ES355348A1 - Irrigation conduit and method for producing such - Google Patents

Irrigation conduit and method for producing such

Info

Publication number
ES355348A1
ES355348A1 ES355348A ES355348A ES355348A1 ES 355348 A1 ES355348 A1 ES 355348A1 ES 355348 A ES355348 A ES 355348A ES 355348 A ES355348 A ES 355348A ES 355348 A1 ES355348 A1 ES 355348A1
Authority
ES
Spain
Prior art keywords
conduit
score line
impervious
water
extruding
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
Application number
ES355348A
Other languages
Spanish (es)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
BUTRUILLE
Original Assignee
BUTRUILLE
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 BUTRUILLE filed Critical BUTRUILLE
Publication of ES355348A1 publication Critical patent/ES355348A1/en
Expired legal-status Critical Current

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

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.
ES355348A 1967-06-22 1968-06-22 Irrigation conduit and method for producing such Expired ES355348A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US64807867A 1967-06-22 1967-06-22

Publications (1)

Publication Number Publication Date
ES355348A1 true ES355348A1 (en) 1969-12-16

Family

ID=24599349

Family Applications (1)

Application Number Title Priority Date Filing Date
ES355348A Expired ES355348A1 (en) 1967-06-22 1968-06-22 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)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
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
DE3272913D1 (en) * 1981-10-22 1986-10-02 Ici Plc Production of pvc irrigation pipe
GB2245860A (en) * 1990-06-05 1992-01-15 Atomic Energy Authority Uk Plastics extrusion
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
US6926037B2 (en) 2002-12-17 2005-08-09 Wellstream International Limited Collapse tolerant flexible pipe and method of manufacturing same
ITFO20120005A1 (en) * 2012-04-17 2013-10-18 Valerio Vernocchi DEVICE FOR IRRIGATION
US9765509B1 (en) * 2016-08-08 2017-09-19 Robert J. DiTullio Stormwater chamber with stackable reinforcing ribs

Also Published As

Publication number Publication date
FR1579642A (en) 1969-08-29
DE1759909B2 (en) 1974-10-10
NL6808804A (en) 1968-12-23
IL30187A (en) 1971-11-29
DE1759909C3 (en) 1975-06-19
GB1237097A (en) 1971-06-30
DE1759909A1 (en) 1971-07-15
IL30187A0 (en) 1968-08-22
BE716366A (en) 1968-11-04

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