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:
Feb. 17, 1987
Filed:
Jun. 07, 1985
Yasunao Miura, Kasugai, JP;
Nippondenso Co., Ltd., Kariya, JP;
Abstract
A ceramic filter for collecting Diesel exhaust particulates has a plurality of interlaced porous internal walls defining a plurality of axial inlet passages extending adjacent to a plurality of axial outlet passages. Each of the internal walls has a three dimensional porous ceramic network structure to permit gases to flow from an adjacent inlet passage through the pores in the wall to an adjacent outlet passage. The cross-sectional configurations of the inlet and outlet passages is determined to assure that each of the internal walls has a wall thickness which varies widthwise of the wall. The wall thickness is minimum in the central zone of the width of each of the walls and is increased toward the lateral sides of the width of each of the walls.