Ceramic filter
US5273650A · kind A · utility
22Cited by
20References
13Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 17, 1992 |
| Grant date | Dec 28, 1993 |
| Priority date | — |
| Expiry date | Dec 17, 2012 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC02F2201/006
- WIPO fieldEnvironmental technology
- WIPO sectorChemistry
Abstract
A water filter cartridge for use in a water filtration system comprises a generally cylindrical ceramic pre-filter having a chamber containing a purification resin. An exit cap having a porous disc therein is attached at a first end of the pre-filter. Water to be filtered passes radially through the pre-filter into the chamber. The water then passes through the purification resin and the porous disc and exits the water filter cartridge through an opening in the exit cap. The ceramic pre-filter can be cleaned when it begins to lose its effectiveness, enabling it to be reused.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.