Foam stiffened hollow composite stringer
US7879276B2 · kind B2 · utility
24Cited by
19References
14Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 8, 2007 |
| Grant date | Feb 1, 2011 |
| Priority date | — |
| Expiry date | Sep 25, 2028 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/24744
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A method and apparatus for a composite stringer. A method is used for manufacturing a hollow composite stringer. Foam is formed with a mandrel installed into the foam. A composite material and the foam is laid up onto a tool in a form of a stringer. The composite material and the foam in the form of the stringer is cured to form a cured stringer. The mandrel from the foam is removed to form the hollow composite stringer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.