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. 22, 1994
Filed:
Oct. 18, 1993
Bohumil Humpolik, Ludwigsburg, DE;
Jurgen Bayer, Esslingen, DE;
Emitec Gesellschaft fuer Emissionstechnologie mbH, Lohmar, DE;
Abstract
An apparatus for catalytically decontaminating exhaust gases, preferably for motor vehicle engines, includes a metal carrier body having a plurality of corrugated, or smooth and corrugated, sheet metal layers. The sheet metal layers have smooth end segments overlapping one another and being disposed as an outer layer on the periphery of the metal carrier body. A jacket encompasses the metal carrier body. At least one weld seam may connect the smooth end segments to one another and to the jacket. A mechanical retaining device may form-lockingly secure the metal carrier body in the axial direction in the jacket while engaging an end surface of the outer layer. A method for producing the apparatus includes initially coating individual corrugated, or smooth and corrugated, sheet metal layers of a metal carrier body with a wash coat, except for uncoated regions of lengthened smooth end segments of the sheet metal layers overlapping one another and being disposed as an outer layer on the periphery of the metal carrier body. The sheet metal layers are intertwined and inserted into a jacket encompassing the metal carrier body. The sheets are simultaneously connected to one another and to the jacket in the uncoated regions of the lengthened, smooth end segments resting on one another with at least one weld seam.