Zig zag filter element

Details Zig zag filter element Zig zag filter element

1986-06-24

1988-04-19

Fisher, Richard V.

Liquid purification or separation

Filter

Supported, shaped or superimposed formed mediums

2104935, 2104972, 210506, 55488, 55500, 55521, 55524, B01D 4652, B01D 2706, B01D 2906

Patent

active

047387785

ABSTRACT:
The filter element of the present has a plurality of wavy portions which are so arranged that a plurality of wavy portions make a generally ring like structure. In order to reduce the pressure drop when the fluid flows through the filter element, the present filter element has a special shaped radial gaps. Namely, the width of a first radial gaps, which is formed within adjacent wavy portions and which connects with an inner space formed at the center of the generally ring like structure, increases from the outer end thereof to the inner end thereof. The width of a second radial gap, which is connected with outer atmosphere, decreases from the outer end thereof to the inner end thereof. Both axial ends of the wavy portions are covered with the adhesive sheet on which adhesive layer is cladded.

REFERENCES:
patent: 2627350 (1953-02-01), Wicks
patent: 2726184 (1955-12-01), Cox et al.
patent: 2914179 (1959-11-01), Foust
patent: 3448862 (1969-06-01), Kudloxy
patent: 4227953 (1980-10-01), Wasielewski et al.
European Search Report-Appln. No. EP 86 10 8688.

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