Oil filter with bypass valve
US7981279B2 · kind B2 · utility
1Cited by
5References
10Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Nov 21, 2007 |
| Grant date | Jul 19, 2011 |
| Priority date | — |
| Expiry date | May 7, 2030 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T137/8359
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
An oil filter assembly has a bypass valve and a cover formed with an orifice. In order to provide a simple contamination indicator for the oil filter, there is provided a deflection device that deflects an oil jet emerging through the orifice when the bypass valve is open on the outside of the cover. The oil jet can thus be deflected into a region observable through a filling orifice. A contaminated oil filter can therefore be reliably detected on occasion of a quick visual check, by observing the deflected oil jet.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.