Metal foil with an embossed structure for use in the purification of exhaust gas and a tool and method for its production
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United States of America Patent
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Oct 2, 2007
Grant Date -
Mar 4, 2004
app pub date -
Jan 16, 2003
filing date -
Jan 16, 2002
priority date (Note) -
Expired
status (Latency Note)
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Abstract
The subject matter of the present invention relates to a metal foil with an embossed structure for use in the purification of exhaust gas as well as to a tool and a method for its production. In the direction of the main flow, the metal foil has alternating peaks with ascending flanks and descending flanks and valleys, with the peaks and valleys being divided into rows parallel to the direction of the main flow and with the peaks and valleys of adjacent rows being staggered in the direction of the main flow in such a way that the ascending flanks and the descending flanks of the staggered peaks form a trough which connects the staggered valleys.
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