Laser smoke particulate/odor filter system
US4826513A · kind A · utility
Inventors
Key dates
| Filing date | Jan 25, 1988 |
| Grant date | May 2, 1989 |
| Priority date | — |
| Expiry date | Jan 25, 2008 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01D46/12
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
There is herein described an improved laser smoke particulate/odor filter including an upstream gross particulate portion that both filters and disperses the smoke, a single charcoal odor adsorption portion, a downstream particulate portion for removing smaller gross particles, and a final filtering portion for filtering out any remaining undesirable contaminated particulate. Another embodiment utilizes an upstream particulate portion that filters and disperses the smoke followed by a first and second charcoal adsorption portions of unequal sizes that are separated by a second smoke dispersion member disposed between the first and second charcoal odor adsorption portions.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.