Fluid filter with restrictive filter media for pressure relief
US7615146B2 · kind B2 · utility
0Cited by
2References
15Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 17, 2006 |
| Grant date | Nov 10, 2009 |
| Priority date | — |
| Expiry date | Oct 17, 2026 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01D2201/34
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A fluid filter assembly having a relief valve for visually indicating when a filter element may be replaced. The fluid filter assembly of the present invention provides a vertical, transparent housing having a fluid inlet for communicating a fluid into the housing and a fluid outlet for communicating fluid downstream of the housing. A filter element is disposed within the housing between the fluid inlet and the fluid outlet for filtering the fluid. The relief valve can also be in the form of a more restrictive filter media 42.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.