Filtering cartridge, in particular for internal combustion engine
US6402800B1 · kind B1 · utility
28Cited by
12References
12Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Oct 19, 2000 |
| Grant date | Jun 11, 2002 |
| Priority date | — |
| Expiry date | Oct 19, 2020 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF02M35/024
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A filter cartridge has a tubular filter element made from a porous, flexible sheet forming an annular succession of pleats having axial ridges, in the form of vanes all curved in a same circumferential direction, each vane comprising an upper face and a lower face. The lower face and upper face of each vane has lines of least resistance forming hinges, enabling the curvature of the vanes to be better controlled.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.