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:
Oct. 23, 1979
Filed:
Sep. 18, 1978
Haren S Gandhi, Farmington Hills, MI (US);
Mordecai Shelef, Southfield, MI (US);
Hsien C Yao, Dearborn Heights, MI (US);
Joseph T Kummer, Ypsilanti, MI (US);
Henryk K Stepien, Dearborn Heights, MI (US);
Ford Motor Company, Dearborn, MI (US);
Abstract
A catalyst system is taught for treating exhaust gases from an internal combustion engine. The catalyst system includes a substrate and a wash coat on the substrate. The wash coat is formed substantially of alpha phase alumina. A catalyst is placed on the wash coat consisting of rhodium metal or rhodium metal with another catalyst metal. By using alpha phase alumina as the wash coat, the rhodium is not dissolved into the wash coat during periods when the catalyst system is subjected to high temperature oxidizing conditions.