Cylindrical filter

Details Cylindrical filter Cylindrical filter

1996-10-29

1998-01-27

Walker, W. L.

Liquid purification or separation

Filter

Supported, shaped or superimposed formed mediums

2104931, 21049701, 210504, 210505, 210508, 428131, 428171, 156218, B01D 2714

Patent

active

057118787

ABSTRACT:
A cylindrical filter is disclosed which comprises a wound up layer of a fibrous aggregate comprising melt-adhesive composite fibers bonded each other through the melt of a melt-adhesive component in the composite fibers and a layer of non-woven fabric of glass fibers, the layer of non-woven fabric is arranged on the outer surface of the wound up layer of the fibrous aggregate, and glass fibers have a smaller diameter than that of the melt-adhesive composite fibers. The cylindrical filter has an excellent filter rating and filter life.

REFERENCES:
patent: 4100009 (1978-07-01), Nakajima et al.
patent: 4221226 (1980-09-01), Keifer et al.
patent: 5503745 (1996-04-01), Ogata et al.
patent: 5543047 (1996-08-01), Stoyell et al.

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