Pneumatic measurement apparatus
US5140846A · kind A · utility
4Cited by
6References
3Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 15, 1991 |
| Grant date | Aug 25, 1992 |
| Priority date | — |
| Expiry date | Jan 15, 2011 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01D5/42
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
The apparatus of the invention comprises a measurement chamber fed with gas under pressure by a feed nozzle, a measurement chamber having an outlet nozzle spaced apart from the feed nozzle and including a pressure take-off point disposed between the feed nozzle and the outlet nozzle. According to the invention, a separating partition extends inside the measurement chamber overlying the pressure take-off point and co-operates with the wall of the measurement chamber to determine a volume which is closed in airtight manner at its outlet nozzle end and which is open at its inlet nozzle end in the vicinity of the inlet nozzle.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.