Method of making a dual filter
US6446814B1 · kind B1 · utility
23Cited by
14References
8Claims
0Family size
Inventor
Key dates
| Filing date | Apr 17, 2000 |
| Grant date | Sep 10, 2002 |
| Priority date | — |
| Expiry date | Apr 17, 2020 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC02F2201/006
- WIPO fieldEnvironmental technology
- WIPO sectorChemistry
Abstract
A dual filter apparatus and a process of making a dual filter apparatus that minimizes disruption to the normal flow pattern through the filter apparatus by forming a porous medium suitable to carry a water treatment composition thereon and placing a bacteria killing material proximate the porous filter medium for in situ killing of bacteria and removal of debris from the water by screening action of the porous filter medium that entraps debris thereon.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.