Method and apparatus for detecting rapid barrier coating integrity characteristics
US9903782B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 15, 2013 |
| Grant date | Feb 27, 2018 |
| Priority date | — |
| Expiry date | Jan 25, 2034 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01M3/229
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
An apparatus and methods for testing the integrity of a barrier coating on a vessel. An off gas test fixture includes a face seal positioned about an opening of the vessel. A side seal is positioned about a portion of the vessel's wall and separated from the face seal by a space. Additionally, a cover may be secured to the fixture that encompasses an interface portion of the fixture and the vessel. Before and/or during testing, gas in the space between the side and face seals may be evacuated, as well as gas present in an interior area of the vessel. The vessel may be exposed to test gas(es) that is soluble by the plastic material of the vessel before and/or after being secured to the fixture. During testing, test gas(es) desorbed by the vessel may be evacuated, with the molecular flow being measured using a mass extraction unit.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.