Tracer-gas leak detector
US5226314A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Oct 15, 1991 |
| Grant date | Jul 13, 1993 |
| Priority date | — |
| Expiry date | Oct 15, 2011 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01M3/202
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
The invention provides a tracer-gas leak detector including a secondary pumping set, a sole primary pumping set, a mass spectrometer connected to the inlet of the secondary pumping set, the outlet of the secondary pumping set being connected to the inlet of the primary pumping set by means of a duct equipped with an electromagnetic valve, and at least one pipe connecting a coupling for connection to an enclosure to be tested to the secondary pumping set, said pipe being equipped with a pneumatic valve which is opened by suction, wherein a buffer volume is connected both to a suction inlet of the primary pumping set by a link duct equipped with a first electrically actuated valve, and also to said pneumatic valve by a control duct equipped with a second electrically actuated valve.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.