Determining effluent concentration profiles and service lives of air purifying respirator cartridges
US8328903B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 22, 2008 |
| Grant date | Dec 11, 2012 |
| Priority date | — |
| Expiry date | Aug 10, 2031 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA62B18/088
- WIPO fieldOther consumer goods
- WIPO sectorOther fields
Abstract
A method for determining at least one of an effluent concentration profile, a breakthrough time and a filter cartridge recommendation includes receiving at least one input parameter, determining at least one of the effluent concentration profile, the breakthrough time and the filter cartridge recommendation based on the input parameter, and graphically displaying at least one of the effluent concentration profile, the breakthrough time, and the filter cartridge recommendation. The effluent concentration profile includes a plot of a concentration of a chemical species over a period of time. The breakthrough time includes a time at which a predetermined concentration of the chemical species passes through a filter cartridge.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.