System and method for air sampling in controlled environments
US9063040B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 30, 2012 |
| Grant date | Jun 23, 2015 |
| Priority date | — |
| Expiry date | Jan 5, 2033 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG08B21/182
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A system and method for sampling air in a controlled environment having air sampling devices therewithin. A controller, outside the controlled environment, in separate flow communication with each sampling device via first vacuum tubes, and having a manifold for directing air from the first vacuum tubes to one or more second vacuum tubes. A vacuum source outside the controlled environment, in flow communication with the controller via the second vacuum tube(s), providing suction, and being controlled by the controller to generate flow through the first vacuum tubes. A flow switch between each sampling device and the vacuum source, for measuring and controlling the flow rate through a corresponding first vacuum tube. An alarm inside the controlled environment, is activated by a flow switch when the corresponding flow rate deviates from a desired value by a predetermined amount.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.