Two pleated filter composite having cushioning layers

Details Two pleated filter composite having cushioning layers Two pleated filter composite having cushioning layers

1995-03-07

1996-09-03

Drodge, Joseph W.

Liquid purification or separation

Filter

Supported, shaped or superimposed formed mediums

55521, 2104931, 2104935, B01D 2921

Patent

active

055520480

ABSTRACT:
A filter includes a pleated filter element having longitudinally extending pleats and a wrap member wrapped around the filter element. The wrap member is joined to the peaks of the pleats and has openings for increasing the dirt capacity of the filter. The filter element may be a composite of a filter layer, upstream and downstream support and drainage layers, a cushioning layer between the upstream support and drainage layer and the filter layer, and polymeric beads on the downstream side of the downstream support and drainage layer. An extruded polymeric mesh may comprise one or both of the upstream and downstream support and drainage layers.

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