Fluted filter medium and process for its manufacture

Details Fluted filter medium and process for its manufacture Fluted filter medium and process for its manufacture

2011-08-16

2011-08-16

Menon, Krishnan S (Department: 1777)

Liquid purification or separation

Filter

Supported, shaped or superimposed formed mediums

C055S521000, C156S060000, C264S171100, C210S493300, C210S767000, C210S321740, C210S321640

Reexamination Certificate

active

07997425

ABSTRACT:
A fluted filter medium (74) comprising a corrugated filter sheet, where each flute (120) has an end closure defined by a regular fold arrangement in the corresponding corrugation. Each regular fold arrangement has at least four folds. A process for manufacturing the fluted filter medium comprising deforming a portion of each corrugation to define at least one foldable tip, and folding the said tip in order to close the corrugation.

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Translation of JP1171615.

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