Filter with axially and rotatably movable wiper
US5569383A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Dec 15, 1994 |
| Grant date | Oct 29, 1996 |
| Priority date | — |
| Expiry date | Dec 15, 2014 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01D2201/34
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A self-cleaning pressure filter system comprises a housing having an unfiltered liquid inlet and a filtered liquid outlet, a filter element of substantially constant cross section having an interior communicating with the unfiltered liquid inlet and an exterior communicating with the filtered liquid outlet for filtering solids from the liquid and wherein filtered out solids are left in the interior of the filtered element. A cleaning unit is simultaneously moved both axially and rotatively along the interior of the filter element and carries at least one cleaning blade movable in a spiral path along the interior face of the filter element for removing solids accumulated thereon.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.