WO1998057099A1 - Method for operating a stove in a building, and a device for carrying out this method - Google Patents
Method for operating a stove in a building, and a device for carrying out this method Download PDFInfo
- Publication number
- WO1998057099A1 WO1998057099A1 PCT/NO1998/000160 NO9800160W WO9857099A1 WO 1998057099 A1 WO1998057099 A1 WO 1998057099A1 NO 9800160 W NO9800160 W NO 9800160W WO 9857099 A1 WO9857099 A1 WO 9857099A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- building
- air
- furnace
- fan
- tube
- Prior art date
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23L—SUPPLYING AIR OR NON-COMBUSTIBLE LIQUIDS OR GASES TO COMBUSTION APPARATUS IN GENERAL ; VALVES OR DAMPERS SPECIALLY ADAPTED FOR CONTROLLING AIR SUPPLY OR DRAUGHT IN COMBUSTION APPARATUS; INDUCING DRAUGHT IN COMBUSTION APPARATUS; TOPS FOR CHIMNEYS OR VENTILATING SHAFTS; TERMINALS FOR FLUES
- F23L5/00—Blast-producing apparatus before the fire
- F23L5/02—Arrangements of fans or blowers
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23L—SUPPLYING AIR OR NON-COMBUSTIBLE LIQUIDS OR GASES TO COMBUSTION APPARATUS IN GENERAL ; VALVES OR DAMPERS SPECIALLY ADAPTED FOR CONTROLLING AIR SUPPLY OR DRAUGHT IN COMBUSTION APPARATUS; INDUCING DRAUGHT IN COMBUSTION APPARATUS; TOPS FOR CHIMNEYS OR VENTILATING SHAFTS; TERMINALS FOR FLUES
- F23L15/00—Heating of air supplied for combustion
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24B—DOMESTIC STOVES OR RANGES FOR SOLID FUELS; IMPLEMENTS FOR USE IN CONNECTION WITH STOVES OR RANGES
- F24B7/00—Stoves, ranges or flue-gas ducts, with additional provisions for convection heating
- F24B7/005—Flue-gas ducts
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/0001—Control or safety arrangements for ventilation
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/0001—Control or safety arrangements for ventilation
- F24F2011/0002—Control or safety arrangements for ventilation for admittance of outside air
- F24F2011/0004—Control or safety arrangements for ventilation for admittance of outside air to create overpressure in a room
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A40/00—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production
- Y02A40/90—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in food processing or handling, e.g. food conservation
- Y02A40/924—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in food processing or handling, e.g. food conservation using renewable energies
- Y02A40/928—Cooking stoves using biomass
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E20/00—Combustion technologies with mitigation potential
- Y02E20/34—Indirect CO2mitigation, i.e. by acting on non CO2directly related matters of the process, e.g. pre-heating or heat recovery
Definitions
- the invention relates to a method for operation of a combustion furnace in a house or similar, and a device to carry out such a method.
- Gasses can originate from the foundation or may be secreted from cigarettes, products in the building or from pollution.
- the main object of the invention is to create a method and a device of the said kind, which better utilizes the heat energy which is created in the combustion, and which offers a more uniform allocation of the temperature over the whole area which is to be heated.
- a special object is to draw in outdoor air, and supply it so that these conditions are optimal.
- a further object is to raise the temperature at the coldest places in the area which are to be heated, where there may be poor insulation and/or draught, e.g. to avoid condensation of moisture.
- Another object is to remove cold air and undesirable gasses from the building.
- the method according to the invention is stated in patent claim 1 , dependent claims states the advantageous details. Further patent claims 4-8 describe an embodiment of the device which is suited to carry out the method.
- the invention relates in one respect to a method for utilizing the heat energy of a furnace, in a building such as a house, whereby the inside of the building is supplied with fresh outdoor air by a fan device, and this air is heat exchanged with the smoke tube of the furnace and released into the interior of the house.
- the interior of the building is supplied with enough out- door air to establish an overpressure compared to the pressure outside the building.
- the technical effect following use of combustion furnaces in buildings with an interior overpressure, made of preheated outdoor air, is that drifting of cold outdoor air through the ordinary leakage-points of the house, for example windows, door frames, and keyholes, are eliminated.
- the net positive effect of this is that the temperature of the air in the building generally becomes more uniform, and the danger of formation of moisture and rot damage at the ordinary leakage points is reduced.
- overpressure means that a differential pressure should be established which is sufficient to reverse the air current in leakage points and air exhaust lines, to a small outgoing current, which in turn will be sufficient to establish the technical effect which is sought by the invention. Therefore there are moderate claims to the effect of the fan.
- the preheated fresh air is advantageously led straight to the area by the furnace.
- the preheating of the air can take place in an arbitrary familiar way, for example by using a mantel around the smoke tube.
- Such a technical solution requires a small building volume, and consequently low costs for installation and maintenance.
- the outlet device can in its simplest form, be the natural leakage points in the house, for example a valve, but particularly in newer buildings it is preferred to use a dedicated outlet device, for example a dedicated overflow valve which is shaped for this object. It is preferred that the overflow valve is placed at normally cold places, for example at the floor level in lower places in the building.
- the overflow valve is a self- regulating check valve, especially a membrane valve, which is arranged to close when the external pressure is higher than the pressure in the interior of the building, and to open at a pressure which is insignificant higher than the outdoor pressure.
- the overflow valve can be a distant regulated valve, connected to a regulator which coordinates intensity of the fan for supply of outdoor air, and opening of the outlet device via pressure values which are registered at pressure sensors for measuring the differential pressure between outdoor and the interior of the building.
- a regulator which coordinates intensity of the fan for supply of outdoor air
- pressure values which are registered at pressure sensors for measuring the differential pressure between outdoor and the interior of the building.
- Fig.1 shows a schematical section through a device according to the invention
- Fig. 2 shows a section through an inlet device
- Fig. 3 shows a section through an outlet device
- Fig. 4 shows a side section of an furnace for use in a device according to the invention.
- Fig. 1 shows a building 11, e.g. a house, which in this case is simplified to an inner
- a smokepipe 16 In the bulkhead 15 between the two rooms, is placed a smokepipe 16. In the bulkhead 15 there also exists a door opening, but this is not shown. Close to the smokepipe 16 is installed a wood-burning stove 17 with a smoketube 18 into the smokepipe.
- the wood-burning stove 17 could alternatively be a furnace or open fireplace, possible for burning fuels other than fire wood.
- an inlet device 19 (Fig. 2) comprising a tube 20 with a damper 21 outside and a grid 22 inside. Inside the tube there is placed a fan 23 for induction of air from the atmosphere outside of the building 11 and into the building.
- the tube 20, is on the inside, connected
- the fan 23 can be controlled by a thermostat (not shown) that is placed at the smok- tube 18, or another part of the furnace which will be heated rapidly as combustion begins.
- the thermostat may, for example, be set to start the fan at a temperature of about
- a pressure sensor may be arranged at the outer wall, that either indirectly or directly makes it possible to set the fan capacity such that an interior overpressure is developed.
- known components and connections may be used.
- a manually controlled electronic regulator may possibly be used to control the fan 23.
- an outlet device 25 is provided at the floor near the front door 14, in the outer wall of the outer room 13.
- the temperature in this area is lowest in the building.
- this area is where the concentration of undesirable gasses will be highest. It is possible to utilize more such outlet devices distributed in the building, and these would also be advantageously placed low, and close to areas with low temperature.
- Fig. 3 shows an outlet device 25 comprising a tube 26 with an outward and an inward grid 27, 28 respectively. In each end of the tube 26 there is placed a ring 29, 30 with a hanging membrane 31, 32 which ensures one-way air passage, i.e.
- the rings may be slightly slanting, for example until 5 °.
- the condition required is that the membranes or alternatively valve elements, react upon low overpressures, that is, down against 0 bar.
- Fig. 4 shows a wood-burning stove 17 with a two-piece mantel 33, 34 around the smoketube 18, the two mantel halves might be identical, with a pipe socket 35 down against the smoke channel 24 from the inlet device (Fig. 1), and a pipe socket 36 up- wards with a baffle 37 that distributes outflowing air over the upper side of the stove 17.
- the smoketube 18 With new catalyst-stoves the smoketube 18 will have an essentially higher temperature than in the past because of the afterburning effect, and thereby offering a basis for a better utilization of the heat energy.
- the mantel 33, 34 will protect against touch of the hot smoke tube 18. This is particularly valuable initially when the stove is heating, as the smoke tube 18 has gained already a dangerously high temperature.
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Solid-Fuel Combustion (AREA)
- Vending Machines For Individual Products (AREA)
- Electric Stoves And Ranges (AREA)
- Regulation And Control Of Combustion (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Saccharide Compounds (AREA)
- Portable Nailing Machines And Staplers (AREA)
- Central Heating Systems (AREA)
- Electric Ovens (AREA)
- Transition And Organic Metals Composition Catalysts For Addition Polymerization (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Separation By Low-Temperature Treatments (AREA)
- Air Supply (AREA)
- Floor Finish (AREA)
- Steam Or Hot-Water Central Heating Systems (AREA)
Priority Applications (8)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE69803305T DE69803305T2 (de) | 1997-05-30 | 1998-05-29 | Verfahren zum betrieb eines ofens in einem gebäude und vorrichtung zur durchführung des verfahrens |
AT98924682T ATE209322T1 (de) | 1997-05-30 | 1998-05-29 | Verfahren zum betrieb eines ofens in einem gebäude und vorrichtung zur durchführung des verfahrens |
US09/424,231 US6321997B1 (en) | 1997-05-30 | 1998-05-29 | Method for operating a stove in a building, and a device for carrying out this method |
CA002291752A CA2291752C (en) | 1997-05-30 | 1998-05-29 | Method for operating a stove in a building, and a device for carrying out this method |
PL98337121A PL187483B1 (pl) | 1997-05-30 | 1998-05-29 | Sposób i układ do obsługi urządzenia spalającego w domu lub tym podobnym budynku |
JP50109199A JP2002508828A (ja) | 1997-05-30 | 1998-05-29 | 建物内でストーブを操作するための方法およびこの方法を実施するための装置 |
AU76786/98A AU7678698A (en) | 1997-05-30 | 1998-05-29 | Method for operating a stove in a building, and a device for carrying out this method |
EP98924682A EP1015822B1 (en) | 1997-05-30 | 1998-05-29 | Method for operating a stove in a building, and a device for carrying out this method |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
NO972469 | 1997-05-30 | ||
NO972469A NO309114B1 (no) | 1997-05-30 | 1997-05-30 | FremgangsmÕte og et apparat for utnyttelse av energi fra en forbrenningsovn |
Publications (1)
Publication Number | Publication Date |
---|---|
WO1998057099A1 true WO1998057099A1 (en) | 1998-12-17 |
Family
ID=19900767
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/NO1998/000160 WO1998057099A1 (en) | 1997-05-30 | 1998-05-29 | Method for operating a stove in a building, and a device for carrying out this method |
Country Status (12)
Country | Link |
---|---|
US (1) | US6321997B1 (no) |
EP (1) | EP1015822B1 (no) |
JP (1) | JP2002508828A (no) |
AT (1) | ATE209322T1 (no) |
AU (1) | AU7678698A (no) |
CA (1) | CA2291752C (no) |
DE (1) | DE69803305T2 (no) |
ES (1) | ES2168762T3 (no) |
NO (1) | NO309114B1 (no) |
PL (1) | PL187483B1 (no) |
PT (1) | PT1015822E (no) |
WO (1) | WO1998057099A1 (no) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6742516B2 (en) * | 2000-08-07 | 2004-06-01 | Woodlane Environmental Technology, Inc. | Ventilation system and method |
JP2006281077A (ja) * | 2005-03-31 | 2006-10-19 | Shizen Club:Kk | 暖房器用排煙濾過装置 |
DE102006007814B4 (de) * | 2006-02-17 | 2008-01-24 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Vorrichtung zur Unterstützung eines sicheren Betriebes einer in einem Aufstellraum vorgesehenen Feuerstelle |
US10603983B2 (en) * | 2017-03-13 | 2020-03-31 | Cnh Industrial America Llc | Pressurization system for an agricultural machine |
Citations (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2610565A (en) * | 1946-12-14 | 1952-09-16 | William W Stuart | Means for controlling air pressure in buildings |
US3951336A (en) * | 1974-08-28 | 1976-04-20 | Miller And Sons Structures, Inc. | Ventilation system for livestock housing |
US4043256A (en) * | 1974-03-11 | 1977-08-23 | U.S. Industries, Inc. | Animal enclosure with pressure controlled ventilation inlet and deflection means |
US4196715A (en) * | 1977-11-07 | 1980-04-08 | Shaw's Modular Fireplaces, Ltd. | Fireplace converter |
US4262608A (en) * | 1979-06-14 | 1981-04-21 | Jackson Bert W | Method and apparatus for powered flue products exhaust and preheated combustion air supply |
US4270513A (en) * | 1979-08-22 | 1981-06-02 | Mitchelson Mark M | Fireplace flue heat exchanger and control |
US4280474A (en) * | 1979-10-09 | 1981-07-28 | Ruegg Sr Harvey L | Heat hugger |
US4286975A (en) * | 1979-10-02 | 1981-09-01 | Whiteley Isaac C | Chimney heat exchanger |
US4325509A (en) * | 1979-10-09 | 1982-04-20 | Base Leonard C | Home heating apparatus |
GB2237375A (en) * | 1989-09-07 | 1991-05-01 | Dunsley Heat Ltd | Stabilizing draught in flue systems |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US169300A (en) * | 1875-10-26 | Improvement in ventilating buildings | ||
US3611906A (en) * | 1969-07-24 | 1971-10-12 | Ranco Inc | Ventilating system and control therefor |
US4022117A (en) * | 1975-03-12 | 1977-05-10 | Mallian Robert J | Pressure stabilizing assembly |
US4184538A (en) * | 1977-12-22 | 1980-01-22 | Rauenhorst George W | Ventilating heat exchanger for barns |
US4538508A (en) * | 1980-10-03 | 1985-09-03 | Jimco Products | Roof ventilator having fluid flow control and method of making same |
US4498624A (en) * | 1984-05-07 | 1985-02-12 | Kogut Jimmy A | Control unit with separate dampers for make-up and combustion air circulation |
US5131887A (en) * | 1989-12-27 | 1992-07-21 | Don E. Reiner | Pressure controlled fresh air supply ventilation system using soil gas pressure as a reference, and method of use |
US5191874A (en) * | 1991-06-13 | 1993-03-09 | Mcwilliams Oliver B | Heavy gas, including radon gas, expeller assembly |
FR2751733B1 (fr) * | 1996-07-23 | 1998-09-04 | Gec Alsthom Transport Sa | Dispositif et procede de regulation de la pression interne d'un espace clos ventile soumis a des variations de pression exterieure |
-
1997
- 1997-05-30 NO NO972469A patent/NO309114B1/no not_active Application Discontinuation
-
1998
- 1998-05-29 US US09/424,231 patent/US6321997B1/en not_active Expired - Fee Related
- 1998-05-29 AU AU76786/98A patent/AU7678698A/en not_active Abandoned
- 1998-05-29 EP EP98924682A patent/EP1015822B1/en not_active Expired - Lifetime
- 1998-05-29 PL PL98337121A patent/PL187483B1/pl not_active IP Right Cessation
- 1998-05-29 CA CA002291752A patent/CA2291752C/en not_active Expired - Fee Related
- 1998-05-29 JP JP50109199A patent/JP2002508828A/ja active Pending
- 1998-05-29 AT AT98924682T patent/ATE209322T1/de not_active IP Right Cessation
- 1998-05-29 PT PT98924682T patent/PT1015822E/pt unknown
- 1998-05-29 DE DE69803305T patent/DE69803305T2/de not_active Expired - Fee Related
- 1998-05-29 WO PCT/NO1998/000160 patent/WO1998057099A1/en not_active Application Discontinuation
- 1998-05-29 ES ES98924682T patent/ES2168762T3/es not_active Expired - Lifetime
Patent Citations (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2610565A (en) * | 1946-12-14 | 1952-09-16 | William W Stuart | Means for controlling air pressure in buildings |
US4043256A (en) * | 1974-03-11 | 1977-08-23 | U.S. Industries, Inc. | Animal enclosure with pressure controlled ventilation inlet and deflection means |
US3951336A (en) * | 1974-08-28 | 1976-04-20 | Miller And Sons Structures, Inc. | Ventilation system for livestock housing |
US4196715A (en) * | 1977-11-07 | 1980-04-08 | Shaw's Modular Fireplaces, Ltd. | Fireplace converter |
US4262608A (en) * | 1979-06-14 | 1981-04-21 | Jackson Bert W | Method and apparatus for powered flue products exhaust and preheated combustion air supply |
US4270513A (en) * | 1979-08-22 | 1981-06-02 | Mitchelson Mark M | Fireplace flue heat exchanger and control |
US4286975A (en) * | 1979-10-02 | 1981-09-01 | Whiteley Isaac C | Chimney heat exchanger |
US4280474A (en) * | 1979-10-09 | 1981-07-28 | Ruegg Sr Harvey L | Heat hugger |
US4325509A (en) * | 1979-10-09 | 1982-04-20 | Base Leonard C | Home heating apparatus |
GB2237375A (en) * | 1989-09-07 | 1991-05-01 | Dunsley Heat Ltd | Stabilizing draught in flue systems |
Also Published As
Publication number | Publication date |
---|---|
ES2168762T3 (es) | 2002-06-16 |
ATE209322T1 (de) | 2001-12-15 |
EP1015822B1 (en) | 2001-11-21 |
US6321997B1 (en) | 2001-11-27 |
DE69803305T2 (de) | 2002-07-25 |
PL187483B1 (pl) | 2004-07-30 |
AU7678698A (en) | 1998-12-30 |
NO309114B1 (no) | 2000-12-11 |
EP1015822A1 (en) | 2000-07-05 |
PL337121A1 (en) | 2000-07-31 |
PT1015822E (pt) | 2002-05-31 |
CA2291752C (en) | 2008-01-15 |
JP2002508828A (ja) | 2002-03-19 |
NO972469L (no) | 1998-12-01 |
CA2291752A1 (en) | 1998-12-17 |
NO972469D0 (no) | 1997-05-30 |
DE69803305D1 (de) | 2002-02-21 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CA1297749C (en) | Direct-vented gas fireplace | |
US4043313A (en) | Fireplace chimney furnace | |
AU771260B2 (en) | Dual mode of operation fireplaces for operation in vented or unvented mode | |
CN201344707Y (zh) | 热泵烘房 | |
JP2944983B2 (ja) | 共通配置の煙道流入口及び流出口を備えた水ヒータ | |
US4175538A (en) | Energy saving furnace construction | |
US4294223A (en) | Bi-loop heat recovery system for an oil fired furnace | |
EP1015822B1 (en) | Method for operating a stove in a building, and a device for carrying out this method | |
US4300527A (en) | Bi-loop heat recovery system | |
EP3045814B1 (en) | Collective concentric flue duct | |
RU10847U1 (ru) | Печь бытовая отопительно-варочная | |
GB2275099A (en) | Heating assemblies having a chimney | |
US2776656A (en) | Down draft eliminator | |
US4263888A (en) | Home heating plant | |
CZ416799A3 (cs) | Způsob provozování spalovacího zařízení v budově a zařízení k provádění tohoto způsobu | |
JPS6370745A (ja) | 家屋 | |
RU2282111C1 (ru) | Устройство для теплосберегающей вентиляции помещения | |
CA1262846A (en) | Fireplace heat absorbing and transmitting apparatus | |
RU2145690C1 (ru) | Отопительная система | |
CN2415308Y (zh) | 热风机 | |
CA1059397A (en) | Fireplace chimney furnace | |
KR101562947B1 (ko) | 구들형 실내난방장치 | |
Exhaust | bedroom house | |
CA1086592A (en) | Heating apparatus | |
US90976A (en) | Henry weiite |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
AK | Designated states |
Kind code of ref document: A1 Designated state(s): AL AM AT AU AZ BA BB BG BR BY CA CH CN CU CZ DE DK EE ES FI GB GE GH GM GW HU ID IL IS JP KE KG KP KR KZ LC LK LR LS LT LU LV MD MG MK MN MW MX NO NZ PL PT RO RU SD SE SG SI SK SL TJ TM TR TT UA UG US UZ VN YU ZW |
|
AL | Designated countries for regional patents |
Kind code of ref document: A1 Designated state(s): GH GM KE LS MW SD SZ UG ZW AM AZ BY KG KZ MD RU TJ TM AT BE CH CY DE DK ES FI FR GB GR IE IT LU MC NL PT SE BF BJ CF CG CI CM GA GN ML MR NE SN TD TG |
|
DFPE | Request for preliminary examination filed prior to expiration of 19th month from priority date (pct application filed before 20040101) | ||
121 | Ep: the epo has been informed by wipo that ep was designated in this application | ||
WWE | Wipo information: entry into national phase |
Ref document number: PV1999-4167 Country of ref document: CZ |
|
ENP | Entry into the national phase |
Ref document number: 2291752 Country of ref document: CA Ref country code: CA Ref document number: 2291752 Kind code of ref document: A Format of ref document f/p: F |
|
WWE | Wipo information: entry into national phase |
Ref document number: 1998924682 Country of ref document: EP |
|
WWE | Wipo information: entry into national phase |
Ref document number: 09424231 Country of ref document: US |
|
REG | Reference to national code |
Ref country code: DE Ref legal event code: 8642 |
|
WWP | Wipo information: published in national office |
Ref document number: PV1999-4167 Country of ref document: CZ |
|
WWP | Wipo information: published in national office |
Ref document number: 1998924682 Country of ref document: EP |
|
WWG | Wipo information: grant in national office |
Ref document number: 1998924682 Country of ref document: EP |
|
WWW | Wipo information: withdrawn in national office |
Ref document number: PV1999-4167 Country of ref document: CZ |