Innerduct structure having increased flexibility
US7799997B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 27, 2007 |
| Grant date | Sep 21, 2010 |
| Priority date | — |
| Expiry date | Apr 27, 2027 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B6/50
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
Provided herein are flexible, low friction innerduct structures configured to contain at least one cable within a conduit. The innerduct structures, or conduit inserts, include one or more strip-shaped panels of flexible material that are joined to define at least one channel through which a cable can extend. The innerduct structures preferably are formed from a woven textile fabric having warp yarns that are monofilaments and fill yarns that are an alternating pattern of monofilament yarns and multifilament yarns. Such construction increases the flexibility of the fabric, as compared to previous innerduct fabrics, resulting in a reduction of the pulling force required to draw the cable through the innerduct and into position.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.