Self-sealing liquid filter

Details Self-sealing liquid filter Self-sealing liquid filter

1996-03-22

1997-12-30

Walker, W. L.

Liquid purification or separation

Filter

Supported, shaped or superimposed formed mediums

2104935, 21049701, 156218, 55497, 55521, B01D 2706

Patent

active

057026033

ABSTRACT:
There is provided a liquid filter formed of a pleated filter material or laminate where the pleat folds are closely adjacent such that they are separated by less than 6 mm. The downstream pleat tips are supported by a rigid support structure of an open porous lattic or the like. Between the downstream pleat tips and the rigid support structure is a self-sealing fibrous cover layer having an effective mean flow pore size (MFPS) greater than the effective MFPS of the pleated filter material.

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patent: 4877527 (1989-10-01), Brownell
patent: 4938869 (1990-07-01), Bayerlein et al.
patent: 5582907 (1996-12-01), Pall

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