Leak detection in vacuum bags
US9500593B2 · kind B2 · utility
3Cited by
138References
9Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 18, 2014 |
| Grant date | Nov 22, 2016 |
| Priority date | — |
| Expiry date | Sep 23, 2034 |
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.