Woven fabric and process for reinforced structural composites
US5104726A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Dec 29, 1989 |
| Grant date | Apr 14, 1992 |
| Priority date | — |
| Expiry date | Dec 29, 2009 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T442/3301
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A structure multi-layer fabric (A) is disclosed having a prescribed weave pattern and mesh which provides uniform flexibility and which can be used as structural fabric or impregnated with a resin in a structural composite. The flexibility of the fabric facilitates conforming of the fabric to a desired shape. The rising and sinking warp yarns in the warp and weft directions facilitate effective impregnation by defining trough-like structures in the fabric, as well as enhancing the fabric flexibility. The fabric is characterized as having (N) layers, 2N basic warp yarns woven in a 2N yarn repeat, and 2N-2) basic weft yarns woven in a (2N-2) yarn repeat. In the illustrated embodiment, there are 10 basic weft yarn picks (60,62,64,66,68,70,72,74,76,78) and twelve basic warp yarns (34,36,38,40,42,44,46,48,50,52,54,56) woven in 6 layers (D,E,F,G,H,I). Warp yarns (B) and weft yarns (C) rise and sink in the fabric between outer face (30) and outer face (32). A first plurality of weft spaces (80) are defined in the fabric by rising pairs and sinking pairs of warp yarns (B). A first plurality of warp spaces (86) are defined in the fabric by rising pairs and sinking pairs of weft yarns (C). T…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.