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. 01, 1998
Filed:
Sep. 24, 1996
Masato Imamura, Tokyo, JP;
Kiichi Nakajima, Kokubunji, JP;
Katsumi Jindo, Toyokawa, JP;
Toshio Asami, Toyokawa, JP;
Tatsuhiko Kato, Shinshiro, JP;
Kouichi Ushiroebisu, Okazaki, JP;
Yukio Aizawa, Kawasaki, JP;
Yasuo Sekido, Yokohama, JP;
Akira Goto, Yokohama, JP;
Tomonari Komiyama, Kawasaki, JP;
Sintokogio, Ltd., Nagoya, JP;
Abstract
A filter is provided for treating carbon-based particles in exhaust gas discharged from a diesel internal combustion engine, etc., said filter providing in addition to a high throughput capacity, excellent durability, and good economic and maintenance properties, and a device for treating carbon-based particles in exhaust gas having a high throughput capacity, the regeneration of which is easy. This filter is obtained by cutting an end face of a coiled material that is obtained by winding a sheet of a high-temperature resistant stainless steel having resistance heat-generating properties to produce fibers, gathering the thus-produced fibers to form a web, sintering the web, heat-treating the sintered web to form an alumina film on the surface of the sintered fibers, and optionally supporting a catalyst on the alumina film. In the device electrodes are fixed to the free ends of the filter and, when necessary, an electric current is applied from an electric current-supplying device to the electrodes to cause the filter to generate heat.