Chamber condition
US9111427B2 · kind B2 · utility
22Cited by
13References
27Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 7, 2010 |
| Grant date | Aug 18, 2015 |
| Priority date | — |
| Expiry date | Jun 6, 2031 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG08B29/24
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A particle detector including a chamber, a first aspirator, a sensor(s), a controller and clean air supply. The controller, when in a detecting mode, receives an indicative signal from the sensor and applies logic to the indicative signal to generate a further signal, and when in the purge mode controls substantial purging of the chamber of sample fluid with clean fluid from the clean fluid supply. The controller receives the indicative signal when the chamber is so purged and if necessary adjusts the logic in response thereto.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.