GB1237097A - Irrigation conduit and method for producing such - Google Patents
Irrigation conduit and method for producing suchInfo
- Publication number
- GB1237097A GB1237097A GB29138/68A GB2913868A GB1237097A GB 1237097 A GB1237097 A GB 1237097A GB 29138/68 A GB29138/68 A GB 29138/68A GB 2913868 A GB2913868 A GB 2913868A GB 1237097 A GB1237097 A GB 1237097A
- Authority
- GB
- United Kingdom
- Prior art keywords
- conduit
- score line
- june
- extruded
- impervious
- 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.)
- Expired
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L9/00—Rigid pipes
- F16L9/12—Rigid pipes of plastics with or without reinforcement
- F16L9/133—Rigid pipes of plastics with or without reinforcement the walls consisting of two layers
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
- A01G25/00—Watering gardens, fields, sports grounds or the like
- A01G25/06—Watering arrangements making use of perforated pipe-lines located in the soil
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B26—HAND CUTTING TOOLS; CUTTING; SEVERING
- B26F—PERFORATING; PUNCHING; CUTTING-OUT; STAMPING-OUT; SEVERING BY MEANS OTHER THAN CUTTING
- B26F1/00—Perforating; Punching; Cutting-out; Stamping-out; Apparatus therefor
- B26F1/0015—Perforating; Punching; Cutting-out; Stamping-out; Apparatus therefor specially adapted for perforating tubes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C44/00—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles
- B29C44/34—Auxiliary operations
- B29C44/36—Feeding the material to be shaped
- B29C44/46—Feeding the material to be shaped into an open space or onto moving surfaces, i.e. to make articles of indefinite length
- B29C44/50—Feeding the material to be shaped into an open space or onto moving surfaces, i.e. to make articles of indefinite length using pressure difference, e.g. by extrusion or by spraying
- B29C44/507—Feeding the material to be shaped into an open space or onto moving surfaces, i.e. to make articles of indefinite length using pressure difference, e.g. by extrusion or by spraying extruding the compound through an annular die
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02B—HYDRAULIC ENGINEERING
- E02B11/00—Drainage of soil, e.g. for agricultural purposes
- E02B11/005—Drainage conduits
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2023/00—Tubular articles
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Mechanical Engineering (AREA)
- Water Supply & Treatment (AREA)
- Soil Sciences (AREA)
- Forests & Forestry (AREA)
- Environmental Sciences (AREA)
- Agronomy & Crop Science (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Extrusion Moulding Of Plastics Or The Like (AREA)
- Rigid Pipes And Flexible Pipes (AREA)
Abstract
1,237,097. Extruded irrigation pipe. F. BUTRUILLE. 19 June, 1968 [22 June, 1967], No. 29138/68. Heading B5A. [Also in Divisions C3 and F2] An irrigation, or soaking, conduit 5 has a wall structure of intercommunicative cellular plastics material, e.g. formed ethylene polymers and copolymers, and an outer surface which, at normal operative pressures, is impervious to water, the wall having at least one score line 9 which penetrates the outer surface and destroys its water impervious nature. As shown, the conduit has four longitudinal score lines 9. Alternatively, a single helical score line, or a number of axially-spaced, ring-shaped, score lines, may be provided. The conduit is formed by extruding a hot hollow conduit from a foamable thermoplastic resin, e.g. polyethylene, with an alkali metal bicarbonate gas-releasing agent and a small amount of naphthylenic-type pail oil, the extruding taking place at about 300- 360 F. Air is then forced through the extruded conduit to expand it as it passes through the extrusion die and into a cooled sizer which cools, sizes, and hardens the conduit to form a water impervious external wall surface. The air injection also aids in connecting the cells of the foamed plastics. Each score line is then made in the external wall surface.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US64807867A | 1967-06-22 | 1967-06-22 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1237097A true GB1237097A (en) | 1971-06-30 |
Family
ID=24599349
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB29138/68A Expired GB1237097A (en) | 1967-06-22 | 1968-06-19 | Irrigation conduit and method for producing such |
Country Status (7)
Country | Link |
---|---|
BE (1) | BE716366A (en) |
DE (1) | DE1759909C3 (en) |
ES (1) | ES355348A1 (en) |
FR (1) | FR1579642A (en) |
GB (1) | GB1237097A (en) |
IL (1) | IL30187A (en) |
NL (1) | NL6808804A (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4577998A (en) * | 1981-10-22 | 1986-03-25 | Imperial Chemical Industries, Plc | Production of PVC irrigation pipe and the pipe so produced |
GB2245860A (en) * | 1990-06-05 | 1992-01-15 | Atomic Energy Authority Uk | Plastics extrusion |
WO2004055426A3 (en) * | 2002-12-17 | 2004-08-19 | Wellstream Int Ltd | Collapse tolerant flexible pipe and method of manufacturing same |
EP3281758A1 (en) * | 2016-08-08 | 2018-02-14 | DiTullio, Robert J. | Stormwater chamber with stackable reinforcing ribs |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2650718A1 (en) * | 1976-11-05 | 1978-05-11 | Bayer Ag | PROCESS FOR MANUFACTURING MICROPOROUS HOLLOW PROFILES, IN PARTICULAR PIPES, FOR INPUT AND REMOVAL OF FLOWING SUBSTANCES SUCH AS GASES OR LIQUIDS |
DE7820028U1 (en) * | 1978-07-04 | 1978-10-12 | Hoechst Ag, 6000 Frankfurt | FILTER TUBE |
DE4024405A1 (en) * | 1990-08-01 | 1992-02-06 | Meulen Alfred V D | Irrigation and drainage system - comprises permeable plastics foam tube either in ring form or with vessel attached to one end |
DE10060853C1 (en) * | 2000-12-06 | 2002-08-14 | Framatome Anp Gmbh | Sensor tube for determining a concentration profile |
ITFO20120005A1 (en) * | 2012-04-17 | 2013-10-18 | Valerio Vernocchi | DEVICE FOR IRRIGATION |
-
1968
- 1968-06-11 BE BE716366D patent/BE716366A/xx not_active IP Right Cessation
- 1968-06-17 IL IL30187A patent/IL30187A/en unknown
- 1968-06-19 GB GB29138/68A patent/GB1237097A/en not_active Expired
- 1968-06-20 DE DE1759909A patent/DE1759909C3/en not_active Expired
- 1968-06-21 FR FR1579642D patent/FR1579642A/fr not_active Expired
- 1968-06-21 NL NL6808804A patent/NL6808804A/xx unknown
- 1968-06-22 ES ES355348A patent/ES355348A1/en not_active Expired
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4577998A (en) * | 1981-10-22 | 1986-03-25 | Imperial Chemical Industries, Plc | Production of PVC irrigation pipe and the pipe so produced |
GB2245860A (en) * | 1990-06-05 | 1992-01-15 | Atomic Energy Authority Uk | Plastics extrusion |
WO2004055426A3 (en) * | 2002-12-17 | 2004-08-19 | Wellstream Int Ltd | Collapse tolerant flexible pipe and method of manufacturing same |
US6926037B2 (en) | 2002-12-17 | 2005-08-09 | Wellstream International Limited | Collapse tolerant flexible pipe and method of manufacturing same |
US7640950B2 (en) | 2002-12-17 | 2010-01-05 | Wellstream International Limited | Collapse tolerant flexible pipe and method of manufacturing same |
EP3281758A1 (en) * | 2016-08-08 | 2018-02-14 | DiTullio, Robert J. | Stormwater chamber with stackable reinforcing ribs |
Also Published As
Publication number | Publication date |
---|---|
DE1759909C3 (en) | 1975-06-19 |
DE1759909A1 (en) | 1971-07-15 |
IL30187A (en) | 1971-11-29 |
ES355348A1 (en) | 1969-12-16 |
DE1759909B2 (en) | 1974-10-10 |
BE716366A (en) | 1968-11-04 |
IL30187A0 (en) | 1968-08-22 |
FR1579642A (en) | 1969-08-29 |
NL6808804A (en) | 1968-12-23 |
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