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 7909916 B1

PDF
Full Text
Expired
Date of Patent:
Mar. 22, 2011

Filed:

Dec. 05, 2006
Applicants:

Toshiki Ohya, Hino, JP;

Toshikatsu Muramatsu, Hino, JP;

Eiji Kunishima, Hino, JP;

Jun Ozawa, Yokohama, JP;

Inventors:

Toshiki Ohya, Hino, JP;

Toshikatsu Muramatsu, Hino, JP;

Eiji Kunishima, Hino, JP;

Jun Ozawa, Yokohama, JP;

Assignees:

Hino Motors, Ltd., Tokyo, JP;

Tokyo Roki Co., Ltd., Yokohama-shi, JP;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B01D 46/04 (2006.01);
U.S. Cl.
CPC ...
Abstract

Provided is a method for performing maintenance of a particulate which can reliably remove combustion residue by means of backwash air without use of hot water and the like while cutting equipment expenses, so that substantial increase in exhaust pressure and deterioration of fuel economy during operation can be prevented. When maintenance of the particulate filteris to be performed, a filleris filled to each of passageswith outlets unplugged with plugsso as to reduce an inner volume of the passage, and then backwash airis blown into the passageswith the unplugged outlets.


Find Patent Forward Citations

Ohya, Toshiki. (2011). Maintenance method for particulate filter (U.S. Patent No. 7909916). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/7909916

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