Rotary plate filter apparatus
US3994813A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jun 11, 1975 |
| Grant date | Nov 30, 1976 |
| Priority date | — |
| Expiry date | Jun 11, 1995 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01D29/416
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A hollow upright shaft is surrounded at axially spaced locations by spacer rings. Intermediate these rings the shaft is surrounded by substantially horizontally oriented plate-shaped filter elements which rotate with the shaft. Each filter element has a liquid-impermeable annular plate the upper surface of which carries a filter material. The inner circumference of the plate is formed with a downwardly extending stepped collar which is received in the subjacent spacer ring and thus centers the filter element with reference to the ring and to the shaft. The latter has openings in its periphery through which filtered liquid can flow into the interior of the shaft, to be led away.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.