Method of forming a conduit using a wound sacrificial layer
US7291240B2 · kind B2 · utility
54Cited by
86References
7Claims
0Family size
Assignee
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Key dates
| Filing date | Sep 5, 2003 |
| Grant date | Nov 6, 2007 |
| Priority date | — |
| Expiry date | May 4, 2024 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/139
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A thin ribbon spirally wound polymer conduit and method of forming, wherein a helical reinforcing bead is interposed adjacent overlapping layers of ribbon. Further, a method of continuously forming spirally wound conduit wherein a sacrificial layer, preferably having a different base polymer to that of the conduit, is first applied to the former before the conduit is formed overtop.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.