Test device for measuring chemical emissions
US6314793A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Sep 28, 1999 |
| Grant date | Nov 13, 2001 |
| Priority date | — |
| Expiry date | Sep 28, 2019 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N2001/2241
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A test device for measuring chemical emissions to the atmosphere from a leaking component that includes a housing containing an air mover for drawing ambient air directly into the housing. The air mover is capable of operating at a high flow rate and a low flow rate. A detector for detecting the presence of a chemical emission is positioned within the housing as well as a calculator for measuring the concentration of the chemical emission. Air is drawn directly into a housing at a low flow rate in a survey mode and once a leak is detected air is drawn directly into the housing at a high flow rate in a quantification mode. During the quantification mode the calculator determines a leak rate from the leaking component or alternatively indicates that the calculated leak rate is unreliable.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.