Composite laminate structure
US9334039B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 4, 2008 |
| Grant date | May 10, 2016 |
| Priority date | — |
| Expiry date | Jul 4, 2033 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/24777
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A structure comprising a composite laminate having an edge; and an impact indicator which is carried by the edge and comprises a resin which fractures upon impact. The fracture provides permanent visible evidence of impact damage, for instance by cracking or by one or more pieces breaking off from the impact indicator. As well as providing such visible evidence of impact damage, the impact indicator may also provide an element of impact protection. Typically the impact indicator is formed from a resin which is more brittle and less strong than the material forming the composite laminate. For instance the material forming the composite laminate may be reinforced, and the resin forming the impact indicator may be un-reinforced.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.