Portable differential pressure generator
US7111491B2 · kind B2 · utility
8Cited by
20References
15Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 24, 2005 |
| Grant date | Sep 26, 2006 |
| Priority date | — |
| Expiry date | Feb 24, 2025 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01L27/005
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A dual range dynamic pressure differential generator for use at low pressures using a differential over a variable valve for a first stage pressure differential and the differential over a flow accelerator for a second stage pressure differential. The differential over the variable valve is useful for higher pressure differentials while the differential created over the flow accelerator is useful for a lower range pressure differential, although the two ranges may overlap.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.