WO1999060212A1 - Water flow control system - Google Patents

Water flow control system Download PDF

Info

Publication number
WO1999060212A1
WO1999060212A1 PCT/GB1999/001552 GB9901552W WO9960212A1 WO 1999060212 A1 WO1999060212 A1 WO 1999060212A1 GB 9901552 W GB9901552 W GB 9901552W WO 9960212 A1 WO9960212 A1 WO 9960212A1
Authority
WO
WIPO (PCT)
Prior art keywords
slope
paving system
flow
water
barriers
Prior art date
Application number
PCT/GB1999/001552
Other languages
French (fr)
Inventor
Christopher John Pratt
Original Assignee
Coventry University
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Coventry University filed Critical Coventry University
Priority to AU39430/99A priority Critical patent/AU3943099A/en
Priority to EP99922327A priority patent/EP1080273A1/en
Priority to CA002332602A priority patent/CA2332602A1/en
Priority to JP2000549808A priority patent/JP2003517522A/en
Publication of WO1999060212A1 publication Critical patent/WO1999060212A1/en

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
    • E01C11/00—Details of pavings
    • E01C11/22—Gutters; Kerbs ; Surface drainage of streets, roads or like traffic areas
    • E01C11/224—Surface drainage of streets
    • E01C11/225—Paving specially adapted for through-the-surfacing drainage, e.g. perforated, porous; Preformed paving elements comprising, or adapted to form, passageways for carrying off drainage
    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
    • E01C3/00—Foundations for pavings
    • E01C3/06—Methods or arrangements for protecting foundations from destructive influences of moisture, frost or vibration
    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
    • E01C9/00—Special pavings; Pavings for special parts of roads or airfields
    • E—FIXED CONSTRUCTIONS
    • E03—WATER SUPPLY; SEWERAGE
    • E03F—SEWERS; CESSPOOLS
    • E03F1/00—Methods, systems, or installations for draining-off sewage or storm water
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D17/00—Excavations; Bordering of excavations; Making embankments
    • E02D17/20—Securing of slopes or inclines
    • 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
    • Y02A30/00—Adapting or protecting infrastructure or their operation
    • Y02A30/60—Planning or developing urban green infrastructure

Definitions

  • the present invention relates to a system for controlling drainage and/or flow of water on a slope.
  • European Patent No 0 786 034 It is known from European Patent No 0 786 034 to provide a paving system for spillage or floodwater management comprising a permeable layer providing an upper surface; at least one supporting substrate layer thereunder which is permeable to liquid and a containment membrane of impermeable material containing said substrate layer for controlled retention of liquid therein.
  • the paving system is provided with valves and discharge ducts for drainage.
  • the paving system according to European Patent No 0 786 034 is particularly suitable for use in areas where there is a risk of spillage of fluids which must be prevented from entering the environment before treatment. It is a disadvantage of the paving system according to European Patent No 0 786 034 that it is not suitable for use in areas where there is a slope.
  • the present invention provides a paving system for controlling drainage and/or flow of water on a slope, the system comprising: a permeable layer providing an upper surface; at least one supporting substrate layer thereunder which is permeable to liquid; a containment layer containing said substrate layer for restricting release of water from said supporting substrate layer into surrounding ground; and weir means for controlling the flow of water down the slope.
  • the containment layer comprises a water impermeable membrane or material layer beneath the supporting substrate layer which prevents the flow of liquid vertically from the substrate layer into the ground beneath the containment layer.
  • the weir means comprises one or more trenches extending laterally across said slope.
  • the trenches are preferably approximately 0.5m wide and 0.5m deep, and are preferably spaced at 10m intervals measured in the direction of the slope. The lowermost trench is preferably deeper than the previous trenches.
  • the weir means may comprise barriers which extend laterally across the slope.
  • the barriers preferably comprise folds formed in the containment layer and are preferably provided with openings to allow restricted flow of liquid down the slope.
  • the openings are preferably staggered along consecutive barriers to provide a meandering path for said liquid thereby to restrict the flow of liquid down the slope.
  • Figure 1 is a sectional side elevation, of a first embodiment of a system according to the present invention.
  • Figure 2 is a view similar to that of Figure 1 of a second preferred embodiment of a system according to the present invention.
  • Figure 3 is a plan view of the system of Figure 2.
  • FIG. 1 this shows a system for controlling or regulating the flow of water down a slope.
  • the system has a surface layer 12 which is a permeable layer to allow liquid such as rain water to run through into a channel 14 formed by a containment layer 16 and the arrangement of layers is described in detail in European Patent No 0 786 034
  • a number of trenches 50 are provided which extend generally along contour lines of the slope.
  • Each trench is typically 0.5 m deep by 0.5 m wide and the trenches are typically spaced at 10 m intervals.
  • a trench having these dimensions will hold the equivalent of 7.5 mm rainfall from a 10m pavement, assuming 30% void in the subbase stone.
  • the lower most trench is conveniently 1.0 m deep to avoid the risk of surface flooding if the soil infiltration rate is greater than 10 "5 m/s.
  • Figure 2 is a view similar to that of Figure 1 of a similar system in which the containment layer is formed by a water impervious membrane.
  • Barriers 60 are provided at intervals down the slope, the barriers extending along contour lines of the slope.
  • the barriers are conveniently at regular intervals and typically at 9 m or 10 m intervals.
  • the barriers 60 are in the form of upstands and are conveniently formed by folds in the membrane 16, stapled along the top edge and held up by steel pins.
  • Figure 3 is a plan view and shows that the barriers 60 are provided with gaps or openings 62 to allow the flow of water down the slope. However, the gaps or openings 62 are staggered to provide a tortuous path for the water and assist its dispersion.
  • the openings may conveniently be formed by pipes, with sealed flanged pipe connections between the panels.
  • the barriers may be of more substantial construction, for example in the form of small walls covered by the membrane.

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Structural Engineering (AREA)
  • Civil Engineering (AREA)
  • Public Health (AREA)
  • Health & Medical Sciences (AREA)
  • Hydrology & Water Resources (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Water Supply & Treatment (AREA)
  • Road Paving Structures (AREA)
  • Sewage (AREA)
  • Cultivation Receptacles Or Flower-Pots, Or Pots For Seedlings (AREA)
  • Preventing Corrosion Or Incrustation Of Metals (AREA)
  • Cultivation Of Plants (AREA)
  • Revetment (AREA)
  • Excavating Of Shafts Or Tunnels (AREA)
  • Paper (AREA)
  • Flow Control (AREA)
  • Massaging Devices (AREA)

Abstract

A paving system for controlling drainage and/or flow of water on a slope comprises a permeable layer providing an upper surface (12), at least one supporting substrate layer thereunder which is permeable to liquid, a containment layer (16) containing said substrate layer (20) for restricting release of water from said supporting substrate layer into surrounding ground; and weir means (50, 60) for controlling the flow of water down the slope.

Description

Water flow control system
The present invention relates to a system for controlling drainage and/or flow of water on a slope.
It is known from European Patent No 0 786 034 to provide a paving system for spillage or floodwater management comprising a permeable layer providing an upper surface; at least one supporting substrate layer thereunder which is permeable to liquid and a containment membrane of impermeable material containing said substrate layer for controlled retention of liquid therein. In a preferred embodiment of the paving system described in that specification, the paving system is provided with valves and discharge ducts for drainage. The paving system according to European Patent No 0 786 034 is particularly suitable for use in areas where there is a risk of spillage of fluids which must be prevented from entering the environment before treatment. It is a disadvantage of the paving system according to European Patent No 0 786 034 that it is not suitable for use in areas where there is a slope.
It is an object of the present invention to provide a paving system in which the above disadvantages are reduced or substantially obviated.
Accordingly, the present invention provides a paving system for controlling drainage and/or flow of water on a slope, the system comprising: a permeable layer providing an upper surface; at least one supporting substrate layer thereunder which is permeable to liquid; a containment layer containing said substrate layer for restricting release of water from said supporting substrate layer into surrounding ground; and weir means for controlling the flow of water down the slope.
In a preferred form of the invention the containment layer comprises a water impermeable membrane or material layer beneath the supporting substrate layer which prevents the flow of liquid vertically from the substrate layer into the ground beneath the containment layer. In a further preferred form of the invention, the weir means comprises one or more trenches extending laterally across said slope. The trenches are preferably approximately 0.5m wide and 0.5m deep, and are preferably spaced at 10m intervals measured in the direction of the slope. The lowermost trench is preferably deeper than the previous trenches.
In an alternative preferred form of the invention, the weir means may comprise barriers which extend laterally across the slope. The barriers preferably comprise folds formed in the containment layer and are preferably provided with openings to allow restricted flow of liquid down the slope. The openings are preferably staggered along consecutive barriers to provide a meandering path for said liquid thereby to restrict the flow of liquid down the slope.
The present invention is further described hereinafter by way of example, with reference to accompanying drawings, in which:
Figure 1 is a sectional side elevation, of a first embodiment of a system according to the present invention and
Figure 2 is a view similar to that of Figure 1 of a second preferred embodiment of a system according to the present invention and
Figure 3 is a plan view of the system of Figure 2.
Referring first to Figure 1 , this shows a system for controlling or regulating the flow of water down a slope. The system has a surface layer 12 which is a permeable layer to allow liquid such as rain water to run through into a channel 14 formed by a containment layer 16 and the arrangement of layers is described in detail in European Patent No 0 786 034
In the system shown in Figure 1, a number of trenches 50 are provided which extend generally along contour lines of the slope. Each trench is typically 0.5 m deep by 0.5 m wide and the trenches are typically spaced at 10 m intervals. A trench having these dimensions will hold the equivalent of 7.5 mm rainfall from a 10m pavement, assuming 30% void in the subbase stone. The lower most trench is conveniently 1.0 m deep to avoid the risk of surface flooding if the soil infiltration rate is greater than 10 "5m/s.
Figure 2 is a view similar to that of Figure 1 of a similar system in which the containment layer is formed by a water impervious membrane. Barriers 60 are provided at intervals down the slope, the barriers extending along contour lines of the slope. The barriers are conveniently at regular intervals and typically at 9 m or 10 m intervals. The barriers 60 are in the form of upstands and are conveniently formed by folds in the membrane 16, stapled along the top edge and held up by steel pins.
Figure 3 is a plan view and shows that the barriers 60 are provided with gaps or openings 62 to allow the flow of water down the slope. However, the gaps or openings 62 are staggered to provide a tortuous path for the water and assist its dispersion.
The openings may conveniently be formed by pipes, with sealed flanged pipe connections between the panels.
Alternatively, the barriers may be of more substantial construction, for example in the form of small walls covered by the membrane.

Claims

Claims
1. A paving system for controlling drainage and/or flow of water on a slope, the system comprising:
a permeable layer providing an upper surface;
at least one supporting substrate layer thereunder which is permeable to liquid;
a containment layer containing said substrate layer for restricting release of water from said supporting substrate layer into surrounding ground; and
weir means for controlling the flow of water down the slope.
2. Paving system according to claim 1 wherein said containment layer comprises an impermeable membrane.
3. Paving system according to claim 1 or 2 wherein said weir means comprises one or more trenches extending laterally across said slope.
4. Paving system according to claim 3 wherein said trenches are approximately 0.5m wide and 0.5m deep.
5. Paving system according to claim 3 or 4 wherein said trenches are spaced at 10m intervals measured in the direction of the slope.
6. Paving system according to any of claims 3 to 5 wherein the lowermost trench is deeper than the previous trenches.
7. Paving system according to claim 1 or 2 wherein said weir means comprises barriers extending laterally across said slope.
8. Paving system according to claim 7 wherein said barriers comprise folds formed in said containment layer.
9. Paving system according to claim 7 or 8 wherein said barriers are provided with openings to allow restricted flow of liquid down the slope.
10. Paving system according to claim 9 wherein said openings are staggered along consecutive barriers to provide a meandering path for said liquid thereby to restrict the flow of liquid down the slope.
PCT/GB1999/001552 1998-05-16 1999-05-17 Water flow control system WO1999060212A1 (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
AU39430/99A AU3943099A (en) 1998-05-16 1999-05-17 Water flow control system
EP99922327A EP1080273A1 (en) 1998-05-16 1999-05-17 Water flow control system
CA002332602A CA2332602A1 (en) 1998-05-16 1999-05-17 Water flow control system
JP2000549808A JP2003517522A (en) 1998-05-16 1999-05-17 Water flow control device

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GBGB9810444.1A GB9810444D0 (en) 1998-05-16 1998-05-16 Water flow control system
GB9810444.1 1998-05-16

Publications (1)

Publication Number Publication Date
WO1999060212A1 true WO1999060212A1 (en) 1999-11-25

Family

ID=10832112

Family Applications (2)

Application Number Title Priority Date Filing Date
PCT/GB1999/001555 WO1999059397A1 (en) 1998-05-16 1999-05-17 Water flow control system
PCT/GB1999/001552 WO1999060212A1 (en) 1998-05-16 1999-05-17 Water flow control system

Family Applications Before (1)

Application Number Title Priority Date Filing Date
PCT/GB1999/001555 WO1999059397A1 (en) 1998-05-16 1999-05-17 Water flow control system

Country Status (11)

Country Link
US (1) US6748698B1 (en)
EP (2) EP1079682B1 (en)
JP (2) JP2003517271A (en)
AT (1) ATE245892T1 (en)
AU (2) AU760281B2 (en)
CA (2) CA2332569A1 (en)
DE (1) DE69910010T2 (en)
ES (1) ES2205822T3 (en)
GB (1) GB9810444D0 (en)
NZ (1) NZ508952A (en)
WO (2) WO1999059397A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105672366A (en) * 2016-02-04 2016-06-15 中国科学院武汉植物园 Vegetation type water dispersing structure and construction method thereof

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102004008734B4 (en) * 2004-02-23 2008-05-08 Ilga Kahl Water storage and soil for plants
US20060185238A1 (en) 2005-02-04 2006-08-24 Burge Christine J Drainage systems for plant gardening in flowerpots
MX2018001689A (en) 2015-08-11 2018-05-07 Anthony Iorio Paul Stormwater biofiltration system and method.
US20180228094A1 (en) * 2015-09-11 2018-08-16 Mmt, Inc. Tree Frame and Grate System with a Liner and Method to Improve Growth of Vegetation in an Urban Environment
CN106677011A (en) * 2016-11-17 2017-05-17 辽宁工业大学 Sidewalk and greenbelt water collecting and storing system
CN108589464A (en) * 2018-04-09 2018-09-28 广西大学 A kind of porous pavement biology arresting device
CN108371058B (en) * 2018-04-23 2023-08-22 中国电建集团成都勘测设计研究院有限公司 Grass planting ditch structure with water holding function
CN109056638B (en) * 2018-07-25 2020-08-04 江苏省农业科学院 Component type ecological interception facility for slope orchard non-point source pollution emission reduction and use method
CN108642989A (en) * 2018-07-27 2018-10-12 天津北林新苑环境工程股份有限公司 A kind of bread brick paving structure for preventing gardens arbor root system from tilting
CN115306009A (en) * 2022-07-15 2022-11-08 中铁十局集团第三建设有限公司 Novel drainage green belt construction method based on LID concept

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3916565A (en) * 1973-02-26 1975-11-04 Techway Inc Rooting matrix system
DE2849821A1 (en) * 1978-11-17 1980-05-29 Ingo Mueller Sports pitch watering and drainage substructure - has paralleled damming ridges in troughed surface across slope line
FR2503751A1 (en) * 1981-04-08 1982-10-15 Dany Alain Sports surface construction method - comprises drainage layer of crushed rock sandwiched between foundation and dressing
FR2553799A1 (en) * 1983-10-25 1985-04-26 Sud Parisien Travaux Publics Sports pitch
FR2593841A1 (en) * 1986-02-02 1987-08-07 Screg Ile De France Sports ground
WO1996012067A1 (en) * 1994-10-14 1996-04-25 Coventry University Paving system for spillage and flood management

Family Cites Families (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US968226A (en) * 1909-09-29 1910-08-23 Robert L Ziller Porous pipe and method of manufacturing the same.
US1906494A (en) * 1930-10-09 1933-05-02 American Hair & Felt Company Playing surfaces
US3005287A (en) * 1959-08-14 1961-10-24 Gala Inc Mulch and plant feeder
US4236351A (en) * 1977-05-31 1980-12-02 Smith Elmer L Planter with tubular air hole member
GB2108549B (en) * 1981-11-02 1985-07-17 Bdp Nominees Limited Device for retaining paving blocks around tree pits
JPS62151121A (en) * 1985-09-12 1987-07-06 砂研株式会社 Plant culture method
DE3633390A1 (en) * 1986-10-01 1988-04-14 A Prof Dr Rer Nat Weber Receptacle for plants for cultivating, in particular, dry locations with greenery, and process for cultivating plants by means of the receptacle
DE8710209U1 (en) * 1987-07-25 1987-10-29 Breitsch, Rudolf, 6781 Schindhard Tree disc
DK624987A (en) * 1987-11-27 1989-05-28 Everlite As CULTIVATING CULTIVATION FOR ANNUAL CULTIVATION OF PLANTS
GB2227775B (en) * 1989-02-01 1993-01-27 Frederick Jones & Son Improvements relating to drainage channels
US5099603A (en) * 1991-02-11 1992-03-31 Robert Rigsby Plant growing receptacle
US5064308A (en) * 1991-03-15 1991-11-12 Almond Daniel R Gravity drainage system for athletic fields and method therefor
DE4208740A1 (en) * 1991-03-19 1992-09-24 Arnim Koch Underground support ring for planting trees in paved areas - has pressure distributor grid with radial arms
DE4201758A1 (en) * 1992-01-23 1993-08-05 Heinz Weckler MATERIAL FOR THE SUBSTRUCTION OF ROADS AND THE LIKE
US5363592A (en) * 1992-07-30 1994-11-15 Highland Supply Corporation Method for growing botanical items and providing a decorative cover for same
JP2637055B2 (en) * 1995-01-31 1997-08-06 市郎 山下 Planting structure of trees, etc. and planting method
US5589240A (en) * 1995-03-28 1996-12-31 Atlantic Construction Fabrics, Inc. Multiple cellular confinement assembly for plant propagation
CA2174047A1 (en) * 1996-04-12 1997-10-13 Emil Albert Cornelius Pattyn Tree protector

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3916565A (en) * 1973-02-26 1975-11-04 Techway Inc Rooting matrix system
DE2849821A1 (en) * 1978-11-17 1980-05-29 Ingo Mueller Sports pitch watering and drainage substructure - has paralleled damming ridges in troughed surface across slope line
FR2503751A1 (en) * 1981-04-08 1982-10-15 Dany Alain Sports surface construction method - comprises drainage layer of crushed rock sandwiched between foundation and dressing
FR2553799A1 (en) * 1983-10-25 1985-04-26 Sud Parisien Travaux Publics Sports pitch
FR2593841A1 (en) * 1986-02-02 1987-08-07 Screg Ile De France Sports ground
WO1996012067A1 (en) * 1994-10-14 1996-04-25 Coventry University Paving system for spillage and flood management
EP0786034A1 (en) 1994-10-14 1997-07-30 Coventry University Paving system for spillage and flood management

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105672366A (en) * 2016-02-04 2016-06-15 中国科学院武汉植物园 Vegetation type water dispersing structure and construction method thereof
CN105672366B (en) * 2016-02-04 2017-08-01 中国科学院武汉植物园 Vegetation type aproll structure and its construction method

Also Published As

Publication number Publication date
EP1079682A1 (en) 2001-03-07
AU3943099A (en) 1999-12-06
JP2003517271A (en) 2003-05-27
WO1999059397A1 (en) 1999-11-25
ATE245892T1 (en) 2003-08-15
AU3943399A (en) 1999-12-06
NZ508952A (en) 2003-06-30
EP1080273A1 (en) 2001-03-07
AU760281B2 (en) 2003-05-08
EP1079682B1 (en) 2003-07-30
GB9810444D0 (en) 1998-07-15
JP2003517522A (en) 2003-05-27
US6748698B1 (en) 2004-06-15
CA2332569A1 (en) 1999-11-25
CA2332602A1 (en) 1999-11-25
DE69910010T2 (en) 2004-04-15
ES2205822T3 (en) 2004-05-01
DE69910010D1 (en) 2003-09-04

Similar Documents

Publication Publication Date Title
US6368017B2 (en) Storm water detention filter system
EP1095189B9 (en) Paving block
WO1999060212A1 (en) Water flow control system
US20130047534A1 (en) Apparatus and method for diverting water at basement joints
EP1446536B1 (en) Pollutant containment system
CA2477055A1 (en) Method and apparatus for deflecting liquid from a foundation wall
US5852906A (en) Internal-wall drain system
US6178710B1 (en) Water permeable slab invention
US4589798A (en) Drainage system
JP3452933B2 (en) Pavement structure for spill and flood treatment
EP1518964B2 (en) Surface drainage arrangement
JP2005097858A (en) Draining block, and pavement structure using the same
JP4560666B2 (en) Covering structure of landfill waste, its construction method and water permeability control mat
US3212266A (en) Septic tank drain field and method
JP3424006B2 (en) Field groundwater level control method.
JP2005185927A (en) Permeation water control method of landfill waste
JPH0568578B2 (en)
US20190032321A1 (en) Irrigation curtain and erosion control method for regenerative stormwater conveyance
JP2003003456A (en) Diffusion preventive structure of contaminant in soil
AU2002339143B2 (en) Pollutant containment system
SU881181A1 (en) Protecting coating of hydraulic structure slopes
JP2002159932A (en) Leakage preventive structure of contaminant in soil
AU2002339143A1 (en) Pollutant containment system
UA56410A (en) Draining-accumulation system
JPH0762632A (en) Artificial floodway

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 HR 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 ZA ZW

AL Designated countries for regional patents

Kind code of ref document: A1

Designated state(s): GH GM KE LS MW SD SL 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 GW ML MR NE SN TD TG

121 Ep: the epo has been informed by wipo that ep was designated in this application
DFPE Request for preliminary examination filed prior to expiration of 19th month from priority date (pct application filed before 20040101)
ENP Entry into the national phase

Ref document number: 2332602

Country of ref document: CA

NENP Non-entry into the national phase

Ref country code: KR

WWE Wipo information: entry into national phase

Ref document number: 508327

Country of ref document: NZ

WWE Wipo information: entry into national phase

Ref document number: 1999922327

Country of ref document: EP

WWE Wipo information: entry into national phase

Ref document number: 39430/99

Country of ref document: AU

WWE Wipo information: entry into national phase

Ref document number: 508951

Country of ref document: NZ

WWE Wipo information: entry into national phase

Ref document number: 09700782

Country of ref document: US

WWP Wipo information: published in national office

Ref document number: 1999922327

Country of ref document: EP

REG Reference to national code

Ref country code: DE

Ref legal event code: 8642

WWW Wipo information: withdrawn in national office

Ref document number: 1999922327

Country of ref document: EP