Filter and filter assembly

Details Filter and filter assembly Filter and filter assembly

2006-07-17

2008-03-11

Greene, Jason M. (Department: 1724)

Gas separation

Specific media material

Ceramic or sintered

C055S282200, C055S282300, C055S385300, C055S484000, C055S524000, C055SDIG010, C055SDIG030, C060S297000, C060S299000, C060S311000

Reexamination Certificate

active

07341614

ABSTRACT:
The invention provides a filter that has a plurality of through holes and satisfies the expression 2.5×A/B+52.5≦C≦2.5×A/B+60.2 (A≦20, 0<B≦20), where A(%) represents the ratio of pores with a pore diameter of 10 μm or less to the total pore volume in a wall part between the through holes; B(%) represents the ratio of pores with a pore diameter of 30 μm or more to the total pore volume in the wall part; and C(%) represents the aperture ratio of a plane perpendicular to the through holes.

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International Bureau, ITEC International Patent Firm, Notification of Transmittal of Copies of Translation of the International Preliminary Report on Patentability, mailed Jul. 12, 2007.

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