Method for expanding tobacco
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United States of America Patent
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Jun 4, 2002
Grant Date -
N/A
app pub date -
Mar 2, 2000
filing date -
Mar 3, 1999
priority date (Note) -
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Abstract
A method and an apparatus for expanding foodstuffs and luxury foodstuffs/tobacco materials capable of being expanded, in particular moist tobacco materials, wherein said materials in a carrier flow comprising steam pass through an expansion zone, comprising a Laval nozzle, in which the speed of sound is attained in the narrowest cross section.
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