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:
Sep. 22, 1987
Filed:
Feb. 10, 1986
Applicant:
Inventors:
Atushi Okajima, Kariya, JP;
Hitoshi Yoshida, Okazaki, JP;
Yukihisa Takeuchi, Aichi, JP;
Masanori Fukutani, Nagoya, JP;
Assignee:
Nippondenso Co., Ltd., Kariya, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B01D / ; C04B / ;
U.S. Cl.
CPC ...
55523 ; 55DI / ; 2105101 ; 428116 ; 422180 ; 502527 ;
Abstract
A porous ceramic monolith for use as a filter (1) for Diesel exhaust gases has inlet bores (61) closed at an outlet end (8) of the filter (1) and outlet bores (62) closed at an inlet end (7) of the filter. The inlet and outlet bores (61 and 62) are interlaced with each other and separated from each other by porous partition walls (3) each having gas-permeable pores therein. The inlet and outlet bores have open ends (9) diverged axialy outwardly of the bores to increase opening ratio in each end of the filter (1) thereby decreasing the pressure loss across the filter.