Patent · US Expired

Roller seam welded body for exhaust gas treatment and process for producing the body

US7476825B2 · kind B2 · utility

2Cited by

11References

19Claims

0Family size

Assignee

EMITEC Gesellschaft fuer Emissionstechnologie mbH · DE

Inventors

Peter Hirth · Rösrath, DE
Rolf Brück · Bensberg, DE
Thomas Härig · Eppstein, DE

Key dates

Filing date	Feb 13, 2006
Grant date	Jan 13, 2009
Priority date	—
Expiry date	Feb 13, 2026

Classification

Technology area (CPC F)Mechanical Engineering; Lighting; Heating
CPC primaryF01N2450/22
WIPO fieldMachine tools
WIPO sectorMechanical engineering

Abstract

A process for producing a body for exhaust gas treatment having a plurality of metallic layers, includes bringing the layers into contact with each other in a connection region. A connection is made by a roller seam welding process in such a way that the layers form passages through which a gas stream can flow. A corresponding body for exhaust gas treatment can especially be used as a filter or catalyst carrier body in the automobile industry.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.