Filter cartridge assembly for water treatment device
US6649045B2 · kind B2 · utility
30Cited by
9References
19Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 21, 2002 |
| Grant date | Nov 18, 2003 |
| Priority date | — |
| Expiry date | May 21, 2022 |
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.