Filtration
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Apr 4, 1995
Grant Date -
N/A
app pub date -
Feb 24, 1993
filing date -
Feb 27, 1992
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A filter system 10 includes a pre-filter in a pre-filter zone 18 and a final filter in a final filter zone 22. The pre-filter is in the form of at least one inertial filter, e.g. an array 28 of axial flow cyclones 30. The final filter is in the form of a media filter 36 formed of a lofted bat of fibrous material which is of non-homogeneous structure through its depth. An upstream side is lofty, and a downstream side is of set structure. A contaminated fluid flow stream enters via an inlet 12. Contaminants are filtered out by the axial flow cyclones to be removed via a dust cover 32. Pre-filtered fluid flows via a chamber 20 through the media filter 36. After final filtration in the media filter it exits via a chamber 24 and an outlet 14.
First Claim
Other Claims data not available
Family
International Classification(s)
Cited Art Landscape
Patent Citation Ranking
- 43 Citation Count
- B01D Class
- 95.79 % this patent is cited more than
- 30 Age