Chemical sampling and multi-function detection methods and apparatus
US7997119B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Apr 17, 2007 |
| Grant date | Aug 16, 2011 |
| Priority date | — |
| Expiry date | Dec 30, 2027 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N2001/028
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
This invention describes a sample collection method that could release and collect residues of explosives and other chemicals from a surface; the described method is implemented into a compact detection system that can be used as a “wand” for screening chemicals residues on a subject. The wand configuration includes multi-function for sampling and detecting multiple threads. The invention further describes a method of inspecting a subject using an interrogating apparatus in a sweeping motion; the near range closed loop particle sampling arrangement allows effective collection of particle and vapor residues from a targeted surface. The invention also describes a sampling and detecting apparatus for on-the-fly threat detection using compact ion mobility based detectors.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.