Filter element and method of making

Details Filter element and method of making Filter element and method of making

2001-04-10

2008-10-21

Cecil, Terry K (Department: 1797)

Liquid purification or separation

Filter

Supported, shaped or superimposed formed mediums

C210S493200, C210S497010, C210S485000, C210S489000, C210SDIG009, C055S521000

Reexamination Certificate

active

07438812

ABSTRACT:
A filter element (10) is provided which can be used to remove microsize contaminant particles (i.e., about 0.5 μm to about 25.0 μm) from aviation fuel. The filter element (10) includes a cylindrical pleated filter media (14) and an exoskeleton support structure (16) supporting the filter media (14). The filter media (14) has a pleat density of about eight to about thirteen pleats per inner diameter inch and is formed only from cellulose-fiber-free and woven-mesh-free layers. The exoskeleton support structure (16) is a screen which is thermally bonded to the pleats' peaks in such a manner that the filter media (14) is sufficiently supported without conventional endoskeleton support layers.

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