Pi-shaped preform with bias fibers
US9604389B2 · kind B2 · utility
4Cited by
8References
26Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 17, 2012 |
| Grant date | Mar 28, 2017 |
| Priority date | — |
| Expiry date | Apr 12, 2032 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T442/3203
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A woven preform for a reinforced composite material, which may be woven flat and folded into shape. The preform has off-axis reinforcement with one or more legs and/or base extending in an off axis or bias (non 0/90 degree) orientation with respect to the warp/weft fibers. One or more legs extend from a base, the base and legs each having at least two layers of warp fibers. The legs may be parallel or angled to each other. The outer ends of the base and/or the legs may have tapers formed from terminating layers of warp fibers in a stepped or angled pattern.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.