Filter device
US7481926B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Feb 15, 2006 |
| Grant date | Jan 27, 2009 |
| Priority date | — |
| Expiry date | Aug 14, 2026 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01D2201/52
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A filter device having a filter element which has at least one end disk (19) having axially extending elevations (20) configured in the form of at least one recognizable character, in which the elevations correspond in configuration to passages (35-37) through an intermediate element (23). Behind the intermediate element there is an element (24) which faces the housing (10) of the filter unit and is provided with axially projecting appendages (30, 31) which extend into the passages (35-37) of the intermediate element (23). Intermediate element (23) and element (24) are axially movably mounted on a central mandrel (17), and the appendages (30, 31) can be pushed axially by the filter element (12) out of the passages (35-27) of the intermediate element (23) so that intermediate element (23) and element (24) can rotate relative to each other and move axially and the filter element can be moved to its fully installed position.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.