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.:

US 7421839 B1

PDF
Full Text
Expired
Date of Patent:
Sep. 09, 2008

Filed:

Sep. 10, 2004
Applicant:

Tatsuki Igarashi, Hino, JP;

Inventor:

Tatsuki Igarashi, Hino, JP;

Assignee:

Hino Motors, Ltd., Hino-shi, JP;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F01N 3/00 (2006.01);
U.S. Cl.
CPC ...
Abstract

Attained is a heat generative exhaust emission control device with less electric power consumption and with no harmful gas discharged to atmosphere. A porous filter bodyfor capturing particulates in exhaust gasthrough passing of the exhaust gasis provided with an electric heaterso as to heat the filter body; thus, a heat regenerative particulate filteris provided. The heat regenerative particulate filtersare accommodated in filter casingsandwithin an exhaust pipe, and oxidation catalystsandare arranged upstream and downstream of and adjacent to the heat regenerative particulate filterso as to obtain thermo-keeping or heat insulation effect to the heat regenerative particulate filter


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