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. 17, 2009
Filed:
Feb. 27, 2006
Satoshi Ishikawa, Anjo, JP;
Mikio Ishihara, Kariya, JP;
Kazuhide Sato, Aichi-ken, JP;
Denso Corporation, Kariya, JP;
Abstract
In a method of manufacturing an exhaust gas purifying filter that captures and purifies particulates involved in an exhaust gas emitted from an internal combustion engine, a honeycomb mold body of a desired length is firstly made by an extrusion molding step. In a sealing and enlarging step, tapered front parts of a multi-taper jig are inserted into the corresponding openings of the cells. The multi-taper jig is then oscillatory moved in a direction perpendicular to a longitudinal length of the ceramic mold body while heating the partition walls forming the cells, so that the opening of one cell is closed and sealed completely and the opening of the adjacent cell is enlarged in area. Finally, the honeycomb mold body is burned.