The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 15, 2011
Filed:
Dec. 22, 2004
Sébastien Bardon, Lyons, FR;
Anthony Briot, Avignon, FR;
Vincent Gleize, Avignon, FR;
Saint-Gobain Centre de Recherches et d'Etudes European, Courbevoie, FR;
Abstract
A filter block, particularly for filtering particulates present in the exhaust gases of an internal combustion engine, including peripheral inlet () and outlet () channels arranged alternately at the periphery of the block and each including an external wall () exposed to the exterior of the block and an internal wall () arranged inside the block. The block according to the invention is remarkable in that it includes at least one group (G) of two adjacent peripheral channels () such that, in a transverse plane of section (P), the ratio R of the average thickness 'E' of all the external walls () of the group (G) to the average thickness 'e' of all the internal walls () of the (G) is greater than 1.2.