Composite structures having integrated stiffeners with smooth runouts and method of making the same
US8636252B2 · kind B2 · utility
16Cited by
41References
18Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 24, 2011 |
| Grant date | Jan 28, 2014 |
| Priority date | — |
| Expiry date | Sep 12, 2031 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/24612
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A unitized composite structure comprises a composite member having at least one integrally formed composite stiffener. At least one end of the stiffener includes a runout forming a substantially smooth transition between the stiffener and the composite structure. The stiffener and runout may comprise a crown, side walls, and base cap. The transition in the runout may include a width of the crown increasing, a height of the side walls decreasing, and the base cap splaying outwardly.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.