Circular clarifier including improved skimmer clarifier
US5200079A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jun 20, 1990 |
| Grant date | Apr 6, 1993 |
| Priority date | — |
| Expiry date | Jun 20, 2010 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01D21/307
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A circular clarifier includes a skimmer assembly mounted on a rotatable arm of the clarifier. The skimmer assembly includes a parallelogram linkage having a pair of end links pivotably connected between upper and lower intermediate links. The skimmer blade is mounted to one of the end links to skim the liquid containing volume of the clarifier. The parallelogram linkage is mounted to the rotating arm by a support assembly at upper and lower pivot connections. These pivot connections are positioned at central portions of the respective intermediate links such that both of the intermediate links extend outwardly on both sides of the respective pivot connection. Either a counterweight or a floatation element is mounted to the parallelogram linkage to bias the linkage for rotation about the pivot connections to position the skimmer blade in an upper position.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.