Method for continuously manufacturing a composite preform
US5897818A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Feb 3, 1997 |
| Grant date | Apr 27, 1999 |
| Priority date | — |
| Expiry date | Feb 3, 2017 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T137/7761
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A continuous composite structure manufacturing apparatus which comprises a conveyor or conveyors for conveying one or more fabric webs along a conveying path. Each of the webs is comprised of a reinforcing fabric, a non-woven fabric, or a layered fabric. The fabric web is passed through the conveyor so that it defines an enclosed foam injection zone. A foam injection system is provided for injecting foam into the foam injection zone to form a foam core preform (or a plurality of same). One or more dies are positioned along the conveying path, to shape each of the foam core preform(s) to a desired cross-sectional profile. The individual stringers or multiple, spaced apart, stringers are produced concurrently in a continuous production process.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.