Reverse flow air filter arrangement and method
US7455707B2 · kind B2 · utility
21Cited by
175References
67Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 10, 2003 |
| Grant date | Nov 25, 2008 |
| Priority date | — |
| Expiry date | Feb 10, 2023 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01D2271/027
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A reverse flow air filter arrangement is provided. The arrangement includes a filter element having first and second end caps, the second end cap having a central drainage aperture. A funnel shape on an interior surface of second end cap is used to direct moisture flow to the drainage aperture. The arrangement includes a housing in which the filter element is positioned, operatively, during use. Certain features in the housing facilitate moisture withdrawal from the filter element while also inhibiting interference with sealing between the filter element and the housing.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.