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 realisationInfo
- 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
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)
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)
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. |
-
1988
- 1988-10-18 FR FR8813711A patent/FR2637840B1/fr not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
FR2637840A1 (fr) | 1990-04-20 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
CL | Concession to grant licences | ||
ST | Notification of lapse |