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:
Nov. 24, 1992
Filed:
Aug. 30, 1990
Applicant:
Inventors:
Christophe Delaunay, Paris, FR;
Didier Loco, Fontenay aux Roses, FR;
Andre Walder, L'Hay les Roses, FR;
Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B01J / ; C22C / ; C22C / ;
U.S. Cl.
CPC ...
422180 ; 422177 ; 422179 ; 420 34 ; 420 40 ; 420 62 ; 420 79 ; 148325 ; 428606 ; 502439 ; 502527 ;
Abstract
An element is disclosed for filtering and/or purifying hot gases, comprising a fibrous structure with a predetermined degree of porosity and formed of metal alloy fibrils of the MCrAlX type, in which M is a matrix chosen from iron and/or nickel and/or cobalt, and X is an element reinforcing the adhesion of the oxide layer which is formed on the fibrils in contact with the hot gases, chosen from zirconium, yttrium, cerium, lanthanum and misch metal.