发明名称 |
Composite strip windable to form a helical pipe and method therefor |
摘要 |
A composite strip 10 windable to form a helical pipe is disclosed. The composite strip 10 comprises: an elongate plastic strip 11 having a base portion 12 and at least one lengthwise extending rib portion 20 upstanding from the base portion 12 ; and an elongate reinforcing strip 30 extending lengthwise and supported laterally by the rib portion 20 , the reinforcing strip 30 having a height to thickness ratio of at least three to one and orientated substantially perpendicular to the base portion 12 . When wound into a helical pipe, the reinforcing strip 30 reinforces the pipe against radial crushing loads. A bead 40 seals the reinforcing strip 30 from the environment. Desirably the composite strip 10 further comprises: a planar lamina 50 extending lengthwise and bonded to the base portion 12 , the lamina 50 having a higher Young's modulus and strength than those of the plastic strip 11 . The lamina 50 greatly improves the pressure rating of a pipe wound from the strip 10.
|
申请公布号 |
US2007181203(A1) |
申请公布日期 |
2007.08.09 |
申请号 |
US20060648836 |
申请日期 |
2006.12.29 |
申请人 |
RIB LOC AUSTRALIA PTY LTD. |
发明人 |
BATEMAN IAN R.;UYSAL GULCAY |
分类号 |
F16L11/00;B29C47/02;B29C47/28;B29C53/58;B29C53/78;B29C63/32;B29L23/00;F16L9/16;F16L55/165 |
主分类号 |
F16L11/00 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|