Underdrain filter block including a grout chamber
US8889003B2 · kind B2 · utility
4Cited by
18References
11Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 3, 2011 |
| Grant date | Nov 18, 2014 |
| Priority date | — |
| Expiry date | Nov 19, 2031 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/49828
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
An underdrain filter block for use in draining and backwashing a filtering media in a filter bed includes a top wall, a pair of side walls extending from the top wall, and a bottom wall extending between the pair of side walls. The top wall, the pair of side walls, and the bottom wall define an upper portion and a lower portion. The lower portion includes a grout chamber having a plurality of openings defined by at least one of the bottom wall and the pair of side walls.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.