Filter arrangement including at least one drum-type filter
US5114444A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Dec 13, 1990 |
| Grant date | May 19, 1992 |
| Priority date | — |
| Expiry date | Dec 13, 2010 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01D2273/28
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A filter arrangement includes at least one drum-type filter. A suction device is provided for suctioning of the inside of the drum-type filter along a helical line. The suction device includes at least one suction hose and a suction nozzle provided at the free end of the suction hose. The suction nozzle is constructed for contacting the inner side of the drum-type filter. The suction hose is attached to an end portion of a rotatable suction pipe. The end portion is constructed so as to be movable back and forth in longitudinal direction of the drum-type filter, so that movement in longitudinal direction and rotary movement of the end portion of the suction pipe results in a suctioning-off of the cylindrical inner side of the drum-type filter along a helical line.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.