Filter element
US8225940B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Mar 4, 2006 |
| Grant date | Jul 24, 2012 |
| Priority date | — |
| Expiry date | Apr 17, 2028 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01D2239/0654
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A filter element includes a filter material (10) having individual filter folds (12) folded in a star-like manner. At least one fluid-permeable support element (26) extends at least partially in the space between two adjacent filter folds (12) and/or on the inner peripheral side and/or external peripheral side of the filter folds (12). The support element (26) is provided with filter-active substances or is made of filter-active substances. A certain type of filter auxiliary agent can be obtained which is used to reduce influences of fluid components which reduce the service life, in the form of specific ageing products or in the form of other agents which damage the fluid.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.