Chemical apparatus and process disinfecting – deodorizing – preser – Chemical reactor – Waste gas purifier
Reexamination Certificate
2003-02-25
2008-08-19
Griffin, Walter D. (Department: 1797)
Chemical apparatus and process disinfecting, deodorizing, preser
Chemical reactor
Waste gas purifier
C422S177000, C422S168000
Reexamination Certificate
active
07413717
ABSTRACT:
The ceramic honeycomb structure according to the present invention includes a cell group having a plurality of cells which are divided each other by porous partition walls and functioning as a fluid channel, and porous outer wall surrounding and holding outermost peripheral cells located at a circumference of the cell group. In the partition walls, a part located at least one opening end of the cells of the cell group constitutes a reinforced partition wall part having higher strength than the other part of the partition walls (normal partition wall part) as well as having a variation of porosity per unit volume within ±2%. Uniform and excellent erosion resistance is achieved throughout the reinforced partition wall part.
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Hirai Sadaaki
Kato Yasushi
Kawae Takayuki
Griffin Walter D.
NGK Insulators Ltd.
Oliff & Berridg,e PLC
Young Natasha
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