Leak detection in vacuum bags
US8707766B2 · kind B2 · utility
20Cited by
131References
21Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 21, 2010 |
| Grant date | Apr 29, 2014 |
| Priority date | — |
| Expiry date | Nov 14, 2030 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N21/783
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A device indicates the location of an air leak in a vacuum bag used to process composite parts. The device includes a layer of material on the inner face of the bag that changes in appearance due to an oxidation-reduction reaction in areas of the layer exposed to oxygen caused by a leak in the bag.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.