Filter device

Details Filter device Filter device

2005-08-23

2005-08-23

Savage, Matthew O. (Department: 1724)

Liquid purification or separation

Flow, fluid pressure or material level, responsive

Discharge of treated material

C210S130000, C210S316000, C210S323200, C210S430000, C210S437000, C210S450000, C210S456000

Reexamination Certificate

active

06932900

ABSTRACT:
A filter device includes a filter housing (10) in which at least two filter elements (12, 14) with differing filter grades of filter material (16) are arranged. The filter elements are partially separated from each other by a separating device (18), with a through channel (24) of predetermined cross-section for a hydraulic connection between neighboring filter chambers (20, 22),. The filter chambers arranged prior to the filter materials (16) in the flow direction of the fluids for filtering. The filter device permits a combination of main- and side-stream filters in the smallest possible space, whereby very good purity levels for the filtered fluid are nevertheless achieved.

REFERENCES:
patent: 3344923 (1967-10-01), Pall et al.
patent: 4655914 (1987-04-01), Wada
patent: 4915837 (1990-04-01), Verity
patent: 5298158 (1994-03-01), Anderson
patent: 1951668 (1971-04-01), None
patent: 4221897 (1994-01-01), None
patent: 860871 (1961-02-01), None
patent: 965328 (1964-07-01), None

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