Non-clogging filtrate outlet stopper for use in a plate filter press
US5045191A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Mar 12, 1990 |
| Grant date | Sep 3, 1991 |
| Priority date | — |
| Expiry date | Mar 12, 2010 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01D25/215
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
The plate filter press is designed for removing water from product and sewage sludges and includes several filter plates displacably suspended on horizontal carriers. Each of the filter plates includes grooves formed thereon leading to outlet openings located in corners of the plates. The grooves are covered by a filter cloth stiffened by a supporting fabric. Each of the corners further includes a stopper inserted into the outlet opening of the corner with each of stopper provided with a plate-like cover member and a through opening to allow filtrate to pass under the cover member and through the outlet opening. The filter cloth and the supporting fabric are secured in relation to the cover member of the stopper such that, in use, the outlet opening of the plate will remain unclogged.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.