the amount of hot water should be greater than the minimum amount of restored hot water to prevent the boiler from stopping operating.
- the restoration setup temperature of 62 0 C is maintained by gradually closing the flow control valve 18b while monitoring the restoration temperature of hot water.
- the boiler stops operating.
- the restoration temperature of hot water is maintained within a predetermined range, such that the indoor temperature gradually increases.
- the present invention can prevent energy loss due to unnecessary start-up of boiler, resulting in an increased driving efficiency of boiler.
- the controller of the thermostat 14 controls a control box 32 to stop operating the boiler.
- the present invention can effectively apply to a temperature regulation system operatively associated with a boiler, and a boiler water collection pipe.
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)
- Water Supply & Treatment (AREA)
- Steam Or Hot-Water Central Heating Systems (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020050030849A KR100633593B1 (ko) | 2005-04-13 | 2005-04-13 | 보일러 연동 온도조절 시스템과 그 시스템에 이용되는보일러용 난방수 회수관 |
PCT/KR2006/001351 WO2006109994A1 (en) | 2005-04-13 | 2006-04-12 | Heating control system |
Publications (1)
Publication Number | Publication Date |
---|---|
EP1869371A1 true EP1869371A1 (de) | 2007-12-26 |
Family
ID=37087234
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP06747355A Withdrawn EP1869371A1 (de) | 2005-04-13 | 2006-04-12 | Heizsteuerungssystem |
Country Status (6)
Country | Link |
---|---|
US (1) | US20080156281A1 (de) |
EP (1) | EP1869371A1 (de) |
JP (1) | JP2008536088A (de) |
KR (1) | KR100633593B1 (de) |
CN (1) | CN101175951A (de) |
WO (1) | WO2006109994A1 (de) |
Families Citing this family (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100805551B1 (ko) * | 2006-10-17 | 2008-02-20 | 주식회사 경동나비엔 | 보일러 배기연도의 응결방지방법 |
KR100952116B1 (ko) | 2007-11-15 | 2010-04-13 | 신기만 | 환수량 조절밸브 |
KR101007514B1 (ko) | 2008-01-25 | 2011-01-13 | 김서경 | 실내 온도 조절기와 난방 제어 방법, 그리고 난방 제어에이용되는 난방수 분배기 |
KR100951152B1 (ko) * | 2008-02-29 | 2010-04-06 | 주식회사 경동나비엔 | 밀폐형 팽창탱크를 구비한 가스보일러 |
KR100857377B1 (ko) | 2008-06-02 | 2008-09-05 | 코오롱건설주식회사 | 환수온도제어 및 시간제어에 의한 차등난방시스템 |
KR100953301B1 (ko) | 2009-10-15 | 2010-04-20 | 케이피에치이 주식회사 | 온수난방에서 배관 길이에 따른 균일한 난방방법 |
KR101120839B1 (ko) | 2011-07-01 | 2012-06-20 | 김희태 | 온수 난방 시스템 |
US10690356B2 (en) * | 2016-04-13 | 2020-06-23 | Paul D Mercier, SR. | Enhanced convection, differential temperature managed, hydronic heating appliance |
CN106642729B (zh) * | 2017-01-18 | 2022-03-25 | 广东万家乐燃气具有限公司 | 一种燃气热水器出水温度调节方法及燃气热水器 |
EP3382490B1 (de) * | 2017-03-31 | 2023-05-03 | Mitsubishi Electric R&D Centre Europe B.V. | Verfahren zur steuerung eines hydronischen heizsystems in mehreren räumen |
US20180298611A1 (en) * | 2017-04-17 | 2018-10-18 | David R. Hall | Configurable Hydronic Structural Panel |
Family Cites Families (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3997107A (en) * | 1974-04-03 | 1976-12-14 | Raypak, Inc. | Servo modulating regulating control system |
GB1570642A (en) * | 1976-07-08 | 1980-07-02 | Matsushita Electric Ind Co Ltd | Remote-controlled air-conditioning system |
JPS5843330A (ja) * | 1981-09-09 | 1983-03-14 | Sanyo Electric Co Ltd | 温水暖房装置 |
DE3479248D1 (en) * | 1983-12-21 | 1989-09-07 | Sulzer Ag | Process-variable regulating device for a flowing medium |
US4793190A (en) * | 1987-07-23 | 1988-12-27 | Chang Shih Chih | Device for measuring and indicating flow around a bend |
US5347825A (en) * | 1993-07-02 | 1994-09-20 | Krist Gene D | Hydronic interface system, method and apparatus |
GB9426145D0 (en) * | 1994-12-23 | 1995-02-22 | British Gas Plc | Heating system |
KR0157002B1 (ko) * | 1995-12-13 | 1999-02-18 | 배순훈 | 순환유량계산에 의한 난방수 제어방법 |
KR100257823B1 (ko) * | 1997-12-30 | 2000-06-01 | 윤종용 | 냉장고의오토아이스메이커 |
ES2147708B1 (es) * | 1998-07-07 | 2001-04-01 | Navarro Alfredo Sanchez | Sistema de control para calderas de calefaccion. |
KR100342131B1 (ko) * | 2000-01-20 | 2002-06-26 | 최성봉 | 보일러의 난방/급탕수제어장치 |
KR100409158B1 (ko) * | 2001-11-19 | 2003-12-12 | 주식회사 경동보일러 | 유량센서에 의한 보일러 난방제어방법 |
US6725167B2 (en) * | 2002-01-16 | 2004-04-20 | Fisher Controls International Llc | Flow measurement module and method |
GB2389890B8 (en) * | 2002-04-30 | 2011-01-05 | Electro Heat Plc | Flow boiler control system |
-
2005
- 2005-04-13 KR KR1020050030849A patent/KR100633593B1/ko not_active IP Right Cessation
-
2006
- 2006-04-12 EP EP06747355A patent/EP1869371A1/de not_active Withdrawn
- 2006-04-12 WO PCT/KR2006/001351 patent/WO2006109994A1/en active Application Filing
- 2006-04-12 US US11/911,650 patent/US20080156281A1/en not_active Abandoned
- 2006-04-12 JP JP2008506376A patent/JP2008536088A/ja not_active Withdrawn
- 2006-04-12 CN CNA2006800164556A patent/CN101175951A/zh active Pending
Non-Patent Citations (1)
Title |
---|
See references of WO2006109994A1 * |
Also Published As
Publication number | Publication date |
---|---|
JP2008536088A (ja) | 2008-09-04 |
US20080156281A1 (en) | 2008-07-03 |
WO2006109994A1 (en) | 2006-10-19 |
CN101175951A (zh) | 2008-05-07 |
KR100633593B1 (ko) | 2006-10-12 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US20080156281A1 (en) | Heating Control System | |
US11162627B2 (en) | Controller, method of operating a water source heat pump and a water source heat pump | |
KR101436071B1 (ko) | 개별난방 시스템 및 그 제어방법 | |
US20150108230A1 (en) | Multiple zone control system and method of operation | |
CN104204684B (zh) | Hvac系统的协调空气侧控制 | |
EP1957887A1 (de) | Vorrichtung zur verhinderung anfänglicher heisswasserzufuhr in wärmetauscher mit konzentrischen rohren und steuerverfahren dafür | |
KR101040692B1 (ko) | 차압정보를 이용한 비례유량조절시스템 | |
EP2307810A2 (de) | Heizsystem | |
GB2235970A (en) | Air conditioner having a refrigerant heater | |
US20070084939A1 (en) | Systems and methods of controlling a fan coil unit | |
WO2003081140A1 (fr) | Climatiseur et procede de commande de climatiseur | |
KR100753596B1 (ko) | 난방 제어시스템 및 난방 제어방법 | |
KR101007514B1 (ko) | 실내 온도 조절기와 난방 제어 방법, 그리고 난방 제어에이용되는 난방수 분배기 | |
EP1590607B1 (de) | Einrichtung zur regelung einer heizungsanlage | |
EP2622523B1 (de) | Warmwasserprioritiserung | |
US20090134233A1 (en) | Steam Control System | |
KR20100079407A (ko) | 공기조화기 및 그 동작방법 | |
JP6590747B2 (ja) | 浴室空調機 | |
EP3220061B1 (de) | Fluidzirkulationssystem | |
EP1486735B1 (de) | Kombinierte Anlage für Heizung und Brauchwasserbereitung | |
EP3525060B1 (de) | Flusssteuerungsmodul und verfahren zur steuerung des flusses in einem hydronischen system | |
KR100496806B1 (ko) | 다중 난방이 가능한 보일러 | |
JP2006292309A (ja) | 温水暖房装置 | |
WO1997017575A1 (en) | Liquid-circulation heating system and pump | |
JP2001208399A (ja) | 空調システムおよびその運転制御方法 |
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: 20071015 |
|
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 HU IE IS IT LI LT LU LV MC NL PL PT RO SE SI SK TR |
|
DAX | Request for extension of the european patent (deleted) | ||
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION HAS BEEN WITHDRAWN |
|
18W | Application withdrawn |
Effective date: 20090421 |