Gas separation – Plural serial basically diverse separating media – Plural stages in unitary casing
Patent
1996-02-29
1997-12-23
Chiesa, Richard L.
Gas separation
Plural serial basically diverse separating media
Plural stages in unitary casing
55498, 55510, B01D 2706
Patent
active
057003041
ABSTRACT:
A filter element is provided. The filter element generally includes a first liner, a region of filter media positioned downstream from the first liner and a screen arrangement positioned along a portion of the first liner downstream surface and oriented to block a portion of the first liner to flow directly therethrough and into a portion of the filter media directly associated therewith. Preferred elements are generally cylindrical, having expanded metal outer and inner liners with pleated paper media positioned therebetween. The preferred screen arrangement includes a polymeric sleeve, partially embedded in one of the end caps. Also according to the invention an overall filter arrangement or assembly is provided. Such an assembly includes the filter element as well as a housing and a precleaner arrangement.
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Chiesa Richard L.
Donaldson & Company, Inc.
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