Underwater clearing device for round sewage treatment basins
US5422006A · kind A · utility
3Cited by
7References
20Claims
0Family size
Inventor
Key dates
| Filing date | Feb 3, 1994 |
| Grant date | Jun 6, 1995 |
| Priority date | — |
| Expiry date | Feb 3, 2014 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01D21/2427
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
An underwater clearing device for round sewage treatment basins having an approximately radially extending clearing device formed as a rake blade (8) that is revolvingly driven and sweeps along the bottom (2) of the round sewage treatment basin. The drive of the rake blade (8) being coupled to the rake blade (8) radially on the outside or radially on the inside via a toothed ring (11) provided solely for the revolving movement of the rake blade (8). The rake blade (8) and frame (10) forming a unit arranged under water. A driven transverse conveyor (31) may be provided instead of rake blade.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.