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:
Dec. 29, 1981
Filed:
May. 30, 1980
Tsuneaki Narumiya, Yokohama, JP;
Seiji Izuhara, Aichi, JP;
Bridgestone Tire Company Limited, Tokyo, JP;
Abstract
A device for the purification of exhaust gas is disclosed. This purification device comprises a ceramic porous body having a three-dimensional network cellular structure with a plurality of interconnected voids and a bulk specific gravity of 0.25-0.6, an activated alumina layer covering the surfaces of cell strands of the ceramic porous body, and a noble metal catalyst layer supported on the activated alumina layer, or comprises a reactive member composed of the purification device as described above, and an agitating member composed of a ceramic porous body or a gas adsorbing member composed of a ceramic porous body and a gas adsorbent applied to the ceramic porous body.