Process for making a curved preform made from woven composite materials
US7045084B1 · kind B1 · utility
15Cited by
5References
14Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 10, 2004 |
| Grant date | May 16, 2006 |
| Priority date | — |
| Expiry date | Aug 10, 2024 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB29B11/16
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
The invention is a process for forming a preform for use in a structure having at least one curved portion of a specific length, including the steps of: 1) providing a preform having cable of expanding in length threads in rows parallel to the direction of curvature over a length equal to the length requiring curvature, such that the gaps between each thread row are spaced from the gaps in the adjacent tread rows; and 2) stretching the portions of the preform requiring curvature in a sine-wave pattern.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.