Microporous paper filter for particulates

Details Microporous paper filter for particulates Microporous paper filter for particulates

2007-05-15

2007-05-15

Pham, Minh-Chau T. (Department: 1724)

Gas separation

Zigzag, corrugated, or conical

C055S500000, C055S501000, C055S527000, C422S180000, C422S182000, C422S310000, C428S136000, C428S181000, C428S182000, C502S527220, C502S527230

Reexamination Certificate

active

10842096

ABSTRACT:
A microporous paper filter (10) for particulates emitted together with the exhaust gases of internal combustion engines, made in the form of a folded up sheet to form a “Greek key” i.e. having several filtering layers (13) placed substantially parallel, connected by means of folds (14), the layers (13) being separated and maintained equidistant through the interposition of spacers (20) each comprising at least one corrugated paper sheet (21, 22) or pleated paper (23).

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