Capillary tube determining the leakage rate for a test leak
US5663487A · kind A · utility
7Cited by
4References
5Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jul 30, 1996 |
| Grant date | Sep 2, 1997 |
| Priority date | — |
| Expiry date | Jul 30, 2016 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01M3/207
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
The invention relates to a capillary tube (1) determining the leakage rate for a test leak; in order to simplify its production and reduce the risk of breakage, it is proposed that the capillary tube (1) be a prior art quartz capillary tube encased in plastic. A holder joined to one end of the capillary tube by a removable connecting coupler has a nozzle for introducing a test sample into the tube.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.