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:
Jun. 06, 1995
Filed:
Apr. 19, 1993
Kouji Yoshizaki, Susono, JP;
Takuzou Kako, Chiyoda, JP;
Toyota Jidosha Kabushiki Kaisha, Toyota, JP;
Nippon Steel Corporation, Tokyo, JP;
Abstract
An electrically heatable catalytic converter for converting pollutant materials from an engine, such as carbon monoxide, unburned hydrocarbons, nitrogen oxides, etc., to carbon dioxide, nitrogen and water. A catalytic core has a rod center electrode, metal strips, such as corrugated strips and plane strips, and insulation layers spirally wound together about the center electrode to form a spiral electrical path. The central region adjacent to the center electrode and the peripheral region of the catalytic core are wound without intervening of the insulation layer and contact metal to metal. The intermediate region of the core is mainly heated, and there is almost no heat generation in the central and peripheral regions of the catalytic core.