Filters for purification of gases
US4559066A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Nov 6, 1984 |
| Grant date | Dec 17, 1985 |
| Priority date | — |
| Expiry date | Nov 6, 2004 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01D2259/41
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
Detectable vapors, odors and smells are removed from a stream of compressed air entering a tubular cartridge and passing axially through a cylindrical bonded granular or supported granular sorbent bed or radially through a bonded granular or supported granular tubular sorbent bed arranged so that the air velocity therethrough is not greater than 300 ft/min and the minimum contact time with the granules is 0.1 seconds, the bed being arranged to be traversed by the entire volume of air passing through the cartridge. The air then passes through a surrounding microporous or pleated filter element prior to being discharged radially from the cartridge.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.