Method and apparatus for generating a vapor/gas mixture, and uses therefor
US5394730A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jan 29, 1993 |
| Grant date | Mar 7, 1995 |
| Priority date | — |
| Expiry date | Jan 29, 2013 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N2001/2893
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A method and apparatus for generating a vapor/gas mixture includes storing a plurality of volatile liquids to provide the vapor component of the mixture, adding predetermined amounts of the volatile liquids and a dilution gas to a container, and thereafter removing the mixture to prepare a second vapor/gas mixture. In one approach, subsequent mixtures are prepared using different volatile liquids as the vapor component. Alternatively, a portion on the first vapor/gas mixture is removed from the container and then additional volatile liquid or dilution gas are added to the container to prepare a second vapor/gas mixture including the same vapor but at a different percentage in the mixture, or including additional vapors not used in the first vapor/gas mixture.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.