Filter having a media retaining plate
US7192521B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Dec 8, 2005 |
| Grant date | Mar 20, 2007 |
| Priority date | — |
| Expiry date | Dec 8, 2025 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01D24/4631
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A filtration system that includes a plurality of underdrain blocks arranged to define a plurality of laterals. Each underdrain block defines an interior and an exterior and has an orifice that provides fluid communication between the exterior and the interior. The system also includes a plurality of media retaining plates. Each plate includes a plurality of slots that extend through the plate. Each slot has an average width of less than 0.065 inches. Each plate connects to only one of the plurality of underdrain blocks such that the slots provide fluid communication between the exterior and the orifice of the underdrain block to which the plate is attached.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.