Liquid filter
US6811694B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Feb 10, 2003 |
| Grant date | Nov 2, 2004 |
| Priority date | — |
| Expiry date | Feb 10, 2023 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01D2201/4046
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A liquid filter for removing contaminants from liquids such as lubricating oil, water or fuel, comprising a filter housing (10), a filter element (15), a support body (16) and a slide valve (17), which, when closed, prevents liquid from flowing from an unfiltered liquid area or from a filtered liquid area to a filter outlet (24). When the filter housing is opened, the slide valve moves axially and opens the filter outlet (24) so that the filter housing can empty. The slide valve (17) is detachably snapped together with the support body (16), which in turn is connected to a housing cover (12). This enables the slide valve to be detached from the support body, and reduces the level of maintenance required by the liquid filter.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.