Mandrel-wound flocculant-containing fiber filtration tubes
US7883291B2 · kind B2 · utility
14Cited by
16References
19Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 19, 2008 |
| Grant date | Feb 8, 2011 |
| Priority date | — |
| Expiry date | Nov 19, 2028 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE02D17/20
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
Fiber filtration tubes containing flocculant are produced by winding a preformed mat of natural fibers about a mandrel. The tubes may be joined end to end to produce products of significant length, and are highly suitable in removing even very fine sediment during use in erosion control.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.