Multiple stage air-intake filter apparatus
US6348077B1 · kind B1 · utility
7Cited by
17References
10Claims
0Family size
Assignees
Inventors
Key dates
| Filing date | Nov 19, 1999 |
| Grant date | Feb 19, 2002 |
| Priority date | — |
| Expiry date | Nov 19, 2019 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01D2279/60
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A multiple stage air-intake filter has a first stage to pre-clean air. The air-intake filter has a second stage. Air pre-cleaned by the first stage is directed to the second stage by a fluid carrying juncture. The second stage includes a first and second filter element in series which filters air received from the first stage. The second stage has an air inlet and an air outlet. The fluid carrying juncture and the second stage air outlet are in line.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.