EP1105618A1 - Vorrichtung zum bohren und drainagieren von löchern in boden- oder gesteinsmaterial - Google Patents
Vorrichtung zum bohren und drainagieren von löchern in boden- oder gesteinsmaterialInfo
- Publication number
- EP1105618A1 EP1105618A1 EP99939259A EP99939259A EP1105618A1 EP 1105618 A1 EP1105618 A1 EP 1105618A1 EP 99939259 A EP99939259 A EP 99939259A EP 99939259 A EP99939259 A EP 99939259A EP 1105618 A1 EP1105618 A1 EP 1105618A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- cladding tube
- tube
- drill bit
- filter tube
- filter
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B7/00—Special methods or apparatus for drilling
- E21B7/20—Driving or forcing casings or pipes into boreholes, e.g. sinking; Simultaneously drilling and casing boreholes
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
- E21B43/02—Subsoil filtering
- E21B43/10—Setting of casings, screens, liners or the like in wells
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D3/00—Improving or preserving soil or rock, e.g. preserving permafrost soil
- E02D3/02—Improving by compacting
- E02D3/10—Improving by compacting by watering, draining, de-aerating or blasting, e.g. by installing sand or wick drains
Definitions
- the present invention relates to a device for drilling, in particular percussion or rotary percussion drilling, and drainage of holes in soil or rock material, wherein a drill bit mounted on a drill pipe forms a drill hole and a cladding tube is coupled to the drill pipe or the drill bit, wherein the cladding tube is formed in the area adjoining the drill bit with at least one passage opening which opens into an annular space formed between the drill pipe and the cladding tube.
- a device of this type can be found, for example, in WO 98/21439, which discloses a method and a device for simultaneously drilling and lining holes.
- a cladding tube surrounding a drill pipe which acts on a drill bit, provides an annular space between the cladding pipe and the outer circumference of the drill pipe, wherein, for example, at least one passage opening is provided in the cladding pipe in the area immediately adjacent to the drill bit, via which material is removed can subsequently be brought out of the borehole to be produced.
- this passage opening it is naturally also possible to use this passage opening to bring water from the borehole located directly in the area of the drill bit, so that this known device can be used to drain or drain a borehole in the foremost section in the area of the drill bit.
- the present invention thus aims to provide a device of the type mentioned at the beginning with which not only drilling, in particular impact or rotary impact drilling, of a borehole is possible, but with which, if desired, additional targeted drainage or drainage of the Bore surrounding rock material, especially after completion of the borehole, is possible.
- the device according to the invention for drilling, in particular percussion or rotary percussion drilling, and draining holes in soil or rock material, starting from a device of the type mentioned at the outset is essentially characterized in that in the end region adjoining the drill bit, the cladding tube of is surrounded by at least one filter tube, which is formed with a large number of through openings or slots which are in particular arranged uniformly distributed over the circumference.
- an additional filter tube which surrounds the cladding tube is provided, can be targeted both during the drilling process and subsequently after the formation of a borehole drainage or drainage of soil or rock material surrounding the borehole can be carried out in particular over a large length of the borehole.
- a corresponding filter effect can be achieved by the corresponding arrangement and design or dimensioning of the passage openings or passage slots in the at least one filter tube, and only fluid to be discharged after filtering is introduced into and removed from the annular space or free space defined by the cladding tube and the drill pipe brought down the borehole. This filter effect over a large length of the bore can also, for example after removing the drill pipe with parts of the drill bit are maintained.
- the filter tube surrounds the cladding tube with the formation of a further annular space.
- the annular space formed between the outer circumference of the cladding tube and the inner diameter of the filter tube has a clear passage width of at least 1 mm, in particular about 1.5 mm, as is preferred by another Embodiment of the device according to the invention corresponds.
- Such a clear cross-sectional area or such a dimensioning of the annular space between the outer circumference of the cladding tube and the inner circumference of the filter tube is usually sufficient to allow the fluid to be drained to be properly drained into the interior of the cladding tube, while at the same time ensuring that the Borehole no excessive or no enlargement of the borehole diameter or borehole cross-section is required in order to take into account the additional dimensions of the filter tube surrounding the cladding tube, so that there is no additional expenditure for producing the bore.
- annular space is arranged between spacers arranged between the cladding tube and the filter tube or in particular in the end regions of the filter tube provided sleeve elements is defined, so that even over longer lengths of a filter section the for a proper The required annular space between the cladding tube and the filter tube is maintained.
- the filter tube have equidistant passage slots with a width of about 0.5 mm in each case over its circumference is formed to about 1 mm, as this corresponds to a further preferred embodiment of the device according to the invention.
- the cladding pipe in the is surrounded by the section surrounded by the filter tube with a plurality of in particular evenly distributed through openings, the inside width of which exceeds the inside width of the through openings or slots formed in the filter tube, so that a correspondingly safe discharge of the fluid through the annular space between the cladding tube and the drill pipe becomes possible.
- a correspondingly larger dimensioning of the passage openings or slots on the circumference of the cladding tube also ensures, even if a smaller number of passage openings or slots are provided, that direct removal of the fluid can be reliably achieved.
- a laying of the passage openings or slots in the cladding tube is not to be feared here, since the filter tube is designed with correspondingly smaller passage openings or slots, so that penetration of larger particles need not be feared.
- the formation can also be made in this way by a corresponding distribution of the passage openings or slots in the cladding tube become that an excessive weakening of the mechanical strength or resistance of the cladding tube is not to be feared.
- the passage openings of the cladding tube are formed along axial generatrices of the cladding tube and in the circumferential direction each run essentially in one plane normal to the longitudinal axis of the cladding tube.
- the cladding tube is free of through openings over a partial area, for example about a third, of its circumference.
- the cladding tube is corrugated on its surface facing the filter tube or is formed with rib-like elevations on which the filter tube can be supported over at least part of its circumference, so that if the Cladding tube at the same time a secure support of the filter tube on the outer circumference of the cladding tube can be achieved.
- a sealing element is provided at the end facing away from the drill bit at a distance from the filter tube on the outer circumference of the cladding tube and that at least one outlet opening is adjacent to the sealing element at the end remote from the filter tube in the cladding tube for dispensing a backfill, in particular a hardening suspension.
- Such a sealing element which enables the borehole to be sealed off from surrounding rock, in particular after the filling compound, in particular a hardening suspension, such as concrete or the like, has been applied, not only precisely defines the distance or length of the borehole intended for drainage, but it is also prevented by such a sealing that any fluid, which may be in the area of the drill bit, spreads in the borehole along the outside of the cladding tube and thus leads, for example, to a flushing out or an undesired enlargement of the dimensions of the borehole, as occurs, for example, when Water would have to be feared in the case of an anchor to be placed in a roof, in which the mouth of the borehole is inclined downward and thus fluid present in the rock could flow outside the cladding tube.
- the design is preferably such that the sealing element is formed by a lip-like or tongue-like plastic element which surrounds the cladding tube and can be expanded when the filling compound is applied, in which connection it is further preferably proposed that the sealing element is designed with a hardness of 80 to 100 Shore, in particular approximately 90 Shore. In this way, if a corresponding mechanical strength or resistance of the sealing element is maintained, there is also a corresponding elasticity, as a result of which a proper expansion and thereby achieve the sealing element against the wall of the borehole produced.
- the sealing element is provided in the area adjacent to the filter tube, as a result of which the sealing element and the subsequent introduction of a filling compound succeed in providing the filter tube with a corresponding sealing effect and anchoring of the cladding tube forming a lining achieve. If the position of the soil or rock layer to be drained is not exactly known, a correspondingly larger distance can be provided between the end of the filter tube and the sealing element.
- annular sleeve element surrounding the cladding tube and preferably displaceable along the cladding tube interacts with the sealing element, as is another preferred embodiment of the device according to the invention corresponds.
- a packer in particular a packer inflatable by compressed air, surrounds the cladding tube immediately upstream of the sealing element.
- the casing tube on the drill bit A suction pump or a vacuum source can be connected at the opposite end, whereby after the filling material has been introduced and the sealing element is in contact, it is possible to achieve targeted drainage of the borehole and the surrounding rock material by means of a corresponding suction pump or vacuum source.
- the cladding tube be subjected to tensile stress with the Drill bit, optionally with the interposition of a coupling element, in particular a striking shoe acting on the drill bit, is coupled, as this corresponds to a further preferred embodiment of the device according to the invention.
- the cladding tube made of steel and the filter tube, on which no loads act is made of plastic, with such a combination of materials for the cladding tube and the filter tube being able to achieve sufficient stability and durability and at the same time with the filter tube made of plastic, the additional mass as well as the required additional enlargement of the outer circumference in the area immediately adjacent to the drill bit is limited to a minimum.
- Figure 1 is a schematic representation of an inventive device for drilling and draining holes in soil or rock material, partially in section.
- Fig. 2 on an enlarged scale, partly in section, the section II of Fig. 1;
- FIG. 3 again on an enlarged scale, partly in section, section III of FIG. 1;
- FIG. 4 shows a modified embodiment of a device according to the invention in a representation similar to FIG. 1; and FIG. 5 shows, on an enlarged scale, a section along the line V-V of FIG. 4.
- Fig. 1 generally 1 with a device for drilling, in particular impact or rotary impact drilling, and drainage of holes in soil or rock material is shown, with a drill bit divided, for example, in the radial direction into a central drill bit 2 and a ring drill bit 3 via a schematically 4 indicated drill pipe is driven in a known manner to impact or rotary impact drilling.
- the drill bit also interacts with a striking shoe 5, the drill pipe 4 being surrounded by a cladding tube 6 composed of several individual parts, as will become clearer from FIGS. 2 and 3.
- a filter tube 7 which surrounds the cladding tube 6 and, in the illustration shown, is composed of a plurality of individual elements and which has a multiplicity of passage openings or, in particular, evenly distributed on the circumference.
- Has passage slots 8 As can be seen in particular from the enlarged representation according to FIG.
- fluid to be discharged passes through the through slots 8 in the filter tube 7 into an annular space or free space 9 formed between the outer circumference of the cladding tube 6 and the inner circumference of the filter tube 7, whereupon further Subsequent fluid or water to be drained via passage openings 10, which are provided on the cladding tube 6 at least in the region of the section surrounded by the filter tube 7, into the interior of an annular space 11 defined between the outer diameter of the drill pipe, again designated by 4, and the inner diameter of the cladding tube 6 reached.
- a corresponding filtering effect is thus achieved through the filter tube 7 through the passage slots 8, which have a width of about 0.5 mm to about 1 mm, for example, which is subsequently followed by the larger dimensions or clear passage openings 10 in the cladding tube 6 a safe removal of fluid to be drained takes place via the annular space 11 between the drill pipe 4 and the cladding tube 6.
- the central axis of the device 1 is also indicated at 12.
- a guide sleeve 14 is also provided, which also serves, among other things, to maintain a corresponding annular or free space 9 between the filter tube 7 and the cladding tube 6, the additional guide sleeve not being shown in FIG. 2 .
- a sealing element 15 is provided, which surrounds the cladding tube 6 or a cladding tube section, with a sealing element 15, which likewise surrounds the cladding tube 6, also cooperating, as is shown in more detail in FIG. 3 .
- the sealing element 15 is an at least partially lip or tongue-shaped plastic element surrounding the cladding tube 6, for example by moving the sleeve element 16 in the sense of the double arrow 17 the extent of the expansion of one leg or one Tongue 18 forming part of the sealing element 15 can be chosen accordingly.
- the free end of the tongue or lip 18 does not rest against the borehole walls, which are indicated schematically by 19, so that, if necessary, cuttings or degraded material can be guided past the sealing element 15. If a sealing effect is to be achieved, the tongue or lip 18 can be widened on the one hand by moving the sleeve 16 in the direction of the sealing element 15.
- a widening and final contact of the free end of the lip or tongue 18 is supported by the fact that, according to the arrow 20, a hardening suspension or generally a filler compound in the space between the cladding tube 6 and the cladding tube 6, via at least one outlet opening 21 Borehole wall 19 is introduced, with the filling compound under the free end of the lip or tongue 18 providing a sealing closure in the area adjacent to the sealing element 15.
- a vacuum source or suction pump which is indicated schematically in FIG. 1 by 22, can subsequently be applied to the annular space 11 defined between the cladding tube 6 and the drill pipe 4, so that a Suction or drainage of fluid that reaches or is sucked into the interior of the free space 11 via the filter tube 7 and the passage openings 10.
- the positioning of the sealing element 15 can be selected in accordance with the circumstances in such a way that, for example, a sealing is then carried out on the desired filter section 7.
- the cladding tube 6 can be made of steel, while the filter tube or the filter tube sections 7 can be made of a plastic.
- a filter tube 7 surrounding a cladding tube 23 is again provided with a plurality of passage slots 8, the cladding tube 23 being provided with a corrugated or ribbed surface, which increases the rigidity and resistance of the cladding tube, while at the same time supporting the filter tube 7 on the respective elevations 24 can be achieved.
- Passage openings 10 are in each case provided in the depressions, through which the fluid introduced via the filter tube 7 can be brought out into the interior of the cladding tube 23 and subsequently out of the cladding tube 23.
- the cladding tube 23 is also free of through-openings over a sub-area extending the lower third 25, so that in the case of obliquely running bores, a secure entry of fluid through the through-openings 10 into the interior of the cladding tube 23 in the upper region is made possible, while an undesired exit occurs the lower region 25, which in turn would cause penetration into surrounding rock, is avoided.
- By arranging the passage opening 10 along axial generatrix, with circumferential areas remaining free of passage openings also maintain a correspondingly resistant structure of the cladding tube 23.
- the cladding tube 6 of FIGS. 1 to 3 can also be formed with an essentially smooth outer contour with only through openings 10 arranged longitudinally along axial generatrices and, for example, free of openings 10 in a lower region.
- an optionally usable packer 26 which is connected upstream of the sealing element 15, is also indicated in FIG. 4.
- a packer 26 which can be expanded, for example, by compressed air, can enable an additional, at least provisional seal, in particular in those cases in which, with a hole that cannot be guided exactly and possibly enlarged hole diameters, the sealing element 15 cannot be used alone.
- An achievable expanded position of the packer is indicated in Fig. 4 with 26 '.
- the drainage and filtering effect can be maintained by providing the filter tube 7 surrounding the cladding tube 6 or 23, even after removing the drill pipe 4 with parts of the drill bit 2 from the borehole 19.
Abstract
Description
Claims
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AT142998 | 1998-08-21 | ||
AT142998 | 1998-08-21 | ||
PCT/AT1999/000207 WO2000011302A1 (de) | 1998-08-21 | 1999-08-20 | Vorrichtung zum bohren und drainagieren von löchern in boden- oder gesteinsmaterial |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1105618A1 true EP1105618A1 (de) | 2001-06-13 |
EP1105618B1 EP1105618B1 (de) | 2004-01-02 |
Family
ID=3513722
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP99939259A Expired - Lifetime EP1105618B1 (de) | 1998-08-21 | 1999-08-20 | Vorrichtung zum bohren und drainagieren von löchern in boden- oder gesteinsmaterial |
Country Status (16)
Country | Link |
---|---|
US (1) | US6431292B2 (de) |
EP (1) | EP1105618B1 (de) |
JP (1) | JP2002525456A (de) |
KR (1) | KR100609938B1 (de) |
CN (1) | CN1276166C (de) |
AT (2) | ATE257213T1 (de) |
AU (1) | AU5364299A (de) |
CA (1) | CA2341295C (de) |
CZ (1) | CZ298861B6 (de) |
DE (1) | DE59908206D1 (de) |
HK (1) | HK1040542B (de) |
HR (1) | HRP20010122B1 (de) |
PL (1) | PL190390B1 (de) |
TR (1) | TR200100497T2 (de) |
WO (1) | WO2000011302A1 (de) |
ZA (1) | ZA200101362B (de) |
Families Citing this family (26)
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US20040011534A1 (en) * | 2002-07-16 | 2004-01-22 | Simonds Floyd Randolph | Apparatus and method for completing an interval of a wellbore while drilling |
SI1381756T2 (sl) * | 2001-04-26 | 2010-07-30 | Alwag Tunnelausbau Gmbh | Postopek in priprava za vrtanje luknje in za zavarovanje sidranja v vrtini |
AT411383B (de) * | 2001-11-30 | 2003-12-29 | Techmo Entw & Vertriebs Gmbh | Verfahren und vorrichtung zum bohren von löchern |
US6715570B1 (en) * | 2002-09-17 | 2004-04-06 | Schumberger Technology Corporation | Two stage downhole drilling fluid filter |
US6799645B2 (en) * | 2002-12-10 | 2004-10-05 | Shell Oil Company | Method and apparatus for drilling and completing a well with an expandable sand control system |
US7478687B2 (en) * | 2004-07-19 | 2009-01-20 | Baker Hughes Incorporated | Coiled tubing conveyed milling |
AT501875B1 (de) * | 2005-06-07 | 2008-05-15 | Alwag Tunnelausbau Gmbh | Verfahren und vorrichtung zum bohren, insbesondere schlag- oder drehschlagbohren eines lochs in boden- oder gesteinsmaterial |
US7703533B2 (en) | 2006-05-30 | 2010-04-27 | Baker Hughes Incorporated | Shear type circulation valve and swivel with open port reciprocating feature |
AT504561B1 (de) * | 2006-11-29 | 2009-05-15 | Techmo Entw & Vertriebs Gmbh | Vorrichtung zum bohren in gesteinsmaterial |
AT504560B1 (de) | 2006-11-29 | 2009-06-15 | Techmo Entw & Vertriebs Gmbh | Vorrichtung zum schlag- bzw. drehschlagbohren in gesteinsmaterial |
US7934559B2 (en) * | 2007-02-12 | 2011-05-03 | Baker Hughes Incorporated | Single cycle dart operated circulation sub |
AT505190B1 (de) | 2007-04-19 | 2009-03-15 | Techmo Entw & Vertriebs Gmbh | Vorrichtung zum bohren bzw. drehschlagbohren in gesteinsmaterial |
AT505189B1 (de) * | 2007-04-19 | 2009-01-15 | Techmo Entw & Vertriebs Gmbh | Vorrichtung zum herstellen eines bohrlochs in gesteinsmaterial |
US7708076B2 (en) * | 2007-08-28 | 2010-05-04 | Baker Hughes Incorporated | Method of using a drill in sand control liner |
US8869916B2 (en) | 2010-09-09 | 2014-10-28 | National Oilwell Varco, L.P. | Rotary steerable push-the-bit drilling apparatus with self-cleaning fluid filter |
BR112013005716B1 (pt) | 2010-09-09 | 2020-07-07 | National Oilwell Varco, L.P. | Aparelho de perfuração rotativa direcionável |
US8936661B2 (en) * | 2011-02-23 | 2015-01-20 | Pecofacet (Us), Inc. | Multi-stage filter element |
US9714496B2 (en) * | 2014-02-14 | 2017-07-25 | Groupe Mammut Inc. | Apparatus and method for controlling liquid on a site |
CN103925202B (zh) * | 2014-04-11 | 2015-10-07 | 中煤科工集团西安研究院有限公司 | 煤矿用积水抽排孔底泵 |
JP6788491B2 (ja) * | 2016-12-14 | 2020-11-25 | 日鉄建材株式会社 | 多段式パイプの支圧治具及び多段式パイプの貫入方法 |
CN106869112A (zh) * | 2017-03-24 | 2017-06-20 | 安徽省建筑科学研究设计院 | 一种加强型ptc有孔管桩 |
CN107246008B (zh) * | 2017-06-30 | 2019-10-01 | 浙江大学 | 一种边坡防护的自排水锚索系统的施工方法 |
CN112113028B (zh) * | 2020-09-15 | 2022-03-11 | 北京建工土木工程有限公司 | 一种将已拖拉完管道无损伤拉出地面的设备及其方法 |
CN112855029B (zh) * | 2021-04-26 | 2021-07-20 | 中铁九局集团第七工程有限公司 | 一种采空区钻孔外扩管施工方法 |
CN113294087B (zh) * | 2021-05-25 | 2022-09-20 | 中国电建市政建设集团有限公司 | 一种砂砾石地质层钢管井降水施工系统及其施工方法 |
CN113463657B (zh) * | 2021-07-15 | 2022-09-02 | 北京地矿工程建设有限责任公司 | 一种水下锚索施工工艺 |
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US400466A (en) * | 1889-04-02 | Well-boring apparatus | ||
US673398A (en) * | 1901-01-05 | 1901-05-07 | Anthony Keller | Filter or strainer for well-tubes. |
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US2325556A (en) * | 1941-03-22 | 1943-07-27 | Guiberson Corp | Well swab |
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US4869323A (en) * | 1988-02-12 | 1989-09-26 | Standard Alaska Production Company | Cementing and rotating an upper well casing attached by swivel to a lower casing |
US5078211A (en) * | 1989-12-19 | 1992-01-07 | Swineford Richard A | Plastic packer |
US5234055A (en) * | 1991-10-10 | 1993-08-10 | Atlantic Richfield Company | Wellbore pressure differential control for gravel pack screen |
US5219028A (en) * | 1992-02-25 | 1993-06-15 | Conoco Inc. | Well casing and well casing method |
US5664628A (en) * | 1993-05-25 | 1997-09-09 | Pall Corporation | Filter for subterranean wells |
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-
1999
- 1999-08-20 TR TR2001/00497T patent/TR200100497T2/xx unknown
- 1999-08-20 CA CA002341295A patent/CA2341295C/en not_active Expired - Fee Related
- 1999-08-20 WO PCT/AT1999/000207 patent/WO2000011302A1/de active IP Right Grant
- 1999-08-20 KR KR1020017002233A patent/KR100609938B1/ko not_active IP Right Cessation
- 1999-08-20 CN CNB998099252A patent/CN1276166C/zh not_active Expired - Fee Related
- 1999-08-20 JP JP2000566537A patent/JP2002525456A/ja not_active Withdrawn
- 1999-08-20 AT AT99939259T patent/ATE257213T1/de active
- 1999-08-20 AU AU53642/99A patent/AU5364299A/en not_active Abandoned
- 1999-08-20 PL PL99346164A patent/PL190390B1/pl not_active IP Right Cessation
- 1999-08-20 CZ CZ20010624A patent/CZ298861B6/cs not_active IP Right Cessation
- 1999-08-20 DE DE59908206T patent/DE59908206D1/de not_active Expired - Lifetime
- 1999-08-20 EP EP99939259A patent/EP1105618B1/de not_active Expired - Lifetime
- 1999-10-07 AT AT0807999U patent/AT3886U1/de not_active IP Right Cessation
-
2001
- 2001-02-15 US US09/783,099 patent/US6431292B2/en not_active Expired - Fee Related
- 2001-02-19 ZA ZA200101362A patent/ZA200101362B/xx unknown
- 2001-02-20 HR HR20010122A patent/HRP20010122B1/xx not_active IP Right Cessation
-
2002
- 2002-03-18 HK HK02102048.6A patent/HK1040542B/zh not_active IP Right Cessation
Non-Patent Citations (1)
Title |
---|
See references of WO0011302A1 * |
Also Published As
Publication number | Publication date |
---|---|
EP1105618B1 (de) | 2004-01-02 |
CA2341295A1 (en) | 2000-03-02 |
ATE257213T1 (de) | 2004-01-15 |
KR100609938B1 (ko) | 2006-08-04 |
KR20010072842A (ko) | 2001-07-31 |
CN1313926A (zh) | 2001-09-19 |
CZ298861B6 (cs) | 2008-02-27 |
CA2341295C (en) | 2007-07-10 |
JP2002525456A (ja) | 2002-08-13 |
HK1040542B (zh) | 2007-05-04 |
TR200100497T2 (tr) | 2001-10-22 |
US20010004025A1 (en) | 2001-06-21 |
HK1040542A1 (en) | 2002-06-14 |
US6431292B2 (en) | 2002-08-13 |
DE59908206D1 (de) | 2004-02-05 |
HRP20010122A2 (en) | 2002-02-28 |
AT3886U1 (de) | 2000-09-25 |
HRP20010122B1 (en) | 2004-10-31 |
WO2000011302A1 (de) | 2000-03-02 |
PL346164A1 (en) | 2002-01-28 |
PL190390B1 (pl) | 2005-12-30 |
AU5364299A (en) | 2000-03-14 |
CN1276166C (zh) | 2006-09-20 |
CZ2001624A3 (cs) | 2002-02-13 |
ZA200101362B (en) | 2001-12-24 |
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