Gas separation – With nonliquid cleaning means for separating media – With heating or cooling means
Reexamination Certificate
2006-03-07
2006-03-07
Greene, Jason M. (Department: 1724)
Gas separation
With nonliquid cleaning means for separating media
With heating or cooling means
C055S282200, C055S385300, C055S523000, C055S524000, C055SDIG007, C055SDIG010, C055SDIG030, C060S297000, C060S311000, C428S116000, C428S117000, C264S628000, C264S630000, C264S631000, C264S154000, C264S156000, C264SDIG048
Reexamination Certificate
active
07008461
ABSTRACT:
There is disclosed a honeycomb structure usable as a filter for trapping/collecting particulates included in an exhaust gas; and the structure can remove ashes deposited inside without requiring any special mechanism or apparatus or without being detached from the exhaust system. The structure includes: a plurality of through channels9extending to the axial direction of the honeycomb structure, porous partition walls7separating through channels one another, and plugging portions11plugging predetermined through channels9aat one end and the rest of through channels9bat other end opposite to the plugged end of the predetermined through channels, wherein a through-hole is formed in at least a part of the plugging portion, and its diameter is 0.2 mm or more, but not more than a value which is smaller between 1 mm and 75% of a diameter of an inscribed circle of the through channel.
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Kuki Tatsuyuki
Yamada Toshio
Greene Jason M.
NGK Insulators Ltd.
Oliff & Berridg,e PLC
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