Reverse flow air filter arrangement and method
US5897676A · kind A · utility
215Cited by
24References
19Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 5, 1998 |
| Grant date | Apr 27, 1999 |
| Priority date | — |
| Expiry date | Jun 5, 2018 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01D2271/022
- 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.