Filter assembly for a faucet
US6464869B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | Jul 6, 2001 |
| Grant date | Oct 15, 2002 |
| Priority date | — |
| Expiry date | Jul 6, 2021 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC02F2307/06
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A filter assembly for a faucet includes a filtering element accommodated within a filter body. A sleeve is disposed within a neck portion of the filter body. A lock ring is sleeved threadably on the filter body, and pushes a ball to project partially from an inner surface of the neck portion so that the ball presses downwardly against a stop shoulder of the sleeve, thereby preventing upward removal of the sleeve from the neck portion. In assembly, when the sleeve is mounted into the neck portion, a curved pushing surface of the sleeve pushes the ball to project partially from an outer surface of the neck portion. Subsequently, when the lock ring is mounted on the filter body, it pushes the ball to project partially from the inner surface of the neck portion.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.