Dust filter
US6551368B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | Apr 9, 2002 |
| Grant date | Apr 22, 2003 |
| Priority date | — |
| Expiry date | Apr 9, 2022 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01D46/79
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A dust filter has a vertically oriented filter housing and a partition dividing the filter housing into a lower dust-contaminated air chamber and an upper clean air chamber. The partition has a plurality of openings. Self-supporting filter tubes are suspended from the openings and extend into the lower dust-contaminated chamber, wherein the self-supporting filter tubes are open upwardly in a direction toward the clean air chamber. Several self-supporting filter tubes are combined to a filter bundle, respectively, wherein a spacing between the self-supporting filter tubes of each filter bundle is smaller than a spacing of the filter bundles relative to one another. A device for cleaning off dust and product particles adhering to outer surfaces of the self-supporting filter tubes is provided.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.