Pressure measurement method for gas leakage from sealed packages
US6450011B1 · kind B1 · utility
8Cited by
13References
9Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 24, 2000 |
| Grant date | Sep 17, 2002 |
| Priority date | — |
| Expiry date | Nov 24, 2020 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01M3/329
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A non-destructive method for testing sealed packages for leakage, particularly packages having a gas-permeable portion and a non-gas-permeable portion, by applying a temporary barrier over the gas-permeable portion, wherein the temporary barrier has an aperture, and connecting the aperture to a pressure monitor, and recording the pressure drop in the sealed package, via the aperture, for a predetermined time.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.