Filter element

Details Filter element Filter element

1996-12-06

1998-04-07

Walker, W. L.

Liquid purification or separation

Filter

Within flow line or flow line connected close casing

210455, 2104931, 55500, 55527, 55DIG33, 55DIG35, 425406, 425510, 264160, 264345, 264DIG48, 156228, B01D 2708

Patent

active

057360413

ABSTRACT:
A filter element for use in a filter holder having a sealing surface and method of making a filter. The filter being made of a folded material of manufacture having a circumferential sealing rim and having a spacer to keep open the folded areas. The spaced being formed by at least one cover layer folded with the filter. The sealing rim being formed to be received in the sealing surface and with the folds formed by at least one cover layer and the filter material both along and transverse to the folds around the circumference of the at least one cover layer and filter material being pressed into said sealing rim at a temperature above the softening temperature of at least a thermoplastic resin provided in at least one of the layers of the cover and filter material.

REFERENCES:
patent: 4636231 (1987-01-01), Thornton et al.
patent: 4678578 (1987-07-01), Nodes et al.
patent: 4798676 (1989-01-01), Matkovich

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