Compact filter assembly for removing oil mist and odor from an airstream
US9120042B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 30, 2013 |
| Grant date | Sep 1, 2015 |
| Priority date | — |
| Expiry date | Aug 30, 2033 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01D46/2411
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A device for removing oil mist and odors from an airstream comprising a base having an air inlet in the lower end thereof for receiving an airstream. A first tubular filter has a first end and a second end. The first end is closed, and the second end is mounted on the base wherein the first tubular filter defines an inner chamber that is in communication with the air inlet. A second tubular filter is mounted on the base. The second tubular filter surrounds the first tubular filter and defines an outer chamber therebetween. An opening is formed through the base. The opening connects the outer chamber with the air inlet. A valve element is disposed in the base. The valve element allows flow from the outer chamber to the air inlet when pressure in the outer chamber exceeds pressure in the air inlet.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.