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:
Jul. 22, 1986
Filed:
May. 28, 1985
William B Retallick, West Chester, PA (US);
F Curtiss Dunbar, West Chester, OH (US);
Other;
Abstract
A metal support for a catalyst is disclosed, which is suitable for use in a catalytic converter for an automobile. The support generally does not interact with the catalyst, even at high temperatures, and the catalyst therefore retains its activity for a long period. The support includes a base metal containing chromium, aluminum and silicon, the remainder of the base metal being mostly iron. The specific percentages of chromium, aluminum, and silicon in the base metal can be varied according to a formula. The base metal is coated with a layer of metallic aluminum. A catalyst is applied to the support, preferably by first coating the support with a layer of alumina, and then impregnating the alumina layer with a suitable combustion catalyst. The support can be rolled down to foil thickness. When formed as a foil, the support is particularly useful in making catalytic converters for automobiles. The formula disclosed shows how aluminum or silicon can be substituted for some of the chromium in the base metal. The invention therefore provides a catalyst support of relatively low cost.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile