Filter anti-drainback valve and media pack seal
US8152996B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 24, 2006 |
| Grant date | Apr 10, 2012 |
| Priority date | — |
| Expiry date | Feb 22, 2029 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01D27/106
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A filter is provided having a housing that includes a cavity. A center tube includes first and second ends spaced from one another. A seat extends radially from the center tube and is arranged between the first and second ends. A media pack is arranged within the cavity and supported on the seat such that the center tube extends through a central opening of the media pack. An anti-drainback valve is supported on the seat and is in sealing engagement with the center tube and the media pack. The housing includes a tapping plate that provides an inlet and outlet. An annular lip of the anti-drainback valve is in sealing engagement with the tapping plate when in a closed position in which the engine is shut off.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.