Gravity liquid filtration apparatus
US6095343A · kind A · utility
Inventors
Key dates
| Filing date | Dec 23, 1998 |
| Grant date | Aug 1, 2000 |
| Priority date | — |
| Expiry date | Dec 23, 2018 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01D2201/22
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A gravity liquid filtration apparatus includes a housing with a pool forming assembly mounted between a pair of side walls in the housing. The pool forming assembly includes a central shaft with a pair of spaced-apart discs rotatably mounted on the shaft between the side walls. A filter media is supported on an endless loop carrier belt, and pressed against the peripheral edges of the containment discs along bottom arcs thereof to form a generally semi-cylindrical shaped pool. A liquid inflow assembly on the housing includes a delivery head with a nozzle portion having an elongated mouth aimed downwardly to discharge liquid onto a downwardly sloped portion of the filter media. A box is formed in the delivery head above the nozzle of a size to permit large objects such as pens and pencils to fall flat and be discharged through the mouth of the nozzle. Each disc in the pool forming assembly includes a groove along the peripheral edge with a resilient seal ring journaled in the groove to provide a seal against the filter media and carrier belt. Each disc includes a plurality of overflow apertures formed therein and located along a circle centered on the shaft. Pusher bar assemblies ar…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.