Filter monitor-flow meter combination sensor
US7937987B2 · kind B2 · utility
1Cited by
22References
11Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Sep 28, 2007 |
| Grant date | May 10, 2011 |
| Priority date | — |
| Expiry date | Jan 22, 2030 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N2015/0873
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A method for monitoring a filter installed in a fluid system. The steps include providing a reference region in the fluid system, the region including a chamber having a known volume and releasing a fluid from the chamber configured to flow through the reference region. The method further includes measuring pressure and temperature values at predetermined locations at predetermined time intervals and determining filter permeability values in response to measured pressure and temperature values. The method further includes comparing the filter permeability values to predetermined filter permeability values.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.