Dual filter
US6447677B2 · kind B2 · utility
11Cited by
0References
22Claims
0Family size
Inventor
Key dates
| Filing date | Jul 16, 2001 |
| Grant date | Sep 10, 2002 |
| Priority date | — |
| Expiry date | Jul 16, 2021 |
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.