Water analysis systems
US5773297A · kind A · utility
1Cited by
6References
9Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 11, 1996 |
| Grant date | Jun 30, 1998 |
| Priority date | — |
| Expiry date | Apr 11, 2016 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T436/163333
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A method and apparatus for analysing a chemical species in a fluid are disclosed. The apparatus includes filtering apparatus (15, 17) upstream and downstream of the sample preparation section (3). The fluid is diverted from a line (1) by an arrangement of pumps (27) and valves through the upstream filter (15) to the digester (11) and through the downstream filter (17) out to the analyser/detector system (5). The pumps (27) and valve arrangement allows the purging of the sample preparation section (3) and backflushing of the filters (15, 17), the inlet line (7) and the outlet line (13).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.