Apparatus for securing underdrain filter block
US10112128B2 · kind B2 · utility
1Cited by
24References
9Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 27, 2015 |
| Grant date | Oct 30, 2018 |
| Priority date | — |
| Expiry date | Apr 6, 2036 |
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 including a top wall, a pair of side walls extending from the top wall, a bottom wall extending between the pair of side walls, and a transverse wall extending from one of the pair of side walls to the other of 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 positioned between the bottom wall and the transverse wall and at least one of the bottom wall and said side walls contains an opening.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.