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:
Aug. 17, 2004
Filed:
Oct. 19, 2001
Zenichiro Kato, Mishima, JP;
Hiromichi Yanagihara, Gotenba, JP;
Kazuhiko Shiratani, Susono, JP;
Youichi Nagai, Itami, JP;
Satoru Itsuaki, Itami, JP;
Kohei Shimoda, Itami, JP;
Kazutoshi Shibutani, Itami, JP;
Other;
Abstract
A particulate filter can be prevented from being damaged. The ashes can be removed from the particulate filter without by burning. A non-woven welding operation for a sealing portion can be simplified. The operability is enhanced by facilitating an insertion of a multi-layer body into a heat resisting container. The number of recycling processes executed when particulate matters such as soot are accumulated on the particulate filter is made as small as possible. A particulate filter comprises an axial core composed of a heat resisting metal, a multi-layer body formed by winding said axial core with a multi-layer member into which a non-woven fabric and a corrugated sheet each composed of a heat resisting metal are tiered, and a heat resisting container charged with said multi-layer body