Method and apparatus for the continuous capturing and removal of gas molecules
US5704966A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jun 19, 1996 |
| Grant date | Jan 6, 1998 |
| Priority date | — |
| Expiry date | Jun 19, 2016 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/2975
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A unique filtration method and device (10) which continuously removes several gas phase contaminants from an air stream through the use of partially hollow wicking fibers (20) impregnated with a selected liquid which can capture the gas phase contaminants. The wicking fibers (20) are generally disposed parallel and are formed into a filter element (12) which extends from the air stream to be cleaned into another air stream which can strip and carry away the unwanted gas phase contaminants. The gas phase contaminants are conveyed to the stripping air stream by a concentration factor induced molecular migration. The air stream to be cleaned is directed through a compartment (16) across which the filter element (12) extends so the complete air flow is through filter element (12). Filter element (12) also extends into another compartment (18) through which the stripping air stream flows. The wicking fibers (20) include internal longitudinal cavities (22) each with a relatively small longitudinal extending opening (24). The wicking fibers (20) are filled with the selected contaminant removing liquid through capillary action by which the individual wicking fibers (20) rapidly draw the se…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.