Shaped unidirectional fiber preforms
US5650229A · kind A · utility
19Cited by
21References
4Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 15, 1996 |
| Grant date | Jul 22, 1997 |
| Priority date | — |
| Expiry date | Aug 15, 2016 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/2933
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A fiber filler for filling voids between mated fiber plies, for example, as occurs in the preparation of a preform assembly for forming a T-shaped structural member, is disclosed. The fiber filler comprises a plurality of unidirectional fibers, shaped to conform to the shape of the void and a stabilizer intermingled with the unidirectional fibers. The stabilizer is present in an amount sufficient to hold the fibers together in the shape of the void, but below an amount which would inhibit resin flow during subsequent injection, so that the fiber filler is fully integrated into the final part.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.