Air treatment system
US6605132B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jan 18, 2002 |
| Grant date | Aug 12, 2003 |
| Priority date | — |
| Expiry date | Jan 18, 2022 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02C20/40
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A system for treating air for supply to an enclosed space in which the air is to be breathed, includes an inlet through which air can enter the system from atmosphere for supply to the enclosed space, and a regenerative adsorption assembly having at least two chambers which contain an adsorbent material, arranged so that air flowing in the inlet for supply to the enclosed space can pass through one of the chambers for adsorption of contaminants before supply to the enclosed space while adsorbent material in another of the chambers is purged of adsorbed contaminants. A recirculation path is provided for supplying air from the enclosed space to the inlet to be mixed with air from atmosphere before it is supplied to the enclosed space. The system includes structure for adjusting the resistance to flow of air through the recirculation path.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.