发明名称 |
FLEXIBLE DUCT WITH SHRINKAGE-PROOF FILM |
摘要 |
The invention concerns a flexible duct (1) comprising from inside outwards a carcass (2) produced by a short-pitched metallic helical winding forming butt gaps (12), an overlapping layer (10) acting as a heat shield consisting of helically wound plastic strips (10a, 10b), a sealed inner pressure sheath (3), extruded in plastic on said overlapping layer (10), at least an armouring web (5) and at least an outer sealing sheath (7). The invention is characterised in that the overlapping strips (10a, 10b) are wound at a winding angle less than 35 DEG .
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申请公布号 |
WO02066878(A1) |
申请公布日期 |
2002.08.29 |
申请号 |
WO2002FR00613 |
申请日期 |
2002.02.18 |
申请人 |
COFLEXIP;ESPINASSE, PHILIPPE, FRANCOIS |
发明人 |
ESPINASSE, PHILIPPE, FRANCOIS |
分类号 |
F16L11/08;(IPC1-7):F16L11/08 |
主分类号 |
F16L11/08 |
代理机构 |
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