IT1034462B - Procedimento e dispositivo per la fabbricazione di tubi a parete dop pia fatti di materia plastica aven ti parete esterna con nervature ad anelli o ad elica - Google Patents
Procedimento e dispositivo per la fabbricazione di tubi a parete dop pia fatti di materia plastica aven ti parete esterna con nervature ad anelli o ad elicaInfo
- Publication number
- IT1034462B IT1034462B IT2149475A IT2149475A IT1034462B IT 1034462 B IT1034462 B IT 1034462B IT 2149475 A IT2149475 A IT 2149475A IT 2149475 A IT2149475 A IT 2149475A IT 1034462 B IT1034462 B IT 1034462B
- Authority
- IT
- Italy
- Prior art keywords
- die
- double walled
- air
- walled tube
- extrusion
- Prior art date
Links
Landscapes
- Extrusion Moulding Of Plastics Or The Like (AREA)
- Blow-Moulding Or Thermoforming Of Plastics Or The Like (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE2413879A DE2413879C3 (de) | 1974-03-22 | 1974-03-22 | Vorrichtung zur Herstellung eines doppelwandigen Kunststoffrohrs aus einem gewellten Außenrohr und einem glatten Innenrohr |
DE2413878A DE2413878C3 (de) | 1974-03-22 | 1974-03-22 | Verfahren zum Herstellen eines doppelwandigen Kunststoffrohrs mit gewellter Außen- und glatter Innenwand und Vorrichtung zur Durchführung dieses Verfahrens |
Publications (1)
Publication Number | Publication Date |
---|---|
IT1034462B true IT1034462B (it) | 1979-09-10 |
Family
ID=25766857
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
IT2149475A IT1034462B (it) | 1974-03-22 | 1975-03-21 | Procedimento e dispositivo per la fabbricazione di tubi a parete dop pia fatti di materia plastica aven ti parete esterna con nervature ad anelli o ad elica |
Country Status (9)
Country | Link |
---|---|
AR (1) | AR207352A1 (fi) |
BG (1) | BG27885A3 (fi) |
BR (1) | BR7501741A (fi) |
EG (1) | EG11746A (fi) |
FI (1) | FI60990C (fi) |
IL (1) | IL46892A (fi) |
IT (1) | IT1034462B (fi) |
PL (1) | PL100947B1 (fi) |
YU (1) | YU67975A (fi) |
-
1975
- 1975-01-01 AR AR25797175A patent/AR207352A1/es active
- 1975-03-14 BG BG2930275A patent/BG27885A3/xx unknown
- 1975-03-19 YU YU67975A patent/YU67975A/xx unknown
- 1975-03-20 FI FI750830A patent/FI60990C/fi not_active IP Right Cessation
- 1975-03-20 PL PL17893375A patent/PL100947B1/pl unknown
- 1975-03-21 IL IL46892A patent/IL46892A/xx unknown
- 1975-03-21 IT IT2149475A patent/IT1034462B/it active
- 1975-03-22 EG EG14675A patent/EG11746A/xx active
- 1975-03-24 BR BR7501741A patent/BR7501741A/pt unknown
Also Published As
Publication number | Publication date |
---|---|
BR7501741A (pt) | 1975-12-23 |
AR207352A1 (es) | 1976-09-30 |
EG11746A (en) | 1978-12-31 |
FI60990C (fi) | 1982-05-10 |
AU7943675A (en) | 1976-09-30 |
IL46892A0 (en) | 1975-05-22 |
FI750830A (fi) | 1975-09-23 |
PL100947B1 (pl) | 1978-11-30 |
FI60990B (fi) | 1982-01-29 |
IL46892A (en) | 1978-07-31 |
YU67975A (en) | 1982-02-28 |
BG27885A3 (en) | 1980-01-15 |
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