Wire filter element and method of manufacture

Details Wire filter element and method of manufacture Wire filter element and method of manufacture

1993-07-15

1995-02-07

Dawson, Robert A.

Liquid purification or separation

Filter

Supported, shaped or superimposed formed mediums

210498, 210499, 291637, 291638, B01D 2948, B01D 2954

Patent

active

053873408

ABSTRACT:
A wire filter element having slit openings of between 0.5 and 100 microns, and a method of manufacturing the filter element are disclosed. The filter element includes a plurality of generally parallel spaced elongated filter wire members having a trapezoidal cross-sectional shape, or rectangular cross-sectional shape separating pairs of trapezoidal shaped filter wires. Laterally extending support bars secure the filter wire in place. Ridges are formed on one side of the trapezoidal filter wires and on both sides of the rectangular filter wires. The ridges have lateral dimensions the same as the desired slit openings between adjacent filter wires. The filter wires are secured in place with the ridges engaging the upper side portions of adjacent filter wires. The ridges may be permanently fixed with the filter wires or removable after the filter wires are secured in place to define the slit openings.

REFERENCES:
patent: 3640760 (1972-02-01), Nichols, Jr.
patent: 4456531 (1984-06-01), Kubota et al.
patent: 4921599 (1990-05-01), Botsch
patent: 5047148 (1991-09-01), Arai
patent: 5064536 (1991-11-01), Bratten

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