Gas separation – Specific media material – Ceramic or sintered
Reexamination Certificate
2005-06-07
2005-06-07
Smith, Duane (Department: 1724)
Gas separation
Specific media material
Ceramic or sintered
C055S282300, C055S385300, C055S484000, C055SDIG003, C060S311000
Reexamination Certificate
active
06902599
ABSTRACT:
The invention concerns a filtering body (7) consisting of a plurality of adjacent channels through the walls of which the exhaust gases are filtered. It comprises first (12to23) and second (8to11) filtering zones, the surface filtering the gases, relative to the unit area of the gas intake of the body (7), being different in the first (12to23) and second (8to11) zones. The invention is applicable to a diesel engine.
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Patent Abstracts of Japan vol. 005, No. 148 (C-072), Sep. 18, 1981 & JP 50 081135 A, Jul. 2, 1981.
Greene Jason M.
Saint-Gobain Centre de Recherches et d'Etudes Europeen
Smith Duane
Young & Thompson
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