Water purification apparatus and system
US7229552B1 · kind B1 · utility
9Cited by
5References
14Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Nov 26, 2003 |
| Grant date | Jun 12, 2007 |
| Priority date | — |
| Expiry date | Sep 30, 2024 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC02F1/288
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
The invention relates to a two-stage design for a water purification system, with water to be purified first passing through a first stage containing particulate filtration media, and a second stage containing a porous filtration block. The particulate filtration media can be the same as, or different from, material included in the porous block. Either material may be any material that removes contaminants from water by, e.g., absorption, adsorption, ion exchange, sequestration, or other mechanism, or any combination of these.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.