Filtering apparatus
US4292178A · kind A · utility
14Cited by
5References
3Claims
0Family size
Inventors
Key dates
| Filing date | Aug 2, 1979 |
| Grant date | Sep 29, 1981 |
| Priority date | — |
| Expiry date | Aug 2, 1999 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01D35/12
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A filtering apparatus includes a plurality of disc-type filtering elements stacked in parallel with each other. Each disc-type filtering element has one or more annular projections thereon facing an adjacent disc defining a filtering slit. One or more fluid passages define a filtering path therethrough. Fine particles are filtered from a fluid by the slits between the adjacent filtering elements. Adjustment of the slit widths permits trapped particles to be removed by back-washing. A power cylinder permits automatic filtering and back-washing.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.