Large composite structures and a method for production of large composite structures incorporating a resin distribution network
US6773655B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 7, 1996 |
| Grant date | Aug 10, 2004 |
| Priority date | — |
| Expiry date | May 7, 2019 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T442/3325
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
Large composite structures are produced using a vacuum assisted resin transfer molding process incorporating a resin distribution network. The resin distribution network is provided by a textured sheet of metal formed as an integral vacuum bag and mold. The texture is formed by upraised portions on one side of the sheet which correspond with depressions on the other side. Valleys between the upraised portions form the resin distribution network. A fiber lay up is placed against the textural sheet with the upraised portions facing the lay up. Main feeder grooves are also formed directly in the sheet. Resin is supplied under vacuum to the main feeder grooves, from where it travels through the valleys of the textured sheet to impregnate the lay up.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.