FR2637840B1 - Grillages en matiere plastique a usage notamment de nappes de drainage et dispositifs pour leur realisation - Google Patents

Grillages en matiere plastique a usage notamment de nappes de drainage et dispositifs pour leur realisation

Info

Publication number
FR2637840B1
FR2637840B1 FR8813711A FR8813711A FR2637840B1 FR 2637840 B1 FR2637840 B1 FR 2637840B1 FR 8813711 A FR8813711 A FR 8813711A FR 8813711 A FR8813711 A FR 8813711A FR 2637840 B1 FR2637840 B1 FR 2637840B1
Authority
FR
France
Prior art keywords
grids
production
devices
plastic material
drainage mats
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 - Lifetime
Application number
FR8813711A
Other languages
English (en)
Other versions
FR2637840A1 (fr
Inventor
Alain Genty
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.)
Nortene SA
Original Assignee
Nortene SA
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 Nortene SA filed Critical Nortene SA
Priority to FR8813711A priority Critical patent/FR2637840B1/fr
Priority to BR898901791A priority patent/BR8901791A/pt
Priority to EP89401041A priority patent/EP0337892A1/fr
Priority to JP1096194A priority patent/JPH0248919A/ja
Publication of FR2637840A1 publication Critical patent/FR2637840A1/fr
Application granted granted Critical
Publication of FR2637840B1 publication Critical patent/FR2637840B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02B—HYDRAULIC ENGINEERING
    • E02B11/00—Drainage of soil, e.g. for agricultural purposes
    • 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
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
    • B29C48/05—Filamentary, e.g. strands
    • 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
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
    • B29C48/07—Flat, e.g. panels
    • B29C48/08—Flat, e.g. panels flexible, e.g. films
    • 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
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
    • B29C48/13—Articles with a cross-section varying in the longitudinal direction, e.g. corrugated pipes
    • 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
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/30—Extrusion nozzles or dies
    • B29C48/301—Extrusion nozzles or dies having reciprocating, oscillating or rotating parts
    • 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
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/30—Extrusion nozzles or dies
    • B29C48/345—Extrusion nozzles comprising two or more adjacently arranged ports, for simultaneously extruding multiple strands, e.g. for pelletising
    • 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
    • B29L2028/00—Nets or the like

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Agronomy & Crop Science (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)
FR8813711A 1988-04-15 1988-10-18 Grillages en matiere plastique a usage notamment de nappes de drainage et dispositifs pour leur realisation Expired - Lifetime FR2637840B1 (fr)

Priority Applications (4)

Application Number Priority Date Filing Date Title
FR8813711A FR2637840B1 (fr) 1988-10-18 1988-10-18 Grillages en matiere plastique a usage notamment de nappes de drainage et dispositifs pour leur realisation
BR898901791A BR8901791A (pt) 1988-04-15 1989-04-14 Dispositivo para realizar uma grade em materia plastica e grade obtida
EP89401041A EP0337892A1 (fr) 1988-04-15 1989-04-14 Dispositif pour réaliser un grillage en matière plastique et grillage obtenu
JP1096194A JPH0248919A (ja) 1988-04-15 1989-04-14 プラスチック材料で網を製造する装置及び該装置により製造された網

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR8813711A FR2637840B1 (fr) 1988-10-18 1988-10-18 Grillages en matiere plastique a usage notamment de nappes de drainage et dispositifs pour leur realisation

Publications (2)

Publication Number Publication Date
FR2637840A1 FR2637840A1 (fr) 1990-04-20
FR2637840B1 true FR2637840B1 (fr) 1991-02-08

Family

ID=9371132

Family Applications (1)

Application Number Title Priority Date Filing Date
FR8813711A Expired - Lifetime FR2637840B1 (fr) 1988-04-15 1988-10-18 Grillages en matiere plastique a usage notamment de nappes de drainage et dispositifs pour leur realisation

Country Status (1)

Country Link
FR (1) FR2637840B1 (fr)

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3163691A (en) * 1960-11-25 1964-12-29 Du Pont Process and apparatus for three layer net extrusion
US3616080A (en) * 1963-12-27 1971-10-26 George S Nalle Jr Apparatus for extrusion of strengthened plastic netting
FR1596269A (fr) * 1968-12-20 1970-06-15
FR2251428A2 (en) * 1973-11-16 1975-06-13 Netlon Ltd Tubular structures of concentric helical extrudates - fused with an intermediate array of longitudinal extrudates
DE3874363T2 (de) * 1987-01-21 1993-02-11 Netlon Ltd Draenagematerial und draenagekern fuer draenagesystem.

Also Published As

Publication number Publication date
FR2637840A1 (fr) 1990-04-20

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ST Notification of lapse