Filter apparatus
US7638051B2 · kind B2 · utility
2Cited by
7References
15Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Oct 12, 2006 |
| Grant date | Dec 29, 2009 |
| Priority date | — |
| Expiry date | Dec 29, 2027 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01D2201/34
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A filter apparatus in a container containing non-clarified contaminated liquid, especially wastewater, for clarifying this liquid consists of several spaced filter elements arranged in a circle or a polygon on a rotatably supported hollow shaft. The filter elements are connected to the hollow shaft in order to remove clarified liquid as permeate through the hollow shaft out of the container via a stationary pipeline. The rotating hollow shaft separates the wastewater from the permeate via at least two sealing elements. A blocking medium is arranged between the sealing elements.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.