Filter element for liquid filters and liquid filter
US8613854B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Nov 7, 2008 |
| Grant date | Dec 24, 2013 |
| Priority date | — |
| Expiry date | Apr 17, 2030 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01D2201/316
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
The invention concerns a filter element as well as a liquid filter wherein the filter element is axially insertable into the filter housing (10, 11). The filter element (21) effects after mounting the closure of a non-return device for the raw liquid to be filtered with at least one non-return diaphragm (27). The non-return diaphragm (27) is attached to a terminal disk (24) of the filter element (21) in such a way that it effects an axial and/or a radial sealing action of the raw side (32) relative to the clean side (33) in the filter housing (10, 11). On the filter housing (10, 11) a drainage opening (18) for liquid is provided that is closed off by an additional sealing surface (31, 49) of the non-return diaphragm (27) when the filter element (10, 11) is installed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.