Multi-element cylindrical filter with equalized flow
US6511599B2 · kind B2 · utility
182Cited by
81References
20Claims
0Family size
Assignee
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Key dates
| Filing date | Dec 18, 2000 |
| Grant date | Jan 28, 2003 |
| Priority date | — |
| Expiry date | Dec 18, 2020 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01D2267/30
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A filter filters fluid flowing along an axial flow direction and includes a plurality of concentric cylindrical pleated filter elements having a common axis. A plurality of annular radial gaps between filter elements provide additional flow axially through the filter, providing equalized flow and reducing restriction. In further embodiments, a central filter element is concentrically surrounded by a cylindrical pleated outer filter element and provides additional flow axially therethrough.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.