Flush-back filter
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
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Nov 15, 1983
Grant Date -
N/A
app pub date -
Apr 12, 1982
filing date -
Apr 18, 1981
priority date (Note) -
Expired
status (Latency Note)
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Abstract
The invention relates to a flush-back filter, in particular for the filtration of oil, having filter elements (filter cartridges) arranged in a circle in the filter housing and a flushing member rotatable around the filter axis for the back-flushing of filter elements with the filtrate. According to the invention said filter elements are arranged on at least two concentric circles within the interior of said filter housing whereby said filter elements lying on one circle are located in the gaps between said filter elements lying on the other circle. For back-flushing of said filter elements horizontal on the concentric circle, there is a common flushing member below and with a small radial dimension, which is driven by a rotary drive. The back-flush filter has at least fourteen to twenty filter elements. Furthermore, a safety filter is arranged on the interior of the filter housing, which encircles said filter elements.
First Claim
Other Claims data not available
Family
| Country | kind | publication No. | Filing Date |
|---|---|---|---|
| DE | C2 | DE3115716 | Apr 18, 1981 |
| JP | A | JPS5817805 | Apr 17, 1982 |
International Classification(s)
- 1982 Application Filing Year
- B01D Class
- 1073 Applications Filed
- 7 Patents Issued To-Date
- 0.66 % Issued To-Date
Cited Art Landscape
Patent Citation Ranking
- 9 Citation Count
- B01D Class
- 0 % this patent is cited more than
- 42 Age