Filter cartridge

Details Filter cartridge Filter cartridge

2006-03-21

2006-03-21

Savage, Matthew O. (Department: 1724)

Liquid purification or separation

Filter

Supported, shaped or superimposed formed mediums

C210S493400, C210S496000, C210S497100

Reexamination Certificate

active

07014050

ABSTRACT:
A filter cartridge comprising a strip, long fiber non-woven fabric which comprises a thermoplastic fiber and in which at least a part of fiber intersections is adhered, which is wound around a perforated cylinder in a twill form, has made it possible to obtain a cylindrical filter cartridge which is excellent in a liquid-passing property, a filter life and a stability in a filtering accuracy. The thermoplastic fiber constituting the above long fiber non-woven fabric is particularly preferably a thermally adhesive composite fiber comprising a low melting point resin and a high melting point resin and having a melting point difference of 10° C. or more between those of both resins.

REFERENCES:
patent: 3334752 (1967-08-01), Matravers
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patent: 45810/1992 (1992-02-01), None
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patent: 131412/1992 (1992-12-01), None
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patent: 2815/1993 (1993-01-01), None
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patent: 328356/1995 (1995-12-01), None
patent: 2000-279727 (2000-10-01), None
English Language translation of Japanese Patent 4-45811.

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