Filter cartridge assembly for water treatment device
US6423224B1 · kind B1 · utility
42Cited by
35References
6Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 15, 1999 |
| Grant date | Jul 23, 2002 |
| Priority date | — |
| Expiry date | Mar 15, 2019 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC02F2307/04
- WIPO fieldEnvironmental technology
- WIPO sectorChemistry
Abstract
A filter cartridge end-of-life mechanism and a filter cartridge assembly for a water treatment device. The end-of-life mechanism comprises a float which is moved along an escapement path each time the device is filled. A counting mechanism connected to the float provides a continuous visual indication of the amount of useful life remaining in the filter cartridge. The cartridge assembly includes a tray detachably connected to a filter cartridge. The tray is positioned beneath the outlet end of the cartridge to remove water treatment particles from the treated water.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.