WO2001057466A1 - Module d'allumage de detonateur pour charge explosive, procede et outillage de fabrication d'un detonateur equipe d'un tel module - Google Patents
Module d'allumage de detonateur pour charge explosive, procede et outillage de fabrication d'un detonateur equipe d'un tel module Download PDFInfo
- Publication number
- WO2001057466A1 WO2001057466A1 PCT/FR2001/000279 FR0100279W WO0157466A1 WO 2001057466 A1 WO2001057466 A1 WO 2001057466A1 FR 0100279 W FR0100279 W FR 0100279W WO 0157466 A1 WO0157466 A1 WO 0157466A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- detonator
- plug
- cavity
- conductors
- ignition
- Prior art date
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F42—AMMUNITION; BLASTING
- F42B—EXPLOSIVE CHARGES, e.g. FOR BLASTING, FIREWORKS, AMMUNITION
- F42B3/00—Blasting cartridges, i.e. case and explosive
- F42B3/26—Arrangements for mounting initiators; Accessories therefor, e.g. tools
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F42—AMMUNITION; BLASTING
- F42B—EXPLOSIVE CHARGES, e.g. FOR BLASTING, FIREWORKS, AMMUNITION
- F42B3/00—Blasting cartridges, i.e. case and explosive
- F42B3/10—Initiators therefor
- F42B3/12—Bridge initiators
- F42B3/121—Initiators with incorporated integrated circuit
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F42—AMMUNITION; BLASTING
- F42D—BLASTING
- F42D1/00—Blasting methods or apparatus, e.g. loading or tamping
- F42D1/04—Arrangements for ignition
- F42D1/045—Arrangements for electric ignition
Definitions
- Detonator ignition module for explosive charge. Method and tool for manufacturing a detonator equipped with such a module.
- a standard detonator is in the form of a tubular rod filled with a detonating composition and a flammable material in which is embedded an ignition device intended to react when it is supplied with electrical energy.
- This ignition device can be a resistor which transforms electrical energy into heat, two electrodes between which electrical energy is transformed into an arc through the flammable material or a suitable dielectric.
- the cylindrical rod therefore comprises at l 'one of its ends two electrical conductors allowing connection to an external source of energy.
- electronic delay detonators which include an electronic circuit with a microcontroller allowing an exchange of information with the central fire control unit and through which an energy accumulator electric is charged and is discharged into the flammable material with a certain programmed delay.
- electronic delay detonators have existed for many years. They are in the form of a single piece product, the electronic part being connected from the manufacturing to the explosive part.
- This one-piece character generates very significant constraints relating to the explosive material of the detonator.
- strict regulations govern all stages of the life of such a product, which requires to satisfy it, to implement costly manufacturing, handling and transport procedures (special packaging).
- special packaging costly manufacturing, handling and transport procedures
- the air transport of these products is only authorized with very expensive special packaging having been approved by the competent national authority.
- the document EP 843 807 describes an electronic delay detonator with an assembly between the body of the electronic module and the detonator by means of a snap-on plug without further details as to the making of the electrical connections which seem to be be able to be carried out only in the factory, taking into account the complexity of the assembled elements.
- the present invention is intended to remedy these drawbacks, that is to say to offer an electronic module capable of being equipped with the explosive stick so that the assembly produced is certain to be operational and that this assembly can be carried out in a simple manner. from all standard detonators on the market.
- the invention firstly relates to an electronic module for a detonator comprising an electronic circuit encapsulated in a mass of hardened resin to which leads at least one input conductor and from which two output conductors form the line of ignition of a detonator, the mass of resin being housed in a tubular housing which extends beyond the mass of resin on the side of the ignition line to delimit a cavity.
- the output conductors have a length greater than the depth of the cavity and form a short-circuit ignition line outside the resin mass in the cavity, which is provided with a plug. removable end.
- This module having no explosive material can be manufactured, handled and transported in a banal way in any case without it being necessary to meet the requirements of the regulations relating to explosive materials.
- the output conductors forming a short circuit from the ignition line to the output of the resin mass constitute only one wire which closes on the electronic circuit, which is advantageous in several respects.
- Second, this short circuit carried out at the output of the electronic circuit is the guarantee of the complete discharge of the capacity which this electronic circuit comprises in known manner which forms accumulator of electric energy necessary for the ignition of the detonator. This guarantee of complete discharge of the energy accumulator will allow the connection of the electronic module to the detonator itself to be carried out in complete safety.
- the plug of the module according to the invention is produced in the form of a pad of elastically deformable material and the means for holding the detonator are formed simply by a central orifice in the plug which allows it to be force fitted the end of a detonator.
- the use of an elastomer plug ensures, at the same time as maintaining the detonator, the sealing of the assembly of the explosive stick with the electronic module and the protection of the electrical connections between them.
- Another advantage of the elastomer stopper lies in its capacity to receive, in the central orifice of detonators of different diameters, solely because of its radial elasticity.
- the plug has a head portion of which at least one external transverse dimension is greater than the corresponding internal transverse dimension of the cavity of the tubular housing.
- the plug will have a head portion with a larger diameter than the inside diameter of the cylinder so as to come to bear on the end of this cylinder by this projecting head.
- the section of the tubular housing can, without departing from the scope of the invention, be polygonal.
- a second object of the invention is a method for producing an electronic delay detonator consisting in assembling a standard detonator to a module having the above characteristics, process which consists in separating the casing from the plug, inserting the detonator into the plug by its end provided with ignition conductors, connecting the conductors of the detonator to the output conductors of the electronic circuit and replacing the cap fitted with the detonator in the cavity.
- the third object of the invention is a tool for implementing the assembly process when the cap has a head part as stated above, tool which is constituted by a gripping bell of the detonator equipped with the plug, this bell forming push-button for fitting the plug into the cavity of the electronic module.
- FIG. 1 is a sectional view of an electronic module according to the invention
- FIG. 2 illustrates the end of this module to be connected to the detonator
- FIG. 3 is a diagram in section of the detonator housed in the plug of the module
- FIGS. 4 and 5 are two views respectively in longitudinal section and at the end of a particular embodiment of the plug according to the invention.
- FIG. 6 is a diagram illustrating the use of a tool according to the invention when assembling the detonator and the electronic module
- FIG. 7 illustrates a second embodiment of FIG. 6,
- FIG. 8 is a partial detail view of the embodiment of FIG. 7.
- the electronic module represented in FIG. 1 comprises a cylindrical tube 1, preferably metallic, open at its two ends 2 and 3. Inside this tube an electronic card 4 with its components 5 and an energy accumulating capacity 6 is held in the tube by means of a hardened resin block 7.
- This resin can be poured into the tube fitted with the electronic circuit and hardened in the latter which acts as a mold.
- This block of resin flush with the end 2 of the tube, encapsulates the entire electronic circuit except for an input conductor 8 and an output line 9 intended for the ignition of a detonator.
- This block of resin secures the electronic circuit to the tubular housing 1 and seals this circuit.
- the resin block is terminated by a surface 10 which is distant from the end 3 of the tube 1.
- the plug 12 is forced into this cavity 11. It has a head portion 13 which, of larger diameter than the inside diameter of the tube, abuts by a shoulder on the end 3 of this tube.
- This plug is provided with a central orifice 14 which passes right through it while opening out on the side of the cavity 11 through a part of smaller diameter.
- FIG. 3 shows the plug 12 in the orifice 14 from which a detonator 15 with its supply conductors 16 threaded into the narrowed part of the orifice 14 has been forced into.
- connection of the conductors 9a and 9b to the conductors 16 will be done by means of connectors known per se 17 (see FIG. 4) which are in particular in common use in the field of telephony. These are connectors which act as staples bridging the conductors through their insulator by pressure and encapsulating the connection thus produced in a pasty product to ensure sealing. This connection is easy to make, since outside the cavity 11, thanks to the large length of the wires 9a and 9b which places their free end beyond the end of the tubular housing.
- an electronic delay detonator Before making the connection between the conductors 9a, 9b and 16, and after having fitted the detonator 15 into the plug 12, the latter will have been placed in a gripping bell 18, by fitting the head 13 of the plug into the opening of the latter sized for this purpose.
- the internal volume 19 of the bell constitutes an expansion volume of the gases of the detonator which would come to explode unexpectedly if, quite surprisingly, the capacity 6 of the electronic circuit was still charged at the time of the connection of the detonator to this circuit.
- the bell 18 then constitutes an effective protection of the operator who manipulates it by means of a handle 20 located opposite the opening of the bell.
- This handle can take any form, such as that of a screwdriver handle or that of a door knob.
- a plug 12 can be provided as shown in FIGS. 5 and 6, that is to say hollowed out in its thickness by three housings 21 partitioned by spacers 22 connecting an inner jacket 23 delimiting the orifice 14 and an outer jacket 24 coming into contact with the tube 1.
- a another way of limiting the creation of an overpressure in the cavity 11 when the plug is pushed into the open end of the tube 1 is to provide longitudinal grooves 12a on the fitting part of the plug which will form an exhaust vent air during most of the insertion of the plug into the cavity 11.
- the gripping bell 18 is here formed by a metal enclosure 21 with a bottom 22 whose center is pierced and shaped, around the bore, in a form 23 of centering corresponding to that of the top of the head 13 of the plug 12.
- the volume inside this enclosure 21 is filled with a relatively rigid cellular material 24 which has a housing 24a in line with the bottom 22 for frictionally accommodating the detonator 15 and which is extended opposite the bottom 22 by a part 25 external to the 'enclosure 21 forming a handle for handling the bell 18.
- This mass of foam is preferably enclosed in a film 26 of plastic material, for example heat-shrinkable which ensures the maintenance of the cellular material.
- the interest of this provision is mainly due to the fact that the cellular material forms an effective trap for debris or fragments of the detonator which would result from an untimely explosion.
- the envelope 21 can be in two parts (box with bottom plus cover screwed around the root of the handle 25) in order to make the part made of cellular material easily interchangeable.
- a bell 18 is shown which, for example, can be mounted on the mandrel of a tool for driving the plug into the electronic module, a tool having the form of a sensitive manual press with a tool. module holding station surmounted by a vertical mobile column fitted with the support mandrel of the Bell. This provision is mainly to be provided for the production of detonators with ignition module in the workshop.
- the particularity shown here is due to the structure of the cellular material in two adjacent blocks along a plane 27 which does not contain the axis of the detonator 15.
- the projections remain trapped in the cellular material while the explosion gas escapes from the bell, backwards at the level of the contact plane 27 by spreading the blocks of cellular material (foam) as illustrated in dotted lines in the figure.
- the rear part of the metal casing 21 will have an opening 28 of section roughly equal to that of its internal section so as not to restrict the section through which the explosion gases pass.
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Computer Hardware Design (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Air Bags (AREA)
Abstract
Description
Claims
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CA002369518A CA2369518C (fr) | 2000-02-02 | 2001-01-30 | Module d'allumage de detonateur pour charge explosive, procede et outillage de fabrication d'un detonateur equipe d'un tel module |
US09/958,017 US6513436B2 (en) | 2000-02-02 | 2001-01-30 | Ignition module for explosive content detonator, method and equipment for making a detonator equipped with same |
AU31935/01A AU3193501A (en) | 2000-02-02 | 2001-01-30 | Ignition module for explosive content detonator, method and equipment for makinga detonator equipped with same |
EP01903997A EP1166032A1 (fr) | 2000-02-02 | 2001-01-30 | Module d'allumage de detonateur pour charge explosive, procede et outillage de fabrication d'un detonateur equipe d'un tel module |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR00/01279 | 2000-02-02 | ||
FR0001279A FR2804503B1 (fr) | 2000-02-02 | 2000-02-02 | Module d'allumage de detonateur pour charge explosive. procede et outillage de fabrication d'un detonateur equipe d'un tel module |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2001057466A1 true WO2001057466A1 (fr) | 2001-08-09 |
Family
ID=8846560
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/FR2001/000279 WO2001057466A1 (fr) | 2000-02-02 | 2001-01-30 | Module d'allumage de detonateur pour charge explosive, procede et outillage de fabrication d'un detonateur equipe d'un tel module |
Country Status (6)
Country | Link |
---|---|
US (1) | US6513436B2 (fr) |
EP (1) | EP1166032A1 (fr) |
AU (1) | AU3193501A (fr) |
CA (1) | CA2369518C (fr) |
FR (1) | FR2804503B1 (fr) |
WO (1) | WO2001057466A1 (fr) |
Families Citing this family (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10123282A1 (de) * | 2001-05-12 | 2002-11-14 | Conti Temic Microelectronic | Pyrotechnische Zündeinrichtung mit integrierter Elektronikbaugruppe |
DE10123284A1 (de) * | 2001-05-12 | 2002-11-14 | Conti Temic Microelectronic | Pyrotechnische Zündeinrichtung mit integrierter Elektronikbaugruppe |
FR2832500B1 (fr) * | 2001-11-19 | 2004-06-18 | Delta Caps Internat Dci | Detonateur electronique pour explosifs |
FR2832499B1 (fr) * | 2001-11-19 | 2004-02-06 | Delta Caps Internat Dci | Module de commande electronique pour detonateur |
DE602005024757D1 (de) * | 2004-11-30 | 2010-12-30 | Weatherford Lamb | Nicht-explosiver Zweikomponenteninitiator |
JP5044983B2 (ja) * | 2006-05-16 | 2012-10-10 | タカタ株式会社 | イニシエータ、インフレータ及びエアバッグ装置 |
JP5044982B2 (ja) * | 2006-05-16 | 2012-10-10 | タカタ株式会社 | イニシエータ、インフレータ及びエアバッグ装置 |
US8863665B2 (en) * | 2012-01-11 | 2014-10-21 | Alliant Techsystems Inc. | Connectors for separable firing unit assemblies, separable firing unit assemblies, and related methods |
CN104457455B (zh) * | 2013-09-25 | 2019-01-22 | 北京铱钵隆芯科技有限责任公司 | 数码电子雷管点火控制模块组及其生产方法 |
MX2021007916A (es) * | 2019-01-28 | 2021-08-05 | Detnet South Africa Pty Ltd | Metodo de ensamblamiento de un detonador. |
CN110260729B (zh) * | 2019-07-04 | 2024-04-19 | 广西金建华民用爆破器材有限公司 | 一种电子雷管装配生产线 |
CN111440040B (zh) * | 2020-04-01 | 2023-06-02 | 北京凯米迈克科技有限公司 | 一种盒装基础雷管的全自动盒转模装置及盒转模方法 |
CN115111975B (zh) * | 2022-08-09 | 2024-05-10 | 重庆交通大学 | 炸药包雷管自动插入装置 |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR1494342A (fr) * | 1966-07-29 | 1967-09-08 | Charbonnages De France | Perfectionnement à une amorce électrique |
FR2159612A5 (en) * | 1971-11-05 | 1973-06-22 | Ridgeway John | Explosive detonator - with removable cover to contain ppremature ignition of detonator |
EP0555651A1 (fr) * | 1987-02-16 | 1993-08-18 | Nitro Nobel Ab | Détonateur |
CA2132148A1 (fr) | 1994-09-15 | 1996-03-16 | Thierry Bernard | Detonateur pour charge explosive |
EP0843807A1 (fr) | 1995-07-26 | 1998-05-27 | Asahi Kasei Kogyo Kabushiki Kaisha | Detonateur electronique a retardement |
Family Cites Families (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2511669A (en) * | 1945-10-20 | 1950-06-13 | Du Pont | Ignition composition |
US2506157A (en) * | 1945-11-29 | 1950-05-02 | Marcel Gaupillat Ets | Delay action blasting cap |
US4002122A (en) * | 1961-03-02 | 1977-01-11 | Mb Associates | Microjet fuse |
US3615287A (en) * | 1969-10-31 | 1971-10-26 | Favian M Adair | Igniter |
GB1494342A (en) | 1974-04-03 | 1977-12-07 | Nat Res Dev | Automatic control of crystal growth |
DE3419540C1 (de) | 1984-05-25 | 1985-11-28 | Didier-Werke Ag, 6200 Wiesbaden | Mehrlagiges Isolierbauteil |
DE8905896U1 (fr) * | 1989-05-11 | 1989-08-17 | Bayern-Chemie Gesellschaft Fuer Flugchemische Antriebe Mbh, 8261 Aschau, De | |
US5179249A (en) * | 1991-04-05 | 1993-01-12 | The United States Of America As Represented By The Administrator Of The National Aeronautics And Space Administration | Performance of blasting caps |
US5688416A (en) * | 1995-06-01 | 1997-11-18 | Fmc Corp | Stabilized plasma arc injector |
US5686691A (en) * | 1995-12-22 | 1997-11-11 | Oea, Inc. | Slurry-loadable electrical initiator |
US5780765A (en) * | 1997-02-18 | 1998-07-14 | Dyben; Jerry F. | Pyrogen compound kit for an electrical model rocket ignitor |
DE29915056U1 (de) * | 1999-08-27 | 2000-01-27 | Trw Airbag Sys Gmbh & Co Kg | Zündereinheit für einen Gasgenerator |
US6363828B1 (en) * | 2000-03-30 | 2002-04-02 | The United States Of America As Represented By The Secretary Of The Navy | Shock driven projectile device |
-
2000
- 2000-02-02 FR FR0001279A patent/FR2804503B1/fr not_active Expired - Fee Related
-
2001
- 2001-01-30 EP EP01903997A patent/EP1166032A1/fr not_active Withdrawn
- 2001-01-30 CA CA002369518A patent/CA2369518C/fr not_active Expired - Fee Related
- 2001-01-30 AU AU31935/01A patent/AU3193501A/en not_active Abandoned
- 2001-01-30 WO PCT/FR2001/000279 patent/WO2001057466A1/fr not_active Application Discontinuation
- 2001-01-30 US US09/958,017 patent/US6513436B2/en not_active Expired - Fee Related
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR1494342A (fr) * | 1966-07-29 | 1967-09-08 | Charbonnages De France | Perfectionnement à une amorce électrique |
FR2159612A5 (en) * | 1971-11-05 | 1973-06-22 | Ridgeway John | Explosive detonator - with removable cover to contain ppremature ignition of detonator |
EP0555651A1 (fr) * | 1987-02-16 | 1993-08-18 | Nitro Nobel Ab | Détonateur |
CA2132148A1 (fr) | 1994-09-15 | 1996-03-16 | Thierry Bernard | Detonateur pour charge explosive |
EP0843807A1 (fr) | 1995-07-26 | 1998-05-27 | Asahi Kasei Kogyo Kabushiki Kaisha | Detonateur electronique a retardement |
EP0843807B1 (fr) * | 1995-07-26 | 1999-09-22 | Asahi Kasei Kogyo Kabushiki Kaisha | Detonateur electronique a retardement |
Also Published As
Publication number | Publication date |
---|---|
AU3193501A (en) | 2001-08-14 |
EP1166032A1 (fr) | 2002-01-02 |
FR2804503B1 (fr) | 2002-11-22 |
CA2369518A1 (fr) | 2001-08-09 |
FR2804503A1 (fr) | 2001-08-03 |
CA2369518C (fr) | 2005-04-05 |
US6513436B2 (en) | 2003-02-04 |
US20020152913A1 (en) | 2002-10-24 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CA2369518C (fr) | Module d'allumage de detonateur pour charge explosive, procede et outillage de fabrication d'un detonateur equipe d'un tel module | |
EP0008643B1 (fr) | Embout de connexion pour câble conducteur d'énergie, et procédé de montage dudit embout | |
FR2674177A1 (fr) | Procede pour noyer dans de la resine l'interieur d'un appareil electrique tel que detecteur de proximite, et appareil electrique s'y rapportant. | |
EP3239648B1 (fr) | Dispositif renforcateur d'amorcage | |
FR2557689A1 (fr) | Initiateur pyrotechnique utilisant une prise coaxiale | |
FR3017205A1 (fr) | Charge creuse et application pour la separation de deux etages d'un engin aeronautique ou sa neutralisation | |
EP1181498A1 (fr) | Tube allumeur pour une munition d'artillerie | |
EP0240375B1 (fr) | Dispositif de liaison entre une mèche de mise à feu d'un produit pyrotecnique et un inflammateur | |
EP0038010A1 (fr) | Dispositif de moulage de pièces tubulaires par compression isostatique | |
FR2475306A1 (fr) | Boite de jonction universelle pour cables de telecommunications ou de puissance | |
FR2984483A1 (fr) | Munition, chargement pour une telle munition et procede de fabrication d'une telle munition | |
EP0593344A1 (fr) | Système de raccordement des enveloppes de deux appareils dont l'un au moins est sous pression | |
CA2434594A1 (fr) | Procede de sertissage d'un contact sur des brins d'un cable | |
EP0526315B1 (fr) | Contacteur électrique à commande pyrotechnique | |
CA2434592A1 (fr) | Dispositif de liaison entre un cable et un element de contact | |
EP0526316B1 (fr) | Munition en particulier du type télescopé | |
FR2526335A1 (fr) | Organe de transmission a noyau flottant propre notamment a l'assistance ultrasonique d'un quelconque traitement, et application en particulier au compactage et au trefilage | |
EP0063995B1 (fr) | Obus explosif libérant des éclats préfragmentés et son procédé de fabrication | |
FR2866702A1 (fr) | Element de liaison pour une chaine pyrotechnique de mise a feu d'un artifice de divertissement | |
EP1413814A1 (fr) | Raccord à sertir à sécurité renforcée | |
BE1015204A3 (fr) | Connectique entre un lanceur militaire et des munitions resistant a l'encrassage. | |
FR2863351A1 (fr) | Batterie d'artifices de divertissement comportant des moyens de chainage a d'autres batteries semblables | |
WO2004024220A1 (fr) | Valve de distribution de produit fluide et dispositif de distribution de produit fluide comportant une telle valve | |
FR2632396A1 (fr) | Projectile destine a disperser une pluralite de leurres electromagnetiques | |
CA3154857A1 (fr) | Dispositif d'echappement anti propagation de batteries lithium-ion d'aeronef |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
AK | Designated states |
Kind code of ref document: A1 Designated state(s): AE AG AL AM AT AU AZ BA BB BG BR BY BZ CA CH CN CR CU CZ DE DK DM DZ EE ES FI GB GD GE GH GM HR HU ID IL IN IS JP KE KG KP KR KZ LC LK LR LS LT LU LV MA MD MG MK MN MW MX MZ NO NZ PL PT RO RU SD SE SG SI SK SL TJ TM TR TT TZ UA UG US UZ VN YU ZA ZW |
|
AL | Designated countries for regional patents |
Kind code of ref document: A1 Designated state(s): GH GM KE LS MW MZ SD SL SZ TZ 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 TR BF BJ CF CG CI CM GA GN GW ML MR NE SN TD TG |
|
WWE | Wipo information: entry into national phase |
Ref document number: 2001903997 Country of ref document: EP |
|
ENP | Entry into the national phase |
Ref document number: 2369518 Country of ref document: CA Ref country code: CA Ref document number: 2369518 Kind code of ref document: A Format of ref document f/p: F |
|
WWE | Wipo information: entry into national phase |
Ref document number: 09958017 Country of ref document: US |
|
121 | Ep: the epo has been informed by wipo that ep was designated in this application | ||
WWP | Wipo information: published in national office |
Ref document number: 2001903997 Country of ref document: EP |
|
REG | Reference to national code |
Ref country code: DE Ref legal event code: 8642 |
|
NENP | Non-entry into the national phase |
Ref country code: JP |
|
WWW | Wipo information: withdrawn in national office |
Ref document number: 2001903997 Country of ref document: EP |